6:00 AM | ***Slow-moving and powerful ocean storm to bring us rain and damaging wind gusts...widespread power outages a real concern***

6-Day DC Forecast

Today

Cloudy, mild, periods of rain; primarily, during the mid-day and afternoon hours, highs in the low-to-mid 50’s

Tonight

Cloudy, becoming breezy and turning colder with periods of rain, lows near 40 degrees

Friday

Cloudy, becoming extremely windy, cold, more rain is likely and there is a chance that it mixes with or changes to sleet and/or snow in some areas, lower 40’s for highs early

Friday Night

Extremely windy and cold with snow or rain showers possible, low-to-mid 30’s for late night lows

Saturday

Partly sunny, very windy, cold, mid 40’s

Sunday

Mainly sunny, chilly, mid-to-upper 40’s

Monday

Mainly sunny, chilly, upper 40’s

Tuesday

Partly sunny, chilly, chance of showers, mid-to-upper 40’s

Discussion

Very strong high-latitude blocking is now forming in the upper part of the atmosphere over Greenland and northern Canada and this feature will become a key factor in the unfolding weather scenario for the Mid-Atlantic region. A major ocean storm will form by later tomorrow and it will be a slow-mover as a result of the blocking pattern to the north; consequently, it’ll impact the region for an extended period of time. This powerful storm will generate primarily rain for us and as rapid intensification unfolds, damaging wind gusts to 60 mph will become quite likely. Widespread power outages are a real concern in the DC metro region given the expected extreme winds and wet grounds from recent rains. As colder air gets wrapped into the storm, there is a chance that the rain mixes with or changes to sleet and/or snow in some areas.

Meteorologist Paul Dorian
Vencore, Inc.
vencoreweather.com