Interactive NWS Alert
Radar valid at 400 pm PST, Jan 15th 2021
A period of Santa Ana winds is expected for Thursday evening
into Friday afternoon resulting in areas of critical fire weather
San Bernardino and Riverside County Valleys - The Inland Empire-
San Bernardino County Mountains-
Including The Mountain Top And Front Country Ranger Districts Of
The San Bernardino National Forest-Riverside County Mountains-
Including The San Jacinto Ranger District Of The San Bernardino
National Forest-Santa Ana Mountains-
Including The Trabuco Ranger District of the Cleveland National
Forest-Orange County Inland Areas-
1251 PM PST Wed Jan 13 2021
...RED FLAG WARNING IN EFFECT FROM 4 PM THURSDAY TO 4 PM PST
FRIDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITY FOR THE COASTAL
MOUNTAIN SLOPES OF THE SAN BERNARDINO, RIVERSIDE, AND SANTA ANA
MOUNTAINS, AS WELL AS PORTIONS OF INLAND ORANGE COUNTY AND THE
The National Weather Service in San Diego has issued a Red Flag
Warning...which is in effect from 4 PM Thursday to 4 PM PST
* WIND...North to northeast winds 20 to 25 mph with gusts to 50
mph. Isolated gusts up to 55 mph possible in wind prone
locations like below the Cajon Pass, San Gorgonio Pass, and
Santa Ana Mountain canyons.
* HUMIDITY...8 to 12 percent.
* TIMING...Thursday evening through late Friday afternoon.
Strongest winds will occur Friday morning.
* OUTLOOK...A period of weaker Santa Ana winds is expected late
Saturday into Sunday morning, followed by a period of
potentially stronger Santa Ana winds early next week.
* IMPACTS...Any fires that develop will likely spread rapidly.
Outdoor burning is not recommended.
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.
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