From June 16–18, 2010, a major tornado outbreak and derechos affected the Northern Plains, Upper Midwest and Ohio Valley.
Confirmed tornadoes
June 16 event + List of confirmed tornadoes – Wednesday, June 16, 2010EF#LocationCounty / ParishStateStart Coord.Time (UTC)Path lengthMax width EF2SE of BowlerCarbonMT23:00–23:05This strong tornado caused significant damage to electrical infrastructure, destroying four transmission structures, damaging another transmission pole, and shredding two wooden power poles. Some fencing was also damaged. EF0S of Red Elm (1st tornado)ZiebachSD23:04–23:05A brief tornado touched down and caused no damage. EF0S of Red Elm (2nd tornado)ZiebachSD23:30–23:32This tornado briefly touched down and remained over open land. EF0S of Red Elm (3rd tornado)ZiebachSD23:40A small needle-shaped tornado briefly occurred. EF0S of Red Elm (4th tornado)ZiebachSD23:41No damage occurred from this narrow, brief tornado. EF1ESE of Red Elm to W of DupreeZiebachSD00:22–00:45A tornado touched down southwest of Dupree and moved northeast, crossing US 212 and blowing over power poles. EF0W of DupreeZiebachSD00:30A small satellite tornado to the 0022 UTC tornado caused no damage. EF2Western DupreeZiebachSD00:33–00:49This strong tornado touched down just south of Dupree and tracked through the west side of town, causing significant structural damage. The roof was torn off the community center, a nearby house and garage were damaged, and large grain bins were crumpled. Several mobile homes were tossed by the winds. Two people were injured.. EF0N of Dupree (1st tornado)ZiebachSD00:40–00:42This tornado remained over open land. EF0N of Dupree (2nd tornado)ZiebachSD00:40–00:42A tornado briefly occurred. EF0NNW of Dupree (1st tornado)ZiebachSD00:53The first of three tornadoes to briefly occur at the same time. No damage occurred. EF0NNW of Dupree (3rd tornado)ZiebachSD00:53The second of three tornadoes to briefly occur at the same time. No damage occurred. EF0NNW of Dupree (3rd tornado)ZiebachSD00:53The third of three tornadoes to briefly occur at the same time. No damage occurred. EF0NNW of Dupree (4th tornado)ZiebachSD00:54A brief tornado remained over open land. EF0NNW of Dupree (5th tornado)ZiebachSD00:56This tornado caused no damage over rural terrain. EF0NNW of Dupree (6th tornado)ZiebachSD00:58This small tornado occurred over open land. EF0NNW of Dupree (7th tornado)ZiebachSD00:58A tornado occurred over open land, causing no damage. EF2NE of Lantry to NW of Eagle ButteDeweySD01:35–01:38This brief but strong tornado struck a farmstead, inflicting severe structural damage to two homes and destroying several pole barns. Multiple pieces of agricultural equipment were damaged and a horse was mortally wounded. EF1SSW of FrazerMcConeMT02:56–03:04This tornado snapped numerous trees and damaged metal storage sheds.
June 17 event