

338 

WWUS20 KWNS 011752

SEL3

SPC WW 011752

DCZ000-MDZ000-NCZ000-PAZ000-VAZ000-CWZ000-020100-



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.





...CARBIN

