Red Flag Warning Issued for Iowa, Minnesota, Nebraska, South Dakota
This alert is no longer in effect.
NOAA issued it on May 19, 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 Sioux Falls has issued a Red Flag Warning for critical fire weather conditions due to strong winds and low humidity across parts of four states.
Read this weather record in 30 seconds
- Record type
- Red Flag Warning
- Affected area
- Northwestern Iowa, Southwestern Minnesota, Southeastern South Dakota, Northeastern Nebraska
- Issued
- May 19, 2026
- Issuing authority
- NWS
Fire-weather notices describe conditions that can support rapid fire spread; they do not report that a fire is present. Check local emergency sources for any active incident.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in Northwestern Iowa, Southwestern Minnesota, Southeastern South Dakota, Northeastern Nebraska.
Alert Details
A Red Flag Warning has been issued by the National Weather Service in Sioux Falls SD. The alert is effective from noon to 9 PM CDT Tuesday for wind and low relative humidity.
Affected Areas
The warning covers the following regions: In Iowa, Lyon, Osceola, Dickinson, Sioux, O'Brien, Clay, Plymouth, Cherokee, Buena Vista, Woodbury and Ida counties. In Minnesota, Lincoln, Lyon, Murray, Cottonwood, Nobles, Jackson, Pipestone and Rock counties. In Nebraska, Dixon and Dakota counties. In South Dakota, Beadle, Kingsbury, Brookings, Gregory, Jerauld, Sanborn, Miner, Lake, Moody, Brule, Aurora, Davison, Hanson, McCook, Minnehaha, Charles Mix, Douglas, Hutchinson, Turner, Lincoln, Bon Homme, Yankton, Clay and Union counties.
What You Should Do
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Outdoor burning is not recommended.
Expected Conditions
Winds will be northwest 20 to 30 mph with gusts up to 40 mph. Relative humidity will drop as low as 20 percent.
Timeline
The warning is in effect from noon to 9 PM CDT Tuesday, May 12, 2026.
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 (1,129 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 19, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.