[LeArc] Weather Watch : 3@ 6/10/2003 7:28:04 AM

[learc@mailman.qth.net]

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


WWUS20 KWNS 101227
SEL3  
SPC WW 101215
ILZ000-KYZ000-MOZ000-101800-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 503 
NWS STORM PREDICTION CENTER NORMAN OK 
715 AM CDT TUE JUN 10 2003

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

       SOUTHERN ILLINOIS
       WESTERN KENTUCKY
       CENTRAL AND SOUTHERN MISSOURI

EFFECTIVE THIS TUESDAY MORNING AND AFTERNOON FROM 715 AM UNTIL 100
PM CDT.

HAIL TO 2 INCHES IN DIAMETER...THUNDERSTORM WIND GUSTS TO 55
MPH...AND DANGEROUS LIGHTNING ARE POSSIBLE IN THESE AREAS.

THE SEVERE THUNDERSTORM WATCH AREA IS ALONG AND 180 STATUTE MILES
EAST AND WEST OF A LINE FROM 45 MILES NORTHEAST OF VICHY MISSOURI
TO 30 MILES EAST SOUTHEAST OF WEST PLAINS MISSOURI.

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...OUTFLOW BOUNDARY FROM OVERNIGHT NRN MO MCS EXPECTED TO
BECOME STATIONARY W/E ACROSS SRN PART OF STATE...WHILE ERN PORTION
CONTINUES SE ACROSS SRN IL. MORNING RAOBS SHOW SLIGHTLY ELEVATED
SWLY LOW LEVEL JET TRANSPORTING VERY WARM/MOIST AIR INTO REGION
ALONG AND ABOVE BOUNDARY.  GIVEN 30+ KT DEEP SHEAR AND SHARP
INCREASE IN SURFACE-BASED INSTABILITY EXPECTED AS HEATING ERODES
SHALLOW SURFACE INVERSION LATER TODAY...POTENTIAL WILL INCREASE FOR
BOTH STRONG MULTICELLS WITH HAIL...AND SUPERCELLS WITH HAIL/HIGH
WINDS.

AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT
TO 2 INCHES. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 50
KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO 500. MEAN STORM
MOTION VECTOR 27030.


...CORFIDI

;383,0875 363,0880 363,0943 383,0943; 
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