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Tornado Watch 109
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WW0109 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Moderate Low
Severe Wind 65 kt+ Wind
Moderate Low
Severe Hail 2"+ Hail
Moderate 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.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   TORNADO WATCH NUMBER 109
   NWS STORM PREDICTION CENTER NORMAN OK
   240 PM CDT THU APR 2 2009
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   TORNADO WATCH FOR PORTIONS OF 
   
          EXTREME SOUTHEAST ILLINOIS
          SOUTHWEST INDIANA
          WESTERN AND CENTRAL KENTUCKY
          NORTHERN MIDDLE TENNESSEE
   
   EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 240 PM UNTIL
   800 PM CDT.
   
   TORNADOES...HAIL TO 1.5 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 60 STATUTE
   MILES EAST AND WEST OF A LINE FROM 5 MILES WEST NORTHWEST OF
   EVANSVILLE INDIANA TO 15 MILES SOUTH SOUTHWEST OF NASHVILLE
   TENNESSEE.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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 105...WW 106...WW
   107...WW 108...
   
   DISCUSSION...SCATTERED THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS
   AFTERNOON FROM MIDDLE TN NWD INTO WRN KY IN ADVANCE OF A LEAD
   SHORTWAVE TROUGH EJECTING NEWD FROM THE LOWER MS VALLEY.  THE HPX
   VWP SHOWS FAVORABLE HODOGRAPH CURVATURE AND DEEP LAYER SHEAR FOR
   SUPERCELLS...WHILE INSTABILITY AND MOISTURE ARE AT LEAST SUFFICIENT
   FOR A TORNADO OR TWO.  OTHERWISE...LARGE HAIL AND A FEW DAMAGING
   GUSTS WILL BE THE MAIN SEVERE THREATS ALONG AND S OF THE PRIMARY
   BAROCLINIC ZONE NEAR THE OH RIVER.
   
   AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
   SURFACE AND ALOFT TO 1.5 INCHES. EXTREME TURBULENCE AND SURFACE
   WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
   500. MEAN STORM MOTION VECTOR 24035.
   
   
   ...THOMPSON
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Page last modified: April 03, 2009
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