Active Weather Alerts
Extreme Heat Watch
Issued: 5:29 PM Aug. 18, 2025 – National Weather Service
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON THROUGH SATURDAY EVENING... * WHAT...Dangerously hot conditions with temperatures of 95 to 110 degrees possible. * WHERE...Calabasas and Agoura Hills, Central Ventura County Valleys, Eastern San Fernando Valley, Lake Casitas, Los Angeles County San Gabriel Valley, Ojai Valley, Santa Clarita Valley, Santa Susana Mountains, Southeastern Ventura County Valleys, and Western San Fernando Valley. * WHEN...From Wednesday afternoon through Saturday evening. * IMPACTS...There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Monitor the latest forecasts and warnings for updates. &&
Fire Weather Watch
Issued: 8:19 PM Aug. 17, 2025 – National Weather Service
...FIRE WEATHER WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH SATURDAY EVENING FOR AN UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF PRODUCING EXPLOSIVE 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... The National Weather Service in Los Angeles/Oxnard has issued a Fire Weather Watch for an unseasonably hot and unstable air mass capable of producing explosive 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, which is in effect from Wednesday morning through Saturday evening. * 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 Thursday through Saturday, and 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 and into portions of interior Santa Barbara and San Luis Obispo Counties. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Fire Weather Watch means that critical fire weather conditions are likely to occur in the coming days. Residents near wildland interfaces should prepare now on what to do if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information. &&
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