NWS Des Moines IASV.W 0327September 4, 2026
Severe Thunderstorm Warning: Butler and Grundy, IA
The National Weather Service office in Des Moines issued a severe thunderstorm warning for Butler and Grundy in Iowa, which was in force until 4:00 p.m. local time on September 4. It was the 327th severe thunderstorm warning the NWS office in Des Moines issued in 2026. Iowa had 50 severe thunderstorm warnings in September 2026, against 39 in an average September of 2008-2025 (Iowa's severe thunderstorm warnings by year).
ExpiredWarning
In force for 39 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Des Moines IA
- Area
- Butler and Grundy
- State
- Iowa
- Level
- Warning
- Issued
- 3:21 p.m. CDT, September 4, 2026
- Expires
- 4:00 p.m. CDT, September 4, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KDMX SV.W 0327
- Official source
- National Weather Service: the notice at its source
Severe Thunderstorm Warnings in Iowa since 2008Every warning type in Iowa
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
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.
What the agency told people to do
For your protection move to an interior room on the lowest floor of a building.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.
The record around this notice
- Severe Thunderstorm Warnings in Iowa since 2008563 a year
- Every warning type in Iowa
- Severe Thunderstorm Warning: what it means, and the states that get the most20,005 a year
- NWS notices, September 20262,824 in the month
- The latest from the National Weather Service
- Warning, watch or advisory: the three NWS levels