Tornado Warning — Warned Area, IA — May 18, 2026

NWS DMX · ETN 45 · National Weather Service warning

Radar-indicated position & projected track

Event Summary

The National Weather Service office DMX issued a tornado warning at 03:19 UTC on May 18, 2026. The warning was in effect for 26 minutes, ending at May 18, 2026 03:45 UTC. At the last radar check, the storm was located near 43.04, -93.22, moving east-northeast at about 55 mph.

Timeline

Issued: May 18, 2026 03:19 UTC
Last updated: May 19, 2026 11:15 UTC
Ended: May 18, 2026 03:45 UTC

Counties Affected

Cerro Gordo, IA

Towns in the Path

Mason City, IA

Storm Reports

Time	Location	County / State	EF	Remarks
May 18, 2026 03:21 UTC	3 S Mason City	Cerro Gordo, IA	UNK	Fire reported tornado on ground. Time estimated via radar. (DMX)
May 18, 2026 03:24 UTC	3 S Mason City	Cerro Gordo, IA	UNK	Local fire reports tornado on ground. Time estimated via radar. (DMX)
May 18, 2026 03:27 UTC	3 S Mason City	Cerro Gordo, IA	UNK	Local fire reports tornado on ground. (DMX)

Preliminary local storm reports (SPC) within the warned area window — subject to revision after NWS surveys.