The National Weather Service has posted a Winter Storm Warning for Washington DC for snow and ice this afternoon. Accumulations of 4 to 6 inches are expected, followed by sleet and freezing rain this afternoon. A Winter Weather Advisory is in effect for Baltimore and Annapolis where 2 to 5 inches of snow is anticipated. Snow has been falling since before sunrise at these locations. Most of the snow has been light to moderate, but heavier snow has occurred from time to time. Snow has been particularly heavy over southern Maryland where 6 to 10 inches of snow is expected.
As we move through the afternoon hours, snow will gradually change over to sleet and freezing rain as warmer air moves overhead and surface temperatures approach 30 degrees. During the overnight hours, sleet and freezing rain will change over to all rain as thermometer readings climb through the 30s. Before the change over to rain, icy conditions can be expected in central Maryland until temperatures rise above the freezing point. By Tuesday morning, rain will be falling over the area with temperatures rising into the 40s. Flooding may be a problem in some areas as moderate rainfall and warmer temperatures results in a rapid melting of snow.
Here is the timeline of the winter storm that will impact central Maryland on Monday:
- Monday 12 a.m. to 3 a.m.: A chance of light snow, developing from south to north. Temperatures 18 to 21.
- Monday 3 a.m. to 6 a.m.: Widespread light snow, accumulating up to 1″. Temperatures 20 to 25.
- Monday 6 a.m. to Noon: Light to moderate snow, accumulating another 1 to 2″. Temperatures 25 to 30.
- Monday Noon to 3 p.m.: Light to moderate snow, changing to sleet. Temperatures around 30.
- Monday 3 p.m. to 6 p.m.: Sleet and freezing rain. Temperatures around 30.
- Monday 6 p.m. to Midnight: Freezing rain and mist, changing to rain. Temperatures 30 to 35.
- Tuesday 12 a.m. to 6 a.m.: Periods of rain. Temperatures 35 to 40.
- Tuesday 6 a.m. to Noon: Periods of rain. Temperatures 40 to 45.
Here is the exclusive weather forecast for Baltimore, Annapolis, and Washington D.C.:
Monday: Snow with 3-6″ accumulation possible in Baltimore, Annapolis, and Washington, D.C. before changing to sleet in the afternoon. The high will be in the lower 30s. Monday Night: Sleet changing to freezing rain and then to rain after midnight. Temperatures will hold in the lower 30s. Tuesday: Periods of rain with a high in the mid 40s. Wednesday: Clouds and sun with a high in the mid 40s. Thursday: Mostly sunny with a high near 40. Friday: Clouds and sun with a high in the mid 40s. Saturday: Mostly sunny and mild with a low in the upper 30s and a high in the lower 50s. Sunday: Mostly sunny with a low in the mid 30s and a high in the lower 50s.
- Baltimore average lows and highs
- Washington average lows and highs
- National Weather Service daily weather discussion
- Baltimore/Washington National Weather Service
- Chesapeake Bay marine forecast
- Mid-Atlantic radar loop
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