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Severe Thunderstorm Watch 251
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WW0251 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
Moderate Moderate

Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
Note: Click for Watch Status Reports.
   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 251
   NWS STORM PREDICTION CENTER NORMAN OK
   405 AM CDT WED MAY 6 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN ALABAMA
          NORTHWEST GEORGIA
   
   EFFECTIVE THIS WEDNESDAY MORNING FROM 405 AM UNTIL 1000 AM CDT.
   
   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 55
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 50 MILES SOUTHWEST
   OF MUSCLE SHOALS ALABAMA TO 30 MILES SOUTH OF ROME GEORGIA.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   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 248...WW 249...WW 250...
   
   DISCUSSION...THUNDERSTORMS WILL INCREASE WITHIN WAA REGIME ALONG AND
   NORTH OF SURFACE WARM FRONT FROM NRN AL INTO NWRN GA EARLY THIS
   MORNING.  AIR MASS IS MODERATELY UNSTABLE WITHIN WARM SECTOR AND WW
   LIES WITHIN 40-50 KT EFFECTIVE SHEAR...SUPPORTIVE OF SUPERCELLS. 
   LARGE HAIL IS PRIMARY CONCERN WITH THESE INITIAL STORMS.  ADDITIONAL
   THREAT IS EXPECTED TO MOVE ESEWD ACROSS WW BEGINNING AROUND DAYBREAK
   AS POSSIBLE BOWING MCS MOVES ALONG SURFACE WARM FRONT.  THIS
   ACTIVITY SHOULD BRING ENHANCED THREAT OF DAMAGING WINDS ACROSS NRN
   AND PARTS OF CENTRAL AL THROUGH THE MID MORNING...AND POSSIBLY BEGIN
   IMPACTING NRN/WRN GA THEREAFTER.
   
   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 27035.
   
   
   ...EVANS
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