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Severe Thunderstorm Watch 51
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WW0051 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Low 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.
   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 51...RESENT
   NWS STORM PREDICTION CENTER NORMAN OK
   810 AM CDT MON MAR 18 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          NORTHERN ALABAMA
          EXTREME SOUTHERN KENTUCKY
          NORTHEASTERN MISSISSIPPI
          MIDDLE AND PARTS OF EASTERN TENNESSEE
   
   EFFECTIVE THIS MONDAY MORNING AND AFTERNOON FROM 810 AM UNTIL 300
   PM CDT.
   
   HAIL TO 1.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 75
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTH OF
   TUPELO MISSISSIPPI TO 50 MILES NORTH NORTHWEST OF CROSSVILLE
   TENNESSEE.  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.
   
   DISCUSSION...BAND OF STG-SVR CONVECTION FROM VICINITY TN/KY BORDER
   SSWWD TO NRN MS IS BECOMING BETTER ORGANIZED.  EXPECT CORRESPONDING
   INCREASE IN SVR POTENTIAL AS ACTIVITY ENCOUNTERS BOUNDARY LAYER THAT
   WILL BECOME INCREASINGLY UNSTABLE WITH TIME...AND WILL CONTAIN MORE
   SFC-BASED EFFECTIVE INFLOW PARCELS.  DEEP SHEAR WILL REMAIN
   FAVORABLE FOR PRIMARY THREAT OF DAMAGING WIND...AND OCNL HAIL ALSO
   IS POSSIBLE.  BRIEF QLCS TORNADO CANNOT BE RULED OUT.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 65
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 25035.
   
   
   ...EDWARDS
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