Flash Flood Warning Extended for PG, Montgomery Counties

The National Weather Service has extended a flash flood warning for much of Maryland after strong thunderstorms dumped up to 2 inches of rain in some areas, with more rainfall possible this evening.

Prince George’s and Montgomery counties remain under a flash flood warning until 8:45 p.m. Tuesday.

The Washington, DC, area has been doused with several rounds of strong rain and another is moving through the region.

Cities that are likely to experience flooding include: Bethesda, Clinton, Fort Washington, Forestville, Largo, Bladensburg, National Harbor and Fedex Field.

Earlier, much of the state was under a severe thunderstorm warning that expired at 2:15 p.m. ET., while Howard and a portion of Baltimore county were under a tornado warning that ended at 2 p.m.

A severe thunderstorm watch means that atmospheric conditions are favorable for severe thunderstorm development. The severe thunderstorm watch outlines an area where an organized threat of severe thunderstorms is expected generally during a three- to six-hour period.

A warning means a thunderstorm is imminent.

Here's the NWS forecast for the area Tuesday evening:

"...Showers and thunderstorms likely this afternoon. Some thunderstorms may produce gusty winds this afternoon. Highs in the lower 90s. West winds around 10 mph. Chance of rain 70 percent. Mostly cloudy with showers and thunderstorms likely in the evening...then mostly clear with a slight chance of showers and thunderstorms after midnight. Some thunderstorms may produce gusty winds in the evening. Lows in the upper 60s. West winds 5 to 10 mph. Chance of rain 60 percent."