[LeArc] Weather Watch : 8@ 5/6/2003 10:25:52 AM

Tue, 06 May 2003 10:25:52 -0500

The following weather message is provided by McDonough County E.S.D.A.

WWUS20 KWNS 061526
SEL8  
SPC WW 061530
ILZ000-INZ000-MOZ000-062100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 268 
NWS STORM PREDICTION CENTER NORMAN OK 
1030 AM CDT TUE MAY 6 2003

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

       SOUTHERN ILLINOIS
       SOUTHWESTERN INDIANA
       EAST CENTRAL MISSOURI

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 1030 AM UNTIL
400 PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 70
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 145 STATUTE MILES
EITHER SIDE OF A LINE FROM 20 MILES EAST NORTHEAST OF ALTON
ILLINOIS TO 20 MILES SOUTHWEST OF CARBONDALE 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...CONTINUE...WW 263...WW 264...WW 265...WW
266...WW 267...WW 268...

DISCUSSION...SURFACE FRONT NOW EXTENDING FROM SRN IND INTO CENTRAL
MO WILL LIKELY CONTINUE TO FOCUS SEVERE THUNDERSTORM DEVELOPMENT
THIS AFTERNOON. DEEP LAYER SHEAR PROFILES REMAIN FAVORABLE FOR
SUPERCELLS...THOUGH LOW LEVEL SHEAR IS FAIRLY WEAK.  LARGE HAIL AND
DAMAGING WINDS ARE EXPECTED TO BE PRIMARY THREATS.

AVIATION...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 500. MEAN STORM
MOTION VECTOR 26025.

...EVANS

;391,0870 375,0865 371,0920 383,0922; 
WWWW