Discussion: A slow moving front will put an end to our unseasonable heat tonight, and as it does so, severe thunderstorms will be possible across the northern and western suburbs. The biggest risk for these storms is the heavy rainfall, which could exceed 1-3 inches/hour in heavier cells.
We need all the rain we can get, and its quite possible that the immediate metro area sees a solid half inch of rainfall tonight as the storms move weaken as they push into the area. I am confident that most locales will see some rain with this system, although the true soaking rain will stay north and west of the immediate DC area.
Projected times of the first drops:
Winchester: 5:30
Hagerstown: 6:00
Frederick: 6:30 (although a pop-up storm did drop some rain earlier today...)
Werenton: 7:30
Fairfax: 9:00
Rockville: 9:30
Washington D.C.: 10:00
Baltimore: 10:30
Anapolis: 11:00
Fredericksburg south: rain not likely.
A line of strong storms has the potential of dropping some significant rain over the area tonight.
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