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Severe Thunderstorm Watch 402
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WW0402 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
High Moderate
Severe Hail 2"+ Hail
Moderate 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.
   SEL2
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 402
   NWS STORM PREDICTION CENTER NORMAN OK
   820 PM CDT SAT JUN 13 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          WESTERN AND CENTRAL OKLAHOMA
          NORTH TEXAS
   
   EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 820 PM
   UNTIL 400 AM CDT.
   
   HAIL TO 2.5 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 80
   MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 100
   STATUTE MILES EAST AND WEST OF A LINE FROM 20 MILES NORTHWEST OF
   ALVA OKLAHOMA TO 60 MILES SOUTH SOUTHWEST OF SHERMAN TEXAS.  FOR
   A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU2).
   
   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 397...WW 398...WW
   399...WW 400...WW 401...
   
   DISCUSSION...COMPLEX...LOOSELY-ORGANIZED MCS NOW EVOLVING OVER NW TX
   AND THE SE PART OF THE TX PANHANDLE EXPECTED TO MOVE/DEVELOP
   GENERALLY E OR ENE INTO N TX AND CNTRL OK LATER TONIGHT.  DIURNAL
   CIN INCREASE WILL FURTHER COMPLICATE AND POSSIBLY HINDER EWD STORM
   PROPAGATION.  BUT COMBINATION OF SUSTAINED...VERY MOIST ESELY LOW
   LVL FLOW /ESPECIALLY N OF STALLED FRONT OVER SRN OK/...MODERATE WLY
   MID LVL FLOW...AND VERY DEEP EML SUGGEST GOOD CHANCE FOR DMGG WET
   MICROBURSTS...SVR HAIL...AND POSSIBLY A BRIEF TORNADO OR TWO AS
   UPSCALE DEVELOPMENT CONTINUES.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2.5 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 600. MEAN STORM
   MOTION VECTOR 26025.
   
   
   ...CORFIDI
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