6:00 AM | ***A major rain event underway for the entire DC metro region where localized flash flooding is a big concern***

6-Day DC Forecast

Today

Cloudy, windy, quite cool, occasional rain, maybe a thunderstorm, some of the rain will be heavy at times with localized flooding, highs not far from 70 degrees

Tonight

Cloudy, windy, cool, occasional rain, maybe a thunderstorm, some of the rain will be heavy at times with localized flooding, lows in the lower 60’s

Friday

Cloudy, breezy and still quite cool, occasional showers, some of the rain can be heavy at times with localized flooding, near 70 degrees

Friday Night

Cloudy, cool, occasional showers, lower 60’s

Saturday

Mainly cloudy with a continuing likelihood for showers, a bit milder, mid 70’s

Sunday

Partly sunny, comfortable, cannot rule out a shower, mid-to-upper 70’s

Monday

Partly sunny, nice, mid 70’s

Tuesday

Mainly sunny, nice, low 70’s

Discussion

**A major rain event is underway for the entire DC metro region and localized flash flooding is a serious concern**. A very slow-moving and vigorous upper-level low will help to produce a persistent flow of air off the Atlantic Ocean and this moisture will contribute to copious amounts of rainfall for much of the Mid-Atlantic region. The greatest rainfall amounts are likely to take place in the general region from central Virginia to central Pennsylvania which includes the entire DC metro region and especially in higher elevation locations where upsloping from persistent east-to-northeast winds will enhance rainfall amounts. Meanwhile, “Matthew” continues to churn as a tropical storm in the Caribbean Sea region and it could intensify into a major hurricane by later in the weekend. At some point, Matthew will take a sharp turn to the north and all eyes in the eastern states should continue to monitor its progress.

Meteorologist Paul Dorian

Vencore, Inc.

vencoreweather.com