[LeArc] Weather Watch : 4@ 8/3/2003 2:21:01 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 031919
SEL4  
SPC WW 031920
ILZ000-INZ000-KYZ000-MOZ000-TNZ000-040100-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 834 
NWS STORM PREDICTION CENTER NORMAN OK 
220 PM CDT SUN AUG 3 2003

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

       SOUTHERN ILLINOIS
       EXTREME SOUTHWEST INDIANA
       EXTREME WESTERN KENTUCKY
       SOUTHEAST MISSOURI
       WESTERN TENNESSEE

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 220 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 70 STATUTE MILES
EAST AND WEST OF A LINE FROM 15 MILES SOUTHEAST OF DYERSBURG
TENNESSEE TO 35 MILES NORTH OF SALEM 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.




DISCUSSION...COMBINATION OF WEAK COLD FRONT MOVING EWD ACROSS
EASTERN MO AND CONVECTIVE OUTFLOW BOUNDARY MOVING NORTHEAST FROM AR
WILL INTERACT TO FORM ORGANIZED SEVERE STORMS OVER SRN IL/SERN MO
NEXT SEVERAL HOURS.  STRONG THETA-E ADVECTION WITH MLCAPE TO 2000
J/KG /200 J/KG IN LOWEST 3KM/ IS EXPECTED TO AID IN PRODUCING LARGE
HAIL AND DAMAGING WINDS.

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

;355,0902 390,0901 390,0873 355,0875; 

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