Tornado Watch 693

Issued

Sep 20, 2002, 11:30 AM EST (16:30 UTC)

Expired

Sep 20, 2002, 5:00 PM EST

In force

6 hr

Issued by

the Storm Prediction Center

000 
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

Tornado Watches in Indiana, 2002Tornado Watches in Kentucky, 2002Every tornado watch in 2002

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.