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Severe Thunderstorm Watch 653
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WW0653 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
Moderate 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.
   SEL3
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 653
   NWS STORM PREDICTION CENTER NORMAN OK
   110 AM CDT TUE AUG 4 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          EXTREME SOUTHWEST IOWA
          NORTH CENTRAL AND NORTHEAST KANSAS
          EXTREME NORTHWEST MISSOURI
          SOUTH CENTRAL AND SOUTHEAST NEBRASKA
   
   EFFECTIVE THIS TUESDAY MORNING FROM 110 AM UNTIL 700 AM CDT.
   
   HAIL TO 2 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 50
   STATUTE MILES NORTH AND SOUTH OF A LINE FROM 40 MILES WEST OF
   KEARNEY NEBRASKA TO 30 MILES EAST OF FALLS CITY NEBRASKA.  FOR A
   COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
   UPDATE (WOUS64 KWNS WOU3).
   
   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 652...
   
   DISCUSSION...TWO MODES OF CONVECTION SHOULD PERSIST OVERNIGHT...WITH
   ELEVATED STORMS DRIVEN BY WAA OVER SE NEB/NE KS/NW MO...AND AN MCS
   WITH ASSOCIATED COLD POOL WHICH SHOULD CONTINUE ESEWD FROM
   CENTRAL/SRN NEB.  THE WAA STORMS WILL POSE A THREAT FOR LARGE
   HAIL...WHILE BOTH DAMAGING WINDS AND LARGE HAIL WILL BE POSSIBLE
   WITH THE STORMS MOVING ESEWD ACROSS NEB.  THE CAP STRENGTH IS OF
   SOME CONCERN...BUT A RESERVOIR OF STRONG INSTABILITY REMAINS ALONG
   THE NEB/KS BORDER REGION IN PROXIMITY TO A STALLED BOUNDARY...THUS
   THE SEVERE STORM THREAT COULD PERSIST OVERNIGHT.
   
   AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
   TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60
   KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM
   MOTION VECTOR 28025.
   
   
   ...THOMPSON
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