734 WUUS53 KFSD 280806 SVRFSD SDC009-035-061-067-087-125-135-280900- /O.NEW.KFSD.SV.W.0128.260628T0806Z-260628T0900Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Sioux Falls SD 306 AM CDT Sun Jun 28 2026 The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Davison County in southeastern South Dakota... Northern Bon Homme County in southeastern South Dakota... McCook County in southeastern South Dakota... Northern Yankton County in southeastern South Dakota... Hanson County in southeastern South Dakota... Western Turner County in southeastern South Dakota... Hutchinson County in southeastern South Dakota... * Until 400 AM CDT. * At 305 AM CDT, severe thunderstorms were located along a line extending from near Loomis to near Milltown to 6 miles southwest of Kaylor, moving northeast at 40 mph. HAZARD...70 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect considerable tree damage. Wind damage is also likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Mitchell, Parkston, Tyndall, Parker, Lake Vermillion State Recreation Area, Salem, Freeman, Scotland, Marion, Canistota, Tripp, Alexandria, Menno, Avon, Bridgewater, Montrose, Mount Vernon, Emery, Irene, and Ethan. PRECAUTIONARY/PREPAREDNESS ACTIONS... Prepare immediately for large hail and damaging winds. People outside should move immediately to shelter inside a strong building. Stay away from windows. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4293 9811 4310 9811 4318 9807 4320 9811 4348 9810 4377 9832 4385 9809 4384 9713 4309 9713 TIME...MOT...LOC 0805Z 239DEG 37KT 4373 9813 4345 9785 4311 9791 THUNDERSTORM DAMAGE THREAT...CONSIDERABLE HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...1.00 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...70 MPH $$ JH 917 WUUS53 KFSD 280859 SVRFSD SDC027-125-135-280945- /O.NEW.KFSD.SV.W.0129.260628T0859Z-260628T0945Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Sioux Falls SD 359 AM CDT Sun Jun 28 2026 The National Weather Service in Sioux Falls has issued a * Severe Thunderstorm Warning for... Northwestern Clay County in southeastern South Dakota... Yankton County in southeastern South Dakota... Turner County in southeastern South Dakota... * Until 445 AM CDT. * At 358 AM CDT, severe thunderstorms were located along a line extending from 8 miles north of Utica to near Lewis And Clark State Recreation Area to 6 miles northwest of Crofton, moving northeast at 45 mph. HAZARD...60 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Yankton, Lewis And Clark State Recreation Area, and Mayfield around 405 AM CDT. Mission Hill around 410 AM CDT. Irene and Volin around 415 AM CDT. Other locations in the path of these severe thunderstorms include Wakonda, Viborg, Hurley, Centerville and Davis. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && LAT...LON 4280 9720 4285 9723 4287 9730 4286 9742 4285 9743 4286 9763 4311 9763 4317 9749 4317 9739 4334 9739 4343 9693 4308 9693 4283 9696 TIME...MOT...LOC 0858Z 244DEG 39KT 4310 9751 4291 9750 4280 9760 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...0.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ JH