NWS Sioux Falls SDSV.W 0078May 31, 2026
Severe Thunderstorm Warning: Hanson, Lake, McCook and 1 more, SD
The National Weather Service office in Sioux Falls issued a severe thunderstorm warning for Hanson, Lake, McCook and 1 more in South Dakota, which was in force until 6:45 p.m. local time on May 31. It was the 78th severe thunderstorm warning the NWS office in Sioux Falls issued in 2026. South Dakota had 44 severe thunderstorm warnings in May 2026, against 69 in an average May of 2008-2025 (South Dakota's severe thunderstorm warnings by year).
ExpiredWarning
In force for 48 minutes; it has expired. The agency may have replaced it with a new notice.
The notice
- Issued by
- National Weather Service, Sioux Falls SD
- Area
- Hanson, Lake, McCook and 1 more
- State
- South Dakota
- Level
- Warning
- Issued
- 5:57 p.m. CDT, May 31, 2026
- Expires
- 6:45 p.m. CDT, May 31, 2026
- CAP severity, certainty, urgency
- Severe, Observed, Immediate
- VTEC event
- KFSD SV.W 0078
- Official source
- National Weather Service: the notice at its source
Severe Thunderstorm Warnings in South Dakota since 2008Every warning type in South Dakota
Source: National Weather Service: the notice at its source. AreaZine rebuilds this page from the agency's record; the agency's page is the one to act on. A U.S. Government work, in the public domain.
The notice as issued
SVRFSD The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Southwestern Lake County in east central South Dakota... Southeastern Miner County in east central South Dakota... Western McCook County in southeastern South Dakota... Eastern Hanson County in southeastern South Dakota... * Until 645 PM CDT. * At 556 PM CDT, a severe thunderstorm was located near Emery, or 20 miles west of Lake Vermillion State Recreation Area, moving northeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * This severe thunderstorm will be near... Salem and Spencer In McCook County around 600 PM CDT. Canova around 615 PM CDT.
What the agency told people to do
Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. For your protection move to an interior room on the lowest floor of a building. To report severe weather, contact your nearest law enforcement agency. They will send your report to the National Weather Service office in Sioux Falls. Torrential rainfall is occurring with this storm, and may lead to flash flooding. Do not drive your vehicle through flooded roadways.
Source: National Weather Service: the notice at its source. The text is the agency's, unedited. A U.S. Government work, in the public domain.
The record around this notice
- Severe Thunderstorm Warnings in South Dakota since 2008629 a year
- Every warning type in South Dakota
- Severe Thunderstorm Warning: what it means, and the states that get the most20,005 a year
- NWS notices, May 20262,688 in the month
- The latest from the National Weather Service
- Warning, watch or advisory: the three NWS levels