The National Weather Service has issued a red flag warning through 6 p.m. Saturday, with the "most critical fire weather conditions" expected just west of the San Gorgonio Pass.
"Strongest winds will be late tonight and Saturday morning . . . near Banning Pass," the Weather Service advised at noon Sept. 27.
The lowest humidity levels are expected Saturday, below 10 percent in some areas, with easterly winds around 25 miles per hour, and gusts to 35 mph through and below passes and canyons in inland Orange County, the Santa Ana Mountains and foothills, and the Inland Empire.
"Durations of combined humidity below 15 percent and wind speeds of 25 mph will be up to six hours," the Weather Service advised. "In most of these areas . . . fuels are ver dry."
A red flag warning means critical fire weather conditions are either occurring now or will shortly, according to the Weather Service. A combination of strong winds, low relative humidity, and warm temperatures have potential to contribute to extreme fire behavior. --Guy McCarthy
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