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...In Minnesota, where the Kandiyohi Sheriff's Office said in a news release Friday morning that a man was killed by a large grain bin that blew over in Lake Lillian, about 87 miles west of Minneapolis. A 71-mph wind gust was reported in the area.

Crews were heading out this morning for damage assessments.

"We had two train cars tipped ... We've had poultry barn roofs blown off, lots of power lines down and some of our communities are still without power," Kandiyohi County Emergency Management Director Stephanie Felt told weather.com in a phone call.

A state of emergency was declared in South Dakota in the storms' aftermath.

Drone video showed damage to homes and other buildings in Castlewood, South Dakota, where both the derecho and a confirmed tornado hit. A high school in the town sustained extensive damage. Castlewood is about 90 miles north of Sioux Falls....

A wind gust over 105 mph was measured near Tripp, South Dakota, about 60 miles southwest of Sioux Falls. There were dozens of other reports of winds over 75 mph.

To the southeast, a semi was blown over near Meckling, South Dakota, according to the Storm Prediction Center's daily log of severe weather reports. Winds gusting up to 70 mph were reported in the region.

Several photos were posted to social media of tipped semis north of Sioux Falls....