TORNADO WATCH NUMBER 333

   SEL3          URGENT - IMMEDIATE BROADCAST REQUESTED     TORNADO WATCH NUMBER 333     NWS STORM PREDICTION CENTER NORMAN OK     150 PM EDT FRI JUN 1 2012          THE NWS STORM PREDICTION CENTER HAS ISSUED A     TORNADO WATCH FOR PORTIONS OF                  DISTRICT OF COLUMBIA            EASTERN MARYLAND            NORTHEAST NORTH CAROLINA            SOUTH-CENTRAL PENNSYLVANIA            NORTHERN AND EASTERN VIRGINIA            COASTAL WATERS          EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 150 PM UNTIL 900     PM EDT.          TORNADOES...HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND     GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE     AREAS.          THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 60 STATUTE     MILES EAST AND WEST OF A LINE FROM 30 MILES NORTH NORTHWEST OF     WILMINGTON DELAWARE TO 35 MILES SOUTH SOUTHWEST OF SOUTH HILL     VIRGINIA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE     ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU3).          REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR     TORNADOES AND 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.          OTHER WATCH INFORMATION...CONTINUE...WW 332...          DISCUSSION...THUNDERSTORMS WILL CONTINUE TO INCREASE THROUGH THE     AFTERNOON IN A VERY MOIST AND INCREASINGLY UNSTABLE AIRMASS FROM NC     NWD ACROSS VA...THE DC AREA...MD EASTERN SHORE...AND INTO SRN PA. AT     FIRST...MORE ISOLATED STORMS EXHIBITING WEAK ROTATION WILL POSE A     THREAT FOR ISOLATED SEVERE WEATHER IN THE FORM OF HAIL AND LOCALLY     STRONG WINDS FROM NC INTO SERN VA. WITH TIME...A MORE SUBSTANTIAL     WIND AND ISOLATED TORNADO THREAT WILL EVOLVE AS A STRONG UPPER     TROUGH AND ASSOCIATED COLD FRONT SPREAD EAST. FOCUSED TORNADO THREAT     MAY ALSO EVOLVE ALONG THE WARM FRONT LIFTING ACROSS THE DC/BWI AREA     AND INTO PARTS OF SCNTRL PA LATER THIS AFTERNOON AND EARLY EVENING.          AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL     SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE     WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO     500. MEAN STORM MOTION VECTOR 21030.