⚠️ Severe Thunderstorm Warning – Henry, IL; Rock Island, IL; Clinton, IA; Scott, IA – Wednesday, August 12, 2026

Severe Thunderstorm Warning issued August 12 at 6:53AM CDT until August 12 at 8:00AM CDT by NWS Quad Cities IA IL

Details

SVRDVN

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for…
Rock Island County in northwestern Illinois…
Northwestern Henry County in northwestern Illinois…
Scott County in east central Iowa…
Clinton County in east central Iowa…

* Until 800 AM CDT.

* At 653 AM CDT, severe thunderstorms were located along a line
extending from near Calamus to near Maysville to near Taylor Ridge
to Marston, moving east at 40 mph.

HAZARD…60 mph wind gusts and penny size hail.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Locations impacted include…
Davenport, Moline, Rock Island, Bettendorf, Clinton, East Moline,
Silvis, Geneseo, Eldridge, DeWitt, Colona, Milan, Camanche, Le
Claire, Coal Valley, Fulton, Hampton, Orion, Port Byron, and
Walcott.

This includes the following highways…
Interstate 74 in Iowa between mile markers 1 and 5.
Interstate 80 in Iowa between mile markers 284 and 306.
Interstate 80 in Illinois between mile markers 1 and 26.
Interstate 74 in Illinois between mile markers 1 and 21.
Interstate 88 between mile markers 1 and 13.
Interstate 280 between mile markers 1 and 18.

Instructions

Remain alert for a possible tornado! Tornadoes can develop quickly
from severe thunderstorms. If you spot a tornado go at once into the
basement or small central room in a sturdy structure.

For your protection move to an interior room on the lowest floor of a
sturdy building.

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

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