Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.

THE NATIONAL WEATHER SERVICE HAS EXTENDED SEVERE THUNDERSTORM WATCH 288 TO INCLUDE THE FOLLOWING AREAS UNTIL 8 PM EDT THIS EVENING THE DISTRICT OF COLUMBIA IN MARYLAND THIS WATCH INCLUDES 5 COUNTIES IN CENTRAL MARYLAND ANNE ARUNDEL HOWARD PRINCE GEORGES IN NORTHERN MARYLAND HARFORD IN SOUTHERN MARYLAND CHARLES IN VIRGINIA THIS WATCH INCLUDES 3 COUNTIES IN CENTRAL VIRGINIA KING GEORGE IN NORTHERN VIRGINIA ARLINGTON STAFFORD THIS INCLUDES THE CITIES OF ABERDEEN, ANNAPOLIS, ARLINGTON, ARNOLD, BEL AIR, BOWIE, CAMP SPRINGS, CLINTON, COLLEGE PARK, COLUMBIA, DAHLGREN, EDGEWOOD, ELLICOTT CITY, FALLSTON, FALMOUTH, GLEN BURNIE, GREENBELT, HAVRE DE GRACE, JOPPATOWNE, LAUREL, ODENTON, SEVERN, SEVERNA PARK, SOUTH GATE, ST. CHARLES, SUITLAND-SILVER HILL, WALDORF, AND WASHINGTON.