[LeArc] Weather Watch : 9@ 4/20/2003 1:47:32 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 201847
SEL9  
SPC WW 201845
ILZ000-KYZ000-TNZ000-210000-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 139
STORM PREDICTION CENTER NORMAN OK
145 PM CDT SUN APR 20 2003

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

   EXTREME SOUTHEASTERN ILLINOIS                           
   WESTERN KENTUCKY                           
   WESTERN AND MIDDLE TENNESSEE                          

EFFECTIVE THIS SUNDAY AFTERNOON AND EVENING FROM 145 PM UNTIL 700
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 75 STATUTE MILES
EAST AND WEST OF A LINE FROM 40 MILES SOUTH OF JACKSON TENNESSEE TO
15 MILES NORTH NORTHWEST OF OWENSBORO KENTUCKY.

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 138...

DISCUSSION...TSTMS EXPECTED TO INCREASE IN COVERAGE/INTENSITY
THROUGH REMAINDER EARLY-MID AFTERNOON -- ALONG FRONT AND INVOF
PREFRONTAL CONVECTIVE ROLLS -- WITH POTENTIAL FOR WIND DAMAGE AND
OCCASIONAL LARGE HAIL.  AIR MASS CONTINUING TO DESTABILIZE ACROSS
REGION WITH ROUGHLY 1500 J/KG MLCAPE ANTICIPATED...AMIDST NEARLY
UNIDIRECTIONAL WIND PROFILES.

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 450.  MEAN STORM
MOTION VECTOR 25035.

...EDWARDS/THOMPSON

;375,0855 350,0873 350,0901 375,0883;

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