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Tornado Watch 721
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WW0721 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood High Moderate
Severe Wind 65 kt+ Wind
High Moderate
Severe Hail 2"+ Hail
Low Very 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.
   SEL1
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 721
   NWS STORM PREDICTION CENTER NORMAN OK
   405 AM CDT TUE OCT 26 2010
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          SOUTHWEST THROUGH NORTHEASTERN ARKANSAS
          SOUTHERN ILLINOIS
          SOUTHWEST INDIANA
          WESTERN KENTUCKY
          SOUTHEASTERN MISSOURI
          NORTHERN MISSISSIPPI
          WESTERN AND MIDDLE TENNESSEE
   
   EFFECTIVE THIS TUESDAY MORNING FROM 405 AM UNTIL NOON CDT.
   
   TORNADOES...HAIL TO 1.5 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 EAST AND WEST OF A LINE FROM 40 MILES EAST NORTHEAST OF
   MOUNT VERNON ILLINOIS TO 30 MILES SOUTH SOUTHEAST OF PINE BLUFF
   ARKANSAS.  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 719...WW 720...
   
   DISCUSSION...TSTMS EXPECTED TO SLOWLY INCREASE ALONG AR/SRN MO COLD
   FRONT THROUGH LATER THIS MORNING AS FRONT CONTINUES ESE INTO WRN
   PARTS OF KY/TN AND NW MS.  DEEP FORCING FOR ASCENT WILL BE WEAKER
   COMPARED TO AREAS FARTHER N.  BUT COMBINATION OF LOW LVL FORCED
   UPLIFT ALONG FRONT AND INCREASINGLY RICH MOISTURE /PW 1.25-1.50
   INCHES/ SUGGESTS AN INCREASING LIKELIHOOD THAT EXISTING CINH WILL BE
   OVERCOME AS POWERFUL NRN MO/IA UPR TROUGH GLANCES WATCH AREA.  THIS
   SHOULD LEAD TO A BROKEN BAND OR TWO OF STORMS LATER THIS MORNING
   FROM SE MO AND THE AR/MS DELTA REGION INTO WRN TN/WRN KY.  GIVEN
   SUSTAINED UPDRAFTS...WIND FIELD WILL BE FAVORABLE FOR SUPERCELLS
   POSING A RISK FOR BOTH TORNADOES AND SMALL BOWS WITH DMGG WIND.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 70 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   450. MEAN STORM MOTION VECTOR 24050.
   
   
   ...CORFIDI
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Page last modified: October 26, 2010
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