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Severe Thunderstorm Watch 310
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WW0310 Radar
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   SEL0
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 310
   NWS STORM PREDICTION CENTER NORMAN OK
   745 PM EDT SUN MAY 11 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL NORTH CAROLINA
   
   EFFECTIVE THIS SUNDAY EVENING FROM 745 PM UNTIL 1100 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 70
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES NORTHEAST OF
   RALEIGH NORTH CAROLINA TO 40 MILES SOUTHWEST OF FAYETTEVILLE
   NORTH CAROLINA.  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...THIS SEVERE THUNDERSTORM WATCH REPLACES
   TORNADO WATCH NUMBER 307. WATCH NUMBER 307 WILL NOT BE IN EFFECT
   AFTER 745 PM EDT. CONTINUE...WW 308...WW 309...
   
   DISCUSSION...COMPLEX SETUP ACROSS NC THIS EVENING WITH STRONG UPPER
   SYSTEM AND COLD TEMPERATURES ALOFT MAINTAINING THUNDERSTORMS
   SPREADING EWD ACROSS THE STATE...DESPITE EARLIER THUNDERSTORM
   ACTIVITY MOVING ACROSS ERN NC.  IN WAKE OF SURFACE LOW AND LEADING
   TROUGH OVER ERN NC EARLY THIS EVENING...WLY WINDS AND DRYING SURFACE
   CONDITIONS APPEAR TO HAVE LIMITED TORNADO POTENTIAL OVER CENTRAL NC.
    HOWEVER...VERY STEEP LAPSE RATES AND 35-45 KT EFFECTIVE SHEAR
   SHOULD STILL SUPPORT A FEW SUPERCELLS/ORGANIZED CLUSTERS WITH
   PRIMARY THREATS OF LARGE HAIL AND ISOLATED DAMAGING WINDS FOR A FEW
   MORE HOURS.
   
   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 400. MEAN STORM
   MOTION VECTOR 27035.
   
   
   ...EVANS
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Page last modified: May 12, 2008
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