

000 

WWUS20 KWNS 102202

SEL3

SPC WW 102202

ILZ000-INZ000-KYZ000-MOZ000-MSZ000-TNZ000-110400-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 193

NWS STORM PREDICTION CENTER NORMAN OK

505 PM CDT THU APR 10 2008



THE NWS STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



       SOUTHERN ILLINOIS

       SOUTHWEST INDIANA

       WESTERN KENTUCKY

       EXTREME SOUTHEAST MISSOURI

       NORTHERN MISSISSIPPI

       WESTERN TENNESSEE



EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 505 PM UNTIL

1100 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 35 MILES NORTH OF EVANSVILLE

INDIANA TO 10 MILES SOUTHWEST OF GREENWOOD MISSISSIPPI.  FOR A

COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE

UPDATE (WOUS64 KWNS WOU3).



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 190...WW 191...WW 192...



DISCUSSION...LINE OF STORMS ALONG THE MS RIVER WILL TRACK EASTWARD

THIS EVENING ACROSS THE WATCH AREA.  INCREASING LARGE SCALE FORCING

MAY WEAKEN CAPPING INVERSION SUFFICIENTLY TO AID IN CONVECTIVE

INTENSIFICATION AND SCATTERED SEVERE STORMS.  EXTREMELY STRONG LOW

LEVEL VERTICAL SHEAR AND AMPLE INSTABILITY SUGGEST THE POTENTIAL FOR

TORNADOES...ALONG WITH LARGE HAIL AND DAMAGING WINDS IN STRONGER

STORMS.



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

450. MEAN STORM MOTION VECTOR 22035.





...HART

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