Severe Thunderstorm Warning Issued for South Dakota, Minnesota, Iowa
This alert is no longer in effect.
NOAA issued it on July 18, 2026, 5 weeks 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 Severe Thunderstorm Warning for multiple counties in southeastern South Dakota, southwestern Minnesota, and northwestern Iowa until 5:15 PM CDT.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- Southeastern South Dakota, Southwestern Minnesota, Northwestern Iowa
- Issued
- July 18, 2026
- Issuing authority
- NWS Sioux Falls SD
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 5 weeks ago; use the issuing agency's live warning service for current conditions in Southeastern South Dakota, Southwestern Minnesota, Northwestern Iowa.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Sioux Falls SD. The alert is effective from June 17, 2026 at 4:43 PM CDT until June 17, 2026 at 5:15 PM CDT.
Affected Areas
The warning covers Western Lyon County in northwestern Iowa; Rock County in southwestern Minnesota; and Hutchinson, Lake, Lincoln, McCook, Minnehaha, Moody, and Turner counties in southeastern South Dakota. Specific locations in the path include Sioux Falls, Parker, Hartford, Crooks, Wall Lake, Baltic, Marion, Monroe, Ellis, Dell Rapids, Tea, Garretson, Chancellor, Sherman, Brandon, Lennox, Hurley, Palisades State Park, Corson, Harrisburg, Worthing, Valley Springs, Davis, Lake Alvin State Recreation Area, Rowena, Luverne, Beaver Creek, Larchwood, and Hills.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 4:41 PM CDT, severe thunderstorms were located along a line extending from Dell Rapids to near Humboldt to Marion, moving southeast at 55 mph. Hazards include 60 mph wind gusts. A 62 mph wind gust was reported 4 miles north of Dolton, SD at 4:31 PM CDT. Hail up to 0.75 inches is possible.
Timeline
The warning is in effect until 5:15 PM CDT on June 17, 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 (1,283 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to July 18, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.