Tornado Watch 404

Issued

May 23, 1998, 7:45 PM CDT (00:45 UTC)

Expired

May 24, 1998, 1:00 AM CDT

In force

5 hr

Issued by

the Storm Prediction Center

292 
WWUS9 KMKC 240022
SEL4  
MKC WW 240022
KYZ000-ILZ000-INZ000-240600-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 404
STORM PREDICTION CENTER NORMAN OK
722 PM CDT SAT MAY 23 1998

THE STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

   NORTHERN AND WESTERN KENTUCKY                           
   SOUTHEAST ILLINOIS                           
   SOUTHERN INDIANA                            

EFFECTIVE THIS SATURDAY NIGHT AND SUNDAY MORNING FROM 745 PM UNTIL
100 AM CDT.

TORNADOES...HAIL TO 2 INCHES 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 NORTH AND
SOUTH OF A LINE FROM 75 MILES WEST NORTHWEST OF EVANSVILLE INDIANA
TO 50 MILES EAST SOUTHEAST OF LOUISVILLE KENTUCKY.

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 401...WW 402...WW 403...

DISCUSSION...CHANCE FOR SUPERCELLS AND ISOLATED TORNADOES THIS
EVENING AS TAIL END OF CONVECTIVE SYSTEM NOW OVER SW IL CONTINUES
E ALONG STALLED FRONT OVER THE LOWER OH VALLEY.  PRESENT 0-6 KM
SHEAR OVER REGION /PER PAH VWP/ SUFFICENT TO SUPPORT SUPERCELLS
...WITH 20 KT WSWLY 700 MB FLOW VEERING SLIGHTLY AN INCREASING TO
MORE THAN 50 KTS AT 500 MB.  MID LEVEL SPEED MAX EXPECTED TO
CONTINUE ENE ACROSS WATCH REGION THIS EVENING...WITH LOW-LEVEL
VEERING ENHANCED ALONG STALLED FRONT EXTENDING EWD TO NEAR
LOUISVILLE.  SURFACE DEWPOINTS S OF FRONT ARE IN THE LOW 70S
...YIELDING CAPE AROUND 2500 J/KG.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 2 INCHES.  EXTREME TURBULENCE AND SURFACE WIND
GUSTS TO 60 KNOTS.  A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 520. 
MEAN STORM MOTION VECTOR 26035.

...CORFIDI

392,0884 385,0845 365,0845 373,0884

Tornado Watches in Kentucky, 1998Tornado Watches in Indiana, 1998Tornado Watches in Illinois, 1998Every tornado watch in 1998

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.