Excessive Heat Warning EXCESSIVE HEAT WARNING - SAN DIEGO VALLEYS  - SAN DIEGO MOUNTAINS  - INLAND EMPIRE  - SAN BERNADINO MTNS  - RIVERSIDE MOUNTAINS  - SAN DIEGO DESERTS  - COACHELLA VALLEY
Excessive Heat Watch EXCESSIVE HEAT WATCH - ORANGE COUNTY INLAND

Area wild fire threat

Lookout Cams Santa Ana Threat Red Flag Stations

Today's Fire Danger

Using current conditions and weather patterns over the last 52 days
Fire danger is calculated at Solar Noon each day
Forecast is for time of highest risk, usually mid-late afternoon

EXTREME FIRE DANGER IS FORECAST
Fires start quickly, spread furiously, and burn intensely. All fires are potentially serious. Development into high intensity burning will usually be faster and occur from smaller fires than in the very high fire danger class. Direct attack is rarely possible and may be dangerous except immediately after ignition. Fires that develop headway in heavy slash or in conifer stands may be unmanageable while the extreme burning condition lasts. Under these conditions the only effective and safe control action is on the flanks until the weather changes or the fuel supply lessens.
FWI Details

FIRE BEHAVIOUR:
Fire Weather Index ... EXTREME (34)
Initial Spread .......... MODERATE (8)
Build Up Index ........ EXTREME (256)

FUELS MOISTURE:
LAST RAIN ............ 42 Days (5/2/2021)
Fine Fuel Moisture .. VERY HIGH (91)
Duff Moisture ......... EXTREME (192)
Drought ................ EXTREME (958)


Current Chandler Burn Index

Based on current temperature and humidity


CURRENT FIRE RISK IS LOW

Fuels do not ignite readily from small firebrands although a more intense heat source, such as lightning, may start fires in duff or punky wood. Fires in open cured grasslands may burn freely a few hours after rain, but woods fires spread slowly by creeping or smoldering, and burn in irregular fingers. There is little danger of spotting.

Image shows current CBI Fire Danger, Current Temp, Humidity, CBI rating, CBI spread component and intensity component.



National Fire Risk Assessment

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National Fire Risk National Fire Risk


Drought/Rain

ElementValueDescription
Drought (FWI) 958 Drought: Extreme
Rain Today0.00
Rain Month0.00
Rain Year4.46Since January 1
Days No Rain42Days
Record No Rain137Days (Station records 2004 to Present)
Last Rain5/2/2021