Thursday, November 29, 2018

Wintry weather possible next Sunday & Monday (Dec 9-10)

WASHINGTON -- Another threat of wintry weather could be here next weekend, December 8-9, 2018. The week ahead looks cold enough to support snow and we may see some flurries Wednesday. But for us to have a "real" snow around here, there needs to be a storm to take advantage of that cold and that storm needs to track southeast of DC for us to get all snow. Too far southeast and the moisture misses us. Too far northwest and we see either a snow to mix to rain event or all rain. As of Sunday afternoon, December 2, 2018 the 12Z operational run of the GFS American model has a big snow for DC with snow to our northwest and more mix southeast as the main low traverses across the lower Chesapeake Bay. The GFS has the snow Sunday night through Monday afternoon. The 18z GFS was much farther south and more in-line with the ECMWF 12Z run. The 12Z operational ECMWF European Model has a much different solution with NO snow near us as the low tracks much farther south over souther North Carolina. This event is a long way off from a computer model perspective and we are likely to see the track on both models move some over the next few days. As we get closer to next weekend, look to see if we have more agreement between the models, that would be an indication of a more likely storm track. 2018 WUSA

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