⚠️ Severe Thunderstorm Warning – Butler, IA; Grundy, IA – Friday, September 4, 2026

Severe Thunderstorm Warning issued September 4 at 3:21PM CDT until September 4 at 4:00PM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Northeastern Grundy County in central Iowa…
Southeastern Butler County in north central Iowa…

* Until 400 PM CDT.

* At 321 PM CDT, a severe thunderstorm was located near Parkersburg,
or 8 miles south of Allison, moving east at 20 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…
Parkersburg, Shell Rock, and New Hartford.

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.