Land Management Forecasts
Issued by NWS Los Angeles, CA

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FNUS86 KLOX 202221
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ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
321 PM PDT Thu Jul 20 2017

ECC029-211630-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
321 PM PDT Thu Jul 20 2017

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

...Elevated fire weather conditions are likely through Friday for
Southwestern Santa Barbara County and through the I-5 cooridor in
the Los Angeles and Ventura County mountains due to continued warm
and  dry conditions with locally gusty northwest winds...

Dry air aloft has worked into the Antelope Valley and adjacent
mountains this afternoon with humidities well into the single digits
across portions of the Antelope Valley and at higher elevation. The
dry conditions with locally gusty winds across the foothills will
likely bring brief critical fire weather conditions through early
this evening. Drier conditions across higher elevations are expected
to continue overnight with poor RH recoveries.

A gradual warming trend is expected through this weekend some
drying. Sundowner winds last night were a bit stronger then
expected. Sundowner winds tonight will likely be 5 to locally 10 mph
stronger  this evening (compared to Wednesday evening) peaking near
45 mph near Refugio, mainly west of Goleta, with humidities down up
to 5  percent. Some additional drying is possible for Friday`s
Sundowner  with similar winds. Locally gusty northwest winds are
also expected  across the LA and VTA mountains through the
I-5 cooridor peaking each evening through Friday with gusts up to
35 mph. The locally gusty  winds with humidities falling into the
15 to 30 percent range  (locally lower Friday evening) will bring
elevated fire weather  conditions to these areas.

A weak trough passing to the north could support some increase in
onshore winds with some cooling Sunday and Monday. Numerical model
guidance continues to show a possible surge of Monsoon moisture into
LA and VTA counties early next week, possibly supporting isolated
thunderstorms for interior areas during this time.


...Discussion from Monterey...

A shallow marine layer will impact the district again tonight with
moderate to locally poor humidity recoveries above the marine layer.
High pressure will build over the region leading to a district wide
warming and drying trend. Fire weather concerns over the next few
days will be Saturday and Sunday with peak heating and drying
combined with gusty afternoon winds. The ridge will weaken early
next week returning the region to more seasonable weather.

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



$$

ECC028-211630-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
321 PM PDT Thu Jul 20 2017

...Elevated fire weather conditions are likely through Friday for
Southwestern Santa Barbara County and through the I-5 cooridor in
the Los Angeles and Ventura County mountains due to continued warm
and  dry conditions with locally gusty northwest winds...

Dry air aloft has worked into the Antelope Valley and adjacent
mountains this afternoon with humidities well into the single digits
across portions of the Antelope Valley and at higher elevation. The
dry conditions with locally gusty winds across the foothills will
likely bring brief critical fire weather conditions through early
this evening. Drier conditions across higher elevations are expected
to continue overnight with poor RH recoveries.

A gradual warming trend is expected through this weekend some
drying. Sundowner winds last night were a bit stronger then
expected. Sundowner winds tonight will likely be 5 to locally 10 mph
stronger  this evening (compared to Wednesday evening) peaking near
45 mph near Refugio, mainly west of Goleta, with humidities down up
to 5  percent. Some additional drying is possible for Friday`s
Sundowner  with similar winds. Locally gusty northwest winds are
also expected  across the LA and VTA mountains through the
I-5 cooridor peaking each evening through Friday with gusts up to
35 mph. The locally gusty  winds with humidities falling into the
15 to 30 percent range  (locally lower Friday evening) will bring
elevated fire weather  conditions to these areas.

A weak trough passing to the north could support some increase in
onshore winds with some cooling Sunday and Monday. Numerical model
guidance continues to show a possible surge of Monsoon moisture into
LA and VTA counties early next week, possibly supporting isolated
thunderstorms for interior areas during this time.


$$

ECC031-211630-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
321 PM PDT Thu Jul 20 2017

...Elevated fire weather conditions are likely through Friday for
Southwestern Santa Barbara County and through the I-5 cooridor in
the Los Angeles and Ventura County mountains due to continued warm
and  dry conditions with locally gusty northwest winds...

Dry air aloft has worked into the Antelope Valley and adjacent
mountains this afternoon with humidities well into the single digits
across portions of the Antelope Valley and at higher elevation. The
dry conditions with locally gusty winds across the foothills will
likely bring brief critical fire weather conditions through early
this evening. Drier conditions across higher elevations are expected
to continue overnight with poor RH recoveries.

A gradual warming trend is expected through this weekend some
drying. Sundowner winds last night were a bit stronger then
expected. Sundowner winds tonight will likely be 5 to locally 10 mph
stronger  this evening (compared to Wednesday evening) peaking near
45 mph near Refugio, mainly west of Goleta, with humidities down up
to 5  percent. Some additional drying is possible for Friday`s
Sundowner  with similar winds. Locally gusty northwest winds are
also expected  across the LA and VTA mountains through the
I-5 cooridor peaking each evening through Friday with gusts up to
35 mph. The locally gusty  winds with humidities falling into the
15 to 30 percent range  (locally lower Friday evening) will bring
elevated fire weather  conditions to these areas.

A weak trough passing to the north could support some increase in
onshore winds with some cooling Sunday and Monday. Numerical model
guidance continues to show a possible surge of Monsoon moisture into
LA and VTA counties early next week, possibly supporting isolated
thunderstorms for interior areas during this time.


$$

ECC024-211630-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
321 PM PDT Thu Jul 20 2017

...Elevated fire weather conditions are likely through Friday for
Southwestern Santa Barbara County and through the I-5 cooridor in
the Los Angeles and Ventura County mountains due to continued warm
and  dry conditions with locally gusty northwest winds...

Dry air aloft has worked into the Antelope Valley and adjacent
mountains this afternoon with humidities well into the single digits
across portions of the Antelope Valley and at higher elevation. The
dry conditions with locally gusty winds across the foothills will
likely bring brief critical fire weather conditions through early
this evening. Drier conditions across higher elevations are expected
to continue overnight with poor RH recoveries.

A gradual warming trend is expected through this weekend some
drying. Sundowner winds last night were a bit stronger then
expected. Sundowner winds tonight will likely be 5 to locally 10 mph
stronger  this evening (compared to Wednesday evening) peaking near
45 mph near Refugio, mainly west of Goleta, with humidities down up
to 5  percent. Some additional drying is possible for Friday`s
Sundowner  with similar winds. Locally gusty northwest winds are
also expected  across the LA and VTA mountains through the
I-5 cooridor peaking each evening through Friday with gusts up to
35 mph. The locally gusty  winds with humidities falling into the
15 to 30 percent range  (locally lower Friday evening) will bring
elevated fire weather  conditions to these areas.

A weak trough passing to the north could support some increase in
onshore winds with some cooling Sunday and Monday. Numerical model
guidance continues to show a possible surge of Monsoon moisture into
LA and VTA counties early next week, possibly supporting isolated
thunderstorms for interior areas during this time.


$$

ECC032-211630-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
321 PM PDT Thu Jul 20 2017

...Elevated fire weather conditions are likely through Friday for
Southwestern Santa Barbara County and through the I-5 cooridor in
the Los Angeles and Ventura County mountains due to continued warm
and  dry conditions with locally gusty northwest winds...

Dry air aloft has worked into the Antelope Valley and adjacent
mountains this afternoon with humidities well into the single digits
across portions of the Antelope Valley and at higher elevation. The
dry conditions with locally gusty winds across the foothills will
likely bring brief critical fire weather conditions through early
this evening. Drier conditions across higher elevations are expected
to continue overnight with poor RH recoveries.

A gradual warming trend is expected through this weekend some
drying. Sundowner winds last night were a bit stronger then
expected. Sundowner winds tonight will likely be 5 to locally 10 mph
stronger  this evening (compared to Wednesday evening) peaking near
45 mph near Refugio, mainly west of Goleta, with humidities down up
to 5  percent. Some additional drying is possible for Friday`s
Sundowner  with similar winds. Locally gusty northwest winds are
also expected  across the LA and VTA mountains through the
I-5 cooridor peaking each evening through Friday with gusts up to
35 mph. The locally gusty  winds with humidities falling into the
15 to 30 percent range  (locally lower Friday evening) will bring
elevated fire weather  conditions to these areas.

A weak trough passing to the north could support some increase in
onshore winds with some cooling Sunday and Monday. Numerical model
guidance continues to show a possible surge of Monsoon moisture into
LA and VTA counties early next week, possibly supporting isolated
thunderstorms for interior areas during this time.


$$

ECC030-211630-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
321 PM PDT Thu Jul 20 2017

...Elevated fire weather conditions are likely through Friday for
Southwestern Santa Barbara County and through the I-5 cooridor in
the Los Angeles and Ventura County mountains due to continued warm
and  dry conditions with locally gusty northwest winds...

Dry air aloft has worked into the Antelope Valley and adjacent
mountains this afternoon with humidities well into the single digits
across portions of the Antelope Valley and at higher elevation. The
dry conditions with locally gusty winds across the foothills will
likely bring brief critical fire weather conditions through early
this evening. Drier conditions across higher elevations are expected
to continue overnight with poor RH recoveries.

A gradual warming trend is expected through this weekend some
drying. Sundowner winds last night were a bit stronger then
expected. Sundowner winds tonight will likely be 5 to locally 10 mph
stronger  this evening (compared to Wednesday evening) peaking near
45 mph near Refugio, mainly west of Goleta, with humidities down up
to 5  percent. Some additional drying is possible for Friday`s
Sundowner  with similar winds. Locally gusty northwest winds are
also expected  across the LA and VTA mountains through the
I-5 cooridor peaking each evening through Friday with gusts up to
35 mph. The locally gusty  winds with humidities falling into the
15 to 30 percent range  (locally lower Friday evening) will bring
elevated fire weather  conditions to these areas.

A weak trough passing to the north could support some increase in
onshore winds with some cooling Sunday and Monday. Numerical model
guidance continues to show a possible surge of Monsoon moisture into
LA and VTA counties early next week, possibly supporting isolated
thunderstorms for interior areas during this time.


$$



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