Iowa Severe Thunderstorm Warning | Effective 04/23/2026 17:50

Headline: 
Severe Thunderstorm Warning issued April 23 at 7:50PM CDT until April 23 at 8:30PM CDT by NWS Des Moines IA
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 23, 2026 - 5:50pm
Expires: 
April 23, 2026 - 6:30pm
Description: 
SVRDMX The National Weather Service in Des Moines has issued a * Severe Thunderstorm Warning for... Polk County in central Iowa... Southern Story County in central Iowa... Madison County in south central Iowa... Western Jasper County in central Iowa... Southeastern Boone County in central Iowa... Eastern Dallas County in central Iowa... Warren County in south central Iowa... * Until 830 PM CDT. * At 749 PM CDT, severe thunderstorms were located along a line extending from Alleman to near Norwalk to near Truro, moving east at 40 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Des Moines, West Des Moines, Ankeny, Urbandale, Johnston, Clive, Indianola, Altoona, Waukee, Norwalk, Pleasant Hill, Grimes, Winterset, Adel, Windsor Heights, Carlisle, Bondurant, Polk City, Huxley, and Saylorville. This includes the following highways... Interstate 35 between mile markers 44 and 72, and between mile markers 87 and 103. Interstate 80 between mile markers 112 and 153. Interstate 235 between mile markers 1 and 14.
Instruction: 
Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage.
Area Description: 
Boone, IA; Dallas, IA; Jasper, IA; Madison, IA; Polk, IA; Story, IA; Warren, IA
Forcast Office: 
NWS Des Moines IA
Sender: 
w-nws.webmaster@noaa.gov