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Red Flag Warning


URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
259 PM PST Wed Dec 13 2017

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

.DISCUSSION...The extended period of offshore flow will continue
into Friday morning...focused over Los Angeles and Ventura
Counties. Light offshore winds and single digit humidities will
continue across interior sections of Los Angeles and Ventura
counties through tonight. Strengthening offshore winds are
expected Thursday into Thursday night, when gusts between 35 and
55 mph can be expected, resulting in the potential for very rapid
fire spread, long range spotting, and extreme fire behavior. The
humidities will remain incredibly dry with extremely poor
overnight recoveries nearly everywhere. This will result in
continued critical fire weather conditions into Friday
morning, especially Thursday and Thursday night when the winds
peak.

The Santa Barbara County Mountains could experience near critical
conditions Thursday afternoon into Thursday night with gusts
up to 25 mph combined with single digit humidities. In addition,
the air mass will be fairly unstable above the Thomas Fire today,
resulting in a greater risk for large fire plumes which will
locally enhance winds near the fire and cause erratic fire
behavior.

CAZ244>246-288-141800-
/O.CON.KLOX.FW.W.0009.000000T0000Z-171215T1800Z/
Ventura County Interior Valleys-Ventura County Coastal Valleys-
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
259 PM PST Wed Dec 13 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR
GUSTY NORTHEAST WINDS AND LOW RELATIVE HUMIDITY OVER THE VENTURA
VALLEYS, THE SANTA CLARITA VALLEY, AND THE SANTA MONICA
MOUNTAINS...

* Winds...Northeast winds increasing to 20 to 35 mph with gusts
  40 to 50 mph Thursday into Thursday night.

* Relative Humidity...Daily minimum 2 to 6 percent today
  becoming 3 to 10 percent on Thursday. Very poor overnight
  recovery.

* Impacts...If fire ignition occurs, there will be the potential
  for very rapid spread of wildfire, long range spotting, and
  extreme fire behavior that could lead to a threat to life and
  property. Use extreme caution with potential fire ignition
  sources.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of gusty winds and low relative
humidity can contribute to extreme fire behavior. Use extreme
caution when using potential fire ignition sources. This is a
dangerous situation, please follow evacuation orders.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
259 PM PST Wed Dec 13 2017

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

.DISCUSSION...The extended period of offshore flow will continue
into Friday morning...focused over Los Angeles and Ventura
Counties. Light offshore winds and single digit humidities will
continue across interior sections of Los Angeles and Ventura
counties through tonight. Strengthening offshore winds are
expected Thursday into Thursday night, when gusts between 35 and
55 mph can be expected, resulting in the potential for very rapid
fire spread, long range spotting, and extreme fire behavior. The
humidities will remain incredibly dry with extremely poor
overnight recoveries nearly everywhere. This will result in
continued critical fire weather conditions into Friday
morning, especially Thursday and Thursday night when the winds
peak.

The Santa Barbara County Mountains could experience near critical
conditions Thursday afternoon into Thursday night with gusts
up to 25 mph combined with single digit humidities. In addition,
the air mass will be fairly unstable above the Thomas Fire today,
resulting in a greater risk for large fire plumes which will
locally enhance winds near the fire and cause erratic fire
behavior.

CAZ253-254-141800-
/O.CON.KLOX.FW.W.0009.000000T0000Z-171215T1800Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
259 PM PST Wed Dec 13 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR
GUSTY NORTHEAST WINDS AND LOW RELATIVE HUMIDITY OVER THE LOS
ANGELES AND VENTURA COUNTY MOUNTAINS...

* Winds...Northeast 10 to 25 mph with gusts to 35 mph,
  increasing to 20 to 35 mph with gusts to 55 mph Thursday into
  Thursday night.

* Relative Humidity...Daily minimum 2 to 6 percent today
  becoming 5 to 10 percent on Thursday. Very poor overnight
  recovery.

* Impacts...If fire ignition occurs, there will be the potential
  for very rapid spread of wildfire, long range spotting, and
  extreme fire behavior that could lead to a threat to life and
  property. Use extreme caution with potential fire ignition
  sources.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of gusty winds and low relative
humidity can contribute to extreme fire behavior. Use extreme
caution when using potential fire ignition sources. This is a
dangerous situation, please follow evacuation orders.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
259 PM PST Wed Dec 13 2017

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

.DISCUSSION...The extended period of offshore flow will continue
into Friday morning...focused over Los Angeles and Ventura
Counties. Light offshore winds and single digit humidities will
continue across interior sections of Los Angeles and Ventura
counties through tonight. Strengthening offshore winds are
expected Thursday into Thursday night, when gusts between 35 and
55 mph can be expected, resulting in the potential for very rapid
fire spread, long range spotting, and extreme fire behavior. The
humidities will remain incredibly dry with extremely poor
overnight recoveries nearly everywhere. This will result in
continued critical fire weather conditions into Friday
morning, especially Thursday and Thursday night when the winds
peak.

The Santa Barbara County Mountains could experience near critical
conditions Thursday afternoon into Thursday night with gusts
up to 25 mph combined with single digit humidities. In addition,
the air mass will be fairly unstable above the Thomas Fire today,
resulting in a greater risk for large fire plumes which will
locally enhance winds near the fire and cause erratic fire
behavior.

CAZ547-141800-
/O.CON.KLOX.FW.W.0009.171214T1200Z-171215T1800Z/
Los Angeles County San Fernando Valley-
259 PM PST Wed Dec 13 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 10 AM
PST FRIDAY FOR GUSTY NORTH TO NORTHEAST WINDS AND LOW RELATIVE
HUMIDITY FOR THE SAN FERNANDO VALLEY...

* Winds...North to northeast 15 to 30 mph with gusts to 45 mph
  Thursday into Friday morning...strongest northern and western
  portions.

* Relative Humidity...Minimum 3 to 8 percent with very poor
  overnight recovery.

* Impacts...If fire ignition occurs, there will be the potential
  for very rapid spread of wildfire, long range spotting, and
  extreme fire behavior that could lead to a threat to life and
  property. Use extreme caution with potential fire ignition
  sources.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
will be occurring shortly. A combination of strong winds...low
relative humidity...and warm temperatures can contribute to
extreme fire behavior.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
259 PM PST Wed Dec 13 2017

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

.DISCUSSION...The extended period of offshore flow will continue
into Friday morning...focused over Los Angeles and Ventura
Counties. Light offshore winds and single digit humidities will
continue across interior sections of Los Angeles and Ventura
counties through tonight. Strengthening offshore winds are
expected Thursday into Thursday night, when gusts between 35 and
55 mph can be expected, resulting in the potential for very rapid
fire spread, long range spotting, and extreme fire behavior. The
humidities will remain incredibly dry with extremely poor
overnight recoveries nearly everywhere. This will result in
continued critical fire weather conditions into Friday
morning, especially Thursday and Thursday night when the winds
peak.

The Santa Barbara County Mountains could experience near critical
conditions Thursday afternoon into Thursday night with gusts
up to 25 mph combined with single digit humidities. In addition,
the air mass will be fairly unstable above the Thomas Fire today,
resulting in a greater risk for large fire plumes which will
locally enhance winds near the fire and cause erratic fire
behavior.

CAZ240-241-141800-
/O.CON.KLOX.FW.W.0009.171214T1400Z-171215T1800Z/
Ventura County Coast-
Los Angeles County Coast including Downtown Los Angeles-
259 PM PST Wed Dec 13 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 6 AM THURSDAY TO 10 AM
PST FRIDAY FOR GUSTY NORTHEAST WINDS AND LOW RELATIVE HUMIDITY
FOR THE VENTURA COAST AND LOS ANGELES COAST FROM MALIBU TO
HOLLYWOOD HILLS...

* Winds...Northeast 15 to 25 mph with gusts to 40 mph Thursday
  into Friday morning...except 20 to 30 mph with gusts to 45 mph
  across the eastern portions of the Ventura county coastal
  plain.

* Relative Humidity...Minimum 3 to 10 percent with very poor
  overnight recovery.

* Impacts...If fire ignition occurs, there will be the potential
  for very rapid spread of wildfire. long range spotting, and
  extreme fire behavior that could lead to a threat to life and
  property. Use extreme caution with potential fire ignition
  sources.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
will be occurring shortly. A combination of strong winds...low
relative humidity...and warm temperatures can contribute to
extreme fire behavior.

&&

$$

Gomberg/Kittell

URGENT - FIRE WEATHER MESSAGE
National Weather Service Hanford CA
432 PM PST Wed Dec 13 2017

...Red Flag Warning for the Sierra Nevada and Kern County
Mountains now in effect through Friday evening for extended
periods of low humidity...

.A strong ridge of high pressure over central California along
with an offshore flow is creating very dry conditions. Prolonged
periods of single digit humidities are occurring across the
mountains and will continue through at least Friday evening,
especially at elevations above 4000 feet.

CAZ295>297-140845-
/O.CON.KHNX.FW.W.0006.000000T0000Z-171216T0400Z/
Kern County Mountains-
Sierra Nevada from Yosemite to Kings Canyon National Park-
Tulare County Mountains-
432 PM PST Wed Dec 13 2017

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 8 PM PST FRIDAY FOR
LOW HUMIDITIES FOR FIRE WEATHER ZONES 295, 296, AND 297...

* AFFECTED AREA...Fire weather zones 295, 296 and 297. This
  includes Sierra National Forest, Sequoia/Kings Canyon National
  Park, Sequoia National Forest and the Kern County Mountains.

* WIND...Northeast to east 7-10 mph. Locally higher gusts up to 15
  mph will be possible this evening.

* HUMIDITY...Less than 10 percent at many locations. Humidity
  will remain low through Friday evening.

* IMPACTS...Any fires that develop will likely spread rapidly.
  Outdoor burning is not recommended.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. A combination of
strong winds, low relative humidity, and warm temperatures can
contribute to extreme fire behavior.

&&

$$

Andersen

URGENT - FIRE WEATHER MESSAGE
National Weather Service San Diego CA
1244 PM PST Wed Dec 13 2017

CAZ248-250-255>258-265-554-140600-
/O.CON.KSGX.FW.W.0006.171214T1200Z-171215T1800Z/
San Bernardino and Riverside County Valleys - The Inland Empire-
San Diego County Inland Valleys-San Bernardino County Mountains-
Including The Mountain Top And Front Country Ranger Districts Of
The San Bernardino National Forest-Riverside County Mountains-
Including The San Jacinto Ranger District Of The San Bernardino
National Forest-Santa Ana Mountains-
Including The Trabuco Ranger District of the Cleveland National
Forest-San Diego County Mountains-
Including The Palomar And Descanso Ranger Districts of the
Cleveland National Forest-San Gorgonio Pass Near Banning-
Orange County Inland Areas-
1244 PM PST Wed Dec 13 2017

...RED FLAG WARNING REMAINS IN EFFECT FROM 4 AM THURSDAY TO 10 AM
PST FRIDAY FOR STRONG GUSTY WINDS AND LOW HUMIDITY...

* WIND...Northeast to east winds 20 to 30 mph with gusts to 50
  mph. Isolated gusts to 65 mph.

* HUMIDITY...Minimum relative humidity 5 to 8 percent with very
  poor overnight recovery.

* TIMING...Winds increasing Thursday morning, and peaking in
  the afternoon. Winds gradually becoming less widespread
  Thursday evening and decreasing Friday morning.

* OUTLOOK...Another period of critical fire weather conditions
  could occur Sunday into early Monday due to another increase
  in Santa Ana winds and low humidity.

* FIRE WEATHER IMPACTS...Any fires that develop will likely
  spread rapidly and be difficult to contain. Outdoor burning
  should be avoided.

* WIND IMPACTS...Hazardous driving conditions for high profile
  vehicles. Specific freeways that may be impacted include
  interstates 10, 215, 15 and 8. Blowing dust or sand may locally
  reduce visibility to 1 mile. Debris on roadways and falling tree
  branches possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now....or will shortly. A combination of
strong winds...low relative humidity...and warm temperatures can
contribute to extreme fire behavior.

&&

$$

Harrison

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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