Spokane will be under a Red Flag Warning from 2 p.m. today until 5 a.m. Saturday morning. A Red Flag Warning signals a high risk for fire. Windy weather, low humidity and high temperatures contribute to the possibility of fires. Other areas under the warning are Whitman, Adams, Grant and Douglas counties and southern portions of Okanogan, Pend Oreille, Stevens and Ferry counties as well as the Okanogan Valley in Okanogan County.