Land Management Forecasts
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
646 FNUS86 KLOX 301631 FWLLOX ECCDA Discussions National Weather Service Los Angeles/Oxnard CA 931 AM PDT Sun Jun 30 2024 ECC029-011045- Los Padres National Forest- Discussion for Vandenberg ECC Dispatch 931 AM PDT Sun Jun 30 2024 ...Discussion from Monterey... ...Critically low relative humidity expected across the interior and in higher terrain this upcoming week, especially Tuesday and Wednesday... Fire weather concerns will elevate this upcoming week. A Heat Advisory and Excessive Heat Warning remains in effect for most of our area away from the coastline for Tuesday through Friday. ERCs are quickly shifting into the 70ish percentiles and higher in areas prone to grass fires. The high heat and subsequent low RH values, poor overnight RH recovery and the associated risks of fireworks with the Fourth of July - all makes for a combustible situation, please plan accordingly. Note : All winds are 20-foot Winds Unless otherwise specified. Thunderstorms imply strong, gusty and erratic winds. ...Discussion from Los Angeles/Oxnard... ...ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR VALLEYS, MOUNTAINS, AND DESERTS TODAY THROUGH MONDAY DUE TO HOT AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS... ...SIGNIFICANT INTERIOR HEAT WAVE AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS LIKELY TUESDAY THROUGH SUNDAY WILL LIKELY BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ACROSS VALLEYS, FOOTHILLS, MOUNTAINS, AND DESERTS WITH INCREASING VERTICAL PLUME GROWTH POTENTIAL... A broad upper level trough over the West Coast will gradually weaken through Monday. This will bring a gradual warming and drying trend to all areas through Monday with the best warming away from the coast. The marine inversion will remain quite shallow with night and morning low clouds and fog confined to the coastal plain. For the interior valleys, mountains, and deserts, humidity values are expected to lower to between 8 and 20 percent today and Monday. The hotter temperatures, low humidities, and locally gusty onshore winds will bring elevated fire weather conditions across the interior valleys, mountains, and deserts today through Monday. Beginning on Tuesday, and continuing into next weekend, high pressure will build into the region from the Eastern Pacific. This will likely bring a significant and long duration heat wave away from the coast from Tuesday through next weekend. High temperatures between 100 and 110 degrees will be common across the interior during this period, with temperatures potentially rising to between 110 and 115 degrees across the Antelope Valley and San Luis Obispo County interior valleys during the peak of the heat Thursday through Saturday. Overnight lows will also remain quite warm, adding to the potential for dangerous heat mid to late week. Widespread humidity values between 7 and 15 percent will likely occur across the interior during this period, along with poor humidity recoveries, especially in the mountains and foothills. Typical diurnal winds are still anticipated with gusty southwesterly winds across interior sections in the afternoon and evening. Given the very hot temperatures, low relative humidity, and locally gusty diurnal onshore winds, an extended period of elevated to brief critical fire weather conditions are likely from Tuesday through Sunday for valley, foothill, mountain, and desert locations. The hot and unstable conditions will also increase threat threat of large vertical plume growth for any fires that develop across the interior. The very hot and dry conditions will also cause a significant drop in both live and dead fuel moisture levels this week. These drying fuels combined with the expected fire weather conditions and increased outdoor activities will cause the large fire threat to become high for areas away from the coast Tuesday through next weekend. $$ ECC028-011045- Santa Barbara County excluding Los Padres National Forest- Discussion for Santa Barbara ECC Dispatch 931 AM PDT Sun Jun 30 2024 ...ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR VALLEYS, MOUNTAINS, AND DESERTS TODAY THROUGH MONDAY DUE TO HOT AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS... ...SIGNIFICANT INTERIOR HEAT WAVE AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS LIKELY TUESDAY THROUGH SUNDAY WILL LIKELY BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ACROSS VALLEYS, FOOTHILLS, MOUNTAINS, AND DESERTS WITH INCREASING VERTICAL PLUME GROWTH POTENTIAL... A broad upper level trough over the West Coast will gradually weaken through Monday. This will bring a gradual warming and drying trend to all areas through Monday with the best warming away from the coast. The marine inversion will remain quite shallow with night and morning low clouds and fog confined to the coastal plain. For the interior valleys, mountains, and deserts, humidity values are expected to lower to between 8 and 20 percent today and Monday. The hotter temperatures, low humidities, and locally gusty onshore winds will bring elevated fire weather conditions across the interior valleys, mountains, and deserts today through Monday. Beginning on Tuesday, and continuing into next weekend, high pressure will build into the region from the Eastern Pacific. This will likely bring a significant and long duration heat wave away from the coast from Tuesday through next weekend. High temperatures between 100 and 110 degrees will be common across the interior during this period, with temperatures potentially rising to between 110 and 115 degrees across the Antelope Valley and San Luis Obispo County interior valleys during the peak of the heat Thursday through Saturday. Overnight lows will also remain quite warm, adding to the potential for dangerous heat mid to late week. Widespread humidity values between 7 and 15 percent will likely occur across the interior during this period, along with poor humidity recoveries, especially in the mountains and foothills. Typical diurnal winds are still anticipated with gusty southwesterly winds across interior sections in the afternoon and evening. Given the very hot temperatures, low relative humidity, and locally gusty diurnal onshore winds, an extended period of elevated to brief critical fire weather conditions are likely from Tuesday through Sunday for valley, foothill, mountain, and desert locations. The hot and unstable conditions will also increase threat threat of large vertical plume growth for any fires that develop across the interior. The very hot and dry conditions will also cause a significant drop in both live and dead fuel moisture levels this week. These drying fuels combined with the expected fire weather conditions and increased outdoor activities will cause the large fire threat to become high for areas away from the coast Tuesday through next weekend. $$ ECC031-011045- Angeles National Forest- Discussion for Lancaster ECC Dispatch 931 AM PDT Sun Jun 30 2024 ...ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR VALLEYS, MOUNTAINS, AND DESERTS TODAY THROUGH MONDAY DUE TO HOT AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS... ...SIGNIFICANT INTERIOR HEAT WAVE AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS LIKELY TUESDAY THROUGH SUNDAY WILL LIKELY BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ACROSS VALLEYS, FOOTHILLS, MOUNTAINS, AND DESERTS WITH INCREASING VERTICAL PLUME GROWTH POTENTIAL... A broad upper level trough over the West Coast will gradually weaken through Monday. This will bring a gradual warming and drying trend to all areas through Monday with the best warming away from the coast. The marine inversion will remain quite shallow with night and morning low clouds and fog confined to the coastal plain. For the interior valleys, mountains, and deserts, humidity values are expected to lower to between 8 and 20 percent today and Monday. The hotter temperatures, low humidities, and locally gusty onshore winds will bring elevated fire weather conditions across the interior valleys, mountains, and deserts today through Monday. Beginning on Tuesday, and continuing into next weekend, high pressure will build into the region from the Eastern Pacific. This will likely bring a significant and long duration heat wave away from the coast from Tuesday through next weekend. High temperatures between 100 and 110 degrees will be common across the interior during this period, with temperatures potentially rising to between 110 and 115 degrees across the Antelope Valley and San Luis Obispo County interior valleys during the peak of the heat Thursday through Saturday. Overnight lows will also remain quite warm, adding to the potential for dangerous heat mid to late week. Widespread humidity values between 7 and 15 percent will likely occur across the interior during this period, along with poor humidity recoveries, especially in the mountains and foothills. Typical diurnal winds are still anticipated with gusty southwesterly winds across interior sections in the afternoon and evening. Given the very hot temperatures, low relative humidity, and locally gusty diurnal onshore winds, an extended period of elevated to brief critical fire weather conditions are likely from Tuesday through Sunday for valley, foothill, mountain, and desert locations. The hot and unstable conditions will also increase threat threat of large vertical plume growth for any fires that develop across the interior. The very hot and dry conditions will also cause a significant drop in both live and dead fuel moisture levels this week. These drying fuels combined with the expected fire weather conditions and increased outdoor activities will cause the large fire threat to become high for areas away from the coast Tuesday through next weekend. $$ ECC024-011045- San Luis Obispo County- Discussion for San Luis Obispo ECC Dispatch 931 AM PDT Sun Jun 30 2024 ...ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR VALLEYS, MOUNTAINS, AND DESERTS TODAY THROUGH MONDAY DUE TO HOT AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS... ...SIGNIFICANT INTERIOR HEAT WAVE AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS LIKELY TUESDAY THROUGH SUNDAY WILL LIKELY BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ACROSS VALLEYS, FOOTHILLS, MOUNTAINS, AND DESERTS WITH INCREASING VERTICAL PLUME GROWTH POTENTIAL... A broad upper level trough over the West Coast will gradually weaken through Monday. This will bring a gradual warming and drying trend to all areas through Monday with the best warming away from the coast. The marine inversion will remain quite shallow with night and morning low clouds and fog confined to the coastal plain. For the interior valleys, mountains, and deserts, humidity values are expected to lower to between 8 and 20 percent today and Monday. The hotter temperatures, low humidities, and locally gusty onshore winds will bring elevated fire weather conditions across the interior valleys, mountains, and deserts today through Monday. Beginning on Tuesday, and continuing into next weekend, high pressure will build into the region from the Eastern Pacific. This will likely bring a significant and long duration heat wave away from the coast from Tuesday through next weekend. High temperatures between 100 and 110 degrees will be common across the interior during this period, with temperatures potentially rising to between 110 and 115 degrees across the Antelope Valley and San Luis Obispo County interior valleys during the peak of the heat Thursday through Saturday. Overnight lows will also remain quite warm, adding to the potential for dangerous heat mid to late week. Widespread humidity values between 7 and 15 percent will likely occur across the interior during this period, along with poor humidity recoveries, especially in the mountains and foothills. Typical diurnal winds are still anticipated with gusty southwesterly winds across interior sections in the afternoon and evening. Given the very hot temperatures, low relative humidity, and locally gusty diurnal onshore winds, an extended period of elevated to brief critical fire weather conditions are likely from Tuesday through Sunday for valley, foothill, mountain, and desert locations. The hot and unstable conditions will also increase threat threat of large vertical plume growth for any fires that develop across the interior. The very hot and dry conditions will also cause a significant drop in both live and dead fuel moisture levels this week. These drying fuels combined with the expected fire weather conditions and increased outdoor activities will cause the large fire threat to become high for areas away from the coast Tuesday through next weekend. $$ ECC032-011045- Ventura County excluding Los Padres National Forest- Discussion for Ventura ECC Dispatch 931 AM PDT Sun Jun 30 2024 ...ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR VALLEYS, MOUNTAINS, AND DESERTS TODAY THROUGH MONDAY DUE TO HOT AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS... ...SIGNIFICANT INTERIOR HEAT WAVE AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS LIKELY TUESDAY THROUGH SUNDAY WILL LIKELY BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ACROSS VALLEYS, FOOTHILLS, MOUNTAINS, AND DESERTS WITH INCREASING VERTICAL PLUME GROWTH POTENTIAL... A broad upper level trough over the West Coast will gradually weaken through Monday. This will bring a gradual warming and drying trend to all areas through Monday with the best warming away from the coast. The marine inversion will remain quite shallow with night and morning low clouds and fog confined to the coastal plain. For the interior valleys, mountains, and deserts, humidity values are expected to lower to between 8 and 20 percent today and Monday. The hotter temperatures, low humidities, and locally gusty onshore winds will bring elevated fire weather conditions across the interior valleys, mountains, and deserts today through Monday. Beginning on Tuesday, and continuing into next weekend, high pressure will build into the region from the Eastern Pacific. This will likely bring a significant and long duration heat wave away from the coast from Tuesday through next weekend. High temperatures between 100 and 110 degrees will be common across the interior during this period, with temperatures potentially rising to between 110 and 115 degrees across the Antelope Valley and San Luis Obispo County interior valleys during the peak of the heat Thursday through Saturday. Overnight lows will also remain quite warm, adding to the potential for dangerous heat mid to late week. Widespread humidity values between 7 and 15 percent will likely occur across the interior during this period, along with poor humidity recoveries, especially in the mountains and foothills. Typical diurnal winds are still anticipated with gusty southwesterly winds across interior sections in the afternoon and evening. Given the very hot temperatures, low relative humidity, and locally gusty diurnal onshore winds, an extended period of elevated to brief critical fire weather conditions are likely from Tuesday through Sunday for valley, foothill, mountain, and desert locations. The hot and unstable conditions will also increase threat threat of large vertical plume growth for any fires that develop across the interior. The very hot and dry conditions will also cause a significant drop in both live and dead fuel moisture levels this week. These drying fuels combined with the expected fire weather conditions and increased outdoor activities will cause the large fire threat to become high for areas away from the coast Tuesday through next weekend. $$ ECC030-011045- Los Angeles County excluding Angeles National Forest- Discussion for Los Angeles ECC Dispatch 931 AM PDT Sun Jun 30 2024 ...ELEVATED FIRE WEATHER CONDITIONS ACROSS INTERIOR VALLEYS, MOUNTAINS, AND DESERTS TODAY THROUGH MONDAY DUE TO HOT AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS... ...SIGNIFICANT INTERIOR HEAT WAVE AND DRY CONDITIONS WITH LOCALLY GUSTY ONSHORE WINDS LIKELY TUESDAY THROUGH SUNDAY WILL LIKELY BRING ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS ACROSS VALLEYS, FOOTHILLS, MOUNTAINS, AND DESERTS WITH INCREASING VERTICAL PLUME GROWTH POTENTIAL... A broad upper level trough over the West Coast will gradually weaken through Monday. This will bring a gradual warming and drying trend to all areas through Monday with the best warming away from the coast. The marine inversion will remain quite shallow with night and morning low clouds and fog confined to the coastal plain. For the interior valleys, mountains, and deserts, humidity values are expected to lower to between 8 and 20 percent today and Monday. The hotter temperatures, low humidities, and locally gusty onshore winds will bring elevated fire weather conditions across the interior valleys, mountains, and deserts today through Monday. Beginning on Tuesday, and continuing into next weekend, high pressure will build into the region from the Eastern Pacific. This will likely bring a significant and long duration heat wave away from the coast from Tuesday through next weekend. High temperatures between 100 and 110 degrees will be common across the interior during this period, with temperatures potentially rising to between 110 and 115 degrees across the Antelope Valley and San Luis Obispo County interior valleys during the peak of the heat Thursday through Saturday. Overnight lows will also remain quite warm, adding to the potential for dangerous heat mid to late week. Widespread humidity values between 7 and 15 percent will likely occur across the interior during this period, along with poor humidity recoveries, especially in the mountains and foothills. Typical diurnal winds are still anticipated with gusty southwesterly winds across interior sections in the afternoon and evening. Given the very hot temperatures, low relative humidity, and locally gusty diurnal onshore winds, an extended period of elevated to brief critical fire weather conditions are likely from Tuesday through Sunday for valley, foothill, mountain, and desert locations. The hot and unstable conditions will also increase threat threat of large vertical plume growth for any fires that develop across the interior. The very hot and dry conditions will also cause a significant drop in both live and dead fuel moisture levels this week. These drying fuels combined with the expected fire weather conditions and increased outdoor activities will cause the large fire threat to become high for areas away from the coast Tuesday through next weekend. $$