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Severe Thunderstorm Watch 463
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WW0463 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.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 463
   NWS STORM PREDICTION CENTER NORMAN OK
   340 PM CDT SAT JUN 11 2011
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          SOUTHWEST KANSAS
          NORTHWEST OKLAHOMA AND THE OKLAHOMA PANHANDLE
          THE NORTHEAST TEXAS PANHANDLE
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 340 PM UNTIL
   1100 PM 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 75
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 20 MILES NORTH
   NORTHWEST OF ELKHART KANSAS TO 50 MILES SOUTH SOUTHEAST OF ALVA
   OKLAHOMA.  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...CONTINUE...WW 462...
   
   DISCUSSION...CONVECTIVE INHIBITION IS WEAKENING ALONG AND N OF A
   WARM FRONT IN THE TX PANHANDLE AND WRN OK...WHERE MODERATE
   INSTABILITY COINCIDES WITH SUFFICIENT DEEP-LAYER SHEAR FOR
   SUPERCELLS.  SURFACE-BASED THUNDERSTORM DEVELOPMENT WILL BECOME MORE
   PROBABLE IN THE NEXT FEW HOURS...AND THERE WILL BE SOME POTENTIAL
   FOR ONGOING ELEVATED STORMS TO ROOT IN THE BOUNDARY LAYER. 
   OTHERWISE...THE SUPERCELLS IN SE CO COULD EVENTUALLY GROW INTO A
   CLUSTER AND MOVE EWD/ESEWD INTO THE WATCH AREA FROM THE W.  LARGE
   HAIL AND DAMAGING WINDS WILL BE THE MAIN SEVERE THREATS INTO EARLY
   TONIGHT.
   
   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 28020.
   
   
   ...THOMPSON
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