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Particularly Dangerous Situation (PDS) Tornado Watch 461
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WW0461 Radar
Note:  The expiration time in the watch graphic is amended if the watch is replaced, cancelled or extended.
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   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 461
   NWS STORM PREDICTION CENTER NORMAN OK
   1055 AM CDT THU JUN 5 2008
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          WESTERN IOWA
          NORTH CENTRAL KANSAS
          CENTRAL AND EASTERN NEBRASKA
          EXTREME SOUTHEAST SOUTH DAKOTA
   
   EFFECTIVE THIS THURSDAY MORNING AND EVENING FROM 1055 AM UNTIL
   700 PM CDT.
   
   ...THIS IS A PARTICULARLY DANGEROUS SITUATION...
   
   DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
   THUNDERSTORM WIND GUSTS TO 80 MPH...AND DANGEROUS LIGHTNING ARE
   POSSIBLE IN THESE AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 115 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 20 MILES SOUTH SOUTHWEST OF
   BROKEN BOW NEBRASKA TO 25 MILES EAST SOUTHEAST OF DENISON IOWA. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU1).
   
   REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
   TORNADOES AND 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.
   
   OTHER WATCH INFORMATION...CONTINUE...WW 458...WW 459...WW 460...
   
   DISCUSSION...SCATTERED TO NUMEROUS SEVERE THUNDERSTORMS ARE EXPECTED
   TO DEVELOP THROUGH THE EARLY-MID AFTERNOON HOURS ACROSS PORTIONS OF
   EASTERN NEB...SPREADING INTO WESTERN IA AND SOUTHEAST SD.  STRONG
   LOW LEVEL VERTICAL SHEAR PROFILES...AMPLE MOISTURE/INSTABILITY...AND
   PRESENCE OF MULTIPLE SURFACE BOUNDARIES WILL POSE A RISK OF
   SUPERCELLS CAPABLE OF STRONG TORNADOES.  VERY LARGE HAIL AND
   DAMAGING WINDS WILL ALSO BE A CONCERN.
   
   AVIATION...TORNADOES AND 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
   500. MEAN STORM MOTION VECTOR 24040.
   
   
   ...HART
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Page last modified: June 05, 2008
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