The Stud Horse Fire, located approximately two miles east of Winthrop, WA, was discovered on Thursday July 31, 2025, at around 3:18 p.m. The fire spread very rapidly resulting in Okanogan County issuing evacuation notices for nearby areas. The fire held its footprint overnight, but numerous firefighters, engines, and equipment are still working to contain and fully extinguish the fire. 

On August 1, 2025, SE Washington Type 3 Incident Management Team took command of the fire.