Eastern Antelope Valley Foothills SEVERE Red Flag Warning Wed, Aug 20, 2025...

Eastern Antelope Valley Foothills

SEVERE Red Flag Warning

Wed, Aug 20, 2025 at 9:00 AM PDT ...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM PDT WEDNESDAY TO 9 PM PDT SATURDAY FOR AN UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF PRODUCING EXTREME FIRE BEHAVIOR FROM VERTICAL PLUME GROWTH...LOW RELATIVE HUMIDITY...AND LOCALLY BREEZY WINDS FOR PORTIONS OF THE MOUNTAINS AND FOOTHILLS OF LOS ANGELES AND VENTURA COUNTIES...  * TEMPERATURES...Unseasonably hot high temperatures, generally 95- 110 degrees and highest Thursday through Saturday, producing unseasonably unstable conditions.

* RELATIVE HUMIDITY...Minimum relative humidity 8-20 percent, lowest Wednesday and Thursday.

* THUNDERSTORMS...Isolated thunderstorms will be possible Friday through the weekend, and any accompanying lightning strikes will be capable of starting new fires on the peripheries of rain cores.

* WINDS...Southwest at 10-20 mph gusting to 20-25 mph over the western Antelope Valley Foothills and vicinity and in other wind- favored areas such as through passes and canyons. Lighter winds elsewhere. Passing outflow boundaries could bring sudden wind- shifts and increased fire-spread rates, even from distant thunderstorms.

* IMPACTS...If fire ignition occurs, conditions are favorable for extreme fire behavior and rapid fire growth, which could threaten life and property. Be aware of sudden re-direction of fires in response to passing outflow boundaries.

* ADDITIONAL DETAILS...Fire-weather headlines may eventually need to be extended into Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that fire-weather conditions are expected to be favorable for the development of extreme fire behavior. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out.

See readyforwildfire.org and wildfirerisk.org for information.