The NAM is now within range for some more hi-resolution forecasts. One thing to keep in mind, is that these totals take sleet into consideration. Plus, the ground is already warm due to the recent warmth we have been experiencing. Therefore, these totals may have to be cut in half.
Nam snow totals ending 10am Sunday:
Start time is most likely after 7pm Saturday. DC will be first on the list to receive wintry precip including sleet. Nam shown for 7pm Saturday:
Then the storm is done by 7am for PA and much of the Mid-Atlantic. Coastal New England could still be experiencing snow. Nam model for 7am Sunday:
Model images courtesy of www.tropicaltidbits.com
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East Coast Weather Authority