⚠️ Severe Thunderstorm Warning – Rock Island, IL; Whiteside, IL; Clinton, IA; Scott, IA – Tuesday, August 11, 2026

Severe Thunderstorm Warning issued August 11 at 8:20AM CDT until August 11 at 9:15AM CDT by NWS Quad Cities IA IL

Details

SVRDVN

The National Weather Service in the Quad Cities has issued a

* Severe Thunderstorm Warning for…
Northeastern Rock Island County in northwestern Illinois…
Southwestern Whiteside County in northwestern Illinois…
Northeastern Scott County in east central Iowa…
Southern Clinton County in east central Iowa…

* Until 915 AM CDT.

* At 819 AM CDT, severe thunderstorms were located along a line
extending from near Delmar to Welton to Walnut Grove Park, moving
southeast at 45 mph.

HAZARD…70 mph wind gusts.

SOURCE…Radar indicated. This line of storms has a history of
producing wind damage across portions of eastern Iowa.

IMPACT…Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.

* Locations impacted include…
Davenport, Bettendorf, Clinton, Eldridge, DeWitt, Camanche, Le
Claire, Hampton, Port Byron, Rapids City, Albany, Princeton, Long
Grove, Wheatland, Cordova, Grand Mound, Calamus, Donahue,
McCausland, and Low Moor.

This includes the following highways…
Interstate 74 in Iowa near mile marker 1.
Interstate 80 in Iowa between mile markers 289 and 306.
Interstate 80 in Illinois near mile marker 1.
Interstate 88 between mile markers 6 and 14.
Interstate 280 near mile marker 1.

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.

This is a DANGEROUS SITUATION. These storms are producing widespread
wind damage across portions of eastern Iowa. SEEK SHELTER NOW inside
a sturdy structure and stay away from windows!

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