(1 of 19) ...A PARTICULARLY DANGEROUS SITUATION IS EXPECTED FOR INLAND ORANGE COUNTY, THE SANTA ANA MOUNTAINS, INLAND EMPIRE, AND SAN BERNARDINO MOUNTAIN FOOTHILLS FROM 7 AM TO 1 PM TODAY. A PERIOD OF WIDESPREAD, STRONG WINDS ACCOMPANIED BY VERY DRY AIR AND CRITICALLY DRY FUELS WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. ANY NEW FIRE IGNITION IN THESE AREAS WILL LIKELY HAVE VERY DANGEROUS WILDFIRE SPREAD AND BEHAVIOR WITH GREAT DIFFICULTY IN CONTAINMENT THAT COULD IMPACT LIFE AND PROPERTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO COUNTY MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH TODAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR COASTAL ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR SAN DIEGO AND RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO VALLEYS, AND THE SAN GORGONIO PASS... * WINDS...Northeast 25 to 35 mph with gusts to 60 mph. * RELATIVE HUMIDITY...As low as 15 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Winds could damage outdoor property and will make for difficult driving conditions. * LOCATION...Orange County Coastal Areas. (2 of 19) ...A PARTICULARLY DANGEROUS SITUATION IS EXPECTED FOR INLAND ORANGE COUNTY, THE SANTA ANA MOUNTAINS, INLAND EMPIRE, AND SAN BERNARDINO MOUNTAIN FOOTHILLS FROM 7 AM TO 1 PM TODAY. A PERIOD OF WIDESPREAD, STRONG WINDS ACCOMPANIED BY VERY DRY AIR AND CRITICALLY DRY FUELS WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. ANY NEW FIRE IGNITION IN THESE AREAS WILL LIKELY HAVE VERY DANGEROUS WILDFIRE SPREAD AND BEHAVIOR WITH GREAT DIFFICULTY IN CONTAINMENT THAT COULD IMPACT LIFE AND PROPERTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO COUNTY MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH TODAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR COASTAL ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR SAN DIEGO AND RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO VALLEYS, AND THE SAN GORGONIO PASS... * WINDS...Northeast 30 to 40 mph with gusts to 75 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Winds could damage outdoor property and will make for difficult driving conditions. * LOCATION...San Bernardino and Riverside County Valleys -The Inland Empire and San Bernardino County Mountains-Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest. (3 of 19) ...A PARTICULARLY DANGEROUS SITUATION IS EXPECTED FOR INLAND ORANGE COUNTY, THE SANTA ANA MOUNTAINS, INLAND EMPIRE, AND SAN BERNARDINO MOUNTAIN FOOTHILLS FROM 7 AM TO 1 PM TODAY. A PERIOD OF WIDESPREAD, STRONG WINDS ACCOMPANIED BY VERY DRY AIR AND CRITICALLY DRY FUELS WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. ANY NEW FIRE IGNITION IN THESE AREAS WILL LIKELY HAVE VERY DANGEROUS WILDFIRE SPREAD AND BEHAVIOR WITH GREAT DIFFICULTY IN CONTAINMENT THAT COULD IMPACT LIFE AND PROPERTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO COUNTY MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH TODAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR COASTAL ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR SAN DIEGO AND RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO VALLEYS, AND THE SAN GORGONIO PASS... * WINDS...Northeast 30 to 40 mph with gusts to 65 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Winds could damage outdoor property and will make for difficult driving conditions. * LOCATION...San Gorgonio Pass Near Banning. (4 of 19) ...A PARTICULARLY DANGEROUS SITUATION IS EXPECTED FOR INLAND ORANGE COUNTY, THE SANTA ANA MOUNTAINS, INLAND EMPIRE, AND SAN BERNARDINO MOUNTAIN FOOTHILLS FROM 7 AM TO 1 PM TODAY. A PERIOD OF WIDESPREAD, STRONG WINDS ACCOMPANIED BY VERY DRY AIR AND CRITICALLY DRY FUELS WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. ANY NEW FIRE IGNITION IN THESE AREAS WILL LIKELY HAVE VERY DANGEROUS WILDFIRE SPREAD AND BEHAVIOR WITH GREAT DIFFICULTY IN CONTAINMENT THAT COULD IMPACT LIFE AND PROPERTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO COUNTY MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH TODAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR COASTAL ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR SAN DIEGO AND RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO VALLEYS, AND THE SAN GORGONIO PASS... * WINDS...Northeast 35 to 45 mph with gusts to 75 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Winds could damage outdoor property and will make for difficult driving conditions. * LOCATION...Santa Ana Mountains-Including The Trabuco Ranger District of the Cleveland National Forest and Orange County Inland Areas. (5 of 19) ...A PARTICULARLY DANGEROUS SITUATION IS EXPECTED FOR INLAND ORANGE COUNTY, THE SANTA ANA MOUNTAINS, INLAND EMPIRE, AND SAN BERNARDINO MOUNTAIN FOOTHILLS FROM 7 AM TO 1 PM TODAY. A PERIOD OF WIDESPREAD, STRONG WINDS ACCOMPANIED BY VERY DRY AIR AND CRITICALLY DRY FUELS WILL RESULT IN DANGEROUS FIRE WEATHER CONDITIONS. ANY NEW FIRE IGNITION IN THESE AREAS WILL LIKELY HAVE VERY DANGEROUS WILDFIRE SPREAD AND BEHAVIOR WITH GREAT DIFFICULTY IN CONTAINMENT THAT COULD IMPACT LIFE AND PROPERTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE SAN BERNARDINO COUNTY MOUNTAINS, THE INLAND EMPIRE, SANTA ANA MOUNTAINS, AND INLAND ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH TODAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR COASTAL ORANGE COUNTY... ...A RED FLAG WARNING IS IN EFFECT THROUGH THURSDAY DUE TO STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR SAN DIEGO AND RIVERSIDE COUNTY MOUNTAINS, SAN DIEGO VALLEYS, AND THE SAN GORGONIO PASS... * WINDS...Northeast 30 to 40 mph with gusts to 70 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS...Any fires that develop will likely spread rapidly. Outdoor burning is not recommended. Winds could damage outdoor property and will make for difficult driving conditions. * LOCATION...San Diego County Inland Valleys, Riverside County Mountains-Including The San Jacinto Ranger District Of The San Bernardino National Forest and San Diego County Mountains- Including The Palomar And Descanso Ranger Districts of the Cleveland National Forest. (6 of 19) * WHAT...North to northeast winds 25 to 40 mph with gusts between 60 and 80 mph. * WHERE...Malibu Coast. * WHEN...Until 6 PM PST this evening. * IMPACTS...Damaging winds could blow down many trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. (7 of 19) * WHAT...North to northeast winds 25 to 40 mph with gusts up to 65 mph expected. * WHERE...Central Ventura County Valleys, Northern Ventura County Mountains, and Southern Ventura County Mountains. * WHEN...Until 6 PM PST this evening. * IMPACTS...Damaging winds could blow down many trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. (8 of 19) * WHAT...North winds 30 to 40 mph with gusts up to 60 mph. * WHERE...Catalina and Santa Barbara Islands, Los Angeles County Beaches, Los Angeles County Inland Coast including Downtown Los Angeles, and Palos Verdes Hills. * WHEN...Until 6 PM PST this evening. * IMPACTS...Damaging winds could blow down trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The highest chances of strong and damaging winds are the Palos Verdes area, the Hollywood Hills, Beverly Hills and areas adjacent to the Sepulveda Pass. (9 of 19) * WHAT...North to northeast winds 35 to 55 mph with widespread gusts between 60 and 80 mph expected, isolated gusts between 80 and 100 mph possible. * WHERE...Eastern San Gabriel Mountains, Santa Susana Mountains, and Western San Gabriel Mountains and Highway 14 Corridor. * WHEN...Until 6 PM PST this evening. * IMPACTS...Damaging winds could blow down many trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. (10 of 19) * WHAT...North to northeast winds 30 to 45 mph with gusts between 60 and 80 mph expected. * WHERE...Calabasas and Agoura Hills, Southeastern Ventura County Valleys, and Western Santa Monica Mountains Recreational Area. * WHEN...Until 6 PM PST this evening. * IMPACTS...Damaging winds could blow down many trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. (11 of 19) * WHAT...North to northeast winds 30 to 50 mph with widespread gusts between 60 and 80 mph expected, isolated gusts between 80 and 100 mph possible. * WHERE...Eastern San Fernando Valley, Eastern Santa Monica Mountains Recreational Area, Interstate 5 Corridor, Los Angeles County San Gabriel Valley, Santa Clarita Valley, and Western San Fernando Valley. * WHEN...Until 6 PM PST this evening. * IMPACTS...Damaging winds could blow down many trees and power lines. Widespread power outages are possible. Travel will be difficult, especially for high profile vehicles. * ADDITIONAL DETAILS...The strongest winds are expected across the San Fernando Valley, San Gabriel Valley and Santa Monica Mountains. (12 of 19) ...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. * 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. (13 of 19) ...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. * 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. (14 of 19) ...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. * 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. (15 of 19) ...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. * 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. (16 of 19) ...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. * 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. (17 of 19) ...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. * 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. (18 of 19) ...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. * 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. (19 of 19) ...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. * 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.
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