Wednesday, January 26, 2011

UPDATE: Nor'easter Strengthening




Alerts:
CPV Weather
         -Champlain Valley Weather has issued a Winter Storm Warning for all of New Jersey for 6-12 inches of snow by Thursday morning. The Warning is in effect until 8AM Thursday.

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National Weather Service Alerts:
         -The National Weather Service in Mount Holly, NJ has issued a Winter Warning for much of, NJ for 6-9 inches of snow for Northwestern New Jersey, 8-12 for much of New Jersey, with 2-6 inches across extreme Southeastern New Jersey, and along the immediate coastline of Southeastern New Jersey.

         -The National Weather Service in Upton, NY has issued a Winter Storm Warning for Northeastern New Jersey for 7-11 inches of snow.

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Champlain Valley Weather Discussion:
OVERVIEW
         Strengthening low pressure off the mid-atlantic coast is resulting in area of rain, sleet, and snow. All snow is expected tonight with heavy accumulations.

SNOWFALL
         The track of the storm is not quite as far Northwest as I had initially thought, but its not as far Southeast as what the models were doing with it yesterday. Therefor overall precipitation amounts have gone up area wide, and also shifted now to cover southeast New Jersey. 6-12 inches of snow is likely area wide, with the lowest amounts acorss Southeastern New Jersey.

         I do want to urge Thundersnow is likely across much of New Jersey this evening into the overnight. Snowfall rates will be in the 1-2 inch range for the most part, but in thundersnow snowfall rates will be as high 4 inches per hour. Travel this evening into the early morning hours is strongly discouraged.

Tuesday, January 25, 2011

Yet ANOTHER Nor'easter To Impact New Jersey








Alerts:
CPV Weather
         -Champlain Valley Weather has issued a Winter Storm Warning for all of New Jersey for 6-10 inches of snow across Northern and Central New Jersey back into Southwestern New Jersey, and 3-6 inches of snow for much of Southeastern and Coastal New Jersey by Thursday morning. The Warning is in effect from 6AM Wednesday until 6AM Thursday.

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National Weather Service Alerts:
         -The National Weather Service in Mount Holly, NJ has issued a Winter Storm Watch for all but Cape May County, NJ for the potential of 3-8 inches across Southern and extreme Northwestern New Jersey, with 4-10 inches possible across portions of Central, and North Central New Jersey.

         -The National Weather Service in Upton, NY has issued a Winter Storm Watch for Northeastern New Jersey for the potential of 6 or more inches of snow.

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Champlain Valley Weather Discussion:
OVERVIEW
         A 1008mb low pressure system over the far Western Florida panhandle will continue to move Northeast, and strengthen off the mid-Atlantic coast, and track over or just slightly east of Cape Cod by Thursday. This will bring accumulations snow to much of New Jersey.

SNOWFALL
         This will be tricky, as most models agree on a track that I dont feel is right. Only few people including myself agree strongly against the models, and feel the track is too far east. This includes the great Chief long range forecaster Joe Bastardi from Accuweather, the leader of SnoBoy weather, David Claghorn, and myself Josh Ramsdell of Champlain Valley Weather. I am sure there are a few other forecasters out there that believe in the track that we agree on, but none that I know of off the top of my head. Those of us forecasting a stronger track are basing it off of more then just what the weather models show to us at face value. The fact that there is a big ridge off the west coast of the US, along with the status of the NAO argue for a further west track. Not to mention all storm systems this year have tracked further Northwest then modeled. I would expect weather models to finally start to correct substantially further west by the 0Z run of the models.

         With the further west track this means that Southern and Coastal New Jersey will start off or change to rain, the tricky part is once the storm system is far enough to the Northeast of you the backlash snows will move in and hit hard. Numerous models are indicating these tremendously heavy back lash snows to hit primarily the eastern half of New Jersey, which would indicate my 3-6 inch amounts on my snow map are wrong. But I feel with this storm system tracking further Northwest these backlash snows will push further Northwest and effect the Western half and Northern portions of New Jersey. So at this point I have places much of that area in a 6-10 inch range. Once I can determine where these strong backlash snows will set up, then some areas may have to be placed in a 10+ inch range. Especially across Northeastern New Jersey. I do want to urge though, if the model in fact do end up being correct, this would place nearly all of New Jersey in a 6-12 inch snowfall. Regardless of model support one thing is certain, a period of very heavy snow will occur later Wednesday with snowfall rates up to 3 inches per hour possible. So its us few vs. the weather models. Take your pick! Stay tuned for further updates on this developing winter storm.

Monday, January 10, 2011

Nor'easter To Hit New Jersey Tuesday Night to Wednesday Morning








    Alert Details:
         Champlain Valley Weather has issued a Winter Storm Warning for all of New Jersey for 6-10 inches of snow. The Winter Storm Warning is in effect from 1PM Tuesday Until 7AM Wednesday.

         The National Weather Service office in Upton NY, has issued a Winter Storm Warning for Northeastern New Jersey for 7-14 inches of snow. The Warning is in effect through Wednesday morning.

         The National Weather Service in Mt. Holly, NJ has issued a Winter Storm Warning for much of New Jersey for 5-9 inches of snow. The Warning is in effect through Wednesday morning.

         The National Weather Service in Mt. Holly has issued a Winter Storm Watch for extreme Northwest New Jersey, and Coastal New Jersey, from Coastal Ocean, south to Coastal Cape May County. The potential exists for snow totals in excess of 4 inches in the Watch area.


    New Jersey Weather Discussion:
         Two pieces of energy are expected to merge off the coast of the Delmarva Peninsula and rapidly strengthen into a significant Nor'easter as it moves Northeast towards Eastern Long Island. This will result in moderate to heavy snow accumulations.

         Currently there are two different scenarios that could unfold for this system, as weather models are not in full agreement. The first scenario would be the low pressure forming near the Delmarva and slowly intensifying pushing Northeast away from the coast, bringing moderate to heavy snow accumulations to the area. The second scenario is that the storm forms near the Delmarva and rapidly intensifies and moves more North-Northeast and causes mixing at the coast, and significant snowfall accumulations across the Western half of New Jersey. At this point I will split the track down the middle and go with moderate to heavy snowfall accumulations for the entire state. A widespread 6-10 inches of snow is likely across the region with the highest amounts across Northeastern New Jersey, and the lowest amounts across Southern New Jersey.

         This storm will be substantially weaker then the post Christmas day storm, so while some blowing and drifting of snow is possible, it wont be as extreme. Winds at there highest may gust near 35MPH, mainly along the coast. I will continue to monitor trends for the potential of mixing at the coast, which would hold down on snowfall amounts along the coast. Either way get ready for some snow and Stay tuned for further updates on this storm system.