⚠️ Severe Thunderstorm Warning – Boone, IA; Hamilton, IA; Hardin, IA; Marshall, IA; Story, IA – Wednesday, June 17, 2026

Severe Thunderstorm Warning issued June 17 at 4:52AM CDT until June 17 at 5:45AM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Story County in central Iowa…
Hardin County in central Iowa…
Western Marshall County in central Iowa…
Hamilton County in central Iowa…
Northeastern Boone County in central Iowa…

* Until 545 AM CDT.

* At 452 AM CDT, a severe thunderstorm was located near Stratford, or
13 miles southwest of Webster City, moving southeast at 65 mph.

HAZARD…70 mph wind gusts and quarter size hail.

SOURCE…Radar indicated.

IMPACT…Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.

* Locations impacted include…
Ames, Boone, Webster City, Nevada, Iowa Falls, Eldora, Story City,
State Center, Roland, Jewell Junction, Gilbert, Iowa State Center,
Colo, Hubbard, Melbourne, Alden, Zearing, Radcliffe, Ellsworth, and
Stanhope.

This includes Interstate 35 between mile markers 110 and 148.

Instructions

Prepare immediately for large hail and damaging winds. People outside
should move immediately to shelter inside a strong building. Stay
away from windows.

This alert was automatically posted by SkyGuard, MWSC’s severe weather alerting system. Source: National Weather Service.