[LeArc] Weather Watch : 9@ 6/25/2003 12:07:59 PM

[learc@mailman.qth.net]

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


WWUS20 KWNS 251707
SEL9  
SPC WW 251705
IAZ000-ILZ000-MOZ000-WIZ000-LMZ000-252300-

URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 589 
NWS STORM PREDICTION CENTER NORMAN OK 
1205 PM CDT WED JUN 25 2003

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

       EASTERN IOWA
       NORTHERN AND WESTERN ILLINOIS
       EXTREME NORTHEAST MISSOURI
       SOUTHERN AND CENTRAL WISCONSIN
       LAKE MICHIGAN

EFFECTIVE THIS WEDNESDAY AFTERNOON AND EVENING FROM 1205 PM UNTIL
600 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 85 STATUTE MILES
EAST AND WEST OF A LINE FROM 35 MILES SOUTH OF OTTUMWA IOWA TO 60
MILES NORTH NORTHEAST OF MADISON WISCONSIN.

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...MCS OVER CNTRL/ERN IA EXPECTED TO INTENSIFY AS IT MOVES
INTO STRONGLY HEATED REGION NEAR THE MS RVR LATER TODAY.  MODERATE
UNIDIRECTIONAL SW FLOW...VERY MOIST BOUNDARY LAYER INFLOW AND
EXISTING SUBSYNOPTIC LOWS ALONG LEADING EDGE OF MCS EXPECTED TO
COMPENSATE FOR RELATIVELY WARM MID LEVEL TEMPERATURES TO SUPPORT
BOWING STRUCTURES WITH HIGH WIND AND SOME 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 550. MEAN STORM
MOTION VECTOR 23030.


...CORFIDI

;403,0940 435,0903 435,0870 403,0904; 

WWWW