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Severe Thunderstorm Watch 619
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WW0619 Radar
Hazard Tornadoes EF2+ Tornadoes
Likelihood Low Very Low
Severe Wind 65 kt+ Wind
High Low
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.
   SEL9
   
   URGENT - IMMEDIATE BROADCAST REQUESTED
   SEVERE THUNDERSTORM WATCH NUMBER 619
   NWS STORM PREDICTION CENTER NORMAN OK
   940 AM CDT WED SEP 5 2012
   
   THE NWS STORM PREDICTION CENTER HAS ISSUED A
   SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 
   
          CENTRAL AND EASTERN ILLINOIS
          CENTRAL AND SOUTHERN INDIANA
          NORTHERN KENTUCKY
   
   EFFECTIVE THIS WEDNESDAY MORNING AND AFTERNOON FROM 940 AM UNTIL
   500 PM CDT.
   
   HAIL TO 1.5 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 90
   STATUTE MILES EAST AND WEST OF A LINE FROM 45 MILES NORTH OF
   INDIANAPOLIS INDIANA TO 40 MILES WEST SOUTHWEST OF EVANSVILLE
   INDIANA.  FOR A COMPLETE DEPICTION OF THE WATCH SEE THE
   ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU9).
   
   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.
   
   DISCUSSION...BROKEN SQLN IN S CNTRL IL EXPECTED TO CONTINUE
   GENERALLY E OR ESE ACROSS THE REMAINDER OF IL AND INTO PARTS OF
   IND/KY LATER TODAY.  ACTIVITY IS...IN PART...LIKELY SUPPORTED BY AN
   IMPULSE IN THE SRN STREAM JET /EXTENDING ROUGHLY W-E THROUGH CNTRL
   PARTS OF KS-MO/. THE SQLN MAY BE ENHANCED LATER THIS MORNING BY
   STRONG SFC HEATING AND LIGHT SSELY LOW-LVL FLOW TO ITS EAST.  WHILE
   AREA WIND PROFILES APPEAR SOMEWHAT DISORGANIZED ATTM...WIND FIELD
   EXPECTED TO BECOME MORE FAVORABLE FOR FORWARD-PROPAGATION BY MIDDAY.
   COUPLED WITH RELATIVELY STEEP MID LVL LAPSE RATES AND AMPLE LOW-LVL
   MOISTURE...SETUP MAY YIELD BOTH DMGG WIND AND SVR HAIL.
   
   AVIATION...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 28030.
   
   
   ...CORFIDI
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Page last modified: September 05, 2012
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