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Particularly Dangerous Situation (PDS) Severe Thunderstorm Watch 264
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WW0264 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Low
Severe Wind 65 kt+ Wind
High High
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.
   SEL4
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 264
   NWS STORM PREDICTION CENTER NORMAN OK
   1205 AM CDT FRI MAY 8 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          A LARGE PART OF KANSAS
          NORTHERN OKLAHOMA
   
   EFFECTIVE THIS FRIDAY MORNING FROM 1205 AM UNTIL 800 AM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   EXTREMELY DAMAGING THUNDERSTORM WIND GUSTS TO 80 MPH...LARGE HAIL
   TO 3 INCHES IN DIAMETER...AND DANGEROUS LIGHTNING ARE POSSIBLE IN
   THESE AREAS.
   
   THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 80
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 55 MILES WEST OF
   GARDEN CITY KANSAS TO 25 MILES EAST SOUTHEAST OF CHANUTE KANSAS. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 260...WW 261...WW
   262...WW 263...
   
   DISCUSSION...TSTMS/SUPERCELLS EXPECTED TO FORM IN THE NEXT 1-2 HOURS
   IN WAA AREA ALONG SRN FRINGE OF UPR DISTURBANCE AMPLIFYING ESE
   ACROSS THE CNTRL HI PLNS.  COMBINATION OF INCREASINGLY RICH MOIST
   INFLOW...DEEP EML...AND SEASONABLY STRONG/LARGELY UNIDIRECTIONAL WLY
   MID/UPR LVL FLOW SHOULD SUPPORT RAPID STORM INTENSIFICATION ONCE
   CELLS FORM.  ALTHOUGH A RISK FOR ISOLD TORNADOES WILL EXIST DURING
   EARLY STAGES OF STORM DEVELOPMENT...SFC-BASED CIN AND LIKELIHOOD FOR
   NUMEROUS STORM INTERACTIONS ONCE ACTIVITY DEVELOPS SUGGEST THAT MAIN
   SVR THREAT EARLY-ON WILL BE VERY LARGE HAIL.  SIZABLE DCAPE SHOULD
   FOSTER SUBSEQUENT EVOLUTION INTO A FORWARD-PROPGATING MCS...WITH
   FAIRLY WIDESPREAD DMGG WIND/HAIL.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 3 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 70
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 29035.
   
   
   ...CORFIDI
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Page last modified: May 08, 2009
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