⚠️ Severe Thunderstorm Warning – Boone, IA; Carroll, IA; Dallas, IA; Greene, IA; Guthrie, IA; Polk, IA – Thursday, August 13, 2026

Severe Thunderstorm Warning issued August 13 at 5:51AM CDT until August 13 at 6:30AM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Northwestern Polk County in central Iowa…
Greene County in west central Iowa…
Guthrie County in west central Iowa…
Boone County in central Iowa…
Southeastern Carroll County in west central Iowa…
Dallas County in central Iowa…

* Until 630 AM CDT.

* At 551 AM CDT, severe thunderstorms were located along a line
extending from 4 miles north of Carroll to 5 miles south of
Jefferson to near Adair, moving east at 55 mph.

HAZARD…60 mph wind gusts.

SOURCE…Radar indicated.

IMPACT…Expect damage to roofs, siding, and trees.

* Locations impacted include…
West Des Moines, Urbandale, Clive, Waukee, Boone, Grimes, Perry,
Jefferson, Adel, Guthrie Center, Madrid, Ogden, Dallas Center,
Granger, Panora, De Soto, Woodward, Van Meter, Lake Panorama, and
Big Creek Lake.

This includes Interstate 80 between mile markers 111 and 120.

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.