We are now under 60 hours away from a major winter storm that will impact the area Monday Night into Tuesday. This storm will likely go down as one of the top March snowstorms on record across the Northeast. There is no doubt that the storm is coming, at this point we are just trying to narrow down the track and as of this evening, there is quite a bit of spread.
For our first call snow map, we generally took a blend of all the guidance we look at, not favoring one over the other, instead took a middle approach. Currently the GFS is the closest to that middle approach so we are going to use this model’s images for timing.
The snow will approach from south to north late Monday Night. Below is the GFS valid Tuesday 2 AM:
Most locations at this point are receiving a steady snowfall. Once we take it out farther here to 8 AM Tuesday, heavy snow has now overspread the area. Travel conditions will be near impossible all day Tuesday for central and eastern pa.
One thing to keep an eye on is the areas closest to I-95. The rain/snow line is very close per the GFS. Observing the rest of the guidance, most suggest this to be all snow event for the I-95, however some do allow for some mixing to take place, which could limit some snow totals.
The snowfall will begin to taper off across the state by Tuesday Evening. Below is the GFS valid Tuesday 8 PM:
FIRST CALL SNOWFALL FORECAST FOR TUESDAY’S MAJOR WINTER STORM
Timing: Snow will begin after 8 PM Monday Night for our southern counties, and will overspread the state south to north through midnight Tuesday Morning. The heart of the storm will be all of Tuesday Morning through the Afternoon. Snow will begin to taper off by the Evening hours on Tuesday.
Area A: Snow accumulations of 12-18″ are expected within this area.
Area B: Snow accumulations of 8-12″ are expected within this area.
Area C: Snow accumulations of 5-8″ are expected within this area.
Area D: Snow accumulations of 3-5″ are expected within this area.
Area E: Snow accumulations of 1-3″ are expected within this area.
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