8 a.m. Sunday UPDATE
The fire grew overnight to 51,468 acres, the U.S. Forest Service said.
“Fire growth is expected to spread in all directions as red flag Warning for thunderstorms and lightning are in the forecast,” the Forest Service said in its Sunday morning update.
The fire is still 1% contained.
Meanwhile, the Shackleford Fire, which started Saturday night, is at 27 acres with zero percent containment.
All evacuation orders and warnings remain in place for the McKinney Fire, said Amy Travis of the Siskiyou County Office of Emergency Services.
“We will re-evaluate those mid-day to see where we are at and where the fire is headed,” she said. “At this point in time they are working diligently to put in fire breaks and dozer lines and the prime emphasis is to protect the city of Yreka.”