Hot, dry and unstable conditions look to peak on Thursday in The
Cascades. This will be followed by a strong cold front Friday night with the potential for dry breezy winds and a threat of dry thunderstorms. This
combination may lead to critical fire weather conditions with the
potential for increased fire spread of current fires and possible new fire starts. The National Weather Service in Spokane has issued a Red Flag Warning for hot, dry, and unstable conditions followed by dry gusty winds, which is in effect from noon Thursday to 11pm PDT Friday.
Timing: hot, dry and unstable conditions peak Thursday
afternoon and evening in the Cascades and over North Idaho
Friday. Dry and breezy winds increase Friday afternoon And
evening. Relative humidities: 8 to 18 percent in the lowlands And
valleys and 19 to 29 percent over the higher terrain. Temperatures: 95 to
105 in the Low Lands and Mid 80s to Mid 90s
in the Higher Terrain.
* Lightning: Slight Chance of Dry Thunderstorms Friday Night.
A Red Flag warning means that critical fire weather conditions
are either occurring now….or will shortly. A combination of
strong winds…low relative humidity…and warm temperatures can
contribute to extreme fire behavior.