Land Management Forecasts
Issued by NWS Los Angeles, CA

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ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
303 PM PDT Thu Jul 4 2024

ECC029-051615-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
303 PM PDT Thu Jul 4 2024

...Discussion from Monterey...

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY FOR
CRITICALLY DRY FUELS AND LOW HUMIDITY FOR THE MARIN AND SONOMA
COASTAL RANGES...

...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, AND SANTA CRUZ MOUNTAINS...

...RED FLAG WARNING IN EFFECT FROM 9 AM FRIDAY TO 9 PM PDT SATURDAY
FOR WINDS, CRITICALLY DRY FUELS, AND LOW HUMIDITY FOR  SANTA LUCIA
MOUNTAINS, MOUNTAINS OF SAN BENTIO COUNTY AND INTERIOR MONTEREY
COUNTY, AND THE SOUTHERN SALINAS VALLEY...

Winds have calmed since yesterday, and are now gusting in the
15-25 mph range at higher elevations. Despite the wind improvement,
this prolonged heat wave will continue to bring very low RH that
will cure and dry the 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 FOR THE INTERSTATE 5 CORRIDOR, VENTURA
MOUNTAINS, AND SOUTHERN AND CENTRAL SANTA BARBARA COUNTIES...

...RED FLAG WARNING IN EFFECT ON FRIDAY OVER INTERIOR SAN LUIS
OBISPO  COUNTY AND CUYAMA VALLEY...

...WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS ELSEWHERE ACROSS
VALLEYS AND MOUNTAINS THROUGH MUCH OF NEXT WEEK, MOST SIGNIFICANT
FRIDAY AND  SATURDAY...

Long lasting and extremely hot conditions till continue through much
of next week. Friday and Saturday will likely be the hottest of the
period as onshore flow weakens, with a few all time records
threatened. Temperatures will continue to climb each day through the
week as  humidities fall and dry air expands. Over the mountains and
interior  valleys, high temperatures will climb to 108 to 118 by
Friday with  minimum humidities falling to 5 to 10 percent. Over the
coastal  valleys, high temperatures will climb to 100 to 110 by
Friday with minimum humidities falling to 10 to 20 percent. Coastal
areas will also warm and dry significantly, but exactly how the
marine layer behaves  will drive the magnitude. Sundowner winds will
likely clear the marine layer over southern Santa Barbara County and
allow temperatures to rise into the 90 to 100 degree range on Friday
with minimum humidities  falling to 12 to 25 percent...especially in
the foothills. Overnight  lows between 75 and 85 will be common in
the mountains, foothills and  deserts with moderately poor humidity
recoveries of 25 to 45 percent.  Meanwhile, the winds will turn to
northwest to northeast later today  through Friday, with gusts of
15 to 35 mph likely over many mountains   and the Antelope Valley.
While classic Red Flag thresholds will likely  not be met,
considering the extreme nature of this event and the holiday fire
ignition sources available, conditions are favorable for critical
fire weather activity and behavior.

Less hot conditions are likely for the coastal and adjacent valley
areas by Sunday or Monday, but the extremely hot conditions will
change  little over the at least the mountains and interior through
most if not all of next week. Gusty southwest winds are expected
over the interior areas on Sunday, which will lead to elevated to
brief critical conditions. 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
high risk for grass fires  and plume dominated wildfires. There is a
high risk for heat related  illness as well.


$$

ECC028-051615-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
303 PM PDT Thu Jul 4 2024

...RED FLAG WARNING IN EFFECT FOR THE INTERSTATE 5 CORRIDOR, VENTURA
MOUNTAINS, AND SOUTHERN AND CENTRAL SANTA BARBARA COUNTIES...

...RED FLAG WARNING IN EFFECT ON FRIDAY OVER INTERIOR SAN LUIS
OBISPO  COUNTY AND CUYAMA VALLEY...

...WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS ELSEWHERE ACROSS
VALLEYS AND MOUNTAINS THROUGH MUCH OF NEXT WEEK, MOST SIGNIFICANT
FRIDAY AND  SATURDAY...

Long lasting and extremely hot conditions till continue through much
of next week. Friday and Saturday will likely be the hottest of the
period as onshore flow weakens, with a few all time records
threatened. Temperatures will continue to climb each day through the
week as  humidities fall and dry air expands. Over the mountains and
interior  valleys, high temperatures will climb to 108 to 118 by
Friday with  minimum humidities falling to 5 to 10 percent. Over the
coastal  valleys, high temperatures will climb to 100 to 110 by
Friday with minimum humidities falling to 10 to 20 percent. Coastal
areas will also warm and dry significantly, but exactly how the
marine layer behaves  will drive the magnitude. Sundowner winds will
likely clear the marine layer over southern Santa Barbara County and
allow temperatures to rise into the 90 to 100 degree range on Friday
with minimum humidities  falling to 12 to 25 percent...especially in
the foothills. Overnight  lows between 75 and 85 will be common in
the mountains, foothills and  deserts with moderately poor humidity
recoveries of 25 to 45 percent.  Meanwhile, the winds will turn to
northwest to northeast later today  through Friday, with gusts of
15 to 35 mph likely over many mountains   and the Antelope Valley.
While classic Red Flag thresholds will likely  not be met,
considering the extreme nature of this event and the holiday fire
ignition sources available, conditions are favorable for critical
fire weather activity and behavior.

Less hot conditions are likely for the coastal and adjacent valley
areas by Sunday or Monday, but the extremely hot conditions will
change  little over the at least the mountains and interior through
most if not all of next week. Gusty southwest winds are expected
over the interior areas on Sunday, which will lead to elevated to
brief critical conditions. 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
high risk for grass fires  and plume dominated wildfires. There is a
high risk for heat related  illness as well.


$$

ECC031-051615-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
303 PM PDT Thu Jul 4 2024

...RED FLAG WARNING IN EFFECT FOR THE INTERSTATE 5 CORRIDOR, VENTURA
MOUNTAINS, AND SOUTHERN AND CENTRAL SANTA BARBARA COUNTIES...

...RED FLAG WARNING IN EFFECT ON FRIDAY OVER INTERIOR SAN LUIS
OBISPO  COUNTY AND CUYAMA VALLEY...

...WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS ELSEWHERE ACROSS
VALLEYS AND MOUNTAINS THROUGH MUCH OF NEXT WEEK, MOST SIGNIFICANT
FRIDAY AND  SATURDAY...

Long lasting and extremely hot conditions till continue through much
of next week. Friday and Saturday will likely be the hottest of the
period as onshore flow weakens, with a few all time records
threatened. Temperatures will continue to climb each day through the
week as  humidities fall and dry air expands. Over the mountains and
interior  valleys, high temperatures will climb to 108 to 118 by
Friday with  minimum humidities falling to 5 to 10 percent. Over the
coastal  valleys, high temperatures will climb to 100 to 110 by
Friday with minimum humidities falling to 10 to 20 percent. Coastal
areas will also warm and dry significantly, but exactly how the
marine layer behaves  will drive the magnitude. Sundowner winds will
likely clear the marine layer over southern Santa Barbara County and
allow temperatures to rise into the 90 to 100 degree range on Friday
with minimum humidities  falling to 12 to 25 percent...especially in
the foothills. Overnight  lows between 75 and 85 will be common in
the mountains, foothills and  deserts with moderately poor humidity
recoveries of 25 to 45 percent.  Meanwhile, the winds will turn to
northwest to northeast later today  through Friday, with gusts of
15 to 35 mph likely over many mountains   and the Antelope Valley.
While classic Red Flag thresholds will likely  not be met,
considering the extreme nature of this event and the holiday fire
ignition sources available, conditions are favorable for critical
fire weather activity and behavior.

Less hot conditions are likely for the coastal and adjacent valley
areas by Sunday or Monday, but the extremely hot conditions will
change  little over the at least the mountains and interior through
most if not all of next week. Gusty southwest winds are expected
over the interior areas on Sunday, which will lead to elevated to
brief critical conditions. 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
high risk for grass fires  and plume dominated wildfires. There is a
high risk for heat related  illness as well.


$$

ECC024-051615-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
303 PM PDT Thu Jul 4 2024

...RED FLAG WARNING IN EFFECT FOR THE INTERSTATE 5 CORRIDOR, VENTURA
MOUNTAINS, AND SOUTHERN AND CENTRAL SANTA BARBARA COUNTIES...

...RED FLAG WARNING IN EFFECT ON FRIDAY OVER INTERIOR SAN LUIS
OBISPO  COUNTY AND CUYAMA VALLEY...

...WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS ELSEWHERE ACROSS
VALLEYS AND MOUNTAINS THROUGH MUCH OF NEXT WEEK, MOST SIGNIFICANT
FRIDAY AND  SATURDAY...

Long lasting and extremely hot conditions till continue through much
of next week. Friday and Saturday will likely be the hottest of the
period as onshore flow weakens, with a few all time records
threatened. Temperatures will continue to climb each day through the
week as  humidities fall and dry air expands. Over the mountains and
interior  valleys, high temperatures will climb to 108 to 118 by
Friday with  minimum humidities falling to 5 to 10 percent. Over the
coastal  valleys, high temperatures will climb to 100 to 110 by
Friday with minimum humidities falling to 10 to 20 percent. Coastal
areas will also warm and dry significantly, but exactly how the
marine layer behaves  will drive the magnitude. Sundowner winds will
likely clear the marine layer over southern Santa Barbara County and
allow temperatures to rise into the 90 to 100 degree range on Friday
with minimum humidities  falling to 12 to 25 percent...especially in
the foothills. Overnight  lows between 75 and 85 will be common in
the mountains, foothills and  deserts with moderately poor humidity
recoveries of 25 to 45 percent.  Meanwhile, the winds will turn to
northwest to northeast later today  through Friday, with gusts of
15 to 35 mph likely over many mountains   and the Antelope Valley.
While classic Red Flag thresholds will likely  not be met,
considering the extreme nature of this event and the holiday fire
ignition sources available, conditions are favorable for critical
fire weather activity and behavior.

Less hot conditions are likely for the coastal and adjacent valley
areas by Sunday or Monday, but the extremely hot conditions will
change  little over the at least the mountains and interior through
most if not all of next week. Gusty southwest winds are expected
over the interior areas on Sunday, which will lead to elevated to
brief critical conditions. 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
high risk for grass fires  and plume dominated wildfires. There is a
high risk for heat related  illness as well.


$$

ECC032-051615-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
303 PM PDT Thu Jul 4 2024

...RED FLAG WARNING IN EFFECT FOR THE INTERSTATE 5 CORRIDOR, VENTURA
MOUNTAINS, AND SOUTHERN AND CENTRAL SANTA BARBARA COUNTIES...

...RED FLAG WARNING IN EFFECT ON FRIDAY OVER INTERIOR SAN LUIS
OBISPO  COUNTY AND CUYAMA VALLEY...

...WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS ELSEWHERE ACROSS
VALLEYS AND MOUNTAINS THROUGH MUCH OF NEXT WEEK, MOST SIGNIFICANT
FRIDAY AND  SATURDAY...

Long lasting and extremely hot conditions till continue through much
of next week. Friday and Saturday will likely be the hottest of the
period as onshore flow weakens, with a few all time records
threatened. Temperatures will continue to climb each day through the
week as  humidities fall and dry air expands. Over the mountains and
interior  valleys, high temperatures will climb to 108 to 118 by
Friday with  minimum humidities falling to 5 to 10 percent. Over the
coastal  valleys, high temperatures will climb to 100 to 110 by
Friday with minimum humidities falling to 10 to 20 percent. Coastal
areas will also warm and dry significantly, but exactly how the
marine layer behaves  will drive the magnitude. Sundowner winds will
likely clear the marine layer over southern Santa Barbara County and
allow temperatures to rise into the 90 to 100 degree range on Friday
with minimum humidities  falling to 12 to 25 percent...especially in
the foothills. Overnight  lows between 75 and 85 will be common in
the mountains, foothills and  deserts with moderately poor humidity
recoveries of 25 to 45 percent.  Meanwhile, the winds will turn to
northwest to northeast later today  through Friday, with gusts of
15 to 35 mph likely over many mountains   and the Antelope Valley.
While classic Red Flag thresholds will likely  not be met,
considering the extreme nature of this event and the holiday fire
ignition sources available, conditions are favorable for critical
fire weather activity and behavior.

Less hot conditions are likely for the coastal and adjacent valley
areas by Sunday or Monday, but the extremely hot conditions will
change  little over the at least the mountains and interior through
most if not all of next week. Gusty southwest winds are expected
over the interior areas on Sunday, which will lead to elevated to
brief critical conditions. 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
high risk for grass fires  and plume dominated wildfires. There is a
high risk for heat related  illness as well.


$$

ECC030-051615-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
303 PM PDT Thu Jul 4 2024

...RED FLAG WARNING IN EFFECT FOR THE INTERSTATE 5 CORRIDOR, VENTURA
MOUNTAINS, AND SOUTHERN AND CENTRAL SANTA BARBARA COUNTIES...

...RED FLAG WARNING IN EFFECT ON FRIDAY OVER INTERIOR SAN LUIS
OBISPO  COUNTY AND CUYAMA VALLEY...

...WIDESPREAD ELEVATED FIRE WEATHER CONDITIONS ELSEWHERE ACROSS
VALLEYS AND MOUNTAINS THROUGH MUCH OF NEXT WEEK, MOST SIGNIFICANT
FRIDAY AND  SATURDAY...

Long lasting and extremely hot conditions till continue through much
of next week. Friday and Saturday will likely be the hottest of the
period as onshore flow weakens, with a few all time records
threatened. Temperatures will continue to climb each day through the
week as  humidities fall and dry air expands. Over the mountains and
interior  valleys, high temperatures will climb to 108 to 118 by
Friday with  minimum humidities falling to 5 to 10 percent. Over the
coastal  valleys, high temperatures will climb to 100 to 110 by
Friday with minimum humidities falling to 10 to 20 percent. Coastal
areas will also warm and dry significantly, but exactly how the
marine layer behaves  will drive the magnitude. Sundowner winds will
likely clear the marine layer over southern Santa Barbara County and
allow temperatures to rise into the 90 to 100 degree range on Friday
with minimum humidities  falling to 12 to 25 percent...especially in
the foothills. Overnight  lows between 75 and 85 will be common in
the mountains, foothills and  deserts with moderately poor humidity
recoveries of 25 to 45 percent.  Meanwhile, the winds will turn to
northwest to northeast later today  through Friday, with gusts of
15 to 35 mph likely over many mountains   and the Antelope Valley.
While classic Red Flag thresholds will likely  not be met,
considering the extreme nature of this event and the holiday fire
ignition sources available, conditions are favorable for critical
fire weather activity and behavior.

Less hot conditions are likely for the coastal and adjacent valley
areas by Sunday or Monday, but the extremely hot conditions will
change  little over the at least the mountains and interior through
most if not all of next week. Gusty southwest winds are expected
over the interior areas on Sunday, which will lead to elevated to
brief critical conditions. 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
high risk for grass fires  and plume dominated wildfires. There is a
high risk for heat related  illness as well.


$$