Land Management Forecasts
Issued by NWS Los Angeles, CA

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ECCDA Discussions
National Weather Service Los Angeles/Oxnard CA
347 PM PST Thu Dec 14 2017

ECC029-151800-
Los Padres National Forest-
Discussion for Vandenberg ECC Dispatch
347 PM PST Thu Dec 14 2017

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

...RED FLAG WARNINGS IN EFFECT FOR MUCH OF LOS ANGELES AND VENTURA
COUNTIES THROUGH FRIDAY MORNING DUE TO GUSTY NORTHEAST WINDS AND LOW
RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM LATE FRIDAY NIGHT THROUGH
SATURDAY EVENING FOR GUSTY NORTH TO NORTHEAST WINDS AND LOW
RELATIVE HUMIDITY FOR THE SANTA BARBARA COUNTY MOUNTAINS...

...FIRE WEATHER WATCH IN EFFECT FROM LATE LATE SATURDAY NIGHT
THROUGH SUNDAY EVENING FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE
HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS AND
VALLEYS...

...POTENTIAL FOR ADDITIONAL SANTA ANA WINDS AND LOW HUMIDITIES
THURSDAY INTO FRIDAY OF NEXT WEEK...

The extended period of offshore flow will continue into Friday
morning...focused over Los Angeles and Ventura Counties. The
strongest northeast winds are expected through this evening, with
gusts 40 to 50 mph across the Los Angeles and Ventura county
mountains, and between 35 and 45 mph across coastal and valley
areas. These gusty offshore winds will create the potential for very
rapid fire spread, long range spotting, and extreme fire behavior
with existing fires and any new ignitions. The humidities will
remain very dry today and Friday with widespread single digit
humidities, along with very poor overnight recoveries tonight. This
will result in continued critical fire weather conditions into
Friday morning, especially through this evening.

The Santa Barbara County Mountains (including the upper elevations
of the Thomas Fire) will likely experience near critical fire
weather conditions through this evening with offshore winds gusts up
to 25 mph combined with single digit humidities. North to  northeast
winds gusting between 30 and 40 mph, possibly stronger,  with
continued low humidities are likely across the Santa Barbara  county
mountains and adjacent foothills late Friday night into  Saturday,
prompting the issuance of the Fire Weather Watch. Gusty  northerly
winds could surface into the Santa Barbara county south  coast as
well, but winds at this time are not expected to be  strong enough
to warrant Red Flag conditions.

For Ventura and Los Angeles counties, the flow may begin to shift to
the northeast again during the day Saturday, with a greater threat
of increased Santa Ana winds and low humidities later Saturday night
into Sunday when gusts between 35 and 55 mph will be possible. A
Fire Weather Watch has been issued for late Saturday night into
Sunday evening for the mountains and valleys of Los Angeles and
Ventura counties. An additional Santa Ana wind event will be
possible next Thursday into Friday.


...Discussion from Monterey...

...Gusty northerly winds will combine with very low humidity values
Friday evening through Sunday morning...

...Fire Weather Watch in effect from 10 pm Friday evening through
10 am Sunday morning for gusty winds and low humidity values for
fire weather zones 507, 511, 512, 517, and 518...

An upper level high pressure area over California  will move west
out over the eastern Pacific late this week allowing a mainly dry
cold front and upper level trough to move southeast  across the
district Friday night into early Saturday morning. A fire weather
watch is in effect Friday evening through Sunday morning due to
gusty northerly winds combining with very low humidity values over
the hills and mountains in the wake of this front. Dry weather then
continues this weekend with generally poor recoveries in the
mountains. It`s a low confidence forecast at this point, but a dry
pattern may turn to a wet weather pattern by the middle of next
week.

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



$$

ECC028-151800-
Santa Barbara County excluding Los Padres National Forest-
Discussion for Santa Barbara ECC Dispatch
347 PM PST Thu Dec 14 2017


The extended period of offshore flow will continue into Friday
morning...focused over Los Angeles and Ventura Counties. The
strongest northeast winds are expected through this evening, with
gusts 40 to 50 mph across the Los Angeles and Ventura county
mountains, and between 35 and 45 mph across coastal and valley
areas. These gusty offshore winds will create the potential for very
rapid fire spread, long range spotting, and extreme fire behavior
with existing fires and any new ignitions. The humidities will
remain very dry today and Friday with widespread single digit
humidities, along with very poor overnight recoveries tonight. This
will result in continued critical fire weather conditions into
Friday morning, especially through this evening.

The Santa Barbara County Mountains (including the upper elevations
of the Thomas Fire) will likely experience near critical fire
weather conditions through this evening with offshore winds gusts up
to 25 mph combined with single digit humidities. North to  northeast
winds gusting between 30 and 40 mph, possibly stronger,  with
continued low humidities are likely across the Santa Barbara  county
mountains and adjacent foothills late Friday night into  Saturday,
prompting the issuance of the Fire Weather Watch. Gusty  northerly
winds could surface into the Santa Barbara county south  coast as
well, but winds at this time are not expected to be  strong enough
to warrant Red Flag conditions.

For Ventura and Los Angeles counties, the flow may begin to shift to
the northeast again during the day Saturday, with a greater threat
of increased Santa Ana winds and low humidities later Saturday night
into Sunday when gusts between 35 and 55 mph will be possible. A
Fire Weather Watch has been issued for late Saturday night into
Sunday evening for the mountains and valleys of Los Angeles and
Ventura counties. An additional Santa Ana wind event will be
possible next Thursday into Friday.


$$

ECC031-151800-
Angeles National Forest-
Discussion for Lancaster ECC Dispatch
347 PM PST Thu Dec 14 2017

...RED FLAG WARNINGS IN EFFECT FOR MUCH OF LOS ANGELES AND VENTURA
COUNTIES THROUGH FRIDAY MORNING DUE TO GUSTY NORTHEAST WINDS AND LOW
RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM LATE LATE SATURDAY NIGHT
THROUGH SUNDAY EVENING FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE
HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS AND
VALLEYS...

...POTENTIAL FOR ADDITIONAL SANTA ANA WINDS AND LOW HUMIDITIES
THURSDAY INTO FRIDAY OF NEXT WEEK...

The extended period of offshore flow will continue into Friday
morning...focused over Los Angeles and Ventura Counties. The
strongest northeast winds are expected through this evening, with
gusts 40 to 50 mph across the Los Angeles and Ventura county
mountains, and between 35 and 45 mph across coastal and valley
areas. These gusty offshore winds will create the potential for very
rapid fire spread, long range spotting, and extreme fire behavior
with existing fires and any new ignitions. The humidities will
remain very dry today and Friday with widespread single digit
humidities, along with very poor overnight recoveries tonight. This
will result in continued critical fire weather conditions into
Friday morning, especially through this evening.

The Santa Barbara County Mountains (including the upper elevations
of the Thomas Fire) will likely experience near critical fire
weather conditions through this evening with offshore winds gusts up
to 25 mph combined with single digit humidities. North to  northeast
winds gusting between 30 and 40 mph, possibly stronger,  with
continued low humidities are likely across the Santa Barbara  county
mountains and adjacent foothills late Friday night into  Saturday,
prompting the issuance of the Fire Weather Watch. Gusty  northerly
winds could surface into the Santa Barbara county south  coast as
well, but winds at this time are not expected to be  strong enough
to warrant Red Flag conditions.

For Ventura and Los Angeles counties, the flow may begin to shift to
the northeast again during the day Saturday, with a greater threat
of increased Santa Ana winds and low humidities later Saturday night
into Sunday when gusts between 35 and 55 mph will be possible. A
Fire Weather Watch has been issued for late Saturday night into
Sunday evening for the mountains and valleys of Los Angeles and
Ventura counties. An additional Santa Ana wind event will be
possible next Thursday into Friday.


$$

ECC024-151800-
San Luis Obispo County-
Discussion for San Luis Obispo ECC Dispatch
347 PM PST Thu Dec 14 2017


The extended period of offshore flow will continue into Friday
morning...focused over Los Angeles and Ventura Counties. The
strongest northeast winds are expected through this evening, with
gusts 40 to 50 mph across the Los Angeles and Ventura county
mountains, and between 35 and 45 mph across coastal and valley
areas. These gusty offshore winds will create the potential for very
rapid fire spread, long range spotting, and extreme fire behavior
with existing fires and any new ignitions. The humidities will
remain very dry today and Friday with widespread single digit
humidities, along with very poor overnight recoveries tonight. This
will result in continued critical fire weather conditions into
Friday morning, especially through this evening.

The Santa Barbara County Mountains (including the upper elevations
of the Thomas Fire) will likely experience near critical fire
weather conditions through this evening with offshore winds gusts up
to 25 mph combined with single digit humidities. North to  northeast
winds gusting between 30 and 40 mph, possibly stronger,  with
continued low humidities are likely across the Santa Barbara  county
mountains and adjacent foothills late Friday night into  Saturday,
prompting the issuance of the Fire Weather Watch. Gusty  northerly
winds could surface into the Santa Barbara county south  coast as
well, but winds at this time are not expected to be  strong enough
to warrant Red Flag conditions.

For Ventura and Los Angeles counties, the flow may begin to shift to
the northeast again during the day Saturday, with a greater threat
of increased Santa Ana winds and low humidities later Saturday night
into Sunday when gusts between 35 and 55 mph will be possible. A
Fire Weather Watch has been issued for late Saturday night into
Sunday evening for the mountains and valleys of Los Angeles and
Ventura counties. An additional Santa Ana wind event will be
possible next Thursday into Friday.


$$

ECC032-151800-
Ventura County excluding Los Padres National Forest-
Discussion for Ventura ECC Dispatch
347 PM PST Thu Dec 14 2017

...RED FLAG WARNINGS IN EFFECT FOR MUCH OF LOS ANGELES AND VENTURA
COUNTIES THROUGH FRIDAY MORNING DUE TO GUSTY NORTHEAST WINDS AND LOW
RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM LATE LATE SATURDAY NIGHT
THROUGH SUNDAY EVENING FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE
HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS AND
VALLEYS...

...POTENTIAL FOR ADDITIONAL SANTA ANA WINDS AND LOW HUMIDITIES
THURSDAY INTO FRIDAY OF NEXT WEEK...

The extended period of offshore flow will continue into Friday
morning...focused over Los Angeles and Ventura Counties. The
strongest northeast winds are expected through this evening, with
gusts 40 to 50 mph across the Los Angeles and Ventura county
mountains, and between 35 and 45 mph across coastal and valley
areas. These gusty offshore winds will create the potential for very
rapid fire spread, long range spotting, and extreme fire behavior
with existing fires and any new ignitions. The humidities will
remain very dry today and Friday with widespread single digit
humidities, along with very poor overnight recoveries tonight. This
will result in continued critical fire weather conditions into
Friday morning, especially through this evening.

The Santa Barbara County Mountains (including the upper elevations
of the Thomas Fire) will likely experience near critical fire
weather conditions through this evening with offshore winds gusts up
to 25 mph combined with single digit humidities. North to  northeast
winds gusting between 30 and 40 mph, possibly stronger,  with
continued low humidities are likely across the Santa Barbara  county
mountains and adjacent foothills late Friday night into  Saturday,
prompting the issuance of the Fire Weather Watch. Gusty  northerly
winds could surface into the Santa Barbara county south  coast as
well, but winds at this time are not expected to be  strong enough
to warrant Red Flag conditions.

For Ventura and Los Angeles counties, the flow may begin to shift to
the northeast again during the day Saturday, with a greater threat
of increased Santa Ana winds and low humidities later Saturday night
into Sunday when gusts between 35 and 55 mph will be possible. A
Fire Weather Watch has been issued for late Saturday night into
Sunday evening for the mountains and valleys of Los Angeles and
Ventura counties. An additional Santa Ana wind event will be
possible next Thursday into Friday.


$$

ECC030-151800-
Los Angeles County excluding Angeles National Forest-
Discussion for Los Angeles ECC Dispatch
347 PM PST Thu Dec 14 2017

...RED FLAG WARNINGS IN EFFECT FOR MUCH OF LOS ANGELES AND VENTURA
COUNTIES THROUGH FRIDAY MORNING DUE TO GUSTY NORTHEAST WINDS AND LOW
RELATIVE HUMIDITY...

...FIRE WEATHER WATCH IN EFFECT FROM LATE LATE SATURDAY NIGHT
THROUGH SUNDAY EVENING FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE
HUMIDITY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS AND
VALLEYS...

...POTENTIAL FOR ADDITIONAL SANTA ANA WINDS AND LOW HUMIDITIES
THURSDAY INTO FRIDAY OF NEXT WEEK...

The extended period of offshore flow will continue into Friday
morning...focused over Los Angeles and Ventura Counties. The
strongest northeast winds are expected through this evening, with
gusts 40 to 50 mph across the Los Angeles and Ventura county
mountains, and between 35 and 45 mph across coastal and valley
areas. These gusty offshore winds will create the potential for very
rapid fire spread, long range spotting, and extreme fire behavior
with existing fires and any new ignitions. The humidities will
remain very dry today and Friday with widespread single digit
humidities, along with very poor overnight recoveries tonight. This
will result in continued critical fire weather conditions into
Friday morning, especially through this evening.

The Santa Barbara County Mountains (including the upper elevations
of the Thomas Fire) will likely experience near critical fire
weather conditions through this evening with offshore winds gusts up
to 25 mph combined with single digit humidities. North to  northeast
winds gusting between 30 and 40 mph, possibly stronger,  with
continued low humidities are likely across the Santa Barbara  county
mountains and adjacent foothills late Friday night into  Saturday,
prompting the issuance of the Fire Weather Watch. Gusty  northerly
winds could surface into the Santa Barbara county south  coast as
well, but winds at this time are not expected to be  strong enough
to warrant Red Flag conditions.

For Ventura and Los Angeles counties, the flow may begin to shift to
the northeast again during the day Saturday, with a greater threat
of increased Santa Ana winds and low humidities later Saturday night
into Sunday when gusts between 35 and 55 mph will be possible. A
Fire Weather Watch has been issued for late Saturday night into
Sunday evening for the mountains and valleys of Los Angeles and
Ventura counties. An additional Santa Ana wind event will be
possible next Thursday into Friday.


$$


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