Iowa Severe Thunderstorm Warning | Effective 04/23/2026 19:16

Headline: 
Severe Thunderstorm Warning issued April 23 at 9:16PM CDT until April 23 at 9:30PM CDT by NWS Des Moines IA
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
April 23, 2026 - 7:16pm
Expires: 
April 23, 2026 - 7:30pm
Description: 
At 915 PM CDT, severe thunderstorms were located along a line extending from 4 miles north of Williamson to 4 miles northeast of Millerton to near Powersville, moving east at 50 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Chariton, Humeston, Lineville, Lucas, Williamson, Derby, Clio, South Lineville, Chariton Municipal Airport, and Red Haw Lake State Park.
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: 
Lucas, IA; Marion, IA; Warren, IA; Wayne, IA
Forcast Office: 
NWS Des Moines IA