There's nothing odd about it. They do happen from time to time.
Since Billy brought it up, here's the forecast:
Currently:
Temp:63
Humidity:67%
Barometer: 29.75 and falling
Tornado Watch/O.NEW.KLWX.TO.A.0099.080304T2255Z- 080305T0800Z/
THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 99 IN EFFECT UNTIL 3 AM EST WEDNESDAY FOR THE FOLLOWING AREAS
THE DISTRICT OF COLUMBIA
IN MARYLAND THIS WATCH INCLUDES 11 COUNTIES
IN CENTRAL MARYLAND
ANNE ARUNDEL HOWARD MONTGOMERY PRINCE GEORGES
IN NORTH CENTRAL MARYLAND
CARROLL FREDERICK
IN NORTHERN MARYLAND
BALTIMORE HARFORD
IN SOUTHERN MARYLAND
CALVERT CHARLES ST. MARYS
IN VIRGINIA THIS WATCH INCLUDES 18 COUNTIES
IN CENTRAL VIRGINIA
ALBEMARLE GREENE KING GEORGE NELSON ORANGE SPOTSYLVANIA
IN NORTHERN VIRGINIA
ARLINGTON CULPEPER FAIRFAX FAUQUIER LOUDOUN PRINCE WILLIAM STAFFORD
IN NORTHWEST VIRGINIA
MADISON PAGE RAPPAHANNOCK
IN WESTERN VIRGINIA
AUGUSTA ROCKINGHAM
IN MARYLAND THIS WATCH INCLUDES 1 INDEPENDENT CITY
IN NORTHERN MARYLAND
BALTIMORE CITY
IN VIRGINIA THIS WATCH INCLUDES 10 INDEPENDENT CITIES
IN CENTRAL VIRGINIA
CHARLOTTESVILLE CITY OF FREDERICKSBURG
IN NORTHERN VIRGINIA
CITY OF ALEXANDRIA CITY OF FAIRFAX CITY OF FALLS CHURCH CITY OF MANASSAS CITY OF MANASSAS PARK
IN NORTHWEST VIRGINIA
CITY OF HARRISONBURG
IN WESTERN VIRGINIA
CITY OF STAUNTON CITY OF WAYNESBORO
THIS INCLUDES THE CITIES OF... ABERDEEN...ALEXANDRIA...ANNAPOLIS... ARLINGTON...BALTIMORE...BEL AIR... CHANTILLY...CHARLOTTESVILLE... CHARLOTTESVILLE...CHESAPEAKE BEACH... COLUMBIA...CULPEPER... DAHLGREN... EDGEWOOD...FAIRFAX...FALLS CHURCH... FALLSTON... FALMOUTH...FREDERICK... FREDERICKSBURG...GAITHERSBURG... GREENFIELD...HARRISONBURG... HARRISONBURG...HAVRE DE GRACE... JOPPATOWNE...LAUREL...LEESBURG... LURAY...MADISON...MANASSAS... MANASSAS PARK...MCLEAN...ORANGE...RESTON... SPOTSYLVANIA COURTHOUSE...ST MARYS... STANARDSVILLE...STAUNTON... STAUNTON... STERLING...TOWSON...WALDORF... WARRENTON...WASHINGTON... WASHINGTON... WAYNESBORO...WAYNESBORO... WESTMINSTER AND WOODBRIDGE.
Also in effect: Flood Watch, Coastal Flood Statement Tonight: Windy with rain likely and a few thunderstorms. A few storms may be severe. Low around 55F. Winds SSE at 20 to 30 mph.
Tomorrow: A few clouds early, otherwise mostly sunny. High around 55F. Winds W at 15 to 25 mph.
Tomorrow Night:Mostly clear. Low 36F. Winds NW at 10 to 15 mph.