Hurricane-force winds caused major havoc in Southern Utah flipping at least 45 semi-trucks onto their side and injuring four drivers.
Highways were closed on Tuesday after winds of up to 120km/h pulled down trees, cut off power and destroyed property around Salt Lake City.
Farmington City was declared a state of emergency on Wednesday (local time) after the winds caused severe property damage and killed at least one person, according to local outlet KUTV.
Video was released of two trucks, one that had already flipped on its side, as another passing truck joined it.
Utah Highway Patrol were monitoring Interstate 15 where restrictions had been placed on high-profile vehicles due to the strong winds when the incident unfolded.
Filming the incident from their patrol car, two truck drivers who ignored the warning ended up on their side.
It’s unclear if drivers of the two trucks filmed were injured but police expect wind gusts to worsen into the evening and overnight, advising drivers to stay off the roads.
The unusual conditions come as the US Labor Day weekend holiday comes to a close.
“NOW is the time to get those camping trailers back home. Don't wait till the last minute this evening/tonight...75 mph wind gusts are no joke!” Utah Highway Patrol cautioned.
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