Iowa Severe Thunderstorm Warning | Effective 05/18/2026 16:37

Headline: 
Severe Thunderstorm Warning issued May 18 at 6:37PM CDT until May 18 at 7:15PM CDT by NWS Omaha/Valley NE
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 18, 2026 - 4:37pm
Expires: 
May 18, 2026 - 5:15pm
Description: 
SVROAX The National Weather Service in Omaha has issued a * Severe Thunderstorm Warning for... Northwestern Montgomery County in southwestern Iowa... Northeastern Mills County in southwestern Iowa... Southeastern Pottawattamie County in southwestern Iowa... * Until 715 PM CDT. * At 636 PM CDT, a severe thunderstorm was located over Malvern, or 18 miles west of Red Oak, moving northeast at 55 mph. HAZARD...Ping pong ball size hail and 60 mph wind gusts. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Hastings around 640 PM CDT. Henderson around 645 PM CDT.
Instruction: 
A Tornado Watch remains in effect until 1000 PM CDT for southwestern Iowa. For your protection move to an interior room on the lowest floor of a building.
Area Description: 
Mills, IA; Montgomery, IA; Pottawattamie, IA
Forcast Office: 
NWS Omaha/Valley NE
Sender: 
w-nws.webmaster@noaa.gov