579 FNUS86 KLOX 051552 FWLLOX ECCDA Discussions National Weather Service Los Angeles/Oxnard CA 852 AM PDT Mon Aug 5 2019 ECC029-061000- Los Padres National Forest- Discussion for Vandenberg ECC Dispatch 852 AM PDT Mon Aug 5 2019 ...Discussion from Los Angeles/Oxnard... ...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH AT LEAST TUESDAY OVER INTERIOR MOUNTAINS, DESERTS, AND VALLEYS DUE TO HOT AND VERY DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS AND POTENTIAL VERTICAL PLUME GROWTH.... A strong upper level high pressure system centered over the four corners area will continue to bring hot and very dry conditions to interior sections of Southwest California through Tuesday. High temperatures are expected to generally range between 95 and 105 degrees across the deserts, as well as warmer mountain and interior valley locations. Minimum humidities will generally range between 5 and 20 percent through Tuesday across interior valleys, mountains, and deserts, with the driest air focused across the Los Angeles county mountains and Antelope Valley. Some interior mountain areas will also continue to experience very poor overnight humidity recoveries remaining below 20 percent. Onshore winds gusting between 20 and 30 mph are expected across interior areas each afternoon and evening, with local gusts up to 40 mph in the foothills of the Antelope Valley. The combination of hot and very dry conditions with moderate onshore winds will bring elevated to brief critical fire weather conditions across all interior areas through Tuesday, especially the Highway 14 corridor from Santa Clarita Valley to Antelope Valley, and the Los Angeles county mountains. Any fire ignitions during the afternoon hours across interior wind sheltered areas will also have the potential for significant vertical plume growth, with peak mixing heights ranging between 10,000 and 15,000 feet through Tuesday. There will also be weak and localized sundowner winds with warm and dry conditions each evening through Wednesday across the western canyons of the Santa Ynez mountains and Santa Barbara south coast, with gusts generally in the 25 to 35 mph range (strongest near Gaviota). There is expected to be a gradual cooling trend Wednesday through Friday, followed by another potential warm-up over the weekend. ...Discussion from Monterey... A gradual inland cooling trend is forecast through much of the week ahead. Overnight humidity recoveries will increase in the hills by midweek as the marine layer deepens. Winds will remain light for the most part, except for locally moderate and gusty onshore breezes during the afternoon and evening hours. High clouds streaming in from the south will continue to move across the district through Tuesday, and possibly into Wednesday. High-based showers are thunderstorms are not currently expected to develop from this elevated moisture. Note : All winds are 20-foot Winds Unless otherwise specified. Thunderstorms imply strong, gusty and erratic winds. $$ ECC028-061000- Santa Barbara County excluding Los Padres National Forest- Discussion for Santa Barbara ECC Dispatch 852 AM PDT Mon Aug 5 2019 ...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH AT LEAST TUESDAY OVER INTERIOR MOUNTAINS, DESERTS, AND VALLEYS DUE TO HOT AND VERY DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS AND POTENTIAL VERTICAL PLUME GROWTH.... A strong upper level high pressure system centered over the four corners area will continue to bring hot and very dry conditions to interior sections of Southwest California through Tuesday. High temperatures are expected to generally range between 95 and 105 degrees across the deserts, as well as warmer mountain and interior valley locations. Minimum humidities will generally range between 5 and 20 percent through Tuesday across interior valleys, mountains, and deserts, with the driest air focused across the Los Angeles county mountains and Antelope Valley. Some interior mountain areas will also continue to experience very poor overnight humidity recoveries remaining below 20 percent. Onshore winds gusting between 20 and 30 mph are expected across interior areas each afternoon and evening, with local gusts up to 40 mph in the foothills of the Antelope Valley. The combination of hot and very dry conditions with moderate onshore winds will bring elevated to brief critical fire weather conditions across all interior areas through Tuesday, especially the Highway 14 corridor from Santa Clarita Valley to Antelope Valley, and the Los Angeles county mountains. Any fire ignitions during the afternoon hours across interior wind sheltered areas will also have the potential for significant vertical plume growth, with peak mixing heights ranging between 10,000 and 15,000 feet through Tuesday. There will also be weak and localized sundowner winds with warm and dry conditions each evening through Wednesday across the western canyons of the Santa Ynez mountains and Santa Barbara south coast, with gusts generally in the 25 to 35 mph range (strongest near Gaviota). There is expected to be a gradual cooling trend Wednesday through Friday, followed by another potential warm-up over the weekend. $$ ECC031-061000- Angeles National Forest- Discussion for Lancaster ECC Dispatch 852 AM PDT Mon Aug 5 2019 ...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH AT LEAST TUESDAY OVER INTERIOR MOUNTAINS, DESERTS, AND VALLEYS DUE TO HOT AND VERY DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS AND POTENTIAL VERTICAL PLUME GROWTH.... A strong upper level high pressure system centered over the four corners area will continue to bring hot and very dry conditions to interior sections of Southwest California through Tuesday. High temperatures are expected to generally range between 95 and 105 degrees across the deserts, as well as warmer mountain and interior valley locations. Minimum humidities will generally range between 5 and 20 percent through Tuesday across interior valleys, mountains, and deserts, with the driest air focused across the Los Angeles county mountains and Antelope Valley. Some interior mountain areas will also continue to experience very poor overnight humidity recoveries remaining below 20 percent. Onshore winds gusting between 20 and 30 mph are expected across interior areas each afternoon and evening, with local gusts up to 40 mph in the foothills of the Antelope Valley. The combination of hot and very dry conditions with moderate onshore winds will bring elevated to brief critical fire weather conditions across all interior areas through Tuesday, especially the Highway 14 corridor from Santa Clarita Valley to Antelope Valley, and the Los Angeles county mountains. Any fire ignitions during the afternoon hours across interior wind sheltered areas will also have the potential for significant vertical plume growth, with peak mixing heights ranging between 10,000 and 15,000 feet through Tuesday. There will also be weak and localized sundowner winds with warm and dry conditions each evening through Wednesday across the western canyons of the Santa Ynez mountains and Santa Barbara south coast, with gusts generally in the 25 to 35 mph range (strongest near Gaviota). There is expected to be a gradual cooling trend Wednesday through Friday, followed by another potential warm-up over the weekend. $$ ECC024-061000- San Luis Obispo County- Discussion for San Luis Obispo ECC Dispatch 852 AM PDT Mon Aug 5 2019 ...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH AT LEAST TUESDAY OVER INTERIOR MOUNTAINS, DESERTS, AND VALLEYS DUE TO HOT AND VERY DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS AND POTENTIAL VERTICAL PLUME GROWTH.... A strong upper level high pressure system centered over the four corners area will continue to bring hot and very dry conditions to interior sections of Southwest California through Tuesday. High temperatures are expected to generally range between 95 and 105 degrees across the deserts, as well as warmer mountain and interior valley locations. Minimum humidities will generally range between 5 and 20 percent through Tuesday across interior valleys, mountains, and deserts, with the driest air focused across the Los Angeles county mountains and Antelope Valley. Some interior mountain areas will also continue to experience very poor overnight humidity recoveries remaining below 20 percent. Onshore winds gusting between 20 and 30 mph are expected across interior areas each afternoon and evening, with local gusts up to 40 mph in the foothills of the Antelope Valley. The combination of hot and very dry conditions with moderate onshore winds will bring elevated to brief critical fire weather conditions across all interior areas through Tuesday, especially the Highway 14 corridor from Santa Clarita Valley to Antelope Valley, and the Los Angeles county mountains. Any fire ignitions during the afternoon hours across interior wind sheltered areas will also have the potential for significant vertical plume growth, with peak mixing heights ranging between 10,000 and 15,000 feet through Tuesday. There will also be weak and localized sundowner winds with warm and dry conditions each evening through Wednesday across the western canyons of the Santa Ynez mountains and Santa Barbara south coast, with gusts generally in the 25 to 35 mph range (strongest near Gaviota). There is expected to be a gradual cooling trend Wednesday through Friday, followed by another potential warm-up over the weekend. $$ ECC032-061000- Ventura County excluding Los Padres National Forest- Discussion for Ventura ECC Dispatch 852 AM PDT Mon Aug 5 2019 ...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH AT LEAST TUESDAY OVER INTERIOR MOUNTAINS, DESERTS, AND VALLEYS DUE TO HOT AND VERY DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS AND POTENTIAL VERTICAL PLUME GROWTH.... A strong upper level high pressure system centered over the four corners area will continue to bring hot and very dry conditions to interior sections of Southwest California through Tuesday. High temperatures are expected to generally range between 95 and 105 degrees across the deserts, as well as warmer mountain and interior valley locations. Minimum humidities will generally range between 5 and 20 percent through Tuesday across interior valleys, mountains, and deserts, with the driest air focused across the Los Angeles county mountains and Antelope Valley. Some interior mountain areas will also continue to experience very poor overnight humidity recoveries remaining below 20 percent. Onshore winds gusting between 20 and 30 mph are expected across interior areas each afternoon and evening, with local gusts up to 40 mph in the foothills of the Antelope Valley. The combination of hot and very dry conditions with moderate onshore winds will bring elevated to brief critical fire weather conditions across all interior areas through Tuesday, especially the Highway 14 corridor from Santa Clarita Valley to Antelope Valley, and the Los Angeles county mountains. Any fire ignitions during the afternoon hours across interior wind sheltered areas will also have the potential for significant vertical plume growth, with peak mixing heights ranging between 10,000 and 15,000 feet through Tuesday. There will also be weak and localized sundowner winds with warm and dry conditions each evening through Wednesday across the western canyons of the Santa Ynez mountains and Santa Barbara south coast, with gusts generally in the 25 to 35 mph range (strongest near Gaviota). There is expected to be a gradual cooling trend Wednesday through Friday, followed by another potential warm-up over the weekend. $$ ECC030-061000- Los Angeles County excluding Angeles National Forest- Discussion for Los Angeles ECC Dispatch 852 AM PDT Mon Aug 5 2019 ...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS THROUGH AT LEAST TUESDAY OVER INTERIOR MOUNTAINS, DESERTS, AND VALLEYS DUE TO HOT AND VERY DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS AND POTENTIAL VERTICAL PLUME GROWTH.... A strong upper level high pressure system centered over the four corners area will continue to bring hot and very dry conditions to interior sections of Southwest California through Tuesday. High temperatures are expected to generally range between 95 and 105 degrees across the deserts, as well as warmer mountain and interior valley locations. Minimum humidities will generally range between 5 and 20 percent through Tuesday across interior valleys, mountains, and deserts, with the driest air focused across the Los Angeles county mountains and Antelope Valley. Some interior mountain areas will also continue to experience very poor overnight humidity recoveries remaining below 20 percent. Onshore winds gusting between 20 and 30 mph are expected across interior areas each afternoon and evening, with local gusts up to 40 mph in the foothills of the Antelope Valley. The combination of hot and very dry conditions with moderate onshore winds will bring elevated to brief critical fire weather conditions across all interior areas through Tuesday, especially the Highway 14 corridor from Santa Clarita Valley to Antelope Valley, and the Los Angeles county mountains. Any fire ignitions during the afternoon hours across interior wind sheltered areas will also have the potential for significant vertical plume growth, with peak mixing heights ranging between 10,000 and 15,000 feet through Tuesday. There will also be weak and localized sundowner winds with warm and dry conditions each evening through Wednesday across the western canyons of the Santa Ynez mountains and Santa Barbara south coast, with gusts generally in the 25 to 35 mph range (strongest near Gaviota). There is expected to be a gradual cooling trend Wednesday through Friday, followed by another potential warm-up over the weekend. $$