National Weather Service Raw Text Product

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WWUS20 KWNS 050403
SEL1  
SPC WW 050405
ILZ000-MOZ000-050900-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 241 
NWS STORM PREDICTION CENTER NORMAN OK 
1105 PM CDT SUN MAY 4 2003

THE NWS STORM PREDICTION CENTER HAS ISSUED A
SEVERE THUNDERSTORM WATCH FOR PORTIONS OF 

       CENTRAL ILLINOIS ILLINOIS
       EAST CENTRAL AND NORTHEAST MISSOURI

EFFECTIVE THIS SUNDAY NIGHT AND MONDAY MORNING FROM 1105 PM UNTIL
400 AM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 55
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 135 STATUTE MILES
EAST AND WEST OF A LINE FROM 25 MILES WEST NORTHWEST OF
SPRINGFIELD ILLINOIS TO 30 MILES SOUTHWEST OF SCOTT AFB ILLINOIS.

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.

OTHER WATCH INFORMATION...THIS SEVERE THUNDERSTORM WATCH REPLACES
SEVERE THUNDERSTORM WATCH NUMBER 235. WATCH NUMBER 235 WILL NOT BE
IN EFFECT AFTER 1105 PM CDT. CONTINUE...WW 237...WW 238...WW
239...WW 240...


DISCUSSION...SQUALL LINE ALONG COLD FRONT WILL CONTINUE ESEWD TOWARD
E CENTRAL MO AND W CENTRAL IL THROUGH THE EARLY MORNING HOURS. 
SLIGHTLY ELEVATED INSTABILITY WILL SUPPORT A THREAT OF LARGE
HAIL...THOUGH STORMS MAY BE ROOTED CLOSE ENOUGH TO THE GROUND TO
ALLOW A DAMAGING WIND THREAT AS WELL.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27035.


...THOMPSON

395,0873 381,0874 381,0924 395,0923