⚠️ Special Weather Statement – Louisa; Des Moines; Henry; Mercer; Henderson; Warren – Wednesday, August 12, 2026

Special Weather Statement issued August 12 at 11:24AM CDT by NWS Quad Cities IA IL

Details

At 1123 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Galva to near Burgess to near Oquawka.
Movement was southeast at 35 mph.

HAZARD…Winds in excess of 40 mph and heavy rainfall leading to
localized flooding.

SOURCE…Radar indicated.

IMPACT…Gusty winds could cause minor tree limb damage and blow
around unsecured objects. Slowing or redirecting of traffic
due to ponding or flowing water. Closure of waterfront
access due to flooding.

Locations impacted include…
Kewanee, Monmouth, Aledo, Galva, Burgess, Viola, Woodhull, Kirkwood,
Alpha, Keithsburg, Little York, Rozetta, Seaton, North Henderson,
Shale City, New Windsor, Lake Warren, Ogle, Alexis, and Coldbrook.

This includes Interstate 74 in Illinois between mile markers 29 and
33.

Instructions

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is occurring and may lead to localized flooding.
Do not drive your vehicle through flooded roadways.

A Severe Thunderstorm Watch remains in effect until 100 PM CDT for
northwestern and west central Illinois…and southeastern Iowa.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.