A quick glance at the evening model data indicates no big changes are required for Saturday night’s and Sunday’s forecast when some wintry precipitation may move into the region. As we said earlier, precipitation is likely to begin as light rain late Saturday afternoon. Then light rain may mix with and change to light snow from northwest to southeast late Saturday night. In the D.C. metro region, the best chance of snow is early Sunday morning except south and east of the city where precipitation may remain rain or a rain/snow mix.
Temperatures are likely to be too warm for much if any accumulation inside the beltway and to the south and east. Places which might get a slushy coating or a bit more are well north and west of the District towards western Montgomery, Loudoun, and Frederick counties. Especially in elevated areas, maybe an 1” or so could fall.
This is a complex storm system and details are still taking shape. Stay with us tomorrow for additional updates and refinements.