[LeArc] Weather Watch : 4@ 8/1/2003 2:00:05 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 011858
SEL4  
SPC WW 011900
IAZ000-ILZ000-INZ000-MOZ000-020100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 824 
NWS STORM PREDICTION CENTER NORMAN OK 
200 PM CDT FRI AUG 1 2003

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

       SOUTHEAST IOWA
       NORTHERN AND CENTRAL ILLINOIS
       EXTREME NORTHWEST INDIANA
       EXTREME NORTHEAST MISSOURI

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 200 PM UNTIL 800
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
EITHER SIDE OF A LINE FROM 25 MILES WEST NORTHWEST OF QUINCY
ILLINOIS TO 45 MILES NORTHEAST OF MARSEILLES 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 823...


DISCUSSION...STORMS CONTINUE TO INTENSIFY ALONG NRN PERIPHERY OF
CONVECTIVE BOUNDARY THAT EXTENDS SEWD/SWD THROUGH ERN MO.  ACTIVITY
IS MOVING THROUGH THETA-E AXIS WHERE AIR MASS HAS MLCAPE VALUES OF
2000-2500 J/KG.

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 26035.


...MCCARTHY

;405,0920 424,0883 405,0873 391,0910; 

WWWW