Red Flag Warning

Locations Affected

Anaheim, CA ∙ Irvine, CA ∙ Santa Ana, CA ∙ San Bernardino, CA ∙ Riverside, CA ∙ Orange, CA ∙ Ontario, CA ∙ Rancho Cucamonga, CA ∙ Garden Grove, CA ∙ Escondido, CA

Headline

a particularly dangerous situation is expected for inland orange county, the santa ana mountains, inland empire, and san bernardino mountain foothills from 7 AM to 1 PM wednesday. a period of widespread, strong winds accompanied by very dry air and critically dry fuels will result in dangerous fire weather conditions. any new fire ignition in these areas will likely have very dangerous wildfire spread and behavior with great difficulty in containment that could impact life and property.
a red flag warning is in effect for tuesday afternoon through thursday due to strong santa ana winds and low relative humidity for the san bernardino county mountains, the inland empire, santa ana mountains, and inland orange county.
a red flag warning is in effect for late tuesday afternoon through wednesday due to strong santa ana winds and low relative humidity for coastal orange county.
a red flag warning is in effect for wednesday morning through thursday due to strong santa ana winds and low relative humidity for san diego and riverside county mountains, san diego valleys, and the san gorgonio pass.

Full Alert Message

URGENT - FIRE WEATHER MESSAGE National Weather Service San Diego CA 948 PM PST Mon Jan 6 2025 a particularly dangerous situation is expected for inland orange county, the santa ana mountains, inland empire, and san bernardino mountain foothills from 7 AM to 1 PM wednesday. a period of widespread, strong winds accompanied by very dry air and critically dry fuels will result in dangerous fire weather conditions. any new fire ignition in these areas will likely have very dangerous wildfire spread and behavior with great difficulty in containment that could impact life and property. a red flag warning is in effect for tuesday afternoon through thursday due to strong santa ana winds and low relative humidity for the san bernardino county mountains, the inland empire, santa ana mountains, and inland orange county. a red flag warning is in effect for late tuesday afternoon through wednesday due to strong santa ana winds and low relative humidity for coastal orange county. a red flag warning is in effect for wednesday morning through thursday due to strong santa ana winds and low relative humidity for san diego and riverside county mountains, san diego valleys, and the san gorgonio pass. ...red flag warning remains in effect from 4 AM wednesday to 6 PM PST thursday for strong gusty winds and low relative humidity... * winds, northeast winds 20 to 30 mph with gusts 40 to 55 mph in eastern portions of the san diego valleys, strongest winds will be near the foothills of the san diego mountains. northeast winds 30 to 50 mph with gusts 65 to 70 mph on the coastal slopes of the san diego and riverside county mountains. winds will weaken wednesday afternoon, but remain elevated with gusts 35 to 55 mph into thursday, strongest on the foothills of the mountains. * relative humidity, lowest daytime humidity of 10 to 20 percent wednesday. lowest daytime relative humidity on thursday will be 10 to 15 percent. * impacts, any fires that develop will likely spread rapidly. outdoor burning is not recommended. winds could damage outdoor property and will make for difficult driving conditions. * location, san diego county inland valleys, riverside county mountains-including the san jacinto ranger district of the san bernardino national forest and san diego county mountains- including the palomar and descanso ranger districts of the cleveland national forest. precautionary/preparedness actions... 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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