From the ABC 7 Weather team

Washington, D.C. weather forecast: Saturday showers appear likely

September 20, 2013 - 11:09 PM
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A cold front will bring showers and thunderstorms Saturday afternoon.

Overnight:
Partly cloudy
Lows: near 60°
Wind: South 5-10 mph
Sunday:
Becoming cloudy with showers and thunderstorms developing
Highs: upper 70s to lower 80s
Wind: South 5-10 mph
Monday:
Turning partly cloudy and breezy
Highs: middle 70s
Wind: NW 5-10 mph

 

High pressure is slowly moving eastward off the mid-Atlantic Coast. Southerly winds developing ahead of tomorrow’s cold front have slightly increased temperatures, humidity levels and cloud cover. Tomorrow is looking v good for outdoor activities during the morning and mid-day. But as the cold front approaches, showers and scattered thunderstorms will be developing and moving from west to east from the mountains to the Chesapeake Bay  during the mid to late afternoon and eventually off the coast early on Sunday.

There are some timing issues trying to determine when the I-95 region will see the rain begin. My best estimate is for showers and storms to begin affecting the area between 3 pm and 6 pm. The farther west you are from DC, the earlier you will deal with the rain. Some of the thunderstorms will produce very heavy rain. Flood Watches may be posted over parts of the region.

The front and the rain will move out early Sunday morning. Clearing and breezy weather is forecast during the day on Sunday. And as the next sprawling area of high pressure arrives, we may see 5 straight days of sunshine, from Monday through Friday next week.

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