Land Management Forecasts
Issued by NWS Los Angeles, CA

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ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
327 PM PDT Sun Sep 29 2024

ECC029-301630-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
327 PM PDT Sun Sep 29 2024

...Discussion from Monterey...

...Near critical fire weather concerns Monday through Thursday as light
offshore flow develops and above average temperatures allow fuels to
dry to critical levels...

Expect tonight to be the last night widespread cool temperatures and
good humidity recoveries before a much hotter  and drier pattern
settles into the region for the first half of the work week. Well
above average high temperatures with a mostly eroded marine layer
are expected and will make for widespread  warm and dry conditions.
High temperatures and light offshore  winds in the far interior
areas will bring the minimum RH into the low teens. Overnight
cooling will be limited in the interior areas as well as RH
recoveries. Winds will remain light to  moderate, and may flip to
onshore in the afternoons. As such, we  are not expecting to hit Red
Flag criteria. Onshore wind will  return in the second half of the
week, gradually decreasing fire  weather concerns.


Note : All winds are 20-foot Winds Unless otherwise specified.
Thunderstorms imply strong, gusty and erratic winds.



...Discussion from Los Angeles/Oxnard...

...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS MAINLY OVER THE
MOUNTAINS TODAY EXPANDING TO VALLEYS AND COASTAL  FOOTHILLS MONDAY
THROUGH WEDNESDAY WITH THREAT OF LARGE  VERTICAL PLUME GROWTH...

Warm and dry conditions are expected to continue away from the
coast through Wednesday. High temperatures between 90 and 100 will
be common through Monday, then increasing to 93 to 106 on Tuesday
and Wednesday. The warmer temperatures are expected to spread into
many of the valleys and coastal foothills Monday through Wednesday
as a weak offshore wind influence develops. Humidity levels will
fall to between 5 and 20 percent over the interior valleys,
mountains, and deserts today, with the drier air expanding into the
coastal valleys and foothills Monday through Wednesday. South to
east wind gusts of 20 to 30 mph will be common across the interior
today, strongest in the mountains. By Monday and Tuesday, the winds
will become more northeast to southeast over the interior, likely
expanding into other areas such as the Santa Lucias, Santa Susana
mountains, and portions of the  LA/Ventura county valleys. On
Monday, southeast winds gusting 20 to 30 mph will be common across
the San Gabriels and Ventura county mountains, with isolated gusts
as high as 35 mph across ridgetops.  Mixing heights are expected to
peak between 8,000 and 13,000 feet this afternoon across the
interior, then increase to between 10,000 and 17,000 feet Monday
through Wednesday due to increasing temperatures and instability. As
a result, there will be an increased risk of large vertical plume
growth of new fires across the interior Monday through Wednesday.
mainly in the mountains and foothills. The combination of hot
temperatures,  very low humidities, locally gusty winds and
potential for large vertical plume growth will result in elevated to
brief critical fire weather conditions today in the mountains,
expanding into the  Santa Lucias, Santa Susana mountains, and
portions of the valleys Monday into Wednesday. A slight cooling
trend could develop Thursday into Friday, then a possible offshore
wind influence may reinforce very warm and dry conditions next
weekend.


$$

ECC028-301630-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
327 PM PDT Sun Sep 29 2024

...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS MAINLY OVER THE
MOUNTAINS TODAY EXPANDING TO VALLEYS AND COASTAL  FOOTHILLS MONDAY
THROUGH WEDNESDAY WITH THREAT OF LARGE  VERTICAL PLUME GROWTH...

Warm and dry conditions are expected to continue away from the
coast through Wednesday. High temperatures between 90 and 100 will
be common through Monday, then increasing to 93 to 106 on Tuesday
and Wednesday. The warmer temperatures are expected to spread into
many of the valleys and coastal foothills Monday through Wednesday
as a weak offshore wind influence develops. Humidity levels will
fall to between 5 and 20 percent over the interior valleys,
mountains, and deserts today, with the drier air expanding into the
coastal valleys and foothills Monday through Wednesday. South to
east wind gusts of 20 to 30 mph will be common across the interior
today, strongest in the mountains. By Monday and Tuesday, the winds
will become more northeast to southeast over the interior, likely
expanding into other areas such as the Santa Lucias, Santa Susana
mountains, and portions of the  LA/Ventura county valleys. On
Monday, southeast winds gusting 20 to 30 mph will be common across
the San Gabriels and Ventura county mountains, with isolated gusts
as high as 35 mph across ridgetops.  Mixing heights are expected to
peak between 8,000 and 13,000 feet this afternoon across the
interior, then increase to between 10,000 and 17,000 feet Monday
through Wednesday due to increasing temperatures and instability. As
a result, there will be an increased risk of large vertical plume
growth of new fires across the interior Monday through Wednesday.
mainly in the mountains and foothills. The combination of hot
temperatures,  very low humidities, locally gusty winds and
potential for large vertical plume growth will result in elevated to
brief critical fire weather conditions today in the mountains,
expanding into the  Santa Lucias, Santa Susana mountains, and
portions of the valleys Monday into Wednesday. A slight cooling
trend could develop Thursday into Friday, then a possible offshore
wind influence may reinforce very warm and dry conditions next
weekend.


$$

ECC031-301630-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
327 PM PDT Sun Sep 29 2024

...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS MAINLY OVER THE
MOUNTAINS TODAY EXPANDING TO VALLEYS AND COASTAL  FOOTHILLS MONDAY
THROUGH WEDNESDAY WITH THREAT OF LARGE  VERTICAL PLUME GROWTH...

Warm and dry conditions are expected to continue away from the
coast through Wednesday. High temperatures between 90 and 100 will
be common through Monday, then increasing to 93 to 106 on Tuesday
and Wednesday. The warmer temperatures are expected to spread into
many of the valleys and coastal foothills Monday through Wednesday
as a weak offshore wind influence develops. Humidity levels will
fall to between 5 and 20 percent over the interior valleys,
mountains, and deserts today, with the drier air expanding into the
coastal valleys and foothills Monday through Wednesday. South to
east wind gusts of 20 to 30 mph will be common across the interior
today, strongest in the mountains. By Monday and Tuesday, the winds
will become more northeast to southeast over the interior, likely
expanding into other areas such as the Santa Lucias, Santa Susana
mountains, and portions of the  LA/Ventura county valleys. On
Monday, southeast winds gusting 20 to 30 mph will be common across
the San Gabriels and Ventura county mountains, with isolated gusts
as high as 35 mph across ridgetops.  Mixing heights are expected to
peak between 8,000 and 13,000 feet this afternoon across the
interior, then increase to between 10,000 and 17,000 feet Monday
through Wednesday due to increasing temperatures and instability. As
a result, there will be an increased risk of large vertical plume
growth of new fires across the interior Monday through Wednesday.
mainly in the mountains and foothills. The combination of hot
temperatures,  very low humidities, locally gusty winds and
potential for large vertical plume growth will result in elevated to
brief critical fire weather conditions today in the mountains,
expanding into the  Santa Lucias, Santa Susana mountains, and
portions of the valleys Monday into Wednesday. A slight cooling
trend could develop Thursday into Friday, then a possible offshore
wind influence may reinforce very warm and dry conditions next
weekend.


$$

ECC024-301630-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
327 PM PDT Sun Sep 29 2024

...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS MAINLY OVER THE
MOUNTAINS TODAY EXPANDING TO VALLEYS AND COASTAL  FOOTHILLS MONDAY
THROUGH WEDNESDAY WITH THREAT OF LARGE  VERTICAL PLUME GROWTH...

Warm and dry conditions are expected to continue away from the
coast through Wednesday. High temperatures between 90 and 100 will
be common through Monday, then increasing to 93 to 106 on Tuesday
and Wednesday. The warmer temperatures are expected to spread into
many of the valleys and coastal foothills Monday through Wednesday
as a weak offshore wind influence develops. Humidity levels will
fall to between 5 and 20 percent over the interior valleys,
mountains, and deserts today, with the drier air expanding into the
coastal valleys and foothills Monday through Wednesday. South to
east wind gusts of 20 to 30 mph will be common across the interior
today, strongest in the mountains. By Monday and Tuesday, the winds
will become more northeast to southeast over the interior, likely
expanding into other areas such as the Santa Lucias, Santa Susana
mountains, and portions of the  LA/Ventura county valleys. On
Monday, southeast winds gusting 20 to 30 mph will be common across
the San Gabriels and Ventura county mountains, with isolated gusts
as high as 35 mph across ridgetops.  Mixing heights are expected to
peak between 8,000 and 13,000 feet this afternoon across the
interior, then increase to between 10,000 and 17,000 feet Monday
through Wednesday due to increasing temperatures and instability. As
a result, there will be an increased risk of large vertical plume
growth of new fires across the interior Monday through Wednesday.
mainly in the mountains and foothills. The combination of hot
temperatures,  very low humidities, locally gusty winds and
potential for large vertical plume growth will result in elevated to
brief critical fire weather conditions today in the mountains,
expanding into the  Santa Lucias, Santa Susana mountains, and
portions of the valleys Monday into Wednesday. A slight cooling
trend could develop Thursday into Friday, then a possible offshore
wind influence may reinforce very warm and dry conditions next
weekend.


$$

ECC032-301630-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
327 PM PDT Sun Sep 29 2024

...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS MAINLY OVER THE
MOUNTAINS TODAY EXPANDING TO VALLEYS AND COASTAL  FOOTHILLS MONDAY
THROUGH WEDNESDAY WITH THREAT OF LARGE  VERTICAL PLUME GROWTH...

Warm and dry conditions are expected to continue away from the
coast through Wednesday. High temperatures between 90 and 100 will
be common through Monday, then increasing to 93 to 106 on Tuesday
and Wednesday. The warmer temperatures are expected to spread into
many of the valleys and coastal foothills Monday through Wednesday
as a weak offshore wind influence develops. Humidity levels will
fall to between 5 and 20 percent over the interior valleys,
mountains, and deserts today, with the drier air expanding into the
coastal valleys and foothills Monday through Wednesday. South to
east wind gusts of 20 to 30 mph will be common across the interior
today, strongest in the mountains. By Monday and Tuesday, the winds
will become more northeast to southeast over the interior, likely
expanding into other areas such as the Santa Lucias, Santa Susana
mountains, and portions of the  LA/Ventura county valleys. On
Monday, southeast winds gusting 20 to 30 mph will be common across
the San Gabriels and Ventura county mountains, with isolated gusts
as high as 35 mph across ridgetops.  Mixing heights are expected to
peak between 8,000 and 13,000 feet this afternoon across the
interior, then increase to between 10,000 and 17,000 feet Monday
through Wednesday due to increasing temperatures and instability. As
a result, there will be an increased risk of large vertical plume
growth of new fires across the interior Monday through Wednesday.
mainly in the mountains and foothills. The combination of hot
temperatures,  very low humidities, locally gusty winds and
potential for large vertical plume growth will result in elevated to
brief critical fire weather conditions today in the mountains,
expanding into the  Santa Lucias, Santa Susana mountains, and
portions of the valleys Monday into Wednesday. A slight cooling
trend could develop Thursday into Friday, then a possible offshore
wind influence may reinforce very warm and dry conditions next
weekend.


$$

ECC030-301630-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
327 PM PDT Sun Sep 29 2024

...ELEVATED TO BRIEF CRITICAL FIRE WEATHER CONDITIONS MAINLY OVER THE
MOUNTAINS TODAY EXPANDING TO VALLEYS AND COASTAL  FOOTHILLS MONDAY
THROUGH WEDNESDAY WITH THREAT OF LARGE  VERTICAL PLUME GROWTH...

Warm and dry conditions are expected to continue away from the
coast through Wednesday. High temperatures between 90 and 100 will
be common through Monday, then increasing to 93 to 106 on Tuesday
and Wednesday. The warmer temperatures are expected to spread into
many of the valleys and coastal foothills Monday through Wednesday
as a weak offshore wind influence develops. Humidity levels will
fall to between 5 and 20 percent over the interior valleys,
mountains, and deserts today, with the drier air expanding into the
coastal valleys and foothills Monday through Wednesday. South to
east wind gusts of 20 to 30 mph will be common across the interior
today, strongest in the mountains. By Monday and Tuesday, the winds
will become more northeast to southeast over the interior, likely
expanding into other areas such as the Santa Lucias, Santa Susana
mountains, and portions of the  LA/Ventura county valleys. On
Monday, southeast winds gusting 20 to 30 mph will be common across
the San Gabriels and Ventura county mountains, with isolated gusts
as high as 35 mph across ridgetops.  Mixing heights are expected to
peak between 8,000 and 13,000 feet this afternoon across the
interior, then increase to between 10,000 and 17,000 feet Monday
through Wednesday due to increasing temperatures and instability. As
a result, there will be an increased risk of large vertical plume
growth of new fires across the interior Monday through Wednesday.
mainly in the mountains and foothills. The combination of hot
temperatures,  very low humidities, locally gusty winds and
potential for large vertical plume growth will result in elevated to
brief critical fire weather conditions today in the mountains,
expanding into the  Santa Lucias, Santa Susana mountains, and
portions of the valleys Monday into Wednesday. A slight cooling
trend could develop Thursday into Friday, then a possible offshore
wind influence may reinforce very warm and dry conditions next
weekend.


$$