Severe Thunderstorm Warning Issued for Central Iowa
This alert is no longer in effect.
NOAA issued it on July 5, 2026, 7 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 Des Moines has issued a Severe Thunderstorm Warning for 10 counties in central Iowa until 8:30 AM CDT June 11.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Central Iowa
- Issued
- July 5, 2026
- Issuing authority
- NWS Des Moines IA
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 7 weeks ago; use the issuing agency's live warning service for current conditions in Central Iowa.
Alert Details
Severe Thunderstorm Warning issued by NWS Des Moines IA. Effective from June 11 at 7:44 AM CDT until June 11 at 8:30 AM CDT. Alert type code: SVW.
Affected Areas
Counties: Grundy, Hardin, Jasper, Mahaska, Marion, Marshall, Polk, Poweshiek, Story, Tama in central Iowa. Specific areas include Western Poweshiek County, Eastern Polk County, Eastern Story County, Southeastern Hardin County, Marshall County, Northern Marion County, Western Tama County, Northwestern Mahaska County, Southwestern Grundy County, and Jasper County. Locations impacted: Marshalltown, Newton, Grinnell, Nevada, Grundy Center, Mitchellville, Colfax, Monroe, Prairie City, State Center, Conrad, Baxter, Iowa Speedway, Meskwaki Casino, Rock Creek Lake, Gladbrook, Le Grand, Maxwell, Colo, Melbourne. Includes Interstate 80 between mile markers 148 and 190.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 7:44 AM CDT, severe thunderstorms located along a line extending from near Story City to Swan, moving east at 60 mph. Hazards include 60 mph wind gusts and nickel size hail (0.88 inch). Radar indicated. Expect damage to roofs, siding, and trees.
Timeline
Alert effective June 11 7:44 AM CDT, expires and ends June 11 8:30 AM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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 (1,314 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 5, 2026.
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