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December 16-17, 2020 Winter Storm Obs/Nowcasting


WxUSAF
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3 minutes ago, Mimiof2 said:

5:30 pm obs 29 degrees 

Sharpsburg, MD 420' ASL

Light sleet since about 4:45pm

Snow total a hair under 7".

Isnt this supposed to backfill as the low moves north??

Yes it is. Expect it to pick back up in next hour or so.

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Just now, Eskimo Joe said:

Don't look now, but SPC mesoanalysis has the surface low at 1000mb off the mouth of Chesapeake, well east of any of the warmer NAMs, eta. 

I think there was a post-storm model analysis thread that year. If the low doesn't end up shooting up the Bay, it would be really interesting to go back and see what happened/who the winners and losers were. Based on the current track, assuming I'm remembering right, the GEFS would actually get a fair bit of credit. HRRR too. 

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