Severe Thunderstorm Warning — Grundy County, Iowa
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Current Status
⛈️ Active: Severe Thunderstorm Warning
Severe Thunderstorm Warning issued August 7 at 4:16PM CDT until August 7 at 5:15PM CDT by NWS Des Moines IA
SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Black Hawk County in northeastern Iowa... Northeastern Tama County in central Iowa... Northeastern Grundy County in central Iowa... * Until 515 PM CDT. * At 415 PM CDT, a severe thunderstorm was located near Holland, or 7 miles north of Grundy Center, moving east at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Waterloo, Cedar Falls, Evansdale, Jesup, La Porte City, Hudson, Reinbeck, Dysart, Dike, Elk Run Heights, Crossroads Mall, Uni-Dome And McLeod Center, Washburn, Raymond, Gilbertville, Stout, Morrison, Tf Clark State Park, and George Wyth State Park. This includes Interstate 380 between mile markers 56 and 73.
Effective August 7, 2026 at 5:16 PM ET · Expires August 7, 2026 at 6:15 PM ET
Event Details
Event Type
Severe Thunderstorm Warning
Severity
severe
Issued By
NWS Des Moines IA
Expires
August 7, 2026 at 6:15 PM ET
Last Checked
1 hour ago
What To Do
📋 Official NWS Guidance
For your protection move to an interior room on the lowest floor of a building.
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Get Severe Thunderstorm Warning Alerts for Grundy County
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Frequently Asked Questions
What does a Severe Thunderstorm Warning mean for Grundy County, Iowa?
A thunderstorm capable of producing damaging winds of 58+ mph and/or 1-inch hail has been detected.
Is this Severe Thunderstorm Warning currently active?
Yes — this alert is active as of our last check (1 hour ago). It's set to expire August 7, 2026 at 6:15 PM ET.
How do I get notified about Severe Thunderstorm Warning alerts for Grundy County?
Download StormCast free on Google Play and set Grundy County, Iowa as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.