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WWUS20 KWNS 011912

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URGENT - IMMEDIATE BROADCAST REQUESTED

SEVERE THUNDERSTORM WATCH NUMBER 219

NWS STORM PREDICTION CENTER NORMAN OK

315 PM EDT TUE MAY 1 2012



THE NWS STORM PREDICTION CENTER HAS ISSUED A

SEVERE THUNDERSTORM WATCH FOR PORTIONS OF



       WESTERN AND NORTHERN NORTH CAROLINA

       SOUTHERN VIRGINIA



EFFECTIVE THIS TUESDAY AFTERNOON AND EVENING FROM 315 PM UNTIL

900 PM EDT.



HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70

MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80

STATUTE MILES EAST AND WEST OF A LINE FROM 50 MILES EAST

NORTHEAST OF LYNCHBURG VIRGINIA TO 30 MILES SOUTH SOUTHWEST OF

GREENSBORO NORTH CAROLINA.  FOR A COMPLETE DEPICTION OF THE WATCH

SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).



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 217...WW 218...



DISCUSSION...SCATTERED TSTMS ARE LIKELY TO CONTINUE TO

INCREASE/SPREAD EAST-SOUTHEASTWARD ACROSS SOUTHERN VA/NORTHERN NC

THIS AFTERNOON...WITH OTHER MORE PULSE-TYPE TSTMS ACROSS WESTERN NC.

MODERATE INSTABILITY/VERTICAL SHEAR ESPECIALLY ACROSS SOUTHERN

VA/NORTHERN NC WILL ALLOW FOR SUSTAINED MULTICELLS AND POTENTIALLY A

FEW SUPERCELLS WITH ASSOCIATED RISKS OF SEVERE HAIL/WIND.



AVIATION...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 29025.





...GUYER/MEAD

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