From the ABC 7 Weather team

Washington D.C. Forecast: Severe storms and heavy rain

July 3, 2014 - 03:29 PM
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A Severe Thunderstorm Watch and Flash Flood Watch are in effect through tonight.

This Evening:
Storms Likely, Possibly Severe
Temperatures: 90s into the 80s
Wind: S 10-15 m.p.h.
Overnight:
Lingering Showers, Becoming Breezy
Lows: 60s and low 70s
Wind: N 10-15 m.p.h.
Friday:
Morning Clouds, Afternoon Sun, Breezy Winds
Highs: Low to Mid 80s
Wind: N 10-20+ m.p.h.

SEVERE THUNDERSTORM WATCH and FLASH FLOOD WATCH in effect……

Weather-wise, a very interesting 18 hours ahead…for our area and especially for the Mid-Atlantic Coast. A slowly moving cold front crossing the Appalachian Mountains is pushing into a very warm, moisture-laden air across our area. Meanwhile, strengthening Hurricane Arthur with sustained winds of 90 mph is only 70 miles SSW of Cape Fear NC. The heavy rain and severe thunderstorms are being caused by the cold front…not by Arthur.

But later tonight, as the front gets closer and the outer circulation of Arthur gets closer, we will have to watch closely to see if our rainfall and flood potential becomes enhanced because of a possible interaction of the two separate systems. While this combination could prolong and expand the rainfall, we believe the merging effects of the front and Arthur will more likely be felt east and southeast of the Chesapeake Bay. As Arthur accelerates off the coast tomorrow morning, weather conditions will rapidly improve from west to east across our area and then the entire mid-Atlantic region….with the oceanfront areas the last to improve.

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