NWS Des Moines IATO.W 0077August 13, 2026
Tornado Warning: Marshall and Story, IA
The National Weather Service office in Des Moines issued a tornado warning for Marshall and Story in Iowa, which was in force until 7:15 a.m. local time on August 13. It was the 77th tornado warning the NWS office in Des Moines issued in 2026. Iowa had 21 tornado warnings in August 2026, against 5 in an average August of 2008-2025 (Iowa's tornado warnings by year).
ExpiredWarning
In force for 31 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Des Moines IA
- Area
- Marshall and Story
- State
- Iowa
- Level
- Warning
- Issued
- 6:44 a.m. CDT, August 13, 2026
- Expires
- 7:15 a.m. CDT, August 13, 2026
- CAP severity, certainty, urgency
- Extreme, Observed, Immediate
- VTEC event
- KDMX TO.W 0077
- Official source
- National Weather Service: the notice at its source
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
TORDMX The National Weather Service in Des Moines has issued a * Tornado Warning for... Central Story County in central Iowa... Northwestern Marshall County in central Iowa... * Until 715 AM CDT. * At 643 AM CDT, a severe thunderstorm capable of producing a tornado was located over Kelley, or 5 miles south of Ames, moving northeast at 35 mph. HAZARD...Tornado. SOURCE...Radar indicated rotation. IMPACT...Flying debris will be dangerous to those caught without shelter. Mobile homes will be damaged or destroyed. Damage to roofs, windows, and vehicles will occur. Tree damage is likely. * This dangerous storm will be near... Ames, Nevada, Iowa State Center, and Ames Municipal Airport around 650 AM CDT. Other locations impacted by this tornadic thunderstorm include Zearing, Kelley, McCallsburg, Ames Municipal Airport, and Colo. This includes Interstate 35 between mile markers 106 and 124.
What the agency told people to do
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.