WWUS20 KWNS 201630

SEL3

SPC WW 201630

INZ000-KYZ000-202200-



URGENT - IMMEDIATE BROADCAST REQUESTED

TORNADO WATCH NUMBER 693

STORM PREDICTION CENTER NORMAN OK

1130 AM CDT FRI SEP 20 2002



THE STORM PREDICTION CENTER HAS ISSUED A

TORNADO WATCH FOR PORTIONS OF



   SOUTHERN INDIANA

   WESTERN KENTUCKY



EFFECTIVE THIS FRIDAY MORNING AND AFTERNOON FROM 1130 AM UNTIL 500

PM CDT.



TORNADOES...HAIL TO 1 INCH IN DIAMETER...THUNDERSTORM WIND GUSTS TO

70 MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.



THE TORNADO WATCH AREA IS ALONG AND 65 STATUTE MILES EAST AND WEST

OF A LINE FROM 5 MILES EAST OF CLARKSVILLE TENNESSEE TO 50 MILES

NORTHEAST OF BLOOMINGTON INDIANA.



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.





DISCUSSION...UPPER TROUGH AND ASSOCIATED WAVE ON COLD FRONT WILL

MOVE NEWD ACROSS LOWER OH VALLEY THIS AFTERNOON.  STRONG SHEAR

PROFILES IN ADVANCE OF FRONT WITH VERY MOIST/UNSTABLE AIRMASS.

THUNDERSTORMS EXPECTED TO RAPIDLY INTENSIFY ALONG/AHEAD OF FRONT

WITH STORMS DEVELOPING INTO LINES/SMALL BOWS.  ADDITIONALLY

ISOLATED SUPERCELLS ARE LIKELY AHEAD OF LINES ENHANCING TORNADO

POTENTIAL.





AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL

SURFACE AND ALOFT TO 1 INCH...EXTREME TURBULENCE AND SURFACE WIND

GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 550.

MEAN STORM MOTION VECTOR 22040.





..HALES



;393,0844 363,0860 363,0883 393,0871;