[LeArc] Weather Watch : 7@ 7/9/2003 8:19:46 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 100118
SEL7  
SPC WW 100120
IAZ000-ILZ000-INZ000-MOZ000-100700-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 707 
NWS STORM PREDICTION CENTER NORMAN OK 
820 PM CDT WED JUL 9 2003

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

       EASTERN IOWA
       CENTRAL AND NORTHERN ILLINOIS
       CENTRAL AND SOUTHERN INDIANA
       NORTHEAST MISSOURI

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 820 PM
UNTIL 200 AM 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
NORTH AND SOUTH OF A LINE FROM 60 MILES WEST OF BURLINGTON IOWA TO
50 MILES EAST SOUTHEAST OF INDIANAPOLIS INDIANA.

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...THIS SEVERE THUNDERSTORM WATCH REPLACES
TORNADO WATCH NUMBER 700...SEVERE THUNDERSTORM WATCH NUMBER
701...TORNADO WATCH NUMBER 704...SEVERE THUNDERSTORM WATCH NUMBER
705. WATCH NUMBER 700 701 704 705 WILL NOT BE IN EFFECT AFTER 820
PM CDT. CONTINUE...WW 702...WW 703...WW 706...


DISCUSSION...THUNDERSTORMS/EMBEDDED SUPERCELLS EXPECTED TO PERSIST
THROUGH LATE EVENING INVOF SLOWLY RETREATING OUTFLOW BOUNDARY/WARM
FRONT OVER THE MID MS VLY.  CONTINUED SEWD MOTION OF MN UPPER VORT
EXPECTED TO RESULT IN GRADUALLY DECREASING DEEP DIRECTIONAL SHEAR
OVER WW REGION...BUT INSTABILITY/SHEAR COMBINATION WILL REMAIN
SUPPORTIVE OF BOWING SEGMENTS WITH HAIL/WIND AND POSSIBLY AN
ISOLATED TORNADO.

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 550. MEAN STORM
MOTION VECTOR 27025.


...CORFIDI

;415,0921 403,0852 382,0852 394,0921; 

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