⚠️ Severe Thunderstorm Warning – Black Hawk, IA; Butler, IA; Grundy, IA – Sunday, July 26, 2026

Severe Thunderstorm Warning issued July 26 at 4:59PM CDT until July 26 at 5:45PM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Central Black Hawk County in northeastern Iowa…
Northeastern Grundy County in central Iowa…
Southeastern Butler County in north central Iowa…

* Until 545 PM CDT.

* At 459 PM CDT, a severe thunderstorm was located near New Hartford,
or 9 miles southwest of Waverly, moving southeast at 30 mph.

HAZARD…60 mph wind gusts.

SOURCE…Radar indicated.

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

* Locations impacted include…
Waterloo, Cedar Falls, Evansdale, Hudson, Elk Run Heights, Waterloo
Municipal Airport, Crossroads Mall, Uni-Dome And McLeod Center,
Janesville, Washburn, Dunkerton, Raymond, New Hartford, and George
Wyth State Park.

This includes Interstate 380 between mile markers 68 and 73.

Instructions

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

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