Iowa Severe Severe Thunderstorm Warning | Effective 06/17/2026 04:24

Headline: 
Severe Thunderstorm Warning issued June 17 at 6:24AM CDT until June 17 at 6:45AM CDT by NWS Quad Cities IA IL
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
June 17, 2026 - 4:24am
Expires: 
June 17, 2026 - 4:45am
Description: 
At 624 AM CDT, a severe thunderstorm was located over Letts, or 7 miles northeast of Columbus Junction, 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... Muscatine, Columbus Junction, Fruitland, Grandview, Conesville, Columbus City, Letts, Nichols, Fredonia, Sand Springs, Cranston, Saulsbury Bridge Campground, Louisa County Fairgrounds, Ardon, Muscatine Municipal Airport, and Flaming Prairie Park.
Instruction: 
For your protection move to an interior room on the lowest floor of a sturdy building. Continuous cloud to ground lightning is 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.
Area Description: 
Louisa, IA; Muscatine, IA
Forcast Office: 
NWS Quad Cities IA IL
Sender: 
w-nws.webmaster@noaa.gov