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Severe Thunderstorm Watch 436
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WW0436 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Low

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 436
   NWS STORM PREDICTION CENTER NORMAN OK
   555 PM EDT TUE JUN 16 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          EXTREME NORTHEAST GEORGIA
          WESTERN NORTH CAROLINA
          UPSTATE SOUTH CAROLINA
          EASTERN TENNESSEE
          WESTERN VIRGINIA
   
   EFFECTIVE THIS TUESDAY AFTERNOON AND WEDNESDAY MORNING FROM 555
   PM UNTIL 100 AM EDT.
   
   HAIL TO 2 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 EITHER SIDE OF A LINE FROM 15 MILES SOUTH SOUTHWEST
   OF CHARLOTTE NORTH CAROLINA TO 55 MILES NORTH NORTHEAST OF
   KNOXVILLE TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE
   THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU6).
   
   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 433...WW 434...WW 435...
   
   DISCUSSION...WELL-DEFINED BOW ECHO WITH DAMAGING WINDS IS MOVING EWD
   ALONG THE SE KY/NE TN BORDER AT ABOUT 45 KT.  THIS SYSTEM MAY TEND
   TO PROPAGATE MORE ESEWD OVER THE NEXT FEW HOURS AS IT ENCOUNTERS AN
   INSTABILITY GRADIENT WITH COOLER/MORE STABLE AIR FARTHER TO THE E IN
   NC/VA.  MEANWHILE...MORE ISOLATED STORMS ARE ONGOING ACROSS SC ALONG
   THE SAME INSTABILITY GRADIENT.  VERTICAL SHEAR AND INSTABILITY ARE
   AT LEAST MARGINALLY FAVORABLE FOR SUPERCELLS ACROSS SC...WITH LARGE
   HAIL THE MAIN THREAT.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
   MOTION VECTOR 28040.
   
   
   ...THOMPSON
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