Tornado Warning — Warned Area, IA — May 18, 2026
NWS ARX · ETN 40 · National Weather Service warning
Event Summary
The National Weather Service office ARX issued a tornado warning at 03:24 UTC on May 18, 2026. The warning was in effect for 51 minutes, ending at May 18, 2026 04:15 UTC. At the last radar check, the storm was located near 43.08, -93.17, moving east-northeast at about 55 mph.
Timeline
- Issued
- Last updated
- Ended
Counties Affected
Storm Reports
| Time | Location | County / State | EF | Remarks |
|---|---|---|---|---|
| 3 S Mason City | Cerro Gordo, IA | UNK | Local fire reports tornado on ground. Time estimated via radar. (DMX) | |
| 3 S Mason City | Cerro Gordo, IA | UNK | Local fire reports tornado on ground. (DMX) | |
| 2 ESE Glenville | Freeborn, MN | UNK | Delayed report... time estimated from radar. Damage in line QLCS tornado... supported by radar signature and near storm environment. (MPX) |
Preliminary local storm reports (SPC) within the warned area window — subject to revision after NWS surveys.