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Severe Thunderstorm Watch 155
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WW0155 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
High 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
   SEVERE THUNDERSTORM WATCH NUMBER 155
   NWS STORM PREDICTION CENTER NORMAN OK
   240 PM CDT THU APR 16 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          OKLAHOMA PANHANDLE
          WEST TEXAS INCLUDING THE PANHANDLE
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 240 PM UNTIL
   1000 PM CDT.
   
   HAIL TO 2.5 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 80
   STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTH OF
   GUYMON OKLAHOMA TO 50 MILES SOUTH SOUTHEAST OF LUBBOCK TEXAS. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU5).
   
   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...THUNDERSTORMS WILL CONTINUE TO INCREASE IN COVERAGE AND
   INTENSITY THIS AFTERNOON AND EARLY EVENING AS SHORTWAVE TROUGH OVER
   NM APPROACHES REGION.  STEEP MID LEVEL LAPSE RATES...MODERATE MUCAPE
   VALUES...AND FAVORABLE EFFECTIVE SHEAR SUGGEST A RISK OF SUPERCELLS
   CAPABLE OF LARGE HAIL AND DAMAGING WINDS.  POTENTIAL FOR ISOLATED
   TORNADOES COULD ALSO INCREASE THIS EVENING WHEN AN UPGRADE TO A
   TORNADO WATCH MIGHT NEED TO BE CONSIDERED.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 450. MEAN STORM
   MOTION VECTOR 24035.
   
   
   ...HART
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