DC 
   .    DISTRICT OF COLUMBIA COUNTIES INCLUDED ARE

   DISTRICT OF COLUMBIA
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DE . DELAWARE COUNTIES INCLUDED ARE: KENT, NEW CASTLE, SUSSEX 

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MD . MARYLAND COUNTIES INCLUDED ARE:

ALLEGANY, ANNE ARUNDEL, BALTIMORE, CALVERT, CAROLINE, CARROLL, CECIL, CHARLES, DORCHESTER, FREDERICK, HARFORD, HOWARD, KENT, MONTGOMERY, PRINCE GEORGES, QUEEN ANNE'S, SOMERSET, ST. MARYS, TALBOT, WASHINGTON, WICOMICO, WORCESTER,

MARYLAND INDEPENDENT CITIES INCLUDED ARE: BALTIMORE CITY 

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URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 510
   NWS STORM PREDICTION CENTER NORMAN OK
   110 PM EDT TUE JUL 24 2012

   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 

          DISTRICT OF COLUMBIA
          DELAWARE
          MARYLAND
          NORTHERN NORTH CAROLINA
          SOUTHERN PENNSYLVANIA
          MUCH OF VIRGINIA
          EASTERN WEST VIRGINIA
          COASTAL WATERS

   EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 110 PM UNTIL
   800 PM EDT.

   HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 85
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 45 MILES SOUTH
   SOUTHWEST OF BLUEFIELD WEST VIRGINIA TO 45 MILES EAST NORTHEAST
   OF BALTIMORE MARYLAND.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU0).

   REMEMBER...A SEVERE THUNDERSTORM WATCH MEANS CONDITIONS ARE
   FAVORABLE FOR SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
   AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
   THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
   AND POSSIBLE WARNINGS. SEVERE THUNDERSTORMS CAN AND OCCASIONALLY
   DO PRODUCE TORNADOES.

   OTHER WATCH INFORMATION...CONTINUE...WW 508...WW 509...

   DISCUSSION...SCATTERED THUNDERSTORMS WILL DEVELOP THIS AFTERNOON
   OVER THE MOUNTAINS OF WESTERN VA AND SOUTHERN PA...SPREADING ACROSS
   THE WATCH AREA THROUGH THE AFTERNOON AND EARLY EVENING.  HOT/MOIST
   SURFACE CONDITIONS COUPLED WITH STRONG LOW/MID LEVEL WESTERLY WINDS
   WILL PROMOTE THE RISK OF SCATTERED SEVERE STORMS CAPABLE OF DAMAGING
   WINDS AND HAIL.