[LeArc] HWODVN@ 7/7/2003 5:20:06 AM

[learc@mailman.qth.net]

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


FLUS43 KDVN 071015
HWODVN
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-007-009-
015-016-024>026-034-035-MOZ009-010-081015-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE QUAD CITIES IA IL
515 AM CDT MON JUL 7 2003

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

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

ON-GOING STRONG TO SEVERE THUNDERSTORMS MAINLY NORTH OF HIGHWAY 30 
WILL DISSIPATE SHORTLY AFTER SUNRISE. THE MAIN THREAT FROM THESE 
STORMS WILL BE HAIL UP TO 1 INCH IN DIAMETER...WIND GUSTS OVER 
60 MPH AND VERY HEAVY RAINFALL. THUNDERSTORMS WILL REDEVELOP LATER 
TODAY AS AN UPPER LEVEL IMPULSE MOVES EAST ALONG THE IOWA AND 
MINNESOTA BORDER. THE AREA OF GREATEST THREAT FOR SEVERE WEATHER 
WILL BE MAINLY NORTH OF A LINE FROM PRINCETON THROUGH THE QUAD 
CITIES...TO NEAR BELLE PLAINE ALONG A STALLED FRONT. THESE STORMS 
WILL AGAIN BE CAPABLE OF PRODUCING LARGE HAIL...DAMAGING WIND AND 
HEAVY RAINFALL. AN ISOLATED TORNADO IS ALSO POSSIBLE ALONG 
INTERACTIONS OF STORM OUTFLOW BOUNDARIES. ALSO...VERY MOIST 
ATMOSPHERIC CONDITIONS WILL BE FAVORABLE FOR HEAVY RAINFALL WITH 
THUNDERSTORMS. THE STRONGEST STORMS WILL BE CAPABLE OF PRODUCING 
RAINFALL RATES AS HIGH AS 1 TO 2 INCHES AN HOUR. THIS COULD LEAD TO 
URBAN FLOODING...RAPID RISES ON STREAMS...AND PONDING OF WATER IN 
LOW LYING AREAS. IN ADDITION...CONDITIONS WILL BE HOT AND VERY HUMID 
IN THE AFTERNOON AND EVENING...ESPECIALLY SOUTH OF INTERSTATE 80. 
SURFACE DEWPOINTS AS HIGH AS THE MID 70S...ALONG WITH TEMPERATURES 
APPROACHING 90...WILL RESULT IN HEAT INDICES AS HIGH AS 100 TO 105. 

TONIGHT...ANOTHER THUNDERSTORM COMPLEX IS EXPECTED TO DEVELOP WEST 
OF THE REGION AND MOVE INTO EASTERN IOWA AND NORTHWEST ILLINOIS 
ALONG AND NORTH OF THE FRONTAL BOUNDARY MAINLY AFTER MIDNIGHT. THESE 
STORMS WILL HAVE THE POTENTIAL TO PRODUCE LARGE HAIL...DAMAGING 
WIND...AND VERY HEAVY RAINFALL. THE AREA OF GREATEST RISK WILL BE 
ALONG AND NORTH OF A LINE FROM WASHINGTON IOWA TO PRINCETON 
ILLINOIS. THE POTENTIAL FOR HEAVY RAINFALL WILL CONTINUE. LOCATIONS 
THAT MAY BE SATURATED FROM THUNDERSTORMS EARLIER IN THE DAY WILL 
NEED TO BE MONITORED FOR FLASH FLOODING IF ADDITIONAL STORMS TRACK 
OVER THE SAME AREAS. 

.DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY...

SEVERE THUNDERSTORMS WILL BE POSSIBLE TUESDAY AND TUESDAY NIGHT AS 
THE SURFACE FRONT GRADUALLY PUSHES SOUTH ACROSS THE OUTLOOK AREA. 
THE AREA OF GREATEST RISK IS EXPECTED TO BE MAINLY SOUTH OF THE 
HIGHWAY 30 CORRIDOR. THE SEVERE WEATHER THREAT WILL INCLUDE THE 
POTENTIAL FOR LARGE HAIL...DAMAGING WIND...AND FLASH FLOODING FROM 
HEAVY RAINFALL. 

THUNDERSTORMS ARE EXPECTED ON WEDNESDAY AND SUNDAY...BUT AT THIS 
TIME IT DOES NOT APPEAR THAT THERE WILL BE A SIGNIFICANT POTENTIAL 
FOR SEVERE STORMS. 

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION IS REQUESTED FOR SEVERE THUNDERSTORMS OCCURRING 
IN EASTERN IOWA AND FAR NORTHWEST ILLINOIS THIS MORNING. ADDITIONAL 
ACTIVATION MAY BE NEEDED LATER TODAY AND TONIGHT ACROSS THE NORTHERN 
HALF OF THE OUTLOOK AREA. STORM SPOTTER ACTIVATION MAY AGAIN BE 
NEEDED FOR TUESDAY AND TUESDAY NIGHT. 

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

$$
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