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December 16-17, 2020 Winter Storm Obs/Nowcasting


WxUSAF
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Oscillating bands of snow, sleet and rain, with the sleet band most frequently aligned from northwest suburbs of PHL to central DC. Results in numerical terms will probably be something like this: 

Location ______ Precip ____ Snow

PHL ___________ 0.75 _____ 2.0

BWI ___________ 1.25 _____ 2.5

DCA ___________ 0.80 _____ 1.9

IAD ____________ 1.35 _____ 6.0

GAI ____________ 1.40 _____ 8.0

FDK ____________ 1.50 ____11.0

HGR ___________ 1.50 ____ 12.5

ne MD (???) ____ 1.80 ____ 5.5 (heavy icing)

CXY MDT _______ 1.40 ___ 16.5

Would expect the best snowfalls in marginal areas to be overnight (16-17) as the slight diurnal ranges will play a role in where bands set up. 

Obviously a lot of uncertainty with more bust potential on high side of these snowfall numbers.

This is where work from home is going to look really good, that impact on evening commute does not apply to the walk from kitchen to den or does it? 

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