Land Management Forecasts
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
952 FNUS86 KLOX 052239 FWLLOX ECCDA Discussions National Weather Service Los Angeles/Oxnard CA 339 PM PDT Fri Jul 5 2024 ECC029-061645- Los Padres National Forest- Discussion for Vandenberg ECC Dispatch 339 PM PDT Fri Jul 5 2024 ...Discussion from Monterey... ...RED FLAG WARNING NOW IN EFFECT UNTIL 9 PM PDT SATURDAY FOR CRITICALLY DRY FUELS AND LOW HUMIDITY FOR NORTH BAY INTERIOR MOUNTAINS, EAST BAY HILLS, SANTA CRUZ MOUNTAINS, SANTA LUCIA MOUNTAINS, MOUNTAINS OF SAN BENTIO COUNTY AND INTERIOR MONTEREY COUNTY, AND THE SOUTHERN SALINAS VALLEY... Onshore winds are breezy along the coast and lowlands and will offer slight increases in RH over the next few days. However the long period of above average temperatures will continue to dry fire fuels. ERC values are exceeding or approaching the max moving average for a number of regions. Conditions are dangerous, and we urge extreme caution. Note : All winds are 20-foot Winds Unless otherwise specified. Thunderstorms imply strong, gusty and erratic winds. ...Discussion from Los Angeles/Oxnard... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM MONDAY FOR THE INTERSTATE 5 CORRIDOR AND WESTERN ANTELOPE VALLEY FOOTHILLS DUE TO GUSTY NORTHWEST WINDS, HOT TEMPERATURES, AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM SATURDAY FOR THE VENTURA COUNTY MOUNTAINS, SANTA BARBARA COUNTY MOUNTAINS, SOUTHWEST SANTA BARBARA COAST, INTERIOR SAN LUIS OBISPO COUNTY, AND CUYAMA VALLEY... ...WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ELSEWHERE ACROSS VALLEYS MOUNTAINS AND DESERTS THROUGH MUCH OF NEXT WEEK... Long lasting and extremely hot conditions Will continue through much of next week. Today will likely be the hottest across much of the region as the onshore flow weakened and some northerly wind flow has pushed hotter and drier conditions closer to the coast. On Saturday, similar very hot temperatures are expected across the interior, but some increasing onshore flow should bring some cooling to the coast and coastal valleys. A few all time record highs will be threatened today and Saturday. Over the lower mountains, interior valleys, and deserts, high temperatures of 108 to 118 will be common today and Saturday with minimum humidities falling to 5 to 10 percent each day. Over the coastal valleys and foothills, high temperatures will climb to 100 to 110 today with minimum humidities falling to 10 to 20 percent. Sundowner winds will likely expand in coverage across much of the Santa Ynez Range this afternoon through tonight, descending into portions of the foothills including areas near San Marcos Pass, Mission Canyon, and Montecito Hills. Northwest to north wind gusts of 25 to 40 mph will be common in sundowner prone areas as well as the I-5 corridor through tonight, except isolated gusts to around 45 mph near Gaviota/Refugio this evening. Areas exposed to the sundowner winds will likely see temperatures soar to between 90 and 105 degrees through this evening, with minimum humidities falling to 10 to 20 percent...especially in the foothills. Overnight lows between 75 and 90 will be common in the mountains, foothills and deserts with poor humidity recoveries of 15 to 30 percent. Meanwhile, northwest to northeast winds gusting between 15 and 35 mph will be common today over many mountains, interior valleys, and the Antelope Valley. The extreme heat will also generate very deep mixing heights of 10000 to 18000 feet today through the weekend across the interior, increasing the potential for large plume dominated fires, especially in the mountains and foothills. While classic Red Flag Warning threshold durations will likely not be met, considering the extreme nature of this heat event (including the plume dominated fire potential) and the holiday fire ignition sources available, conditions are favorable for rapid fire spread and extreme fire behavior, potentially threatening life and property. Less hot conditions are likely for the coastal and adjacent valley areas by Sunday and Monday, but the extremely hot conditions will change little over the mountains and interior through most if not all of next week. Onshore flow will likely be on the increase Saturday through Monday, which will likely lead to increasing southwest to northwest winds. The interior areas could see widespread wind gusts of 25 to 40 mph Saturday night into Sunday night. The best overlap of gusty northwest winds and low humidities will likely occur in the Interstate 5 corridor and western Antelope Valley foothills, which prompted the extension of the Red Flag Warning for those areas through Sunday night. This is one of the longest and most extreme heat waves on record for interior areas. Elevated fire weather conditions will continue for the foreseeable future, with a higher risk for large fires and plume dominated fires. There is a high risk for heat related illness as well. $$ ECC028-061645- Santa Barbara County excluding Los Padres National Forest- Discussion for Santa Barbara ECC Dispatch 339 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING IN EFFECT UNTIL 6 AM MONDAY FOR THE INTERSTATE 5 CORRIDOR AND WESTERN ANTELOPE VALLEY FOOTHILLS DUE TO GUSTY NORTHWEST WINDS, HOT TEMPERATURES, AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM SATURDAY FOR THE VENTURA COUNTY MOUNTAINS, SANTA BARBARA COUNTY MOUNTAINS, SOUTHWEST SANTA BARBARA COAST, INTERIOR SAN LUIS OBISPO COUNTY, AND CUYAMA VALLEY... ...WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ELSEWHERE ACROSS VALLEYS MOUNTAINS AND DESERTS THROUGH MUCH OF NEXT WEEK... Long lasting and extremely hot conditions Will continue through much of next week. Today will likely be the hottest across much of the region as the onshore flow weakened and some northerly wind flow has pushed hotter and drier conditions closer to the coast. On Saturday, similar very hot temperatures are expected across the interior, but some increasing onshore flow should bring some cooling to the coast and coastal valleys. A few all time record highs will be threatened today and Saturday. Over the lower mountains, interior valleys, and deserts, high temperatures of 108 to 118 will be common today and Saturday with minimum humidities falling to 5 to 10 percent each day. Over the coastal valleys and foothills, high temperatures will climb to 100 to 110 today with minimum humidities falling to 10 to 20 percent. Sundowner winds will likely expand in coverage across much of the Santa Ynez Range this afternoon through tonight, descending into portions of the foothills including areas near San Marcos Pass, Mission Canyon, and Montecito Hills. Northwest to north wind gusts of 25 to 40 mph will be common in sundowner prone areas as well as the I-5 corridor through tonight, except isolated gusts to around 45 mph near Gaviota/Refugio this evening. Areas exposed to the sundowner winds will likely see temperatures soar to between 90 and 105 degrees through this evening, with minimum humidities falling to 10 to 20 percent...especially in the foothills. Overnight lows between 75 and 90 will be common in the mountains, foothills and deserts with poor humidity recoveries of 15 to 30 percent. Meanwhile, northwest to northeast winds gusting between 15 and 35 mph will be common today over many mountains, interior valleys, and the Antelope Valley. The extreme heat will also generate very deep mixing heights of 10000 to 18000 feet today through the weekend across the interior, increasing the potential for large plume dominated fires, especially in the mountains and foothills. While classic Red Flag Warning threshold durations will likely not be met, considering the extreme nature of this heat event (including the plume dominated fire potential) and the holiday fire ignition sources available, conditions are favorable for rapid fire spread and extreme fire behavior, potentially threatening life and property. Less hot conditions are likely for the coastal and adjacent valley areas by Sunday and Monday, but the extremely hot conditions will change little over the mountains and interior through most if not all of next week. Onshore flow will likely be on the increase Saturday through Monday, which will likely lead to increasing southwest to northwest winds. The interior areas could see widespread wind gusts of 25 to 40 mph Saturday night into Sunday night. The best overlap of gusty northwest winds and low humidities will likely occur in the Interstate 5 corridor and western Antelope Valley foothills, which prompted the extension of the Red Flag Warning for those areas through Sunday night. This is one of the longest and most extreme heat waves on record for interior areas. Elevated fire weather conditions will continue for the foreseeable future, with a higher risk for large fires and plume dominated fires. There is a high risk for heat related illness as well. $$ ECC031-061645- Angeles National Forest- Discussion for Lancaster ECC Dispatch 339 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING IN EFFECT UNTIL 6 AM MONDAY FOR THE INTERSTATE 5 CORRIDOR AND WESTERN ANTELOPE VALLEY FOOTHILLS DUE TO GUSTY NORTHWEST WINDS, HOT TEMPERATURES, AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM SATURDAY FOR THE VENTURA COUNTY MOUNTAINS, SANTA BARBARA COUNTY MOUNTAINS, SOUTHWEST SANTA BARBARA COAST, INTERIOR SAN LUIS OBISPO COUNTY, AND CUYAMA VALLEY... ...WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ELSEWHERE ACROSS VALLEYS MOUNTAINS AND DESERTS THROUGH MUCH OF NEXT WEEK... Long lasting and extremely hot conditions Will continue through much of next week. Today will likely be the hottest across much of the region as the onshore flow weakened and some northerly wind flow has pushed hotter and drier conditions closer to the coast. On Saturday, similar very hot temperatures are expected across the interior, but some increasing onshore flow should bring some cooling to the coast and coastal valleys. A few all time record highs will be threatened today and Saturday. Over the lower mountains, interior valleys, and deserts, high temperatures of 108 to 118 will be common today and Saturday with minimum humidities falling to 5 to 10 percent each day. Over the coastal valleys and foothills, high temperatures will climb to 100 to 110 today with minimum humidities falling to 10 to 20 percent. Sundowner winds will likely expand in coverage across much of the Santa Ynez Range this afternoon through tonight, descending into portions of the foothills including areas near San Marcos Pass, Mission Canyon, and Montecito Hills. Northwest to north wind gusts of 25 to 40 mph will be common in sundowner prone areas as well as the I-5 corridor through tonight, except isolated gusts to around 45 mph near Gaviota/Refugio this evening. Areas exposed to the sundowner winds will likely see temperatures soar to between 90 and 105 degrees through this evening, with minimum humidities falling to 10 to 20 percent...especially in the foothills. Overnight lows between 75 and 90 will be common in the mountains, foothills and deserts with poor humidity recoveries of 15 to 30 percent. Meanwhile, northwest to northeast winds gusting between 15 and 35 mph will be common today over many mountains, interior valleys, and the Antelope Valley. The extreme heat will also generate very deep mixing heights of 10000 to 18000 feet today through the weekend across the interior, increasing the potential for large plume dominated fires, especially in the mountains and foothills. While classic Red Flag Warning threshold durations will likely not be met, considering the extreme nature of this heat event (including the plume dominated fire potential) and the holiday fire ignition sources available, conditions are favorable for rapid fire spread and extreme fire behavior, potentially threatening life and property. Less hot conditions are likely for the coastal and adjacent valley areas by Sunday and Monday, but the extremely hot conditions will change little over the mountains and interior through most if not all of next week. Onshore flow will likely be on the increase Saturday through Monday, which will likely lead to increasing southwest to northwest winds. The interior areas could see widespread wind gusts of 25 to 40 mph Saturday night into Sunday night. The best overlap of gusty northwest winds and low humidities will likely occur in the Interstate 5 corridor and western Antelope Valley foothills, which prompted the extension of the Red Flag Warning for those areas through Sunday night. This is one of the longest and most extreme heat waves on record for interior areas. Elevated fire weather conditions will continue for the foreseeable future, with a higher risk for large fires and plume dominated fires. There is a high risk for heat related illness as well. $$ ECC024-061645- San Luis Obispo County- Discussion for San Luis Obispo ECC Dispatch 339 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING IN EFFECT UNTIL 6 AM MONDAY FOR THE INTERSTATE 5 CORRIDOR AND WESTERN ANTELOPE VALLEY FOOTHILLS DUE TO GUSTY NORTHWEST WINDS, HOT TEMPERATURES, AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM SATURDAY FOR THE VENTURA COUNTY MOUNTAINS, SANTA BARBARA COUNTY MOUNTAINS, SOUTHWEST SANTA BARBARA COAST, INTERIOR SAN LUIS OBISPO COUNTY, AND CUYAMA VALLEY... ...WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ELSEWHERE ACROSS VALLEYS MOUNTAINS AND DESERTS THROUGH MUCH OF NEXT WEEK... Long lasting and extremely hot conditions Will continue through much of next week. Today will likely be the hottest across much of the region as the onshore flow weakened and some northerly wind flow has pushed hotter and drier conditions closer to the coast. On Saturday, similar very hot temperatures are expected across the interior, but some increasing onshore flow should bring some cooling to the coast and coastal valleys. A few all time record highs will be threatened today and Saturday. Over the lower mountains, interior valleys, and deserts, high temperatures of 108 to 118 will be common today and Saturday with minimum humidities falling to 5 to 10 percent each day. Over the coastal valleys and foothills, high temperatures will climb to 100 to 110 today with minimum humidities falling to 10 to 20 percent. Sundowner winds will likely expand in coverage across much of the Santa Ynez Range this afternoon through tonight, descending into portions of the foothills including areas near San Marcos Pass, Mission Canyon, and Montecito Hills. Northwest to north wind gusts of 25 to 40 mph will be common in sundowner prone areas as well as the I-5 corridor through tonight, except isolated gusts to around 45 mph near Gaviota/Refugio this evening. Areas exposed to the sundowner winds will likely see temperatures soar to between 90 and 105 degrees through this evening, with minimum humidities falling to 10 to 20 percent...especially in the foothills. Overnight lows between 75 and 90 will be common in the mountains, foothills and deserts with poor humidity recoveries of 15 to 30 percent. Meanwhile, northwest to northeast winds gusting between 15 and 35 mph will be common today over many mountains, interior valleys, and the Antelope Valley. The extreme heat will also generate very deep mixing heights of 10000 to 18000 feet today through the weekend across the interior, increasing the potential for large plume dominated fires, especially in the mountains and foothills. While classic Red Flag Warning threshold durations will likely not be met, considering the extreme nature of this heat event (including the plume dominated fire potential) and the holiday fire ignition sources available, conditions are favorable for rapid fire spread and extreme fire behavior, potentially threatening life and property. Less hot conditions are likely for the coastal and adjacent valley areas by Sunday and Monday, but the extremely hot conditions will change little over the mountains and interior through most if not all of next week. Onshore flow will likely be on the increase Saturday through Monday, which will likely lead to increasing southwest to northwest winds. The interior areas could see widespread wind gusts of 25 to 40 mph Saturday night into Sunday night. The best overlap of gusty northwest winds and low humidities will likely occur in the Interstate 5 corridor and western Antelope Valley foothills, which prompted the extension of the Red Flag Warning for those areas through Sunday night. This is one of the longest and most extreme heat waves on record for interior areas. Elevated fire weather conditions will continue for the foreseeable future, with a higher risk for large fires and plume dominated fires. There is a high risk for heat related illness as well. $$ ECC032-061645- Ventura County excluding Los Padres National Forest- Discussion for Ventura ECC Dispatch 339 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING IN EFFECT UNTIL 6 AM MONDAY FOR THE INTERSTATE 5 CORRIDOR AND WESTERN ANTELOPE VALLEY FOOTHILLS DUE TO GUSTY NORTHWEST WINDS, HOT TEMPERATURES, AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM SATURDAY FOR THE VENTURA COUNTY MOUNTAINS, SANTA BARBARA COUNTY MOUNTAINS, SOUTHWEST SANTA BARBARA COAST, INTERIOR SAN LUIS OBISPO COUNTY, AND CUYAMA VALLEY... ...WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ELSEWHERE ACROSS VALLEYS MOUNTAINS AND DESERTS THROUGH MUCH OF NEXT WEEK... Long lasting and extremely hot conditions Will continue through much of next week. Today will likely be the hottest across much of the region as the onshore flow weakened and some northerly wind flow has pushed hotter and drier conditions closer to the coast. On Saturday, similar very hot temperatures are expected across the interior, but some increasing onshore flow should bring some cooling to the coast and coastal valleys. A few all time record highs will be threatened today and Saturday. Over the lower mountains, interior valleys, and deserts, high temperatures of 108 to 118 will be common today and Saturday with minimum humidities falling to 5 to 10 percent each day. Over the coastal valleys and foothills, high temperatures will climb to 100 to 110 today with minimum humidities falling to 10 to 20 percent. Sundowner winds will likely expand in coverage across much of the Santa Ynez Range this afternoon through tonight, descending into portions of the foothills including areas near San Marcos Pass, Mission Canyon, and Montecito Hills. Northwest to north wind gusts of 25 to 40 mph will be common in sundowner prone areas as well as the I-5 corridor through tonight, except isolated gusts to around 45 mph near Gaviota/Refugio this evening. Areas exposed to the sundowner winds will likely see temperatures soar to between 90 and 105 degrees through this evening, with minimum humidities falling to 10 to 20 percent...especially in the foothills. Overnight lows between 75 and 90 will be common in the mountains, foothills and deserts with poor humidity recoveries of 15 to 30 percent. Meanwhile, northwest to northeast winds gusting between 15 and 35 mph will be common today over many mountains, interior valleys, and the Antelope Valley. The extreme heat will also generate very deep mixing heights of 10000 to 18000 feet today through the weekend across the interior, increasing the potential for large plume dominated fires, especially in the mountains and foothills. While classic Red Flag Warning threshold durations will likely not be met, considering the extreme nature of this heat event (including the plume dominated fire potential) and the holiday fire ignition sources available, conditions are favorable for rapid fire spread and extreme fire behavior, potentially threatening life and property. Less hot conditions are likely for the coastal and adjacent valley areas by Sunday and Monday, but the extremely hot conditions will change little over the mountains and interior through most if not all of next week. Onshore flow will likely be on the increase Saturday through Monday, which will likely lead to increasing southwest to northwest winds. The interior areas could see widespread wind gusts of 25 to 40 mph Saturday night into Sunday night. The best overlap of gusty northwest winds and low humidities will likely occur in the Interstate 5 corridor and western Antelope Valley foothills, which prompted the extension of the Red Flag Warning for those areas through Sunday night. This is one of the longest and most extreme heat waves on record for interior areas. Elevated fire weather conditions will continue for the foreseeable future, with a higher risk for large fires and plume dominated fires. There is a high risk for heat related illness as well. $$ ECC030-061645- Los Angeles County excluding Angeles National Forest- Discussion for Los Angeles ECC Dispatch 339 PM PDT Fri Jul 5 2024 ...RED FLAG WARNING IN EFFECT UNTIL 6 AM MONDAY FOR THE INTERSTATE 5 CORRIDOR AND WESTERN ANTELOPE VALLEY FOOTHILLS DUE TO GUSTY NORTHWEST WINDS, HOT TEMPERATURES, AND LOW HUMIDITIES... ...RED FLAG WARNING IN EFFECT UNTIL 6 AM SATURDAY FOR THE VENTURA COUNTY MOUNTAINS, SANTA BARBARA COUNTY MOUNTAINS, SOUTHWEST SANTA BARBARA COAST, INTERIOR SAN LUIS OBISPO COUNTY, AND CUYAMA VALLEY... ...WIDESPREAD ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ELSEWHERE ACROSS VALLEYS MOUNTAINS AND DESERTS THROUGH MUCH OF NEXT WEEK... Long lasting and extremely hot conditions Will continue through much of next week. Today will likely be the hottest across much of the region as the onshore flow weakened and some northerly wind flow has pushed hotter and drier conditions closer to the coast. On Saturday, similar very hot temperatures are expected across the interior, but some increasing onshore flow should bring some cooling to the coast and coastal valleys. A few all time record highs will be threatened today and Saturday. Over the lower mountains, interior valleys, and deserts, high temperatures of 108 to 118 will be common today and Saturday with minimum humidities falling to 5 to 10 percent each day. Over the coastal valleys and foothills, high temperatures will climb to 100 to 110 today with minimum humidities falling to 10 to 20 percent. Sundowner winds will likely expand in coverage across much of the Santa Ynez Range this afternoon through tonight, descending into portions of the foothills including areas near San Marcos Pass, Mission Canyon, and Montecito Hills. Northwest to north wind gusts of 25 to 40 mph will be common in sundowner prone areas as well as the I-5 corridor through tonight, except isolated gusts to around 45 mph near Gaviota/Refugio this evening. Areas exposed to the sundowner winds will likely see temperatures soar to between 90 and 105 degrees through this evening, with minimum humidities falling to 10 to 20 percent...especially in the foothills. Overnight lows between 75 and 90 will be common in the mountains, foothills and deserts with poor humidity recoveries of 15 to 30 percent. Meanwhile, northwest to northeast winds gusting between 15 and 35 mph will be common today over many mountains, interior valleys, and the Antelope Valley. The extreme heat will also generate very deep mixing heights of 10000 to 18000 feet today through the weekend across the interior, increasing the potential for large plume dominated fires, especially in the mountains and foothills. While classic Red Flag Warning threshold durations will likely not be met, considering the extreme nature of this heat event (including the plume dominated fire potential) and the holiday fire ignition sources available, conditions are favorable for rapid fire spread and extreme fire behavior, potentially threatening life and property. Less hot conditions are likely for the coastal and adjacent valley areas by Sunday and Monday, but the extremely hot conditions will change little over the mountains and interior through most if not all of next week. Onshore flow will likely be on the increase Saturday through Monday, which will likely lead to increasing southwest to northwest winds. The interior areas could see widespread wind gusts of 25 to 40 mph Saturday night into Sunday night. The best overlap of gusty northwest winds and low humidities will likely occur in the Interstate 5 corridor and western Antelope Valley foothills, which prompted the extension of the Red Flag Warning for those areas through Sunday night. This is one of the longest and most extreme heat waves on record for interior areas. Elevated fire weather conditions will continue for the foreseeable future, with a higher risk for large fires and plume dominated fires. There is a high risk for heat related illness as well. $$