361
WWUS20 KWNS 110614
SEL4
SPC WW 110614
IAZ000-ILZ000-111100-
URGENT - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WATCH NUMBER 504
NWS STORM PREDICTION CENTER NORMAN OK
115 AM CDT FRI JUL 11 2025
THE NWS STORM PREDICTION CENTER HAS ISSUED A
* SEVERE THUNDERSTORM WATCH FOR PORTIONS OF
EASTERN IOWA
NORTHWEST ILLINOIS
* EFFECTIVE THIS FRIDAY MORNING FROM 115 AM UNTIL 600 AM CDT.
* PRIMARY THREATS INCLUDE...
SCATTERED DAMAGING WIND GUSTS TO 70 MPH POSSIBLE
ISOLATED LARGE HAIL EVENTS TO 1 INCH IN DIAMETER POSSIBLE
A TORNADO OR TWO POSSIBLE
SUMMARY...A WELL-ORGANIZED CLUSTER OF STORMS WITH A HISTORY OF WIND
DAMAGE AND MEASURED SEVERE GUSTS, INCLUDING A MEASURED 74 MPH WIND
GUST AT THE DES MOINES AIRPORT AROUND 1250 AM CDT, WILL CONTINUE
EASTWARD INTO EASTERN IOWA, AND PERHAPS NORTHWEST ILLINOIS,
INCLUDING THE I-80 CORRIDOR.
THE SEVERE THUNDERSTORM WATCH AREA IS APPROXIMATELY ALONG AND 30
STATUTE MILES NORTH AND SOUTH OF A LINE FROM 90 MILES WEST OF MOLINE
IL TO 10 MILES SOUTH OF MOLINE IL. FOR A COMPLETE DEPICTION OF THE
WATCH SEE THE ASSOCIATED WATCH OUTLINE UPDATE (WOUS64 KWNS WOU4).
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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...CONTINUE...WW 503...
AVIATION...A FEW SEVERE THUNDERSTORMS WITH HAIL SURFACE AND ALOFT TO
1 INCH. EXTREME TURBULENCE AND SURFACE WIND GUSTS TO 60 KNOTS. A FEW
CUMULONIMBI WITH MAXIMUM TOPS TO 550. MEAN STORM MOTION VECTOR
27040.
...GUYER
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