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Tornado Watch 234
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WW0234 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Moderate
Severe Hail 2"+ Hail
High High

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
   TORNADO WATCH NUMBER 234
   NWS STORM PREDICTION CENTER NORMAN OK
   710 PM CDT THU MAY 3 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHERN IOWA
          EXTREME WEST CENTRAL ILLINOIS
          EXTREME NORTHEAST KANSAS
          NORTHERN MISSOURI
   
   EFFECTIVE THIS THURSDAY NIGHT AND FRIDAY MORNING FROM 710 PM
   UNTIL 100 AM CDT.
   
   TORNADOES...HAIL TO 3 INCHES IN DIAMETER...THUNDERSTORM WIND
   GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE
   AREAS.
   
   THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 65 STATUTE
   MILES NORTH AND SOUTH OF A LINE FROM 50 MILES NORTH NORTHWEST OF
   SAINT JOSEPH MISSOURI TO 35 MILES SOUTHEAST OF BURLINGTON IOWA. 
   FOR A COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH
   OUTLINE UPDATE (WOUS64 KWNS WOU4).
   
   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 231...WW 232...WW 233...
   
   DISCUSSION...THUNDERSTORMS ARE EXPECTED TO INCREASE IN
   COVERAGE/INTENSITY THIS EVENING THROUGH EARLY TONIGHT ACROSS NRN
   MO/SRN IA AS LOW-LEVEL WAA INCREASES ALONG A DIFFUSE/REMNANT OUTFLOW
   BOUNDARY THAT IS DRIFTING NWD INTO IA.  00Z TOP SOUNDING IS
   REPRESENTATIVE OF THE STRONG INSTABILITY PRESENT ACROSS THE SRN/WRN
   PORTIONS OF THE WATCH AREA...AND VERTICAL SHEAR IS AT LEAST
   MARGINALLY FAVORABLE FOR SUPERCELLS WITH SOME RISK FOR A TORNADO OR
   TWO.  OTHERWISE...VERY LARGE HAIL WILL BE POSSIBLE WITH THE MORE
   DISCRETE STORMS IN THE NEXT FEW HOURS...WHILE THE RISK FOR DAMAGING
   WINDS WILL INCREASE AS STORMS MERGE AND GROW UPSCALE INTO
   BANDS/CLUSTERS TONIGHT.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   550. MEAN STORM MOTION VECTOR 27025.
   
   
   ...THOMPSON
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