Wednesday, December 31, 2008

Heavy Snow For Portions Of The Region Today; Winter Storm Warning, Winter Weather Advisory & Wind Chill Advisory In Effect

Local Update...
   JRWeather Winter Storm Warning In Effect Until 5PM This Evening; JRWeather Winter Weather Advisory In Effect Until 5PM This Evening; JRWeather Wind Chill Advisory In Effect From 6PM This Evening Until 12PM Thursday...

JRWeather WINTER STORM WARNING
     JRWeather has upgraded the Winter Weather Advisory to a Winter Storm Warning For Bennington, and Windham Counties in Vermont until 5PM.

     A fast moving clipper type system will continue to race east, and off the coast of Long Island by tonight. The storm has been producing some significant snowfall upstream in Western New York, and this will likely push through southern Vermont. Heavy snow will fall throughout the morning and afternoon hours before lightening up late this afternoon or early this evening. Total snow accumulations will range from 5-9 inches in the Warning Area. Of additional concern is winds will be increasing, into the 10-20MPH range with some isolated gusts to 40MPH. This will result in blowing and drifting snow.

     Snow should have pretty much come to an end by late tonight. A Winter Storm Warning is issued when severe winter weather is likely. In this case the Winter Storm Warning is for moderate to heavy amounts of snow, and blowing and drifting snow. New Years travel will be impacted by this storm. Snow rates of 1-2 inches per hour, along with blowing and drifting snow will result in visibilities to a quarter mile or less at times. Snow should come to an end by this evening, but will likely still result in significant travel impacts for New Years eve travelers. If you are able to postpone your travel until later this evening, it is highly recommended. As road crews will be able to plow and sand the roads, making travel much safer.


JRWeather WINTER WEATHER ADVISORY
     JRWeather continues a Winter Weather Advisory for Rutland, Windsor, and Eastern Addison Counties In Vermont Until 5PM Wednesday Evening.

     A fast moving clipper type system will continue to race east, and off the coast of Long Island by tonight. Moderate to Heavy snow will fall throughout the morning and afternoon hours before lightening up late this afternoon or early this evening. Total snow accumulations will range from 3-5 inches with isolated higher amounts in the extreme southern portions of Rutland, and Windsor Counties in the Advisory Area. Of additional concern is winds will be increasing, into the 10-20MPH range with some isolated gusts to 40MPH. This will result in blowing and drifting snow.

     Snow should have pretty much come to an end by late tonight. A Winter Weather Advisory is issued when significant but not severe winter weather is likely. In this case the Winter Weather Advisory is for moderate amounts of snow, and blowing and drifting snow. New Years travel will be impacted by this storm. Snow rates of 1-2 inches per hour, along with blowing and drifting snow will result in visibilities to a quarter mile or less at times this morning and early afternoon. Snow should come to an end by this evening, but will likely still result in some significant travel impacts for New Years eve travelers. If you are able to delay your travel until later this evening that would be recommended, as road crews will be able to plow and sand the roads, making travel much safer.


JRWeather WIND CHILL ADVISORY
     JRWeather continues a Wind Chill Advisory for all of Vermont, and all Of Northern New York From 6PM Wednesday Evening Until 12PM Thursday.

     A clipper system that will be moving rapidly across Pennsylvania, and off the coast of Long Island by tonight combined with a strong high pressure system to the west, over the center of the country will result in a tightening pressure gradient, with gusty winds. Arctic air already in place combined with breezy conditions will produce dangerously cold wind chills. Air temperatures will be in the 5F below to 5F above zero overnight Wednesday. This combined with winds of 10-20MPH with gusts to 35MPH will produce wind chill values in the 15F - 30F below zero range. Colder spots in the Northeast Kingdom, and near Saranac Lake in New York could see wind chills as low as -35F. That would be in the warning criteria range, however those type of wind chills are not expected over a wide enough area to warrant a Wind Chill Warning. It is important that when your outdoors you dress in several layers, with a nice warm coast, gloves, and hat in order to prevent hypothermia, and frost bite. These wind chills are especially dangerous, since it is New Years Eve and many people will be out partying. You will be fine as long as you dress warmly!

     Temperatures should rise enough, and winds should abate enough to allow the Wind Chill Advisory to expire at noon on Thursday, although winds chills will still be very cold, in the 10 below to 5 above range. Once again make sure to dress warmly in layers, and wear a heavy duty winter coat, along with a good pair of gloves, and a hat. If you do not do this and are outside, frostbite can occur in about 30 minutes, and hypothermia can set in with much less time. A Wind Chill Advisory is issued for wind chills in the 15 below to 30 below zero range. Stay tuned.


     Heavier snowfall amounts have been occurring west of the region, so I have upgraded the Winter Weather Advisory to a Winter Storm Warning for Bennington, and Windham Counties for 5-9 inches of snow, along with some blowing and drifting snow, as wind will be increasing throughout the day to due, strengthening low pressure moving rapidly east. Other then that everything else remains the same. Updated maps below. Stay tuned for any further updates.


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Tuesday, December 30, 2008

Snow & Wind Chill Problems For Wednesday; Winter Weather Advisory & Wind Chill Advisory In Effect

Local Update...
   Snow During The Day Wednesday Will Taper Of To Some Very Cold Temperatures And Dangerously Cold Wind Chills; JRWeather Winter Weather Advisory in Effect Until 5PM Wednesday Evening; JRWeather Wind Chill Advisory In Effect From 6PM Wednesday Evening Until 12PM Thursday...


JRWeather WINTER WEATHER ADVISORY
     JRWeather has issued a Winter Weather Advisory for Rutland, Windsor, Bennington, Windham, and Eastern Addison Counties In Vermont Until 5PM Wednesday Evening.

     A fast moving clipper type system will be moving across Pennsylvania, and off the coast of Long Island by Wednesday Night. As the storm moves closer to the coast, it will very slowly strengthen, bringing in some Atlantic moisture, this will help produce a period moderate to occasionally heavy snow for the Morning and afternoon hours before lightening up Wednesday evening. Total snow accumulations will range from 3-6 inches in the Advisory Area.

     Snow should have pretty much come to an end by late Wednesday night. A Winter Weather Advisory is issued when significant but not severe winter weather is expected. In this case the winter weather advisory is for moderate amounts of snow. New Years travel will be impacted by this storm, but not severely. Roads will become slick but not enough to make travel impossible. Drive cautiously, and defensively, and leave extra time to reach your destination.


JRWeather WIND CHILL ADVISORY
     JRWeather has issued a Wind Chill Advisory for all of Vermont, and all Of Northern New York From 6PM Wednesday Evening Until 12PM Thursday.

     A clipper system that will be moving rapidly across Pennsylvania, and off the coast of Long Island by tonight combined with a strong high pressure system to the west, over the center of the country will result in a tightening pressure gradient, with gusty winds. Arctic air already in place combined with breezy conditions will produce dangerously cold wind chills. Air temperatures will be in the 5F below to 5F above zero overnight Wednesday. This combined with winds of 10-20MPH with gusts to 35MPH will produce wind chill values in the 15F - 30F below zero range. Colder spots in the Northeast Kingdom, and near Saranac Lake in New York could see wind chills as low as -35F. That would be in the warning criteria range, however those type of wind chills are not expected over a wide enough area to warrant a Wind Chill Warning. It is important that when your outdoors you dress in several layers, with a nice warm coast, gloves, and hat in order to prevent hypothermia, and frost bite. These wind chills are especially dangerous, since it is New Years Eve and many people will be out partying. You will be fine as long as you dress warmly!

     Temperatures should rise enough, and winds should abate enough to allow the Wind Chill Advisory to expire at noon on Thursday, although winds chills will still be very cold, in the 10 below to 5 above range. Once again make sure to dress warmly in layers, and wear a heavy duty winter coat, along with a good pair of gloves, and a hat. If you do not do this and are outside, frostbite can occur in about 30 minutes, and hypothermia can set in with much less time. A Wind Chill Advisory is issued for wind chills in the 15 below to 30 below zero range. Stay tuned.


DISCUSSION
     Looks like it is going to be a Snowy start to New Years eve, and not to mention bitterly cold right through the New Year. But as long as you drive carefully, and bundle up more so then usual when its cold, then you should be able to have a joyful, and very fun night tomorrow night.
     A low pressure system moving rapidly east will push off the coast of Long Island by tomorrow night. This is going to bring some accumulating snow for some, and just plain cold for everyone. Snow accumulations across Southern Vermont, and up into the Western Slopes of Addison County will be in the 3-6 inch range. The rest of the area should see 1-3 inches with a trace to 1 inch along the border counties of Vermont, and Northern New York. Winds will be rather breezy on the backside of this system, but not strong enough to warrant a Wind Advisory. Winds though will be strong enough combined with very cold temperatures to produce dangerously cold wind chills, so I have issued a Wind Chill Advisory. Wind chills should be in the 15 below to 30 below zero range. I have stressed this several times not just only in the advisory. MAKE SURE YOU DRESS WARM! If you do not dress warm you are going to be putting your self at risk. It takes around 30 minutes for frostbite to form in these very cold wind chills, and hypothermia take much less time. If your going to be out watching the ball drop, its fine, just make sure you dress warmly, and make sure you move around some to keep your blood pumping strong, so you will stay warm. One last time DRESS WARMLY! As long as you dress warm, and drive carefully on any snow covered roads, you should have a very good New Years. So just be careful!

I hope everyone has a very safe but fun packed New Years!!!! If I am unable to get a post out before the ball drops, then I will see ya next year!!! Enjoy everyone!


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Snowy Week Ahead!

Local Update...
   A Couple Clipper Systems, And Maybe A Coastal Storm To Bring Snow To The Region This Week...

     Currently snow is falling across much of Vermont, and Northern New York. This is one of the first clipper systems that will effect the region. It should bring a widespread 1-3 inch snowfall by mid morning, western slope areas could see isolated higher amounts. Some areas may experience some brief moderate to heavy snow, as did Swanton, and Highgate Vermont where visibilities went down to around a quarter to half mile, and an inch of snow fell within an hour. Isolated snow showers/ flurries will occur for much of the day before the next system arrives. Additional accumulation with the light snow showers and flurries during the day should be no more than a dusting to perhaps one inch, in some upslope areas.
     Second system moves in Tuesday Night (Tonight). This system will be another clipper system, fast moving, but might pack a slightly stronger punch, and when I say slightly, I seriously mean slightly. This clipper will have the potential to produce 2-4 inches of snow across the region with locally higher amounts across western slope areas, and across Southern Vermont. Locally lower amounts could be witnessed along the international border where less precipitation is expected to fall.
     Thirdly, a potential coastal storm for Friday into Saturday. I will have to say though this is not looking as promising as it did 24 hours ago. The ECMWF model has showed less phasing between a northern stream and southern stream system until well out over the ocean, resulting in much less snow for us. The GFS last couple model runs have came on board with the ECMWF's idea. This is still some time out, so things could still change. That's why I will continue to mention that the potential exists for a coastal storm. But I do want to urge, its not looking as promising as it was 24 hours ago.
     Thats about all there is too mention for now. There may be the need for a Winter Weather Advisory for portions of Southern Vermont tomorrow night, depending on future data of the second clipper system. So keep an eye out for that. The National Weather Service in Albany, NY has issued a Wind Advisory for Bennington, and Windham Counties until 1PM this afternoon for some strong gusty winds. I don't feel that Wind Advisory criteria is going to be widespread enough to warrant a Wind Advisory, but this as well will be monitored. Updated maps are below, and make sure to stay tuned for any further updates!


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Sunday, December 28, 2008

All Alerts Continue

Local Update...
   Windy Afternoon To Continue; JRWeather High Wind Warning In Effect Until 12AM Monday; JRWeather Wind Advisory In Effect Until 12AM Monday; JRWeather Flood Watch In Effect Until 12AM Monday...


JRWeather HIGH WIND WARNING
     JRWeather has issued a High Wind Warning For St. Lawrence, Franklin, Western Clinton, and Western Essex Counties in New York Until 12AM Monday.

     A low pressure system, and its associated cold front, moving east towards our region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will cause strong to damaging winds across Northern New York. Current observations indicate sustained winds will continue to range from 25-40MPH with gusts up to 65MPH. At 2PM Massena, NY reported a wind gust of 63MPH. Winds of this magnitude are strong enough to cause trees and large limbs to fall resulting in the potential for power outages, and of additional concern, since its the holiday season, holiday decorations that have not yet been taken down stand the threat of being damaged, and blown around. If you have not yet secured this objects, do not do it now. Damaging winds are occurring, and you could risk getting injured. In damaging wind events like this it is recommended to stay inside.

     Strong and damaging winds should diminish by midnight, thus ending the high wind threat. A High Wind Warning is issued when sustained winds of 40MPH or greater and/or gusts to 55MPH or greater are imminent or occurring. Stay tuned for further updates.


JRWeather WIND ADVISORY
     JRWeather Continues A Wind Advisory For All Of Vermont and Eastern Essex, and Eastern Clinton Counties In Northern New York Until 12AM Monday.

     A low pressure system, and its strong cold front heading east towards our region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will once again result in strong winds across the entire region. Winds will range from 15-30MPH with gusts up to 50MPH. Winds of this magnitude are strong enough to cause minor power outages, and of additional concern, since its the holiday season, holiday decorations that have not been taken down yet stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any. This wind event will be similar to the one we had a couple days ago.

     Strong winds should diminish by midnight. A Wind Advisory is issued when sustained winds of 30-39MPH or gusts to 54MPH are expected. Stay tuned for further updates.


JRWeather FLOOD WATCH
     JRWeather Continues The Flood Watch for all of Northern New York, and All of Vermont except Grand Isle County, Until 12AM Monday.

     A Low pressure system, and its associated cold front moving east towards out region, combined with a high pressure system over the Atlantic, will bring some strong southerly winds across the entire region. These winds have brought in Warmer temperatures throughout the region, Today's temperatures have been in the low to mid 50'sF for Valley Locations, with some Isolated 60F readings across Southern Vermont, and Northern New York. East of the Green Mountains temperatures have been in the mid 40'sF to low 50'sF. These near record temperatures for this time of season combined with strong winds, and rainfall amounts of a quarter to isolated amounts near three quarters of an inch, will result in rapid rises on area rivers. Temperatures have been cold enough for significant river ice to form in the past weeks, so the threat for ice jam flooding exists, as river levels rise.

     Temperatures should rapidly fall later today resulting in less runoff thus the potential threat for flooding will come to an end by around 12AM Monday. A Flood watch is issued when there is the potential for flooding to occur, but not imminent. Stay tuned for further updates.


DISCUSSION
     Its defiantly been a Windy day. Not so much in Vermont, but in Northern New York wind gusts have reached 63MPH across Massena. Temperatures at Massena, have also dropped from 62F at 11AM to now 41F. These strong winds will continue across much of Northern New York. In the Champlain Valley, and the rest of Vermont winds wont be quite as strong, more along the lines of 15-25MPH with gusts up to 50MPH, although the Western slopes of the green mountains, and exposed southwest facing slopes will experience isolated wind gusts in excess of 50MPH. Most rivers are being good at this point, although a couple gage readings across the area, have brought some worries. The Great Chazy river at Perry Mill, in Clinton County, NY has been rising, and some jumpy gage readings have been noted. This may be indicative of a potential ice jam. Right now the river is reading at 7.53 feet, which is only .47 feet below bankfull. One other area of concern is the Mississquoi River in Berkshire. The River gauge there is showing steady rising, and the gage is indicating near bankfull with only .41 feet below bankfull. With these rapid rises, conditions are being monitored for ice to break up and jam. If this occurs rapid rises and flood will occur, behind these jams. If you live in area prone to ice jam flooding, pay attention to water levels. At any sign of an ice jam, evacuate and move to higher ground.

     Besides the short term, we may be looking at the potential for a few snow storms, the first two will be rather small, but the 3rd storm for the Friday/ Saturday time frame look like it could be much more significant. But its still quite a ways out, so this will continue to be monitored. Stay tuned for further updates!

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Saturday, December 27, 2008

High Wind Warning, Wind Advisory, & Flood Watch

Local Update...
   Strong Winds, And Rain For The Rest Of The Weekend; JRWeather High Wind Warning In Effect From 8AM Sunday To 12PM Monday; JRWeather Wind Advisory in Effect From 8AM Sunday To 12PM Monday; JRWeather Flood Watch In Effect Until 12AM Monday...


JRWeather HIGH WIND WARNING
     JRWeather has issued a High Wind Warning For St. Lawrence, Franklin, Western Clinton, and Western Essex Counties in New York From 8AM Sunday To 12PM Monday.

     Another low pressure system and its associated strong cold front over the Midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will cause the potential for damaging winds across portions of Northern New York once again. Current indications are that sustained winds will range from 25-40MPH with gusts in excess of 55MPH. Winds of this magnitude are strong enough to cause small/ weak trees and large limbs to fall resulting in the potential for power outages, and of additional concern, since its the holiday season, holiday decorations that have not yet been taken down stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any. The strongest winds will likely occur as the cold front sweeps across the region Sunday evening, through the overnight hours. This wind event will be similar to the one that occurred a couple days ago.

     Winds should diminish through Monday morning, thus ending the high wind threat by noontime. A High Wind Warning is issued when sustained winds of 40MPH or greater and/or gusts to 55MPH or greater are imminent or occurring. Stay tuned for further updates.


JRWeather WIND ADVISORY
     JRWeather has issued a Wind Advisory For All Of Vermont and Eastern Essex, and Eastern Clinton Counties In Northern New York From 8AM Sunday To 12PM Monday.

     A low pressure system, and its strong cold front over the Midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will once again result in strong winds across the entire region. Winds will range from 15-30MPH with gusts in excess of 45MPH. Winds of this magnitude are strong enough to cause minor power outages, and of additional concern, since its the holiday season, holiday decorations that have not been taken down yet stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any. This wind event will be similar to the one we had a couple days ago.

     Winds should diminish throughout morning on Monday thus ending the high wind threat by noontime. A Wind Advisory is issued when sustained winds of 30-39MPH or gusts to 54MPH are expected. Stay tuned for further updates.


JRWeather FLOOD WATCH
     JRWeather Continues The Flood Watch for all of Northern New York, and All of Vermont except Grand Isle County, Until 12AM Monday.

     A Low pressure system over the Midwest region will bring some strong southerly winds across the entire region. These winds have brought in Warmer temperatures throughout the region, low to mid 40'sF are being reported area wide, with a few locations reporting around 50F degrees. On Sunday even warmer temperatures are expected with upper 50'sF to near 60F in a few locations in the Valley regions, and Low to mid 50'sF across the higher elevations on Sunday. These near record temperatures for this time of season combined with strong winds, and rainfall amounts of a quarter to isolated amounts near three quarters of an inch, will result in rapid rises on area rivers. Temperatures have been cold enough for significant river ice to form, so the threat for ice jam flood exists, as river levels rise.

     Temperatures should rapidly fall later Sunday resulting in less runoff thus the potential threat for flooding will come to an end by around 12AM Monday. A Flood watch is issued when there is the potential for flooding to occur, but not imminent. Stay tuned for further updates.


DISCUSSION
     Well everything seems to be on track. Have updated the High Wind Watch to a Warning for much of Northern New York, and have put everyone else in a Wind Advisory. Winds will defiantly be gusty throughout Sunday. As the very strong cold front moves through, I would not be surprised to see many areas across the entire region having a brief gust up to 55MPH or so. These strong winds combined with warm temperatures will help melt snow very rapidly, and result in some significant runoff. One thing though is it does appear temps may be a bit cooler then first thought, however with the strong winds blowing, the snow should still melt significantly. Valley locations will lose almost all of their snow by Sunday night. The biggest flood threat is for ice jams, as rivers should be able to take most of the runoff. Any ice jams that form will result in flooding though, and the threat for ice jams does appear high into Sunday night. That's about all I have for now, so stay tuned for any further updates!


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High Wind Watch, Flood Watch, & Freezing Rain Advisory

Local Update...
   JRWeather Freezing Rain Advisory In Effect Until 11AM This Morning; JRWeather Flood Watch In Effect From 12PM Today Until 12AM Monday; JRWeather High Wind Watch In Effect From 8AM Sunday Morning Until 8AM Monday Morning...


JRWeather FREEZING RAIN ADVISORY
     JRWeather has a Freezing Rain Advisory for Northern St. Lawrence, and Northern Franklin Counties in New York, and Orleans, Essex, Caledonia, Lamoille, Washington, Orange, and Windsor Counties in Vermont until 11AM this morning.

     A low pressure system over the Midwestern states will continue to move north, bringing significantly warmer air into the region. This warm air will ride over the top of the cold dense air trapped over some of the sheltered valley's in Northern New York, and Eastern Vermont. Of most concern is the St. Lawrence Valley in Northern New York, and the sheltered Valley's in the Northeast Kingdom of Vermont. Ice accumulation in the Advisory area will range from a tenth to a quarter of an inch. This will lead to icy roads, and hazardous travel. Areas that receive a quarter inch of ice, combined with winds in the 10-20MPH range with gusts to 35MPH will have the potential for small tree limbs to come down. This wont be anything widespread.

     A Freezing Advisory is issued when icing of a tenth to just under a half an inch is likely to occur. Roads will become slick but not enough to make travel impossible. Drive cautiously, and defensively, and leave extra time to reach your destination.


JRWeather FLOOD WATCH
     JRWeather has issued a Flood Watch for all of Northern New York, and All of Vermont except Grand Isle County, From 12PM Today to 12AM Monday.

     A Low pressure system over the Midwest region will bring some strong southerly winds across the entire region. These strong winds will bring in much warmer temperatures today with mid to upper 40's in valley locations, and low to mid 40's in the higher elevations. On Sunday even warmer temperatures with upper 50's to near 60 are expected in the Valley regions, and mid to upper 50's across the higher elevations on Sunday. These near record temperatures for this time of season combined with strong winds, and rainfall amounts of a quarter to isolated amounts near three quarters of an inch, will result in rapid rises on area rivers. Temperatures have been cold enough for significant river ice to form, so the threat for ice jam flood exists, as river levels rise.

     Temperatures should rapidly fall later Sunday resulting in less runoff thus the potential threat for flooding will come to an end by around 12AM Monday. A Flood watch is issued when there is the potential for flooding to occur, but not immanent. Stay tuned for further updates.


JRWeather HIGH WIND WATCH
     JRWeather has issued a High Wind Watch For St. Lawrence, Franklin, Western Clinton, and Western Essex Counties in New York From 8AM Sunday To 8AM Monday.

     Another low pressure system and its associated strong cold front over the Midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will cause the potential for damaging winds across portions of Northern New York once again. Current indications are that sustained winds will range from 25-35MPH with gusts in excess of 55MPH. Winds of this magnitude are strong enough to cause small/ weak trees and large limbs to fall resulting in the potential for power outages, and of additional concern, since its the holiday season, holiday decorations that have not yet been taken down stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any. The strongest winds will likely occur as the cold front sweeps across the region Sunday evening, through the overnight hours.

     Winds should diminish rapidly Monday morning, thus ending the high wind threat. A High Wind Watch is issued when the potential for sustained winds of 40MPH or greater and/or gusts to 55MPH or greater are expected, but not immanent. Stay tuned for further updates.


DISCUSSION
     I am hoping I can keep the discussion short. We will see! It looks like it will be a busy weekend as far as weather goes, a little bit of everything to throw in the mix, Strong Winds, Snow, Sleet, Freezing Rain, Plain Rain, Thunderstorms, and Maybe Some flooding. Where to start?
     First things first, a low pressure system over the Midwest region with a powerful cold front will work its way east. This will bring warmer air over the region resulting in rain. This rain that falls will freeze on contact in the Northern St. Lawrence Valley in New York, and the Sheltered Valley's in eastern Vermont. But once the winds have been blowing strong enough for much of today it will eventual push out those cold surface temperatures. Elsewhere rain showers, and wind will be the rule for the day, as well as rising temperatures. By this afternoon, things will have to be watched as warmer temperatures and rain will help melt snow, by Sunday rapid snow melt, and runoff may occur, resulting in rapid rises on all area rivers, and this could cause some ice jam problems. Winds will be rather gusty throughout today, but by tomorrow winds will be potential damaging across northern New York, and very strong across the entire Champlain Valley, and entire state of Vermont. Right now a High Wind Watch has been issued for portions of Northern New York, but I can almost guarantee a Wind Advisory will be needed for everyone, except in Northern New York where a High Wind Warning may be needed.
     To break it down fast and easy, watch for showers today across the entire region, with areas of Freezing Rain in the Northern St. Lawrence Valley, and in Eastern Vermont. Winds across the entire region will be a bit moderate to strong with sustained winds of 10-20MPH with gusts to 35MPH. Temperatures will warm throughout the day, and by tomorrow morning watch for winds to increase substantially. Across Northern New York winds will increase to 25-35MPH with gusts in excess off 55MPH across the Entire Champlain Valley, and rest of Vermont winds will be in the 15-30MPH range with gusts of 45-50MPH. Temperatures will be much warmer then Saturday, and with these strong winds and showers, look for rapid snow melt, and runoff. With this you will need to pay close attention to any area water ways you live near. At any sign of flooding evacuate immediately. I am headed to bed now. Stay tuned for further updates!

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Wednesday, December 24, 2008

High Wind Warning & Wind Advisory

Local Update...
   JRWeather High Wind Warning & Wind Advisory In Effect Until 12PM Thursday...

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JRWeather HIGH WIND WARNING
     JRWeather has issued a High Wind Warning For Grand Isle, Franklin, Chittenden, Lamoille, Washington, Addison, Rutland, and Bennington Counties in Vermont and all of Northern New York Until 12PM Thursday.

     A strengthening low pressure system over the Midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will result in strong winds across the entire region. Winds will range from 25-35MPH with gusts in excess of 55MPH. Winds of this magnitude are strong enough to cause small/ weak trees and large limbs to fall resulting in the potential for power outages, and of additional concern, since its the holiday season, holiday decorations stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any.

     Winds should diminish throughout the afternoon on Thursday thus ending the high wind threat. A High Wind Warning is issued when sustained winds of 40MPH or greater and/or gusts to 55MPH or greater are expected. Stay tuned for further updates.

JRWeather WIND ADVISORY
     JRWeather has issued a Wind Advisory For Orleans, Essex, Caledonia, Orange, Windsor, and Windham Counties In Vermont Until 12PM Thursday.

     A strengthening low pressure system over the Midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will result in strong winds across the entire region. Winds will range from 15-30MPH with gusts in excess of 45MPH. Winds of this magnitude are strong enough to cause minor power outages, and of additional concern, since its the holiday season, holiday decorations stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any.

     Winds should diminish throughout the afternoon on Thursday thus ending the high wind threat. A Wind Advisory is issued when sustained winds of 30-39MPH or gusts to 54MPH are expected. Stay tuned for further updates.

Winter Weather Advisory & Wind Advisory

Local Update...
   JRWeather Winter Weather Advisory In Effect From Until 10PM Tonight; JRWeather Wind Advisory In Effect Until 12PM Thursday...

JRWeather WINTER WEATHER ADVISORY
     JRWeather has continues the Winter Weather Advisory for Orleans, Caledonia, Essex, Lamoille, Washington, Orange, Eastern Franklin, Easter Chittenden, and Eastern Addison Counties in Vermont, and St. Lawrence, Franklin, Western Clinton, and Western Essex Counties in New York.

     A low pressure system moving into the Great Lakes region through Chirstmas Eve, will bring some wintry precipitation to the area. Light snow should continue today and slowly change over to sleet, and then to freezing rain, and to plain rain in some spots by This Afternoon. By late tonight any remaining showery precipitation should change back to a sleet/snow mix and eventually all snow. No to very light additional accumulation is expected after 10PM Wednesday night. Total snow accumulations of 1-4 inches, and total ice accumulations of around a tenth to locally a quarter inch can be expected in the Advisory area. The most significant ice accumulations will occur across the sheltered valley's in Northeastern Vermont, and the St. Lawrence Valley in Northern New York.

     A Winter Weather Advisory is issued when significant but not severe winter weather is expected. In this case the winter weather advisory is for light snow, and ice accumulations. Holiday travel will be impacted by this storm, but not severely. Roads will become slick but not enough to make travel impossible. Drive cautiously, and deffensivly, and leave extra time to reach your destination.

JRWeather WIND ADVISORY
     JRWeather has issued a Wind Advisory For The Entire Region Until 12PM Thursday.

     A stengthening low pressure sytem over the midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will result in strong winds across the entire region. Winds will range from 15-30MPH with gusts in excess of 45MPH. Winds of this magnitude are strong enough to cause minor power outages, and of additional concern, since its the holiday season, holiday decorations stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any.

     Winds should diminish througout the afternoon on Thursday thus ending the high wind threat. A Wind Advisory is issued when sustained winds of 30-39MPH or gusts to 54MPH are expected. Stay tuned for further updates.


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Tuesday, December 23, 2008

Wintry Mix & Winds To Hamper Holiday Travel; Winter Weather Advisory & High Wind Watch In Effect

Local Update...
   JRWeather Winter Weather Advisory In Effect From 10PM Tonight To 10PM Wednesday; JRWeather High Wind Watch In Effect From 7AM Wednesday To 10AM Thursday...

JRWeather WINTER WEATHER ADVISORY
     JRWeather has continues the Winter Weather Advisory for Orleans, Caledonia, Essex, Lamoille, Washington, Orange, Eastern Franklin, Easter Chittenden, and Eastern Addison Counties
in Vermont, and St. Lawrence, Franklin, Western Clinton, and Western Essex Counties in New York.

     A low pressure system moving Northeast and into the Great Lakes region through Christmas Eve, will bring some wintry precipitation to the area. It should start as all snow for the entire region late tonight, and slowly change over to sleet, and then to freezing rain, and to plain rain in some spots by Wednesday Afternoon. By late Wednesday Night any remaining showery precipitation should change back to a sleet/snow mix and eventually all snow. No to very light additional accumulation is expected after 10PM Wednesday night. Total snow accumulations of 2-5 inches, and total ice accumulations of around a tenth to locally a quarter inch can be expected in the Advisory area. The most significant ice accumulations will occur across the sheltered valley's in Northeastern Vermont, and the St. Lawrence Valley in Northern New York.

     A Winter Weather Advisory is issued when significant but not severe winter weather is expected. In this case the winter weather advisory is for light to moderate snow, and ice accumulations. Holiday travel will be impacted by this storm, but not severely. Roads will become snow, and ice covered but not enough to make travel impossible. Drive cautiously, and defensively, and leave extra time to reach your destination.

JRWeather HIGH WIND WATCH
     JRWeather has issued a High Wind Watch for Bennington, Lamoille, Washington, Eastern Franlin, Eastern Chittenden, Eastern Addison, Eastern Rutland, and Western Windham Counties in Vermont From 7AM Wednesday to 10AM Thursday.

     A strengthening low pressure system over the Midwest region, combined with a high pressure system over the Atlantic will result in a tightening pressure gradient. This will result in the potential of strong to damaging winds for the Western Slopes of the Green Mountain from Northern Vermont, all the way to Southern Vermont. The potential exists for winds of 20-30MPH with gusts in excess of 55MPH. Winds of this magnitude are strong enough to cause small trees, and large limbs to break, resulting in the potential for power outages, of additional concern, since its the holiday season, holiday decorations stand the threat of being damaged, and blown around. It is recommended to secure loose objects, as well as holiday decorations so damage will be minimal if any.

     Winds should diminish by Thursday afternoon, ending the high wind threat. A High Wind Watch is issued when there is the potential for damaging sustained winds of 40MPH or greater, and/ or Wind gusts of 55MPH or greater. Stay tuned for further updates.

Discussion
     As you can see from above, Winter, and Wind Alerts have been issued for much of the region. Not mentioned above is the National Weather Service has issued a Winter Weather Advisory for the entire area.
     It looks like the entire region will see a wintry mix, but the most significant will be across Northern New York, and Northeastern Vermont. I have not included the Champlain Valley of Vermont in the Winter Weather Advisory due to the fact the southerly flow will help temperatures rise rapidly, and exclude any significant freezing rain. Although a couple inches of a snow/ sleet mixture is expected. This same situation applies for Southern Vermont as well. Of another concern is the potential for strong to damaging winds across the entire region. Damaging winds will most likely occur along the Western slopes of the Green mountains, from the Canadian border, south to the Massachusetts border, thus I have issued a High Wind Watch for potential gusts of 55MPH or higher into Thursday afternoon. The rest of the region though will likely see strong winds in the 15-30MPH range with occasional gusts in the 45-50MPH range. I will likely issue a Wind Advisory for the entire region later tonight or tomorrow morning, and possibly upgrade the Watch to a Warning, at the same time. Updated maps are below. Stay tuned!


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Wintry Mix To Impact Holiday Travel; Winter Weather Advisory

Local Update...
   JRWeather Winter Weather Advisory In Effect From 12AM Wednesday To 12AM Thursday...

JRWeather WINTER WEATHER ADVISORY
     JRWeather has issued a Winter Weather Advisory for Orleans, Caledonia, Essex, Lamoille, Washington, Orange, Eastern Franklin, Easter Chittenden, and Eastern Addison Counties in Vermont, and St. Lawrence, Franklin, Western Clinton, and Western Essex Counties in New York.

     A low pressure system over Colorado will continue to move Northeast and into the Great Lakes region through Christmas Eve. This will bring some wintry precipitation to the area. It should start as all snow for the entire region early Wednesday morning, and slowly change over to sleet, and then to freezing rain, and to plain rain in some spots. By Christmas day, the sleet/ freezing rain may change to all rain across much of the region. Total snow accumulations of 2-5 inches, and total ice accumulations of around a tenth to locally a quarter inch can be expected in the Advisory area. The most significant ice accumulations will occur across the sheltered valley's in Northeastern Vermont, and the St. Lawrence Valley in Northern New York.

     A Winter Weather Advisory is issued when significant but not severe winter weather is expected. In this case the winter weather advisory is for light to moderate snow, and ice accumulations. Holiday travel will be impacted by this storm, but not severely. Roads will become snow, and ice covered but not enough to make travel impossible. Drive cautiously, and defensively, and leave extra time to reach your destination.

Discussion
     The discussion will be fairly short, the Winter Weather Advisory has details pretty much covered. Low pressure will move from Colorado Northeast, and through the Eastern Great Lakes region for Christmas Eve/ Christmas Day. This will put us in the warm sector of the storm (Back to the old weather pattern) resulting in a wintry mix, changing to plain rain in the Champlain Valley. The only place of most significant concern once again with this type of set up, is the freezing rain potential, especially in the Northern St. Lawrence Valley, where cold air is going to hang on tight, despite strong southerly winds across much of the region. The heaviest of the snow accumulations will be in Northeastern Vermont, and Northern New York. Across the Champlain Valley we will likely see all 3 types of wintry precipitation (Snow, Sleet, Freezing Rain) before changing over to plain rain, however it will not be significant enough to warrant any alerts at this time. For the Champlain Valley though one thing that will need to be monitored, is when that Southerly wind kicks in, it will funnel through the valley, and could produce some very strong winds, resulting in a Wind Advisory, or even a High Wind Watch, or High Wind Warning. Winds should be strong enough across the entire area to warrant at minimum a Wind Advisory. This wont be issued right now though, I am going to wait for a bit more details before issuing any Wind Alerts. Eitherway holiday travel is going to be impacted, but as long as you drive carefully, and leave plenty of extra time to reach your destination you should be just fine. Alert, and accumulations maps below... Stay tuned for further updates!






Snowfall Totals For The 12/21-12/22/08 Nor'easter

     Below is a map that I have put together based on storm totals from the 12/21-12/22/08 Nor'easter. The reports used to put the map together were reports from spotters, and other sources via the National Weather Service in Burlington. Bennington, and Windham County do not have sufficient data to produce snow totals in that area, although they likely exceeded 8 inches. Once reports via the National Weather Service in Albany are available, I will be able to fill those counties in with snowfall amounts. Eitherway it was a significant snow storm, with 4-8 inches across the Northern Champlain Valley, and much of Northern New York, with 8-12 inches across the Western Slopes of the green mountains, the rest of the Champlain Valley, and Western Rutland County. East of the spine of the Green Mountains and much of Northeastern Vermont over a foot of snow fell. This can all be seen on the map below.

Note: Some Lake enhanced snow off lake Ontario helped aid in a small swath of 8-12 inches across Southern Portions of St. Lawrence County into Western Essex County New York.

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Monday, December 22, 2008

Updated Winter Storm Warning & Discussion

Local Update...
   JRWeather Winter Storm Warning In Effect Until 11AM Monday; National Weather Service Winter Storm Warning In Effect Until 1PM Monday...

JRWeather WINTER STORM WARNING
     JRWeather Continues a Winter Storm Warning For Orleans, Essex, Lamoille, Caledonia, Washington, Orange, Windsor, Windham, Eastern Franklin, Eastern Chittenden, Eastern Addison, and Eastern Rutland Counties Until 11AM. The Winter Storm Warning Has Been Cancelled For Western Franklin, Western Chittenden, Western Addison, Western Rutland, and Bennington Counties in Vermont, and all of Northern New York.

     A low pressure system that is explosively intensifying, will continue to rapidly move Northeast, and into the Canadian Maritimes by Monday morning. Light to occasionally moderate snow will continue across the Western Slopes of the Green Mountains, and across Eastern Vermont. Across the Warning area an additional 2-4 inches of snow can be expected by late Monday morning, before the snow tappers off to very light snow showers/ flurries. Total snow accumulations in the Warning area, will range from 8-12 inches across the Western slopes of the Green Mountain to 12-18 inches with locally higher amounts across much of Eastern Vermont. Elsewhere additional accumulations will be 1 to 2 inches locally bringing totals in the 4-8 inch range with locally higher amounts. Winds will also be increasing into the 10-20MPH range with gusts to 35MPH, especially across the higher terrain where isolated gusts to 40MPH could occur. These winds will cause significant blowing and drifting snow, helping to reduce visibilities and cause further travel problems.

     Snow will have just about ended by Monday mid-morning, Thus the Warning will end at 11AM when additional snow will be minimal if any at all. A Winter Storm Warning means severe Winter Storm conditions are expected, in this case, significant heavy snow, and blowing snow, is highly expected or occurring. Stay tuned for further updates.

Discussion
     A rapidly intensifying, and rapidly moving system is tapering off across the region. Light snow and flurries are all that's left across Western Vermont, and Northern New York. Across the Eastern two thirds of Vermont light to occasionally moderate snow continues, but will be tapering off by Monday mid-morning. Snowfall totals have been impressive across portions of Eastern Vermont with a wide spread 10-15 inches, with locally higher amounts. A few snow totals from Eastern Vermont are, Randolph Center reporting 17.5 inches, Chelsea 16.0 inches, Danby 15.0 inches, Montpelier 13.0 inches, and Springfield with 11.1 inches. Across Western Vermont and Northern New York snowfall totals have been in the 5-8 inch range. A few snow totals from New York are, Beekmantown with 8.0 inches, Plattsburgh 8.0 inches, Potsdam 5.5 inches, Saranac Lake 5.0 inches. Across Western Vermont a few snow totals are Burlington with 9.1 inches, Pawlet 8.0 inches, Essex Center 7.0 inches, St. Albans 7.0 inches, Swanton 5.8 inches, and Westford with 4.9 inches.

    The biggest remaining concern overnight into Monday morning will be the potential for blowing, and drifting snow, especially in the higher terrain, and western slope areas. As winds will be 10-20MPH with gusts to 35MPH. Already in Plattsburgh, NY winds are being reported at 14MPH with gusts to 21MPH, and in Rutland, VT winds are at 18MPH with gusts to 31MPH. These winds combined with temperatures in the 8F - 15F range will result in some very cold wind chills. At this time though, I don't feel a Wind Chill Advisory will be needed. Eitherway bundle up, and use extreme caution if out on the roads tonight and tomorrow. Stay tuned!

Another storm does look to effect us for Christmas Eve into Christmas, there will be more on this storm later today.


CLICK ON IMAGES TO ENLARGE!




Sunday, December 21, 2008

UPDATE: Nor'easter

Local Update...
   Nor'easter Bringing Less Snow Then Expected For Our Area...

     The National Weather Service in Burlington, Vermont continues a Winter Storm Warning for the entire region for 4-9 inches of snow for the St. Lawrence Valley, and Northern Adirondack mountains in Norther New York, 6-12 inches of snow for South Central Vermont, and the Champlain Valley, and 8-14 inches of snow across Central, and Northeastern Vermont. The National Weather Service in Albany, New York continues a Winter Storm Warning for Bennington, and Windham Counties in Vermont for an additional 3-6 inches of snow resulting in a total of 6-12 inches. JRWeather continues a Winter Storm Warning for the entire region for 4-8 inches of snow for much of Northern New York, and the Western third of Vermont, and 8-12 inches of snow for portions of the Adirondack mountains, and the eastern two thirds of Vermont.

VIEW PREVIOUS POST FOR WINTER ALERT UPDATE!

     Low pressure currently moving towards Cape Cod is rapidly intensifying, it is currently down to 992mb and continue to explosively strengthen, until it reaches about 965mb. This will result in a Blizzard for portions of Northern and Eastern Maine, where Blizzard Warnings have been issued for 10-20 inches of snow, and white out conditions. For our area, light to moderate snow will continues with moderate to occasionally heavy snow for eastern Vermont. Additional snow totals will be 1-4 inches across Northern New York, and Western Vermont, and an additional 3-6 inches for the Western Slopes of the Green Mountains and East. Warning criteria may not be met in several places, especially across the Northern Champlain Valley, and in the St. Lawrence Valley, as snow totals have only averaged 1-3 inches, due to unfortunate shadowing from the mountains. But I will continue the Warning for the entire area, due to the fact winds should increase and cause blowing and drifting snow, along with very difficult travel conditions into tomorrow morning. I guess that's all I have to say... Stay tuned.


CLICK ON IMAGE TO ENLARGE!!

Winter Storm Warning Continues

Local Update...
   JRWeather Winter Storm Warning In Effect Until 11AM Monday; National Weather Service Winter Storm Warning In Effect Until 1PM Monday...


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JRWeather WINTER STORM WARNING
     JRWeather Continues a Winter Storm Warning For All Of Vermont, and All Of Northern New York Until 11AM Monday.

     Low pressure currently moving towards Cape Cod is rapidly intensifying, this will result in continued light to moderate snow for Northern New York, and The Champlain Valley, and Moderate to Heavy Snow for the Western Slopes of the Green Mountains, and all of Eastern Vermont. Snow will continue overnight before tapering off by Monday morning. Total snow accumulations will range from 4-8 inches across much of the area, with 8-12 inches across the spine of the green mountains, Northeastern Vermont and the Northern Adirondack mountains, in Northern New York. Also as this storm rapidly intensifies it will bring winds in the 10-20MPH range with strong gusts up to 35MPH. These winds will aid in blowing and drifting snow, helping to reduce visibilities and cause further travel problems.

     Snow will taper off by Monday morning, Thus the Warning will end at 11AM when additional snow will be minimal if any at all. Upslope regions though will likely see continued light snow accumulations throughout the day Monday. A Winter Storm Warning means severe Winter Storm conditions are expected, in this case, significant heavy snow, and blowing snow, is highly expected or occurring. Stay tuned for further updates.

UPDATE: Nor'easter

Local Update...
   Nor'easter To Bring Continued Heavy Snow, And Travel Problems Into Monday Morning...

VIEW PREVIOUS POST FOR WINTER ALERT DETAILS!

     The National Weather Service in Burlington, Vermont continues a Winter Storm Warning until 1PM for the entire region, for 6-12 inches of snow across much of the area with 10-15 inches across the Western Slopes of the Green Mountains, and Northeastern Vermont. The National Weather Service in Albany, New York continues a Winter Storm Warning until 7AM for Bennington, and Windham Counties in Vermont for 6-16 inches of snow. JRWeather continues a Winter Storm Warning until 11AM for the entire region for 5-10 inches of snow across much of the area, with 10-15 inches across portions of the Northern Adirondack mountains in New York, and the Western Slopes of the Green Mountains in Vermont, as well as Northeastern Vermont.

     Currently across the region moderate to heavy snow is falling. Current radar trends show precip is beginning to lighten up in some areas. The low pressure that is forecasted to form over the Delmarva area is now forming, currently its just east of the Southern New Jersey coast. It is expected to rapidly strengthen and continue to move northeast, over Cape Cod and then up into eastern Maine by Monday Morning. The low pressure system is expected to explode. Strengthening from its current 1000mb low to as low as 964mb in about 24 hours. This is extremely impressive intensification. If the low were to have intensified this rapidly in its current location, and tracked across Long Island, and west of Cape Cod, then we very well could of had one heck of a Blizzard, but unfortunately/ fortunately (Whichever your take on snow is) that will not occur. Either way we will still be seeing some significant snow, and strong winds to produce near Blizzard conditions at times. I have had to lower snowfall amounts for much of the area, due to a delayed start, and what appears to be a faster ending. Stay tuned for further updates.


CLICK ON IMAGE TO ENLARGE!

Winter Storm Warning Continues

Local Update...
   JRWeather Winter Storm Warning In Effect Until 11AM Monday; National Weather Service Winter Storm Warning In Effect Until 1PM Monday...


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JRWeather WINTER STORM WARNING
     JRWeather Continues a Winter Storm Warning For All Of Vermont, and All Of Northern New York Until 11AM Monday.

     Low pressure currently over the Great Lakes region, and a developing low pressure system near the Delmarva peninsula, will result in continued moderate to heavy snow. Snow will continue to be moderate to heavy at times before tapering off by Monday morning. Total snow accumulations will range from 5-10 inches across much of the area, with 10-15 inches across the spine of the green mountains, and the Northern Adirondack mountains. Also as this storm rapidly intensifies it will bring winds in the 10-20MPH range with strong gusts up to 35MPH. These winds will aid in blowing and drifting snow, helping to reduce visibilities and cause further travel problems.

     Snow will taper off by Monday morning, Thus the Warning will end at 11AM when additional snow will be minimal if any at all. Upslope regions though will likely see continued light snow accumulations throughout the day Monday. A Winter Storm Warning means severe Winter Storm conditions are expected, in this case, significant heavy snow, and blowing snow, is highly expected or occurring. Stay tuned for further updates.

UPDATE: Nor'easter?

Local Update...
   Significant Snowstorm Still Expected To Strike The Region Later This Morning Into Monday...

     This will be a very quick update. Things appear to be on track for a storm. At this time though, I am increasingly worried that snow totals may have to be adjusted downward. At this point I will hold off on any changes until after the storm begins. The onset timing appears that it will be delayed. The infrared satellite, and water vapor image appears to me, that the jet streams are not quite phasing together as well as expected, and I have some question as to what is exactly going to happen with the redeveloping low pressure system off the coast. I am also increasingly worried that the low pressure system moving towards the great lakes region will be the dominant low, with only a weak low forming off the coast, and not turning into much (Similar to the way things have been going on this year, and last.) Eitherway this will be watched closely, and maybe I will be extremely wrong. Which in all honesty I hope I am. I want a good storm! Right now though I am not going to make any changes, but stay tuned.

Saturday, December 20, 2008

Significant Nor'easter To Impact The Region Sunday Into Monday

Local Update...
   Heavy Snow, Strong Winds, and Cold Wind Chills Will Lead To Near Blizzard Conditions Sunday Into Monday...

     The National Weather Service in Burlington, Vermont has issued a Winter Storm Warning for the entire region, for 6-12 inches of snow across much of the region, and 10-15 inches of snow across much of Northern, and Central Vermont, along with the threat of significant blowing and drifting snow. The National Weather Service in Albany, New York has issued a Winter Storm Warning for Bennington, and Windham Counties in Vermont for 8-16 inches, along with significant blowing and drifting snow. JRWeather has issued a Winter Storm Warning for the entire region for 6-12 inches of snow, across much of the region, and 12-16 inches of snow across the Western slopes of the Green Mountains, and North-Central, and Northeastern Vermont.

VIEW PREVIOUS POST FOR ALERT DETAILS!!

     A significant winter storm is expected to strike the region, starting Sunday morning. Currently a low pressure system over the Tennessee area, will continue to move Northeast, this low pressure system will redevelop off the coast of New Jersey and track Northeast, and over downeast Maine by Monday Morning. With strong cold air in place this will allow for significant snowfall for our region. Snow should begin for all areas by late Sunday morning, and become heavy at times through the evening. Snow will then be light to moderate into the mid morning hours on Monday. Winds will be increasing into the 10-20MPH range with gusts as high as 40MPH, especially over the Western Slopes of the green mountains, and across the higher terrain of North Central, and Northeastern Vermont. This will result in significant blowing and drifting snow, and very cold wind chills. Near Blizzard conditions will be likely. Total snow accumulations will range from 6-12 inches for most of the region, and 12-16 inches across the Western slopes of the Green Mountains, and North-Central, and Northeastern Vermont. Travel will become increasingly difficult, and very hazardous throughout the storm. Accumulation map below. Stay tuned for further updates!


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Winter Storm Warning

Local Update...
   JRWeather Winter Storm Warning In Effect From 6AM Sunday To 10AM Monday; National Weather Service Winter Storm Warning In Effect From 4AM Sunday To 1PM Monday...


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JRWeather WINTER STORM WARNING
     JRWeather has issued a Winter Storm Warning For All Of Vermont, and All Of Northern New York From 6AM Sunday To 10AM Monday.

     A low pressure system currently over Western Kansas will continue to move east-northeast become a double barrel low pressure system, the secondary low pressure system will track across the southern mid-Atlantic states, and re-develop off the coast of New Jersey, this low will then rapidly intensify as it heads up the coast, and into eastern Maine by early Monday morning. Snow will develop mid to late morning across much of the area, snow will become heavy at times before tapering off Monday morning. Total snow accumulations will range from 6-12 inches across much of the area. 12-16 inches are possible across the spine of the green mountains, and in Northeastern Vermont. Also as this storm rapidly intensifies it will bring strong winds in the 10-20MPH range with gusts up to 35MPH. These winds will aid in blowing and drifting snow, helping to reduce visibilities and cause further travel problems.

     Snow will taper off by Monday morning, Thus the Warning will end at 10AM when additional snow will be minimal if any at all. Upslope regions though, may need an extension of the warning, as strong northwesterly winds on the back side of the storm will cause some upslope enhancement. A Winter Storm Warning means severe Winter Storm conditions are expected, in this case, significant heavy snow, and blowing snow, is highly expected or occurring. Stay tuned for further updates.

Friday, December 19, 2008

Winter Storm Warnings, and Winter Weather Advisories Expand North

Local Update...
   JRWeather Winter Storm Warning In Effect Until 9AM Saturday; JRWeather Winter Weather Advisory In Effect Until 9AM Saturday; JRWeather Winter Storm Watch In Effect From 8AM Sunday To 8AM Monday


CLICK ON IMAGES TO ENLARGE!




UPDATED ALERTS BELOW DISCUSSION!

     A rather impressive storm system continues to effect the region, although its clear through radar imagery its beginning to wind down. Snow totals have been much higher then expected as some strong mesoscale banding has occurred across even northern portions of the area, resulting in widespread totals of 4-8 inches, across the international border of Vermont snow accumulations have been slightly less with a general 2-5 inches. Additional snow totals will range from 1-2 inches across the international border of Northern New York, and Vermont, and 1-3 inches across much of Northern New York, and Northern Vermont, with an additional 2-4 inches across Central and southern Vermont. This will lead to 6-12 inches total accumulation in the warning area, and 3-6 inches in the advisory area. This has unfortunately been a very "last minute" storm. It was such a rapidly moving and developing storm that it made it very difficult to forecast as far as the northern extent of the snow. As I mentioned though, this is extremely similar to the snow storm in February earlier this year, where the international border areas received significantly lighter amounts then area further south. Also the National Weather Service in Burlington has expanded the Winter Storm Warning to Cover Chittenden, Lamoille, and Caledonia Counties. The Advisory areas from the National Weather Service remain the same. You can see this on the above maps.

A detailed update on the Sunday/ Monday storm will be issued tomorrow. Currently though a Winter Storm Watch has been issued for this storm for the potential of 6-12 inches of snow. (The maps above don't depict the Watch over the counties only due to the current Advisory, and Warnings, however JRWeather has issued a Winter Storm Watch for the entire region.) There is rather strong confidence of a significant winter storm, that a Warning may be issued by tomorrow afternoon. If the NAM were to verify then we could see some very significant winter weather conditions. The most recent NAM model run indicates a rapid strengthening of 12 millibars in 6 hours, 992mb to 980mb, and further strengthening after that! Even with a lobe of calmer gradient winds across the region, if this type of strengthening were to occur, then we could see some rather impressive winds. I wont say much more, as I don't want to jinx myself. as stated a more detailed update on this storm will be issued tomorrow. Tonight's storm is most important right now.

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JRWeather WINTER STORM WARNING
     JRWeather continues a Winter Storm Warning For Bennington, Windham, Rutland, Windsor, and Eastern Addison County Until 9AM, And Has Expanded The Warning To Cover, Chittende, Lamoille, Caledonia, Orange, and Western Addison Counties in Vermont, And To Cover Essex, Southeastern St. Lawrence, Southwestern St. Lawrence, Southern Franklin, and Western Clinton Counties in New York.

     A low pressure system now moving rapidly to the east and off shore of the northern New Jersey Coast, has brought some unexpected snow totals. Thus the Winter Storm Warning has had to expand further north, with an advisory issued for the border counties of Vermont, and Northern New York. Light to moderate snow will continue across the region, with some occasionally heavy bursts of snow, especially across southern Vermont. Snow totals of 6-12 inches are possible in the Warning area by early Saturday Morning. Also of additional concern is winds 5-15 MPH with occasional gusts to 25MPH and temperatures in the 0 - 10F above has been creating wind chills in the 10 to 20 below zero range. Also with this being a very fluffy snow, not much wind is needed to blow it around, and blowing snow has been reported.

     Snow will rapidly taper off and should have pretty much come to an end by Saturday morning, Thus the Warning will end at 9AM when additional snow will be minimal if any at all. A Winter Storm Warning means severe Winter Storm conditions are expected, in this case, significant heavy snow, blowing snow, and very cold wind chills is expected/ occurring. Travel will continue to be strongly discouraged overnight.


JRWeather WINTER WEATHER ADVISORY
     JRWeather has issued a Winter Weather Advisory for Grand Isle, Franklin, Orleans, and Essex Counties in Vermont, and Northern St. Lawrence, Northern Franklin, and Western Clinton Counties in New York until 9AM Saturday morning.

     A low pressure system now moving rapidly to the east and off shore of the northern New Jersey Coast, has brought some unexpected snow totals. Thus a last minute winter weather advisory has been needed for the border counties of New York. Light to moderate snow will continue across the region, with some occasionally heavy bursts of snow, especially across southern Vermont. Snow totals of 3-6 inches are possible in the advisory area by early Saturday Morning. Also of additional concern is winds 5-15 MPH with occasional gusts to 25MPH and temperatures in the 0 - 10F above has been creating wind chills in the 10 to 20 below zero range. Also with this being a very fluffy snow, not much wind is needed to blow it around, and blowing snow has been reported.

     Snow will rapidly taper off and should have pretty much come to an end by Saturday morning, Thus the advisory will end at 9AM when additional snow will be minimal if any at all. A Winter Weather Advisory is issued when significant but not severe winter weather is expected. In this case the winter weather advisory is for moderate amounts of snow, along with blowing snow, and very cold wind chills. Travel will continue to be very hazardous, and if you can delay your travel plans please do so.


JRWeather WINTER STORM WATCH
     JRWeather has issued a Winter Storm Watch for all of Vermont, and Northern New York From 8AM Sunday to 8AM Monday.

     A double barrel low pressure system is forecasted to form across Western New York. The Low pressure system will transfer its energy to a single low off the coast of New Jersey. This low pressure system is expected to intensify significantly while it heads northeast into northeastern Maine, and eventually the Canadian Maritimes. Snow should develop mid Sunday morning, and progressively become heavier throughout the day. Total snow accumulations in excess of 6 inches appear likely across the Watch area, by the time the storm ends Monday morning.

     Snow should taper off and should have pretty much come to an end by Monday morning, however winds will likely already be rather gusty and will be causing some blowing and drifting snow. A Winter storm watch is issued when there is a strong potential for severe winter weather, but not imminent. Stay tuned for further updates.