7:00 AM | *Coastal storm on the way for tonight and Saturday...still unsettled on Sunday...much warmer by mid-week*
Paul Dorian
6-Day DC Forecast
Today
Cloudy and quite cool with rain likely by the end of the day, highs confined to the mid-to-upper 50’s
Tonight
Rain, heavy at times, cool, lows near 50 degrees
Saturday
Rain, heavy at times during the morning, quite breezy and cool, mid-to-upper 50’s for highs
Saturday Night
Rain still possible during the early evening hours, some clearing after midnight, breezy, chilly, upper 40’s for lows
Sunday
More clouds than sun, quite windy and cool, a shower or two is possible; especially, during the afternoon hours in northern sections, near 70 degrees
Monday
Mainly sunny, breezy, a bit milder, low-to-mid 70’s
Tuesday
Mainly sunny, warmer, near 80 degrees
Wednesday
Mainly sunny, breezy, very warm, mid-to-upper 80’s
Discussion
Low pressure will move along a frontal boundary zone later today and intensify into a significant storm by later tomorrow along the Mid-Atlantic coastline as a pair upper-level lows slowly phase together right on top of the region. This coastal storm will produce a soaking rainfall for the DC metro region from early tonight into late tomorrow and temperatures will remain well below normal for this time of year. While there will be some improvement on Sunday as the surface storm heads into New England, the atmosphere will remain quite unstable around here with cold air aloft associated with a deep upper-level low. This instability should lead to numerous (cumulus) clouds and a couple of showers are possible on Sunday; especially, during the afternoon hours and in northern sections. In addition, Mother’s Day will remain quite cool for this time of year and the wind will be quite noticeable on the back side of the storm. Looking ahead, much warmer air is likely to blast into the Mid-Atlantic region by the middle of next week. At the same time, very chilly air will dive into the western US and this combination of warm air to the east and cold air to the west could lead to a major severe weather outbreak in the central Plains come mid-week.
Meteorologist Paul Dorian
Vencore, Inc.
vencoreweather.com