Tornado Warning issued for Clay and Dickinson Counties in Iowa
This alert is no longer in effect.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 Sioux Falls has issued a Tornado Warning for Clay County and southeastern Dickinson County in northwestern Iowa until 9:15 PM CDT.
Read this weather record in 30 seconds
- Record type
- Tornado Warning
- Affected area
- Northwestern Iowa
- Issued
- May 27, 2026
- Issuing authority
- NWS Sioux Falls SD
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 Northwestern Iowa.
Alert Details
Tornado Warning issued by NWS Sioux Falls SD. Effective from May 17 at 8:48 PM CDT until May 17 at 9:15 PM CDT. Alert level: Extreme. Certainty: Observed. Urgency: Immediate.
Affected Areas
Clay County in northwestern Iowa and southeastern Dickinson County in northwestern Iowa. The storm was located near Greenville, or 9 miles southwest of Spencer in Clay County, and will be near Spencer in Clay County and Lost Island Lake around 8:55 PM CDT.
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
Severe thunderstorms capable of producing tornadoes and extensive straight line wind damage moving northeast at 70 mph. Hazard includes tornado and quarter size hail (1.00 inch). Radar indicated rotation.
Timeline
Alert effective May 17 at 8:48 PM CDT. Expires May 17 at 9:15 PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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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 (1,051 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 27, 2026.
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