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Severe Thunderstorm Watch 76
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WW0076 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very 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.
   SEL6
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 76
   NWS STORM PREDICTION CENTER NORMAN OK
   615 PM CDT SUN MAR 31 2013
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTH TEXAS
          COASTAL WATERS
   
   EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 615 PM UNTIL
   100 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 60
   STATUTE MILES EITHER SIDE OF A LINE FROM 10 MILES NORTHWEST OF
   LAREDO TEXAS TO 20 MILES SOUTHEAST OF BEEVILLE TEXAS.  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 73...WW 74...WW 75...
   
   DISCUSSION...SEVERE STORMS --INCLUDING SUPERCELLS-- OVER ERN
   PORTIONS OF THE EDWARDS PLATEAU ARE EXPECTED TO MOVE/DEVELOP SSEWD
   ACROSS THE WATCH AREA THIS EVENING INTO TONIGHT IN TANDEM WITH A
   COMPOSITE FRONT/OUTFLOW BOUNDARY SETTLING SWD.  AMBIENT...INFLOW AIR
   MASS IS HOT AND RELATIVELY MOIST WITH STEEP LOW TO MIDLEVEL LAPSE
   RATES AND RESULTANT MLCAPE OF 1500-2000 J/KG.  WHEN COUPLED WITH A
   VERTICALLY VEERING WIND PROFILE WITH 40-50 KT OF DEEP...WNWLY
   SHEAR...THE SETUP WILL REMAIN SUPPORTIVE OF SUPERCELLS CAPABLE OF
   LARGE HAIL AND DAMAGING WINDS THROUGH THIS EVENING.
   
   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 33025.
   
   
   ...MEAD
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Page last modified: April 01, 2013
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