August 31, 2017 3:00 p.m.
A Red Flag Warning is in effect for much of Friday in the Umpqua Basin and most of southern Oregon.
Forecasters at the National Weather Service in Medford say that very dry and unstable air is possible in the area of the Horse Prairie Fire. The Urgent Fire Weather Message says that plume dominated fire activity is possible with extreme fire growth potential.
The Red Flag Warning is Friday from 1:00 p.m. to 8:00 p.m.