Winter Storm Threat: March 20-21 (Only/Final Call)

Lots of uncertainty with this setup given that 1) surface temperatures are marginal, 2) mixed precipitation could greatly reduce snow/sleet totals depending on how far north+west the mixing line goes, 3) precipitation rates fighting daytime sun both Tuesday and Wednesday, 4) it’s actually two waves creating snow Tuesday night through Wednesday.

There’s going to be a lot of variability, but the corridor of 4-8″+ has the highest confidence based on the factors listed above. Anyone in the less than 4″ contours could see notable local variances based on elevation and where the best snow bands set up both Tuesday and Wednesday. Tuesday will be more elevation dependent than Wednesday, and banding will be the more significant factor Tuesday night into Wednesday.


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