Iowa, Nebraska Severe Thunderstorm Warning | Effective 05/18/2026 14:54

Headline: 
Severe Thunderstorm Warning issued May 18 at 4:54PM CDT until May 18 at 5:45PM CDT by NWS Omaha/Valley NE
Event: 
Severe Thunderstorm Warning
Urgency: 
Immediate
Effective: 
May 18, 2026 - 2:54pm
Expires: 
May 18, 2026 - 3:45pm
Description: 
At 453 PM CDT, a severe thunderstorm was located 3 miles southwest of Hamburg, or 10 miles southeast of Nebraska City, moving northeast at 35 mph. HAZARD...70 mph wind gusts and ping pong ball size hail. SOURCE...Radar indicated. IMPACT...People and animals outdoors will be injured. Expect hail damage to roofs, siding, windows, and vehicles. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. Locations impacted include... Hamburg, Riverton, Farragut and Shenandoah. This includes Interstate 29 between mile markers 1 and 7.
Instruction: 
A Tornado Watch remains in effect until 800 PM CDT for southeastern Nebraska. A Tornado Watch also 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: 
Fremont, IA; Page, IA; Nemaha, NE; Otoe, NE; Richardson, NE
Forcast Office: 
NWS Omaha/Valley NE