Pi Day Blizzard / Nor'easter: What you need to know
Tuesday is "Pi Day" and snow amounts could be at or over the value of pi (3.14...) inches per hour! Amounts are likely to be over 2 feet in some areas. Everyone agrees that northeastern Pennsylvania, northwestern New Jersey and parts of New England will be the hardest hit. The big cities are less easy to guarantee a big snow because rain could mix in.
According to our forecast, amounts of snow from this storm could turn out similar to the Blizzard of 2016 in south-central Pennsylvania. Outside of that, however, snow will be much heavier from northeastern Pennsylvania through coastal New England, and lighter in the D.C. and Philadelphia areas, due to rain mixing in. Remember though, 12-15 inches will get this storm in the top 10 snowstorms of all-time for those cities.
Thundersnow is likely in some areas, probably early tomorrow morning in eastern Pennsylvania; the Storm Prediction Center issued a map showing this at 9 this morning but removed it in their afternoon update.
Here is more information on the timing for four major cities:
The winner for "most ridiculous forecast" from this storm goes to the SREF Plume model's 21Z forecast yesterday for Elmira, New York, predicting up to 70 inches of snow, with a mean of 30 inches!
Below are additional forecasts from the NWS and four different forecast models.
