Tornado Warning Issued for Mills County IA and Cass County NE
This alert is no longer in effect.
NOAA issued it on May 27, 2026, 2 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 Tornado Warning for northwestern Mills County in Iowa and northeastern Cass County in Nebraska until 9:15 PM CDT.
Read this weather record in 30 seconds
- Record type
- Tornado Warning
- Affected area
- Mills County IA and Cass County NE
- Issued
- May 27, 2026
- Issuing authority
- NWS Omaha/Valley NE
Tornado warnings are short-window notices for the named area. The issuing office is the authority on whether the warning remains active or has been replaced.
Record status: historical. It was issued 2 months ago; use the issuing agency's live warning service for current conditions in Mills County IA and Cass County NE.
Alert Details
Tornado Warning issued by NWS Omaha/Valley NE. Effective from 2026-05-17T20:46:00-05:00 until 2026-05-17T21:15:00-05:00. Severity: Extreme. Certainty: Observed. Urgency: Immediate.
Affected Areas
Northwestern Mills County in southwestern Iowa and northeastern Cass County in southeastern Nebraska. Locations include Plattsmouth, Glenwood, Pacific Junction, and Silver City. Interstate 29 between mile markers 32 and 37.
What You Should Do
TAKE COVER NOW! Move to a basement or an interior room on the lowest floor of a sturdy building. Avoid windows. If you are outdoors, in a mobile home, or in a vehicle, move to the closest substantial shelter and protect yourself from flying debris.
Expected Conditions
At 8:46 PM CDT, a severe thunderstorm capable of producing a tornado was located over Plattsmouth, or 8 miles south of Offutt AFB, moving northeast at 50 mph. Hazard: Tornado and quarter size hail. Source: Radar indicated rotation.
Timeline
Alert effective immediately on 2026-05-17T20:46:00-05:00 and expires at 2026-05-17T21:15:00-05:00.
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 (1,080 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 27, 2026.
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