Violent Thunderstorms Race Through Bismarck and Mandan

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Vicious thunderstorms quickly ran through downtown Bismarck and Mandan Friday night.

The thunderstorms severely damaged buildings, including the Women, Infants, and Children building on 25th Street and Broadway in Bismarck. Rain began at around 8 p.m. in the Bismarck-Mandan area and ended shortly after 10.

Seventh and Ninth streets flooded severely under railroads bridges near East Main Avenue. Two cars were submerged in the 7th Street flooding and another was stuck in the 9th Street floodwaters.

Crews worked throughout the night to clear trees on multiple roads, including a large tree that blocked off all of South 12th Street near East Bowen Avenue. The trees split near the bottom of the trunk because of lightning and tropical storm-force winds.

MDU says more than 140 power lines are down in Bismarck and Mandan as of Saturday at 12:30 a.m. The power company says all available crews are working overnight to restore power. However, no timetable was given for when it will be restored.

The National Weather Service reported gusts as strong as 82 miles per hour at the height of the storm.

Hail also fell throughout the western and central part of the state. Viewer reports showed pictures of tennis ball-sized hail near Marmarth.

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