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Fire Weather Index

Recorded at Solar Noon
Forecast is for hottest time of day, 2-4 PM

Wild Fire Risk
VERY HIGH FIRE DANGER IS FORECAST
Fires start easily from all causes and, immediately after ignition, spread rapidly and increase quickly in intensity. Spot fires are a constant danger. Fires burning in light fuels may quickly develop high intensity characteristics such as long-distance spotting and fire whirlwinds when they burn into heavier fuels.
FWI - Details and History

FIRE BEHAVIOUR:
Fire Weather Index ... VERY HIGH (23)
Initial Spread .......... MODERATE (4)
Build Up Index ........ EXTREME (441)

FUELS MOISTURE:
Fine Fuel Moisture .. HIGH (88)
Duff Moisture ......... EXTREME (335)
Drought ................ EXTREME (1618)

FIRE DANGER CODES (FFDC, SFDC, GFDC)


The FWI is further refined into indices that represent the Fire Intensity likely in the three vegetation types (Forest, Scrub & Grasses). These three codes are divided into five fire danger classes (Low, Moderate, High, Very high & Extreme) and calculate the fire intensity in kilowatts per square metre (kw/m^2).

FOREST ................ VERY HIGH, (3892)
Based on predicted generated "fire intensity (kw/m^2)" in highly flammable forest type vegetation (conifer, eucalypt). This code denotes how difficult it would be to control a fire in this vegetation type should one start.
SCRUB ................. EXTREME, (7959)
Based on predicted generated "fire intensity (kw/m^2)" in flammable scrub type vegetation (tea tree, broom, gorse, manuka). This code denotes how difficult it would be to control a fire in this vegetation type should one start.
GRASS.................HIGH, (689)
Based on predicted generated "fire intensity (kw/m^2)" in grass type vegetation (dry grass, tussock). This code denotes how difficult it would be to control a fire in this vegetation type should one start.

Regional Fire Risk Assessment

Hourly Fire Risk Red Flag Warnings

National Fire Risk Assessment

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National Fire Risk National Fire Risk

SANTA ANA WILDFIRE THREAT INDEX

Drought/Rain

ElementValueDescription
Drought (FWI) 1618 Drought: Extreme
Rain Today0.00
Rain Month0.01
Rain Year0.14From July 1
Days No Rain1Days
Record No Rain124Days (Station records 2004 to Present)
Last Rain10/20/2017