From the ABC 7 Weather team

Washington DC Weather: Severe weather possible today and tomorrow

June 12, 2013 - 07:57 AM
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A very active weather pattern will devlop tonight and last throughout the day Thursday. Severe weather is likely.

Isolated AM Shower, Partly Cloudy, Very Warm, Stray Afternoon Storm
Highs: Upper 80s
Wind: W 10 mph
Mostly Cloudy, Scattered Storms, Some Strong
Lows: 65º-72º
Wind: W 10 mph
Cloud/Sun Mix, Breezy & Warm, 70% Heavy Thunderstorms, Likely Severe
Highs: Upper 80s
Wind: SW 10-20+ mph


Very warm and humid conditions today and tomorrow will prime the atmosphere for more severe weather. A cold front will slowly drift southward across PA today and tonight. A strong area of low pressure will develop and move along that front overnight and through the day tomorrow. There has been online and blog chatter talking about a possible derecho. All we can say is that atmospheric conditions will be conducive to the development of lines and clusters of severe weather and that a derecho is not impossible. There is just no way to forecast one days in advance. The bottom line is this. Heavy to severe thunderstorms and everything that goes  with them will be possible from late tonight through the day tomorrow. Isolated torndoes, damaging winds and torrential downpours will be possible. And once the system moves out late Thursday night, strong winds may rush in with the next area of higher pressure on Friday.

After surveying the damage, the NWS has confirmed three tornadoes in Maryland with a final site in Howard County still under review. Get the latest in Eileen Whelan’s Storm Watch 7 blog.


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