⚠️ Severe Thunderstorm Warning – Dallas, IA; Madison, IA; Polk, IA; Warren, IA – Monday, July 20, 2026

Severe Thunderstorm Warning issued July 20 at 9:15PM CDT until July 20 at 10:00PM CDT by NWS Des Moines IA

Details

SVRDMX

The National Weather Service in Des Moines has issued a

* Severe Thunderstorm Warning for…
Southwestern Polk County in central Iowa…
Eastern Madison County in south central Iowa…
Southeastern Dallas County in central Iowa…
Western Warren County in south central Iowa…

* Until 1000 PM CDT.

* At 915 PM CDT, a severe thunderstorm was located near West Des
Moines, moving southeast at 40 mph.

HAZARD…60 mph wind gusts and quarter size hail.

SOURCE…Public reported quarter sized hail on the side of the Des
Moines metro area.

IMPACT…Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.

* Locations impacted include…
Des Moines, West Des Moines, Urbandale, Clive, Indianola, Waukee,
Norwalk, Windsor Heights, De Soto, Van Meter, Jordan Creek Town
Center, Des Moines Int’l Airport, Valley West Mall, Avenue Of The
Saints Event Center, St. Charles, New Virginia, Truro, Martensdale,
Cumming, and Patterson.

This includes the following highways…
Interstate 35 between mile markers 43 and 72.
Interstate 80 between mile markers 109 and 127.
Interstate 235 between mile markers 1 and 3.

Instructions

For your protection move to an interior room on the lowest floor of a
building.

A Tornado Watch remains in effect until 1000 PM CDT for central and
south central Iowa.

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