Chandler Burn Index*
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CURRENT FIRE RISK IS MODERATE Fires can start from most accidental causes but, with the exception of lightning fires in some areas, the number of starts is generally low. Fires in open cured grasslands will burn briskly and spread rapidly on windy days. Timber fires spread slowly to moderately fast. The average fire is of moderate intensity, although heavy concentrations of fuel, especially draped fuel, may burn hot. Short-distance spotting may occur, but is not persistent. Fires are not likely to become serious and control is relatively easy. Image shows current CBI Fire Danger, Current Temp, Humidity, CBI rating, CBI spread component and intensity component. | |
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*This implementation of the Chandler Burning Index uses the current air temperature and relative humidity to create a numerical index of fire danger. Then the numerical value is used to determine a fire danger adjective. CBI 0-50 = LOW, 50-75 = MODERATE, 75-90 = HIGH, 90-97.5 = Very HIGH, and >97.5 = EXTREME. The CBI is linearly sensitive to temperature, but exponentially sensitive to RH, so a small change in RH can make a big change in the CBI number. | |
Wild Fire Risk | |
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Observed and Forecast Fire Risk. | |
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SANTA ANA WILDFIRE THREAT INDEX
Drought/Rain
| Element | Value | Description |
|---|---|---|
| Drought (FWI) | 1651 | Drought: Extreme |
| Rain Today | 0.00 | |
| Rain Month | 0.00 | |
| Rain Year | 0.00 | Since January 1 |
| Rain Last Year | 0.39 | Jan 1st - this date |
| Days No Rain | 16 | Days |
| Last Rain | 12/30/2024 |