Air Quality Alert AIR QUALITY ALERT - SAN BERNADINO MTNS

Area wild fire threat

Santa Ana Threat

Fire Weather Index

Climate based Fire Danger
Recorded at Solar Noon


FWI: 18.2

HIGH FIRE DANGER IS FORECAST
All fine dead fuels ignite readily and fires start easily from most causes. Unattended brush and campfires are likely to escape. Fires spread rapidly and short-distance spotting is common. High-intensity burning may develop on slopes or in concentrations of fine fuels. Fires may become serious and their control difficult unless they are attacked successfully while small.
FIRE BEHAVIOUR:
Fire Weather Index ... HIGH (18)
Initial Spread .......... LOW (3)
Build Up Index ........ EXTREME (443)

FUELS MOISTURE:
Fine Fuel Moisture .. MODERATE (87)
Duff Moisture ......... EXTREME (371)
Drought ................ EXTREME (1368)


Chandler Burn Index



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) 1368 Drought: Extreme
Rain Today0.00
Rain Month0.00
Rain Year11.94Since January 1
Days No Rain124Days
Record No Rain124Days (Station records 2004 to Present)
Last Rain5/17/2024