Another deadly traffic accident may be due to wintry weather in Oklahoma.

The Oklahoma Highway Patrol says 18-year-old John Lomon of Adair was killed when the car he was driving hydroplaned on a wet county road just north of Pryor in Mayes County.

Troopers say the car went off the road just after 9:15 last night and traveled more than 200 feet before hitting a tree and rolling onto its top. The car then skidded another 60 feet upside down before coming to a stop.

Lomon was dead on arrival at a Pryor hospital.

Authorities say 18 people have died in traffic accidents across Oklahoma since a winter storm hit the state ten days ago.