7:00 AM | *Accumulating snow tonight and Friday morning...more snow possible Saturday night/early Sunday...major warm up next week*
6-Day DC Forecast
Sunshine followed by increasing clouds, cold, highs near 40 degrees
Cloudy with snow likely after 7 pm, it may start as a mix of rain and snow that would change over to all snow within a couple of hours of onset, cold, lows near 30 degrees
Mostly cloudy and cold with snow likely in the morning which can be mixed with rain at times to the south and east of the District, near 40 degrees
Becoming partly cloudy, cold, upper 20’s
Partly sunny, cold, chance for snow or snow showers late in the day or at night, low 40’s
Early morning snow or snow showers possible then becoming partly sunny, chilly, upper 40’s
Partly sunny, milder, mid 50’s
Mostly sunny, quite mild, near 65 degrees
Strong NW winds flooded the Mid-Atlantic region yesterday with a much colder air mass compared to recent days and this will set the stage for an accumulating snow event from later this evening into Friday. Clouds will increase later today as moisture begins streaming eastward from the Ohio Valley with low pressure dropping into the region from the Northern Plains. Snow should break tonight in the DC metro region - possibly mixed with rain for awhile - and continue into Friday morning with accumulations likely for the Friday morning commute. Rain can mix in at times on Friday; primarily, to the southeast of I-95.
By tomorrow morning, the initial Ohio Valley low pressure system will transfer its energy to a secondary low pressure system along the Mid-Atlantic coastline and this storm is expected to intensify rapidly as it pulls northeastward. As far as snowfall estimates are concerned, up to 3 inches of snow can fall in the DC metro region, but a slight shift to the northwest in the current expected storm track could increase accumulations significantly along the I-95 corridor - so stay tuned. A fast-moving "clipper" type of low pressure system will bring the chance for more snow to the Mid-Atlantic region on Saturday night and early Sunday with additional accumulations possible. After that, it is off to the races next week as far as temperatures are concerned as there will be a major warm up.
Meteorologist Paul Dorian