[LeArc] Weather Watch : 7@ 6/10/2003 6:35:49 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 102335
SEL7  
SPC WW 102335
ILZ000-INZ000-KYZ000-110400-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 507 
NWS STORM PREDICTION CENTER NORMAN OK 
635 PM CDT TUE JUN 10 2003

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

       SOUTHERN ILLINOIS
       EXTREME SOUTHWEST INDIANA
       NORTHWEST KENTUCKY

EFFECTIVE THIS TUESDAY EVENING FROM 635 PM UNTIL 1100 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 65 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 30 MILES EAST NORTHEAST OF
EVANSVILLE INDIANA TO 35 MILES WEST OF MOUNT VERNON 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 504...WW 505...WW 506...


DISCUSSION...WELL-DEVELOPED MCS WILL CONTINUE EWD ACROSS SRN IL
TOWARD NW KY/SW INDIANA THE NEXT FEW HOURS.  THE LOW-LEVEL AIR MASS
IS GRADUALLY RECOVERING FROM EARLIER CONVECTION ACROSS THIS
AREA...AND INSTABILITY MAY BE SUFFICIENT TO SUPPORT SEVERE STORMS
FOR A FEW MORE HOURS.  DAMAGING WINDS SHOULD BE THE MAIN SEVERE
THREAT...WITH MORE ISOLATED LARGE HAIL ALSO POSSIBLE WITH THE MOST
INTENSE UPDRAFTS NEAR THE BOW ECHO COMMA HEAD.

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 550. MEAN STORM
MOTION VECTOR 27040.


...THOMPSON

;371,0870 372,0893 391,0893 390,0870; 

WWWW