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Tornado Watch 245
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WW0245 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate 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.
   SEL5
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 245
   NWS STORM PREDICTION CENTER NORMAN OK
   940 PM CDT WED APR 27 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          ALABAMA
          FAR SOUTHEAST MISSISSIPPI
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 940 PM
   UNTIL 200 AM CDT.
   
   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 45 STATUTE
   MILES EAST AND WEST OF A LINE FROM GADSDEN ALABAMA TO 105 MILES
   SOUTHWEST OF SELMA ALABAMA.  FOR A COMPLETE DEPICTION OF THE
   WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   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 235...WW 238...WW
   239...WW 240...WW 241...WW 242...WW 243...WW 244...
   
   DISCUSSION...WHILE STRONG MIDLEVEL VORTICITY MAXIMUM IS NOW
   BEGINNING TO LIFT NEWD AWAY FROM THE REGION...LOW-LEVEL CONVERGENCE
   SHOULD SERVE TO MAINTAIN TSTMS ALONG COLD FRONT PROGRESSING EWD
   ACROSS WW AREA.  AMBIENT AIR MASS REMAINS VERY MOIST AND MODERATELY
   UNSTABLE WITH MLCAPE VALUES OF 1500-3000 J/KG.  WHEN COUPLED WITH
   EFFECTIVE SRH VALUES OF 300-500 M2/S2...ENVIRONMENT REMAINS
   SUPPORTIVE OF SUPERCELLS CAPABLE OF TORNADOES...LARGE HAIL AND
   DAMAGING WINDS WINDS.
   
   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 24040.
   
   
   ...MEAD
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Page last modified: April 28, 2011
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