7:00 AM | *"Clipper" system and an ocean storm to result in rain and/or snow showers activity on Friday and Friday night...spring fever alert for Monday*
Paul Dorian
6-Day forecast for the Washington, D.C. metro region
Today
Mainly sunny skies early with an increase in clouds late, cooler than yesterday, highs in the lower 50’s
Tonight
Mainly cloudy, cold, lows in the mid 30’s
Friday
Mainly cloudy, breezy, cold, occasional rain showers likely in the afternoon, mid-to-upper 40’s for afternoon highs
Friday Night
Mainly cloudy, cold, breezy, chance for rain and/or snow showers, small grassy accumulations are possible in the far northern suburbs, near 30 degrees late night lows
Saturday
Mainly sunny, breezy, chilly, mid-to-upper 40’s
Sunday
Mainly sunny, milder, near 60 degrees
Monday
Spring fever alert...Mainly sunny, even warmer, mid 60’s
Tuesday
Mainly cloudy, still warm, chance of showers, mid 60’s
Discussion
A strong “clipper” system will drop southeastward on Friday across the Great Lakes and into the northeastern part of the nation and it’ll create lots of instability in the atmosphere around here. At the same time, the southern storm that continues to produce significant rainfall in the southern states will intensify as it moves off the east coast and out over the western Atlantic. While this storm will be well off the east coast by late Friday, there can be an inverted trough (aka “norlun” trough) extending from the low pressure center all the way back to the Mid-Atlantic region which will also contribute to some instability in the atmosphere. The combination of the “clipper” system and the inverted trough is likely to lead initially to rain on Friday and then some rain and/or snow showers are likely on Friday night with small grassy accumulations possible in the far northern suburbs. The weekend will start off on the chilly and dry side, but a big time warm up will take place early next week. In fact, Monday will turn out to be a "spring fever" alert type of day with sunshine and afternoon highs well up in the 60's.
Meteorologist Paul Dorian
Perspecta, Inc.
perspectaweather.com