Alert archive / Iowa / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 171, NWS La Crosse, WI
NWS La Crosse, WI issued this severe thunderstorm warning at Aug 11, 2026, 7:30 AM CDT for Allamakee County, Winneshiek County, Iowa. It was in force for 15 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Aug 11, 2026, 7:30 AM CDT (12:30 UTC)
- Expired
- Aug 11, 2026, 7:45 AM CDT
- In force
- 15 min
- Issued by
- NWS La Crosse, WI
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Allamakee County, IA, Winneshiek County, IA
The radar
The La Crosse radar (KARX), 68 km from the middle of the area, began a volume at 12:30 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Aug 11, 7:22 AM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The office that day
Everything else NWS La Crosse, WI issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 11, 1:41 AM CDT | Special Weather Statement | ARX | Grant | 19 min |
| Aug 11, 7:37 AM CDT | Severe Thunderstorm Warning | ARX | Grant | 54 min |
| Aug 11, 6:51 AM CDT | Special Weather Statement | ARX | Chickasaw, Fayette, Floyd | 24 min |
| Aug 11, 6:56 AM CDT | Severe Thunderstorm Warning | ARX | Fayette | 34 min |
| Aug 11, 7:07 AM CDT | Severe Thunderstorm Warning | ARX | Allamakee, Chickasaw, Clayton, Fayette, Howard, Winneshiek | 50 min |
| Aug 11, 7:24 AM CDT | Areal Flood Advisory | ARX | Chickasaw, Floyd | 3 hr |
Nearby
Severe Thunderstorm Warnings in Iowa, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.