[LeArc] Weather Watch : 6@ 5/8/2003 3:37:35 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 082037
SEL6  
SPC WW 082040
ILZ000-INZ000-KYZ000-090200-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 306 
NWS STORM PREDICTION CENTER NORMAN OK 
440 PM EDT THU MAY 8 2003

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

       SOUTHERN AND CENTRAL ILLINOIS
       SOUTHWEST INDIANA
       EXTREME NORTHWEST KENTUCKY

EFFECTIVE THIS THURSDAY AFTERNOON AND EVENING FROM 440 PM UNTIL
1000 PM EDT.

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 105 STATUTE MILES EAST AND
WEST OF A LINE FROM 5 MILES NORTH NORTHWEST OF PEORIA ILLINOIS TO
65 MILES SOUTHWEST 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.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES SEVERE
THUNDERSTORM WATCH NUMBER 302. WATCH NUMBER 302 WILL NOT BE IN
EFFECT AFTER 440 PM EDT. CONTINUE...WW 300...WW 301...WW 303...WW
304...WW 305...


DISCUSSION...SEVERE THUNDERSTORMS WILL CONTINUE TO SPREAD EWD ALONG
CONVERGENCE ALOFT. AIR MASS ABOVE THE BOUNDARY LAYER IS MODERATELY
UNSTABLE AND 50 KT DEEP LAYER SHEAR IS FAVORABLE FOR SUPERCELLS.
DAMAGING WINDS AND LARGE HAIL ARE THE MAIN THREAT...ESPECIALLY
CONSIDERING THE STORMS ARE SLIGHTLY ELEVATED. HOWEVER...THE BOUNDARY
LAYER DEPTH IS DECREASING AND MAY BE FAVORABLE FOR A FEW TORNADOES. 




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 550.
MEAN STORM MOTION VECTOR 27035.


...IMY

;404,0874 382,0853 382,0892 404,0914; 

WWWW