"It's blue sky days right now, but just keep in mind, when we have these high gusty winds coming into the county, trees and ...

Much of Oklahoma is under a High Wind Warning and a Red Flag Warning until 8pm Friday. Firefighters said any grass fires that spark may spread quickly and could be difficult to control.

“You start a fire in the grass, and they expect it to spread that many feet per minute, that fast with the wind,” Doggett said. “It’s extremely hard to contain that kind of spread rate.

Friday’s wind event includes very low humidity ... he said. “Mowing the grass, even pulling over on a shoulder in high grass, the heat from underneath your car can start a fire,” he said.

The standard wind measurement should be taken at 10 ... Ideally, your weather station should be placed 5 feet over short grass or low shrubs.