Iowa Severe Severe Thunderstorm Warning | Effective 07/20/2026 14:13

Headline: 
Severe Thunderstorm Warning issued July 20 at 4:13PM CDT until July 20 at 5:15PM CDT by NWS Des Moines IA
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
July 20, 2026 - 2:13pm
Expires: 
July 20, 2026 - 3:15pm
Description: 
SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Black Hawk County in northeastern Iowa... Southeastern Bremer County in northeastern Iowa... * Until 515 PM CDT. * At 413 PM CDT, a severe thunderstorm was located over Waterloo Municipal Airport, or near Cedar Falls, moving southeast at 40 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... Waterloo, Cedar Falls, Evansdale, Jesup, La Porte City, Denver, Elk Run Heights, Waterloo Municipal Airport, Crossroads Mall, Uni-Dome And McLeod Center, Janesville, Washburn, Dunkerton, Readlyn, Raymond, Gilbertville, and George Wyth State Park. This includes Interstate 380 between mile markers 56 and 73.
Instruction: 
For your protection move to an interior room on the lowest floor of a building. Large hail, damaging wind, and continuous cloud to ground lightning are occurring with this storm. Move indoors immediately. Lightning is one of nature's leading killers. Remember, if you can hear thunder, you are close enough to be struck by lightning. A Tornado Watch remains in effect until 1000 PM CDT for central, north central and northeastern Iowa.
Area Description: 
Black Hawk, IA; Bremer, IA
Forcast Office: 
NWS Des Moines IA