Mount Shasta Herald An evacuation warning was in effect Tuesday through Wednesday for residents in the Whitney Creek area after a flash flood tumbled water and mud in the Lava Fire burn scar. The Siskiyou County Sheriff’s office issued the warning at 6 p.m. Tuesday for areas of Juniper Terrace Road and Rising Hill Road in the Mount Shasta Vista subdivision due to a flash flood in Whitney Creek. It was lifted in the late afternoon on Wednesday. Scroll down to read the updates. 5 p.m. Wednesday: Whitney Creek evacuation warning lifted The Siskiyou County Sheriff’s Office has lifted the evacuation warning in effect for communities in the Whitney Creek area.