[LeArc] Weather Watch : 7@ 8/1/2003 3:21:42 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 012019
SEL7  
SPC WW 012020
ILZ000-KYZ000-MOZ000-020200-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 827 
NWS STORM PREDICTION CENTER NORMAN OK 
320 PM CDT FRI AUG 1 2003

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

       SOUTHERN ILLINOIS
       EXTREME WESTERN KENTUCKY
       SOUTHEAST MISSOURI

EFFECTIVE THIS FRIDAY AFTERNOON AND EVENING FROM 320 PM UNTIL 900
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 60 STATUTE MILES
NORTH AND SOUTH OF A LINE FROM 50 MILES NORTHWEST OF POPLAR BLUFF
MISSOURI TO 50 MILES SOUTHEAST 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 824...WW 825...WW 826...


DISCUSSION...STORMS CONTINUE TO INTENSIFY ALONG CONVECTIVE BOUNDARY
MOVING SEWD INTO THE REGION.  AIR MASS IS VERY UNSTABLE WITH MLCAPE
TO 2500 J/KG.  RUC PFC SOUNDINGS SHOW STEEP LAPSE RATES AROUND 7C/KM
ACROSS AREA FAVORABLE FOR DAMAGING WINDS AND HAIL.

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 28035.


...MCCARTHY

;380,0910 383,0881 365,0881 362,0910; 

WWWW