Active Weather Alerts
Severe Thunderstorm Warning
Issued: 3:56 PM Dec. 24, 2025 – National Weather Service
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 830 AM PST FOR SOUTHEASTERN VENTURA AND NORTHWESTERN LOS ANGELES COUNTIES... At 752 AM PST, severe thunderstorms were located along a line extending from 12 miles northeast of Fillmore to near Chatsworth to Topanga State Park, moving east at 25 mph. HAZARD...70 mph wind gusts. SOURCE...Public and these widespread damaging wind gusts have been observed by several weather stations. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. Widespread wind damage is reported. There has been trees and powerlines reported down in Moorpark, and several areas elswhere inside the warning. Locations impacted include... Thousand Oaks... Simi Valley... North Hollywood... Encino... Woodland Hills... Malibu... Agoura Hills... Van Nuys... Chatsworth... Santa Clarita... Beverly Hills... Northridge... Santa Monica... Hollywood... Sylmar... Studio City... Interstate 405 through the Sepulveda Pass... Pacific Palisades... Porter Ranch... and Brentwood. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain alert for a possible tornado! Tornadoes can develop quickly from severe thunderstorms. If you spot a tornado go at once into the basement or small central room in a sturdy structure. observed wind gusts For your protection move to an interior room on the lowest floor of a building. Torrential rainfall is occurring with these storms, and may lead to flash flooding. Do not drive your vehicle through flooded roadways. && TORNADO...POSSIBLE; THUNDERSTORM DAMAGE THREAT...CONSIDERABLE; HAIL THREAT...RADAR INDICATED; MAX HAIL SIZE...<.75 IN; WIND THREAT...OBSERVED; MAX WIND GUST...70 MPH
Flood Advisory
Issued: 3:33 PM Dec. 24, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL NOON PST TODAY... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the following county, Los Angeles. Specifically, the San Gabriel Valley. * WHEN...Until noon PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. Rockslides and mudslides are possible. * ADDITIONAL DETAILS... - At 730 AM PST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. - Some locations that will experience flooding include... West Covina, Glendora, San Dimas, Alhambra, Pomona, Pasadena, Downtown Los Angeles, Altadena, La Verne, Hancock Park, Baldwin Park, Azusa, Covina, Monrovia, El Monte, Arcadia, Sierra Madre, San Gabriel, Diamond Bar and Montebello. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. In addition, Be aware of rock slides and mudslides near hilly and or mountainous terrain. &&
Flood Advisory
Issued: 3:12 PM Dec. 24, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL NOON PST TODAY... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the western and central portions of the Antelope Valley and adjacent foothills. * WHEN...Until noon PST. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 708 AM PST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 1 and 3 inches of rain have fallen. - Some locations that will experience flooding include... Acton, Lancaster, Palmdale, Quartz Hill, Elizabeth Lake, Lake Hughes, Lake Palmdale, Desert View Highlands and Highway 138 between Quail Lake and Lancaster. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. In addition, Be aware of rock slides and mudslides near hilly and or mountainous terrain. &&
Flash Flood Warning
Issued: 3:05 PM Dec. 24, 2025 – National Weather Service
The National Weather Service in Los Angeles/Oxnard has issued a * Flash Flood Warning for... Northwestern Los Angeles County in southwestern California... Northeastern Ventura County in southwestern California... * Until noon PST. * At 704 AM PST, local law enforcement reported heavy rain, rockslides, mudslides, and washed out roadways across the warned area. Flash flooding is ongoing. HAZARD...Life threatening flash flooding. Heavy rain producing flash flooding including mudslides, rockslides, landslides, and washed out roadways. SOURCE...Law enforcement reported. IMPACT...Life threatening flash flooding of creeks and streams, urban areas, highways, streets and underpasses. * Some locations that will experience flash flooding include... Santa Clarita, eastern Lockwood Valley, Pyramid Lake, Interstate 5 over the Grapevine, Castaic Lake, Lake Piru, Gorman, Highway 138 between Quail Lake and Lancaster, Alamo Mountain and Frazier Mountain. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid flooded roads. Be aware of rock slides, mudslides, and possibly debris flows. && FLASH FLOOD...OBSERVED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE; EXPECTED RAINFALL RATE...0.5-1.5 INCHES IN 1 HOUR
Flash Flood Warning
Issued: 3:03 PM Dec. 24, 2025 – National Weather Service
The National Weather Service in Los Angeles/Oxnard has issued a * Flash Flood Warning for... Southwestern Los Angeles County in southwestern California... Southeastern Ventura County in southwestern California... * Until noon PST. * At 703 AM PST, Doppler radar and automated rain gauges indicated heavy rain falling across the warned area. The expected rainfall rate is 0.5 to 1 inch in 1 hour. Additional rainfall amounts up to 1 inch are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by heavy rain. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Thousand Oaks, Simi Valley, Camarillo, Malibu, Woodland Hills, Agoura Hills, Chatsworth, Northridge, Encino, Van Nuys, Santa Monica, Beverly Hills, North Hollywood, Universal City, Hollywood, Burbank, Griffith Park, Pasadena and Alhambra. PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. && FLASH FLOOD...RADAR AND GAUGE INDICATED; EXPECTED RAINFALL RATE...0.5-1 INCH IN 1 HOUR
Flash Flood Warning
Issued: 2:59 PM Dec. 24, 2025 – National Weather Service
The National Weather Service in Los Angeles/Oxnard has issued a * Flash Flood Warning for... Northwestern including the Interstate 5 Corridor in Los Angeles County in southwestern California... Northern Ventura County Mountains in southwestern California... * Until noon PST. * At 659 AM PST, Doppler radar indicated heavy rain across the warned area. The expected rainfall rate is 0.5 to 1.25 inches in 1 hour. Significant flooding is already occurring. Landslides and mudslides have already been reported. HAZARD...Flash flooding caused by showers and thunderstorms. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Landslides and mudslides are likely and have been reported. * Some locations that will experience flash flooding include... Santa Clarita, Lockwood Valley, Alamo Mountain, Frazier Mountain, Interstate 5 over the Grapevine, Gorman, Pyramid Lake, Lake Piru, Castaic Lake, Reyes Peak, Highway 138 between Quail Lake and Lancaster and Highway 33 from Lockwood Valley Road to the Santa Barbara County line. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid flooded roads. Be aware of rock slides, mudslides, and possibly debris flows. && FLASH FLOOD...RADAR AND GAUGE INDICATED
Flash Flood Warning
Issued: 2:35 PM Dec. 24, 2025 – National Weather Service
...FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL NOON PST TODAY FOR EAST CENTRAL LOS ANGELES COUNTY... At 635 AM PST, Doppler radar and automated rain gauges indicated thunderstorms producing heavy rain across the warned area. The expected rainfall rate is 0.5 to 1.25 inches in 1 hour. Flash flooding is ongoing or expected to begin shortly. HAZARD...Life threatening flash flooding. Heavy rain producing flash flooding. Rock slides and mud slides. SOURCE...Radar and automated gauges. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. Landslides, mudslides, and debris flows are possible over and near Bridge Burn Scar. Some locations that will experience flash flooding include... Wrightwood, Angeles Crest Highway between Mount Waterman and Wrightwood and Big Pines. Also, this includes the Bridge Burn Scar. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid flooded roads. Be aware of rock slides, mudslides, and possibly debris flows. && FLASH FLOOD...RADAR AND GAUGE INDICATED; FLASH FLOOD DAMAGE THREAT...CONSIDERABLE; EXPECTED RAINFALL RATE...0.5-1.25 INCHES IN 1 HOUR
Flash Flood Warning
Issued: 1:35 PM Dec. 24, 2025 – National Weather Service
The National Weather Service in Los Angeles/Oxnard has issued a * Flash Flood Warning for... Central Los Angeles County in southwestern California... * Until noon PST Wednesday. * At 535 AM PST, Doppler radar indicated heavy rain across the warned area. The expected rainfall rate is 0.5 to 1.25 inches in 1 hour. Flash flooding is already occurring. Significant flooding is already occurring. HAZARD...Flash flooding caused by heavy rain. SOURCE...Law enforcement reports and Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Acton, Burbank, Mount Wilson, Pasadena, North Hollywood, Santa Clarita, Northridge, Chatsworth, Altadena, La Canada Flintridge, Sunland, Glendale, Pacoima, Sylmar, Granada Hills, Porter Ranch, La Crescenta, Sun Valley, Angeles Crest Highway between Mount Wilson and Mount Waterman and San Fernando. PRECAUTIONARY/PREPAREDNESS ACTIONS... Avoid flooded roads. Be aware of rock slides and mudslides. && FLASH FLOOD...RADAR INDICATED; EXPECTED RAINFALL RATE...0.5-1.25 INCHES IN 1 HOUR
Flood Advisory
Issued: 1:07 PM Dec. 24, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the following county, Central and southeast Los Angeles County. * WHEN...Until 400 PM PST Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 505 AM PST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 1 inch of rain has fallen. - Some locations that will experience flooding include... Long Beach, Alhambra, Downtown Los Angeles, Whittier, Pasadena, Inglewood, Griffith Park, Hollywood, Culver City, Universal City, Torrance, Burbank, Beverly Hills, West Covina, Manhattan Beach, Hermosa Beach, Redondo Beach, Venice and North Hollywood. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. &&
Flood Advisory
Issued: 11:38 AM Dec. 24, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the following county, Los Angeles. This also includes the Bridge and Eaton Burn scars. * WHEN...Until 400 PM PST Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 336 AM PST, Doppler radar and automated rain gauges indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 1.2 inches of rain have fallen. - Some locations that will experience flooding include... Acton, Wrightwood, Mount Wilson, Pasadena, Burbank, Glendora, North Hollywood, Van Nuys, Santa Clarita, Altadena, La Canada Flintridge, Glendale, Sunland, Pacoima, Sylmar, Valyermo, Angeles Crest Highway between Mount Wilson and Mount Waterman, La Crescenta, Sierra Madre and Monrovia. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be aware of your surroundings and do not drive on flooded roads. Campers should avoid low-lying areas. &&
Flood Advisory
Issued: 10:45 AM Dec. 24, 2025 – National Weather Service
...FLOOD ADVISORY IN EFFECT UNTIL 4 PM PST THIS AFTERNOON... * WHAT...Flooding caused by excessive rainfall is expected. * WHERE...A portion of southwest California, including the following counties, the western portion of Los Angeles and the northern Ventura County Mountains. * WHEN...Until 400 PM PST Wednesday. * IMPACTS...Minor flooding in low-lying and poor drainage areas. Water over roadways. * ADDITIONAL DETAILS... - At 242 AM PST, Doppler radar and automated rain gauges indicated heavy rain. Minor flooding is ongoing or expected to begin shortly in the advisory area. Up to 1 inch of rain has fallen. - Some locations that will experience flooding include... Thousand Oaks, Malibu, Chatsworth, Santa Clarita, Agoura Hills, Northridge, Woodland Hills, Van Nuys, Encino, Santa Monica, Porter Ranch, Westlake Village, Canoga Park, Granada Hills, Calabasas, Malibu Creek State Park, Sylmar, Lockwood Valley and Topanga State Park. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding. In hilly terrain there are hundreds of low water crossings which are potentially dangerous in heavy rain. Do not attempt to cross flooded roads. Find an alternate route. &&
High Surf Advisory
Issued: 10:31 AM Dec. 24, 2025 – National Weather Service
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 AM PST SATURDAY... * WHAT...Large breaking waves of 6 to 10 feet with dangerous rip currents. * WHERE...Ventura County Beaches, Malibu Coast and Los Angeles County Beaches. * WHEN...Until 11 AM PST Saturday. * IMPACTS...There is an increased risk for ocean drowning. Rip currents can pull swimmers and surfers out to sea. Large breaking waves can cause injury, wash people off beaches and rocks, and capsize small boats near shore. * ADDITIONAL DETAILS...Minor to potentially isolated moderate coastal flooding for south-facing beaches especially during high tides. This is expected to occur through Thursday due to strong southerly winds. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water due to dangerous surf conditions, or stay near occupied lifeguard towers. Rock jetties can be deadly in such conditions, stay off the rocks. &&
Flood Watch
Issued: 8:20 AM Dec. 24, 2025 – National Weather Service
...FLOOD WATCH NOW IN EFFECT THROUGH FRIDAY AFTERNOON... * WHAT...Significant and widespread flooding caused by excessive rainfall will be likely, with potential debris flow impacts across recent burn scars. * WHERE...A portion of southwest California, including the following areas, Antelope Valley, Calabasas and Agoura Hills, Catalina and Santa Barbara Islands, Central Ventura County Valleys, Cuyama Valley, Eastern Antelope Valley Foothills, Eastern San Fernando Valley, Eastern San Gabriel Mountains, Eastern Santa Monica Mountains Recreational Area, Interstate 5 Corridor, Lake Casitas, Los Angeles County Beaches, Los Angeles County Inland Coast including Downtown Los Angeles, Los Angeles County San Gabriel Valley, Northern Ventura County Mountains, Ojai Valley, Palos Verdes Hills, San Luis Obispo County Beaches, San Luis Obispo County Inland Central Coast, San Luis Obispo County Interior Valleys, San Luis Obispo County Mountains, Santa Barbara County Central Coast Beaches, Santa Barbara County Inland Central Coast, Santa Barbara County Interior Mountains, Santa Barbara County Southeastern Coast, Santa Barbara County Southwestern Coast, Santa Clarita Valley, Santa Lucia Mountains, Santa Susana Mountains, Santa Ynez Mountains Eastern Range, Santa Ynez Mountains Western Range, Santa Ynez Valley, Southeastern Ventura County Valleys, Southern Salinas Valley, Southern Ventura County Mountains, Ventura County Beaches, Ventura County Inland Coast, Western Antelope Valley Foothills, Western San Fernando Valley, Western San Gabriel Mountains and Highway 14 Corridor and Western Santa Monica Mountains Recreational Area. * WHEN...Through Friday afternoon. * IMPACTS...This prolonged strong Atmospheric River storm system will bring periods of heavy rain from late Tuesday into Thursday evening. Potential flooding impacts include the threat of significant and widespread urban roadway flooding, a high risk of major rock/mudslides, and rapid rises in creeks, streams, and rivers which will likely lead to swift water rescues. The recent burn scars will be at risk for debris flows, possibly damaging. These flooding impacts will likely lead to significant travel delays and road closures during this busy holiday travel period. * ADDITIONAL DETAILS... - Heavy rainfall with possible thunderstorms is expected with high rainfall rates, potentially exceeding one inch per hour during the peak of the event Tuesday night into Wednesday across favored south facing slopes and near thunderstorms. Another round of heavier rain and thunderstorms will be possible on Thursday. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be alert for possible Flood Warnings. Those living in areas prone to flooding should be prepared to take action should flooding develop. &&
Marine Weather Statement
Issued: 4:09 AM Dec. 24, 2025 – National Weather Service
...DANGEROUS MARINE CONDITIONS ACROSS THE COASTAL WATERS OF SOUTHWEST CALIFORNIA THROUGH THURSDAY EVENING DUE TO WIDESPREAD GALE FORCE WINDS WITH ASSOCIATED STEEP SEAS AND THREAT OF THUNDERSTORMS AND ISOLATED WATERSPOUTS... A powerful Atmospheric River storm system will bring dangerous marine conditions to the coastal waters through Thursday evening. Widespread gale force south to southeast winds will persist into Wednesday, with another round of Gale force winds possible on Thursday. The strong winds will bring dangerous and very steep, choppy seas. The storm will also bring the threat of thunderstorms, some of which could be strong, with locally damaging winds. Conditions are also favorable for isolated waterspouts. Monitor NOAA Weather Radio for the latest information, forecasts, and warnings. This will likely be a dangerous storm and mariners should exercise extreme caution and are urged to remain in safe harbor for the duration of the storm.
Gale Warning
Issued: 3:55 AM Dec. 24, 2025 – National Weather Service
...GALE WARNING NOW IN EFFECT UNTIL 3 PM PST WEDNESDAY... * WHAT...South winds 20 to 30 kt with gusts up to 40 kt and combined seas 6 to 11 ft when conditions are worst. * WHERE...Portions of the coastal waters of southwest California. * WHEN...Until 3 PM PST Wednesday. * IMPACTS...Strong winds will create dangerous sea conditions which could capsize or damage small and large vessels. * ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX) for more. PRECAUTIONARY/PREPAREDNESS ACTIONS... Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for severe conditions. &&
Wind Advisory
Issued: 8:19 PM Dec. 23, 2025 – National Weather Service
...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THURSDAY... * WHAT...South to southeast winds 20 to 35 mph with gusts 35 to 55 mph likely. * WHERE...Most coastal and valley areas of Los Angeles and Ventura counties. * WHEN...Until 3 PM PST Thursday. * IMPACTS...Gusty winds will blow around unsecured objects. There will be the risk of downed trees, especially considering the very wet soils that will occur this week. Travel will be difficult, especially for high profile vehicles. PRECAUTIONARY/PREPAREDNESS ACTIONS... Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. &&
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