Red Flag Warning
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
312 WWUS86 KLOX 072237 RFWLOX URGENT - FIRE WEATHER MESSAGE National Weather Service Los Angeles/Oxnard CA 237 PM PST Tue Jan 7 2025 ...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG WARNING IN EFFECT UNTIL 4 PM WEDNESDAY DUE TO DAMAGING NORTH TO NORTHEAST WINDS AND LOW HUMIDITIES FOR THE FOLLOWING AREAS: SAN GABRIEL MOUNTAINS/ SAN GABRIEL AND SAN FERNANDO VALLEYS (ESPECIALLY FOOTHILLS)/ BEVERLY AND HOLLYWOOD HILLS/ COASTAL AREAS ADJACENT TO SEPULVEDA PASS / SANTA MONICA MOUNTAINS / SANTA SUSANA MOUNTAINS / MALIBU / EASTERN VENTURA VALLEY (MAINLY NEAR SIMI VALLEY/MOORPARK) -- THIS WILL LIKELY BE A LIFE THREATENING, DESTRUCTIVE, AND WIDESPREAD WINDSTORM... ...RED FLAG WARNINGS IN EFFECT FOR LOS ANGELES COUNTY AND MUCH OF VENTURA COUNTY---SEE TIMINGS IN HEADLINES BELOW... ...RED FLAG WARNING IN EFFECT FOR SANTA BARBARA MOUNTAINS INCLUDING EASTERN SANTA YNEZ RANGE INTO WEDNESDAY... ***THIS IS A PARTICULARLY DANGEROUS SITUATION (PDS) FOR PORTIONS OF LOS ANGELES AND VENTURA COUNTIES!*** .A very strong, widespread, and destructive north to northeast windstorm will bring Extremely Critical fire weather conditions to many areas of Los Angeles and eastern Ventura counties into early Wednesday afternoon. This is a PARTICULARLY DANGEROUS SITUATION (PDS) Red Flag Warning event in many areas, with the combination of very strong upper level wind support, tightening offshore pressure gradients (LAX-Daggett peaking at - 7 to -8 mb), and moderate cold air advection. The strongest winds with this event are expected to be this evening into early Wednesday afternoon when widespread damaging wind gusts of 50 to 80 mph are likely. The San Gabriel mountains, Santa Susana mountains, and foothills of the San Gabriel/San Fernando Valleys will likely see areas of destructive wind gusts between 80 and 100 mph! Due to the very strong upper level wind support and high risk for strong mountain wave activity, typical wind sheltered areas such as portions of the LA basin and San Gabriel Valley. The strong winds will likely result in widespread downed trees/powerlines, as well as widespread power outages. THIS WILL LIKELY BE THE MOST DESTRUCTIVE WINDSTORM SEEN SINCE 2011 WINDSTORM THAT DID EXTENSIVE DAMAGE TO PASADENA AND NEARBY FOOTHILLS OF THE SAN GABRIEL VALLEY. ANY COMMUNITIES ALONG HIGHWAY 118 AND 210 CORRIDORS WILL BE AT HIGHEST RISK FOR COMPARABLE WIND DAMAGE. Humidity levels are also expected to lower to between 10 and 20 percent in many areas by this evening, potentially lowering into single digits in some areas by Wednesday. AREAS IN A RED FLAG WARNING (ESPECIALLY DURING THE PDS TIME FRAME) WILL HAVE INCREASED RISK FOR LARGE FIRES WITH VERY RAPID FIRE SPREAD, EXTREME FIRE BEHAVIOR, AND LONG RANGE SPOTTING. Long duration Red Flag Warnings are in effect for much of Los Angeles and Ventura counties Tuesday through Thursday, with Fire Weather Watches in effect Thursday night into Friday. There is a shorter duration of Red Flag conditions across the mountains of Santa Barbara county into Wednesday. CAZ362-369-370-372>374-548-110100- /O.CON.KLOX.FW.W.0001.000000T0000Z-250110T0200Z/ /O.CON.KLOX.FW.A.0001.250110T0200Z-250111T0100Z/ Malibu Coast-Western Santa Monica Mountains Recreational Area- Eastern Santa Monica Mountains Recreational Area- Western San Fernando Valley-Eastern San Fernando Valley- Southeastern Ventura County Valleys- Los Angeles County San Gabriel Valley- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THURSDAY FOR THE FOLLOWING AREAS: SAN GABRIEL AND SAN FERNANDO VALLEYS (ESPECIALLY FOOTHILLS)/ BEVERLY AND HOLLYWOOD HILLS/ COASTAL AREAS ADJACENT TO SEPULVEDA PASS / SANTA MONICA MOUNTAINS / MALIBU / EASTERN VENTURA VALLEY (MAINLY NEAR SIMI VALLEY/MOORPARK)...RED FLAG WARNING IN EFFECT FOR ALL OTHER TIMES THROUGH 6 PM THURSDAY IN THESE SAME AREAS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON FOR POTENTIAL WEAK TO MODERATE OFFSHORE WINDS AND LOW RELATIVE HUMIDITY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES... * WINDS...Very strong/damaging north to northeast winds into Wednesday, likely peaking in many areas between this afternoon and Wednesday morning when there is a high risk for strong mountain wave wind activity. During this peak, sustained winds of 35 to 50 mph and widespread damaging gusts of 50 to 80 mph can be expected. Strongest winds likely across the Highways 118 and 210 corridors, including the foothills of the San Gabriel/San Fernando Valleys, and Simi Valley where very powerful and destructive wind gusts of 80 to 100 mph will be likely. Some particular location of greatest concern include Sylmar, Porter Ranch, San Fernando, Burbank, Glendale eastward to foothill communities such as La Crescenta, Altadena, Monrovia, Pasadena, Azusa. and Glendora. Moderate north to northeast winds will likely persist Thursday with gusts of 30 to 50 mph, with some weakening possible by Friday. * RELATIVE HUMIDITY...Falling to 10 to 20 percent by this evening afternoon/evening. Humidities will potentially fall to single digits in some areas from Wednesday into Friday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be a high risk for widespread downed trees and powerlines, as well as widespread power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. 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. 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. && $$ CAZ375-379-380-110100- /O.CON.KLOX.FW.W.0001.000000T0000Z-250110T0200Z/ /O.CON.KLOX.FW.A.0001.250110T0200Z-250111T0100Z/ Santa Susana Mountains- Western San Gabriel Mountains and Highway 14 Corridor- Eastern San Gabriel Mountains- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THURSDAY FOR THE FOLLOWING AREAS: SAN GABRIEL MOUNTAINS AND SANTA SUSANA MOUNTAINS...RED FLAG WARNING IN EFFECT FOR ALL OTHER TIMES FROM 4 AM TUESDAY TO 6 PM THURSDAY IN THESE SAME AREAS... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON FOR POTENTIAL WEAK TO MODERATE OFFSHORE WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN GABRIEL MOUNTAINS AND SANTA SUSANA MOUNTAINS... * WINDS...Very strong/damaging north to northeast winds into Wednesday, likely peaking in many areas between this evening and early Wednesday afternoon when there is a high risk for strong mountain wave wind activity. During this peak, sustained winds of 40 to 60 mph and widespread damaging gusts of 70 to 100 mph can be expected. Moderate to locally strong north to northeast winds will likely persist Thursday with gusts of 40 to 60 mph, with some weakening possible by Friday. * RELATIVE HUMIDITY...Falling to 10 to 20 percent by this evening. Humidities will potentially fall to single digits in some areas from Wednesday into Friday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be the potential for downed trees and powerlines, as well as power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. 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. 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. && $$ CAZ288-358-371-376-378-110100- /O.CON.KLOX.FW.W.0001.000000T0000Z-250110T0200Z/ /O.CON.KLOX.FW.A.0001.250110T0200Z-250111T0100Z/ Santa Clarita Valley-Central Ventura County Valleys- Calabasas and Agoura Hills-Southern Ventura County Mountains- Interstate 5 Corridor- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THURSDAY FOR STRONG/DAMAGING NORTH TO NORTHEAST WINDS AND LOW RELATIVE HUMIDITY FOR SANTA CLARITA VALLEY, THE CENTRAL VENTURA COUNTY VALLEYS, CALABASAS, SOUTHERN VENTURA MOUNTAINS, AND INTERSTATE 5 CORRIDOR... ...FIRE WEATHER WATCH REMAINS IN EFFECT FROM THURSDAY EVENING THROUGH FRIDAY AFTERNOON FOR POTENTIAL WEAK TO MODERATE OFFSHORE WINDS AND LOW RELATIVE HUMIDITY FOR MUCH OF LOS ANGELES AND VENTURA COUNTIES... * WINDS...Strong/damaging north to northeast winds into Wednesday, likely peaking in many areas between this evening and Wednesday morning when there is the potential for strong mountain wave wind activity. During this peak, sustained winds of 35 to 50 mph and widespread damaging gusts of 50 to 70 mph can be expected. Moderate north to northeast winds will likely persist Thursday with gusts of 30 to 50 mph, with some weakening possible by Friday. * RELATIVE HUMIDITY...Falling to 10 to 20 percent by this evening. Humidities will potentially fall to single digits in some areas from Wednesday into Friday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be a high risk for widespread downed trees and powerlines, as well as widespread power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. 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. 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. && $$ CAZ354-355-377-100200- /O.CON.KLOX.FW.W.0001.000000T0000Z-250110T0200Z/ Ventura County Beaches-Ventura County Inland Coast- Northern Ventura County Mountains- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST THURSDAY FOR MODERATE TO STRONG/DAMAGING NORTHEAST WINDS AND LOW RELATIVE HUMIDITY FOR THE VENTURA COUNTY COAST AND NORTHERN VENTURA COUNTY MOUNTAINS... * WINDS...Northeast 20 to 35 mph with gusts of 40 to 60 mph across the coast, and 25 to 45 mph with damaging gusts to 70 mph in the northern Ventura mountains. Strongest winds into Wednesday morning, with moderate offshore winds persisting into Thursday, and possibly Friday. For the coastal plain, strongest winds likely focused from Camarillo to Point Mugu. * RELATIVE HUMIDITY...Falling to between 15 and 25 percent on Tuesday, then 10 to 20 percent on Wednesday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be the potential for downed trees and powerlines, as well as power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information. && $$ CAZ366-368-090000- /O.CON.KLOX.FW.W.0001.000000T0000Z-250109T0000Z/ Los Angeles County Beaches- Los Angeles County Inland Coast including Downtown Los Angeles- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 4 PM PST WEDNESDAY FOR THE FOLLOWING AREAS: SAN GABRIEL AND SAN FERNANDO VALLEYS (ESPECIALLY FOOTHILLS)/ BEVERLY AND HOLLYWOOD HILLS/ COASTAL AREAS ADJACENT TO SEPULVEDA PASS / SANTA MONICA MOUNTAINS / MALIBU / EASTERN VENTURA VALLEY (MAINLY NEAR SIMI VALLEY/MOORPARK)... * WINDS...Strong/damaging north to northeast winds from late Tuesday afternoon into Wednesday with sustained winds of 25 to 40 mph and damaging wind gusts of 50 to 60 mph likely. Strongest winds likely in the Hollywood Hills, Beverly Hills, and coastal areas adjacent to Sepulveda Pass. * RELATIVE HUMIDITY...Humidities likely falling to between 10 and 20 percent by this evening. There is also a chance of single digit humidities on Wednesday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be a high risk for downed trees and powerlines, as well as widespread power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. 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. && $$ CAZ352-353-090200- /O.CON.KLOX.FW.W.0001.000000T0000Z-250109T0200Z/ Santa Ynez Mountains Eastern Range- Santa Barbara County Interior Mountains- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST WEDNESDAY FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE HUMIDITY FOR THE SANTA BARBARA COUNTY MOUNTAINS AND EASTERN SANTA YNEZ MOUNTAINS... * WINDS...Northeast sustained winds 20 to 35 mph with gusts of 40 to 50 mph. * RELATIVE HUMIDITY...Falling to between 10 and 20 percent. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There is also the potential for for downed trees and powerlines, as well as power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information. && $$ CAZ381>383-090200- /O.CON.KLOX.FW.W.0001.000000T0000Z-250109T0200Z/ Western Antelope Valley Foothills- Eastern Antelope Valley Foothills-Antelope Valley- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST WEDNESDAY FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE HUMIDITY FOR THE ANTELOPE VALLEY AND ADJACENT FOOTHILLS... * WINDS...Northeast 20 to 30 mph with gusts 45 to 55 mph, strongest during daytime hours, especially in the foothills. * RELATIVE HUMIDITY...Falling to 10 to 20 percent by Wednesday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. 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. && $$ CAZ287-367-090200- /O.CON.KLOX.FW.W.0001.250108T0000Z-250109T0200Z/ Catalina and Santa Barbara Islands-Palos Verdes Hills- 237 PM PST Tue Jan 7 2025 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PST WEDNESDAY FOR STRONG/DAMAGING WINDS AND LOW RELATIVE HUMIDITY FOR PALOS VERDES AND CATALINA ISLAND... * WINDS...Strong and locally damaging north to northeast winds from late Tuesday afternoon into Wednesday with sustained winds of 25 to 35 mph and damaging wind gusts of 40 to 60 mph likely. * RELATIVE HUMIDITY...Humidities likely falling to between 10 and 20 percent by late Tuesday. There is also a chance of single digit humidities on Wednesday. * IMPACTS...If fire ignition occurs, conditions are favorable for very rapid fire spread and extreme fire behavior, including long range spotting, which would threaten life and property. There will be a high risk for downed trees and powerlines, as well as widespread power outages. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly. Use extreme caution with anything that can spark a wildfire. Residents near wildland interfaces should be prepared to evacuate if a wildfire breaks out. See readyforwildfire.org and wildfirerisk.org for information. && $$