⚠️ Severe Thunderstorm Warning – Boone, IA; Calhoun, IA; Greene, IA; Hamilton, IA; Webster, IA – Wednesday, June 17, 2026

Severe Thunderstorm Warning issued June 17 at 4:31AM CDT until June 17 at 5:15AM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Northeastern Greene County in west central Iowa…
Webster County in central Iowa…
Calhoun County in west central Iowa…
Western Hamilton County in central Iowa…
Northwestern Boone County in central Iowa…

* Until 515 AM CDT.

* At 430 AM CDT, a severe thunderstorm was located over Rockwell
City, moving east at 55 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…
Fort Dodge, Webster City, Rockwell City, Lake City, Manson, Gowrie,
North Twin Lake, Fort Dodge Regional Airport, South Twin Lake,
Dayton, Stratford, Coalville, Otho, Lehigh, Duncombe, Callender,
Farnhamville, Lohrville, Twin Lakes, and Harcourt.

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.