The Tri-Cities will be under a red flag fire warning starting at 2 p.m. Wednesday because of dry, breezy conditions.
Any wildfire could spread quickly, according to the National Weather Service.
An upper level trough is approaching the Mid-Columbia, which will cause winds to increase through the day and humidity to decrease, according to the weather service.
A southwest wind of about 15 mph with gusts of 18 mph is forecast for the Tri-Cities Wednesday afternoon.
Early Wednesday night gusts as high as 29 mph are forecast.
By early Thursday morning the red flag fire warning is expected to be lifted as winds degrease to 6 to 11 mph and humidity increases.