[LeArc] HWODVN@ 7/26/2003 5:59:35 AM

[learc@mailman.qth.net]

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


FLUS43 KDVN 261057
HWODVN
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-271000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
555 AM CDT SAT JUL 26 2003

THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN IOWA...
NORTHWEST AND WEST CENTRAL ILLINOIS...AND NORTHEAST MISSOURI.

.DAY ONE...TODAY AND TONIGHT...

A COLD FRONT PUSHING TOWARD AN INCREASINGLY WARM AND UNSTABLE 
AIRMASS OVER THE AREA WILL EVENTUALLY IGNITE THUNDERSTORMS. BUT A 
WARM WEDGE OF AIR ALOFT WILL ACT TO PUT A LID ON ANY STORM 
DEVELOPMENT TODAY...WITH STORMS POTENTIALLY NOT FIRING UNTIL LATER 
TONIGHT AFTER 10 PM AS THE FRONT AND BETTER FORCING PUSHES DOWN INTO 
THE AREA FROM THE NORTHWEST. STORMS MAY NOT MAKE IT TO SOUTH OF THE 
INTERSTATE 80 CORRIDOR TIL AFTER 1 AM CDT. THE LONGER THE STORMS GET 
HELD OFF FROM FORMING TONIGHT...THE LESS CHANCE THEY WILL BE OF 
BECOMING SEVERE. IF PREFRONTAL STORMS CAN FORM IN THE EVENING...THEY 
MAY HAVE THE POTENTIAL TO PRODUCE STRAIGHT LINE WINDS OF UP TO 65 
MPH...AND AN ISOLATED TORNADO IF THEY CAN MOVE ALONG AN OUTFLOW 
BOUNDARY. THE BEST CHANCE OF THIS EVENING ACTIVITY WOULD BE ALONG 
AND NORTH OF A CEDAR RAPIDS...TO A MOUNT CARROLL LINE FROM 6 PM TO 
11 PM. IF THE STORMS FORM CLOSER TO THE ARRIVAL OF THE COLD FRONT 
AFTER MIDNIGHT...THEY MAY ONLY BE ABLE TO PRODUCE GUSTY WINDS UP TO 
50 MPH. THE REST OF THE AREA WILL BE AT RISK OF THESE LATER NIGHT 
STORMS.

VERY WARM AND HUMID WEATHER WILL GET DRAWN UP OVER THE AREA AHEAD OF 
THE FRONT TODAY. DEWPOINTS CLIMBING INTO THE 70S AND TEMPERATURES 
RISING TO AROUND 90 DEGREES WILL CAUSE HEAT INDICES TO APPROACH THE 
100 DEGREE MARK THIS AFTERNOON.
 

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY...

THE COLD FRONT WILL GET LAID OUT ACROSS THE AREA IN A EAST-TO-WEST 
FASHION ON SUNDAY ALONG AND SOUTH OF THE INTERSTATE 80 CORRIDOR. 
WITH INCREASING NORTHWEST FLOW ALOFT ABLE TO USHER IN DISTURBANCES 
OVER THE BOUNDARY AS IT LINGERS OVER PORTIONS OF THE AREA...ROUNDS 
OF SHOWERS AND STORMS CAN BE EXPECTED ON SUNDAY. SOME STORMS ALONG 
AND SOUTH OF THE BOUNDARY MAY BECOME SEVERE OVER FAR SOUTHEAST IOWA 
AND WEST CENTRAL ILLINOIS. THE MAIN THREAT WOULD BE FROM DAMAGING 
WINDS...BUT SOME HAIL MAY ALSO OCCUR. LATEST INDICATIONS SUGGEST THE 
ATMOSPHERE WILL HAVE PLENTY OF MOISTURE FOR THE STORMS TO WRING 
OUT...AND LOCALLY HEAVY RAINFALL WILL BE A FACTOR. SOME LOCATIONS 
THAT RECEIVE REPEATED STORM ACTIVITY MAY RECEIVE UP TO 1 TO 2 INCHES 
OF RAINFALL BY SUNDAY EVENING. ANOTHER ROUND OF SUBSTANTIAL 
THUNDERSTORMS MAY OCCUR NEXT WEDNESDAY.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE NEEDED LATER TONIGHT. ACTIVATION MAY ALSO 
BE REQUIRED ON SUNDAY. 

MORE INFORMATION MAY BE OBTAINED AT THE FOLLOWING INTERNET WEB SITE:
HTTP://WWW.CRH.NOAA.GOV/DVN (ALL LOWER CASE)

$$

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