Severe Thunderstorm Warning Issued for Illinois and Iowa Counties
This alert is no longer in effect.
NOAA issued it on July 18, 2026, 5 weeks ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Quad Cities has issued a Severe Thunderstorm Warning for multiple counties in northwestern Illinois and east central Iowa until 8:30 AM CDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Northwestern Illinois and East Central Iowa
- Issued
- July 18, 2026
- Issuing authority
- NWS Quad Cities IA IL
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 5 weeks ago; use the issuing agency's live warning service for current conditions in Northwestern Illinois and East Central Iowa.
Alert Details
A Severe Thunderstorm Warning (SVR) has been issued by the National Weather Service Quad Cities IA IL. The alert is effective from June 17, 2026 at 7:35 AM CDT until June 17, 2026 at 8:30 AM CDT.
Affected Areas
The warning covers Carroll, Henry, Mercer, Rock Island, and Whiteside counties in Illinois, along with Clinton, Jackson, Muscatine, and Scott counties in Iowa. Impacted locations include Davenport, Moline, Rock Island, Bettendorf, Clinton, East Moline, Maquoketa, Aledo, Durant, Silvis, Geneseo, Eldridge, DeWitt, Milan, Colona, Camanche, Le Claire, Coal Valley, Fulton, and Savanna. Affected highways include Interstate 74, Interstate 80, Interstate 88, and Interstate 280 in the specified segments.
What You Should Do
Move to an interior room on the lowest floor of a sturdy building. Move indoors immediately due to continuous cloud-to-ground lightning.
Expected Conditions
At 7:34 AM CDT, severe thunderstorms were located along a line extending from near Oxford Junction to near Wilton to near Fredonia, moving east at 55 mph. Hazards include 70 mph wind gusts. Expect considerable tree damage and likely damage to mobile homes, roofs, and outbuildings. Hail up to 0.75 inches is radar indicated.
Timeline
The warning is in effect from 7:35 AM CDT to 8:30 AM CDT on June 17, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,329 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 18, 2026.
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