From Harford County Council District C Councilman “Capt’n” Jim McMahan:
UPDATE FROM THE NATIONAL WEATHER SERVICE
Flash Flood Watch now in effect through Wednesday afternoon for Portions of Maryland, East Of The blue ridge and west of the Chesapeake bay, This includes the Washington and Baltimore metropolitan areas. Gulf and Atlantic moisture of tropical depression Lee will continue to interact with a nearly stationary boundary, producing widespread rain across the area. Additional rainfall amounts through Tuesday will average 2 to 4 inches, With Isolated Higher totals expected.
Very heavy rain may cause rapid rises in creeks and streams. Do not drive through roadways covered with water. Portions of the I-95 corridor between Washington and Baltimore have already received between 1 to 2 inches and little additional rainfall will be needed to produce localized areas of flash flooding.
NOW LETS LOOK AHEAD A LITTLE
The possible interaction of Tropical Storms Lee and Katia later this week lend evidence to what the crab-pickers of Crisfield perceive. Old timers on the eastern shore of Maryland have a feeling in their bones about the rest of the week. Footsforecast’s Severe Weather and Tropical Teams alike have significant concerns about the increasing proximity of Lee and Katia in the Wednesday-Friday time period. Moisture propagating northeastward from Lee, and driven east by an approaching cold front could collide with western streaming energy and moisture from Katia. Neither system has an effective escape route at present, and the avenues seem to be closing. The least desirable scenario may be the most plausible one: Moisture from both systems converges to deliver 6-10″ of rain Wednesday to Friday in some places which are still reeling from the impacts of Irene.
THE BEST ADVICE? If you lost power or had downed trees from Irene, no one can rule out those problem recurring from the remnants of Lee. Weakened tree root systems will be compounded by another dose of torrential rainfall Wed through Fri. If your basement or property is prone to flooding in even a thunderstorm, we urge you to be wise and prepare.
Credit information to NWS, Foots forecast team and what this ol councilman feels is coming.