Tuesday / Wednesday Storm (Monday Noon Update)

24 hours ago, we were looking at being on the northern fringes of a developing clipper. Originally, we were looking at a nice light snowfall on the order of 1-3". Over the past 24 hours, this has grown into a rather potent system which will bring another plowable snowfall to the area. The developing clipper will now make it to the coast where it will rapidly deepen and throw back a decent amount of snows from DC to Boston. It will be a fairly quick moving storm (12 hours) but it will drop some fairly impressive snows. as of now, look like the snow will start around 1pm Tuesday and last until around 1am Wednesday.

An Arctic front will move through tonight keeping temperatures in the 20's tomorrow. This should be an all snow event, with no chance of mixing. Snow will work in around 1pm and will probably start sticking pretty quickly. Snow will really start picking up during the afternoon. Travel will quickly become treacherous and rush hour tomorrow will be pretty nasty. Snow will continue through the evening into the night and will last until the early morning hours on Wednesday. As of now, I am looking at 4-6" of snow area wide, with potential for more in any banding that sets up.

Any time we have a developing low pressure along the coast, we will have to watch the exact area where it develops. This will coincide with where the best precipitation will develop. As of now, it is modeled to set up in a prime area for snows. This is a prime I-95 storm. Depending how fast the low pressure can develop, heavy snow bands can enter the area, along with thundersnow. Of course, exact development area will dictate where those bands set up.

A quick update on models. Last night, models began to really show the potential. All models were showing a decent event, minus the NAM model. This morning, the NAM began to see it as well, and now all models are showing a decent storm. The Euro model last night was showing a lighter event, with mostly 2" up to about 195 in NJ and less above that. Will be interested to see what it shows at noon today. The Euro is the last hold out.

As always, more to come. I will update again in the afternoon and night!