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Severe Thunderstorm Watch 168
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WW0168 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.
   SEL8
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 168
   NWS STORM PREDICTION CENTER NORMAN OK
   310 PM CDT SAT APR 18 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL OKLAHOMA
          NORTH CENTRAL TEXAS
   
   EFFECTIVE THIS SATURDAY AFTERNOON AND EVENING FROM 310 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 65
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES EAST
   NORTHEAST OF ALVA OKLAHOMA TO 60 MILES SOUTHEAST OF WICHITA FALLS
   TEXAS.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED
   WATCH OUTLINE UPDATE (WOUS64 KWNS WOU8).
   
   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 165...WW 166...WW 167...
   
   DISCUSSION...SCATTERED STRONG/SEVERE THUNDERSTORMS ARE EXPECTED TO
   DEVELOP IN THE NEXT FEW HOURS OVER PARTS OF CENTRAL OK...AHEAD OF
   APPROACHING MID LEVEL SHORTWAVE TROUGH OVER THE TX PANHANDLE.  STEEP
   LAPSE RATES AND STRONG EFFECTIVE SHEAR WILL PROMOTE SUPERCELL
   STRUCTURES CAPABLE OF VERY LARGE HAIL.  STORMS MAY BECOME MORE
   LINEAR IN NATURE LATER THIS EVENING AS PRIMARY FORCING OVERSPREADS
   REGION.
   
   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 400. MEAN STORM
   MOTION VECTOR 24035.
   
   
   ...HART
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