7:00 AM | ****Major storm system impacts the region with accumulating snow, ice and rain****
Paul Dorian
6-Day DC Forecast
Today
Snow this morning becoming moderate-to-heavy at times, snow transitions to sleet and freezing rain this afternoon, cold, highs in the low-to-mid 30’s
Tonight
Freezing rain transitions to rain as temperatures slowly rise, cold, lows early in the night in the lower 30’s
Thursday
A chance of rain early then becoming partly sunny, milder, low-to-mid 50’s for afternoon highs
Thursday Night
Mainly cloudy, cold, low-to-mid 30’s for overnight lows
Friday
Mainly cloudy, chilly, mid 40’s
Saturday
Mainly cloudy, chilly, chance of rain, low-to-mid 40’s
Sunday
Mainly cloudy, much milder, chance of showers, low-to-mid 60’s
Monday
Mainly sunny, cool, lower 50’s
Discussion
A major winter storm will impact the Mid-Atlantic region today and tonight with accumulating snow on its front end before a changeover to ice and rain. An initial (primary) low pressure system will head towards the western Great Lakes today and a secondary low pressure will form near the Mid-Atlantic coastline. Another key player is strong, cold high pressure currently situated over New England and it will anchor cold, dense low-level air that will be reluctant to give up its ground. Snow will become moderate-to-heavy at times this morning in the DC metro region with accumulations expected on the order of 4-7 inches by later in the day (higher amounts in that range to the west/north, lower amounts to the south/east). By later this afternoon, milder air will advance into the region as winds turn more to the southeast and this should result in a changeover from snow to sleet and freezing rain and then ultimately to plain rain by later tonight. The low pressure system moves away on Thursday and allows for high pressure to build in from the west and temperatures could actually climb to 50+ degrees during the afternoon hours.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com