Watches, Warnings & Advisories for Sunflower Co.

Wednesday, April 20, 2011

Severe Thunderstorm Watch until 2:00AM 4/21/2011

URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 173
   NWS STORM PREDICTION CENTER NORMAN OK
   745 PM CDT WED APR 20 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          PARTS OF WESTERN ALABAMA
          PARTS OF SOUTHEAST ARKANSAS
          SMALL PART OF NORTHEAST LOUISIANA
          PARTS OF NORTHERN AND CENTRAL MISSISSIPPI
   
   EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 745 PM
   UNTIL 200 AM CDT.
   
   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 50
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 35 MILES WEST OF
   GREENVILLE MISSISSIPPI TO 30 MILES EAST OF TUSCALOOSA ALABAMA. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU3).
   
   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
   SEVERE THUNDERSTORM WATCH NUMBER 168...SEVERE THUNDERSTORM WATCH
   NUMBER 169. WATCH NUMBER 168 169 WILL NOT BE IN EFFECT AFTER 745
   PM CDT. CONTINUE...WW 170...WW 171...
   
   DISCUSSION...SEVERE THUNDERSTORMS INCLUDING SUPERCELLS CONTINUE TO
   REDEVELOP VICINITY OF OUTFLOW BOUNDARY FROM NRN MS ESEWD INTO
   CENTRAL AL. WITH MLCAPES AOA 2000 J/KG AND 40KT OF DEEP LAYER
   SHEAR...LARGE HAIL WILL CONTINUE TO BE A THREAT...PARTICULARLY
   ASSOCIATED WITH ANY SUPERCELL.
   
   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 27020.


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