Mar 3: Snow Storm Detected!

Jonathan Carr
By Jonathan Carr March 3, 2015 14:32

Mar 3: Snow Storm Detected!

Here is my snow map for Wednesday evening into Thursday. This includes only snow that falls after the changeover from rain to ice to snow tomorrow evening:

snow map

Only light snow is expected today (nothing serious) before changing to sleet/freezing rain and then ultimately rain this evening. Rain should then last through most of a warm tomorrow (on-and-off showers) before changing back to a brief period of ice and then ultimately accumulating snow. Moderate to heavy snow should then fall from tomorrow afternoon/evening well into Thursday.

A very weak low pressure disturbance will be riding an Arctic frontal boundary that will be slowly sinking southward through all of New Jersey. This will allow strong bands of snow to form over CNJ and SNJ just north of the boundary. NNJ should still see light to moderate snowfall but faces a potential sharp cutoff to the NW due to Arctic high-reinforced dry air mass. With that being said, we’re looking at a CNJ/SNJ jackpot scenario with the potential for someone to hit 12″ of snow accumulation. My official KABOOOM will not come until that has happened but keep in mind, a decent amount of model guidance is showing it. Also keep in mind that colder temperatures in the mid and upper layers should result in snow ratios slightly greater than 10:1 (snow inches to liquid inches).

In English: After rain changes back to ice and then snow tomorrow evening, expect 6-12″+ for CNJ/SNJ and lesser amounts for NNJ. The length of icing is still uncertain but if temperatures are going to crash as anticipated, it shouldn’t be too long. The above map is pretty straightforward otherwise. As far as timing goes, I anticipate the changeover to happen within a few hours of sunset tomorrow evening. That will start the snowy period that should taper off by noon on Thursday. Be safe! JC

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Jonathan Carr
By Jonathan Carr March 3, 2015 14:32

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