Severe Thunderstorm Warning Issued for Southeastern Fremont County, IA
This alert is no longer in effect.
NOAA issued it on May 25, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Omaha/Valley NE has issued a Severe Thunderstorm Warning for southeastern Fremont County in southwestern Iowa until 8:45 PM CDT due to half dollar size hail.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Southwestern Iowa
- Issued
- May 25, 2026
- Issuing authority
- NWS Omaha/Valley NE
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Southwestern Iowa.
Alert Details
A Severe Thunderstorm Warning was issued by NWS Omaha/Valley NE on behalf of NOAA. The alert is effective from 7:41 PM CDT on May 16, 2026, until 8:45 PM CDT on May 16, 2026.
Affected Areas
The warning covers southeastern Fremont County in southwestern Iowa, including the areas near Hamburg and Riverton. It also includes Interstate 29 between mile markers 1 and 4.
What You Should Do
For protection, move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 11:00 PM CDT for southwestern Iowa.
Expected Conditions
At 7:40 PM CDT, a severe thunderstorm was located 3 miles west of Hamburg (9 miles southeast of Nebraska City), moving northeast at 20 mph. Hazards include half dollar size hail (1.25 inches) and wind gusts up to 50 mph, with damage to vehicles expected. Hazards are radar indicated.
Timeline
The alert is in effect from 7:41 PM CDT until 8:45 PM CDT on May 16, 2026. The storm will be near Hamburg around 7:45 PM CDT and Riverton around 8:00 PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,041 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 25, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.