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Winter 2012-13
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30-yr average: 14.5"

Record: 56.1" (2009-10)

Winter forecast 2012-13

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Posted at 11:10 PM ET, 02/17/2012

Sunday snow chances take a hit

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Comparison between NAM model runs from last night and tonight (StormVistaWxModels.com)
Sunday accumulation potentialAll day long, model guidance has been trending drier and less snowy for Sunday. As icing on the cake, the NAM model - which had been the “snowy” model - simulated no snow for D.C. in its latest run this evening. And the GFS also now indicates no snow Sunday.

Earlier today, we talked about three snow scenarios for Sunday - a low, middle, and high. We slightly favored the middle scenario, but in light of the latest model trends, we now favor the low scenario which is for less than 1” and possibly no snow Sunday in much of the metro region.

We caution that the storm is still 36 hours away and that the gradient between snow and no snow is tight ... so adjustments to the forecast may be required tomorrow.

By  |  11:10 PM ET, 02/17/2012

Categories:  Latest, Winter Storms

Next: PM Update: More warmth, storm chances inch up Wednesday

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