* IMPACTS...Any fires that develop will likely spread rapidly. * AFFECTED AREA...In California...Fire weather zone 280, and in Oregon, Fire weather zones 616 and 617. This includes the East Evans Creek and Castle fires as well as Roseburg, Toketee Falls, Elkton, Tiller, Happy Camp, Etna, and Fort Jones. * WIND...Northwest 10 to 15 mph with gusts up to 25 mph in the afternoons, becoming east to northeast overnight. * HUMIDITY...Minimum humidity 8 to 15 percent, with poor recoveries as low as 20 percent. * ADDITIONAL INFORMATION...Increasingly unstable conditions could further increase fire activity. * DETAILED URL...View the hazard area in detail at https://weather.gov/wrh/hazards?wfo=mfr