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Light Snow Likely Sunday
Winter Weather Advisory in Effect Tomorrow

Jason Samenow @ 6:00 PM

Winter continues to tighten its grip on the region with quite brisk conditions on tap for today and some snow looking increasingly likely late Sunday.


Forecast Confidence: HighIncreasing clouds. Clear skies early will give way to increasing clouds late at night. Winds will gradually subside but temperatures will be chilly with lows 19-24 (suburbs-city).


Forecast Confidence: MediumLight snow probable in the afternoon and evening. Clouds will lower and thicken in the morning. In the afternoon, light snow is likely (70% chance) to develop from southwest to northeast. High temperatures should be in the mid 30s.

Overnight, snow should begin to taper by mid evening, with patches of freezing drizzle overnight and lows 25-30 (suburbs to city). Untreated roads may be slick overnight and Monday morning.

Snow Lover's Crystal Ball

Next Chance of Accumulating Snow:
Sunday, Jan 21 - Monday, Jan 22
Probability: 70%
Potential Impact:

Commentary: Per the forecast above, low pressure will approach from the southwest bringing a period of snow during the second half of Sunday. As of now, flurries would likely begin in the immediate DC area in the early to mid afternoon with a period of steady snow (mostly light) late in the afternoon through mid evening followed by some freezing drizzle. Accumulations will probably be around an inch around DC -- with more southwest (1-3") and less northeast (less than 1"). Tomorrow, we'll post an accumulation map, storm impact assessment and detailed information on timing.

Subsequent Chance of Accumulating Snow:
Wednesday, Jan 24 - Thursday, Jan 25
Probability: 20%
Potential Impact:

Commentary: A more significant weather event may unfold Wednesday night into Thursday as some new model guidance suggests the possibility of a southern low combining with a northern low off the North Carolina coast Wednesday night creating a large storm. All sorts of things could prevent this storm from being a big snow producer here (e.g. a changeover to rain, the storm forming too far out to sea or to our north or not at all) -- so it's premature to get hyped about this. There is potential, though.

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