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URGENT - FIRE WEATHER MESSAGE
National Weather Service San Diego CA
135 PM PST Mon Jan 20 2025

CAZ250-255>258-265-210630-
/O.NEW.KSGX.FW.A.0005.250123T0200Z-250124T0200Z/
/O.CON.KSGX.FW.W.0003.000000T0000Z-250122T0600Z/
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-
135 PM PST Mon Jan 20 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 PM PST TUESDAY FOR
STRONG GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR ALL MOUNTAINS AND
THE SAN DIEGO COUNTY VALLEYS...

...FIRE WEATHER WATCH NOW IN EFFECT FROM WEDNESDAY EVENING
THROUGH THURSDAY AFTERNOON FOR STRONG GUSTY WINDS AND LOW RELATIVE
HUMIDITY FOR ALL MOUNTAINS AND THE SAN DIEGO COUNTY VALLEYS...

The National Weather Service in San Diego has issued a Fire
Weather Watch for strong gusty winds and low relative humidity,
which is in effect from Wednesday evening through Thursday
afternoon.

* RED FLAG WARNING WINDS...Northeast 25 to 35 mph with gusts up to
  60 mph. Isolated gusts in excess of 80 mph on the favored
  coastal slopes and canyons.

* FIRE WEATHER WATCH WINDS...Northeast 20 to 30 with gusts up to
  55 mph, highest winds on Thursday morning and afternoon.

* RELATIVE HUMIDITY...As low as 4 percent Tuesday and Thursday.

* IMPACTS...If fire ignition occurs, conditions are favorable
  for rapid fire spread and extreme fire behavior.

* LOCATION...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 and San Gorgonio Pass Near Banning.

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.

A Fire Weather Watch means that critical fire weather conditions
are forecast to occur. Listen for later forecasts and possible
Red Flag Warnings.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
957 AM PST Mon Jan 20 2025

***THIS IS A PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG
  WARNING FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
  COUNTIES!***

***POWERFUL DAMAGING WINDS EXPECTED!***

...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG WARNING IN
EFFECT NOON TODAY UNTIL 10 AM TUESDAY DUE TO DAMAGING SANTA ANA
WINDS AND VERY LOW HUMIDITIES FOR THE FOLLOWING AREAS: SANTA
CLARITA VALLEY / VENTURA COUNTY BEACHES / VENTURA COUNTY INLAND
COAST / CENTRAL VENTURA COUNTY VALLEYS / MALIBU COAST FOR MALIBU
AND POINTS WEST / WESTERN SANTA MONICA MOUNTAINS / CALABASAS AND
AGOURA HILLS / WESTERN SAN FERNANDO VALLEY FOR RESEDA AND POINTS
NORTH / EASTERN SAN FERNANDO VALLEY FOR BURBANK AND POINTS NORTH /
SOUTHEASTERN VENTURA COUNTY VALLEYS / SANTA SUSANA MOUNTAINS /
VENTURA COUNTY MOUNTAINS / INTERSTATE 5 CORRIDOR / SAN GABRIEL
MOUNTAINS AND HIGHWAY 14 CORRIDOR / SAN GABRIEL VALLEY ALONG AND
NORTH OF HIGHWAY 210 INCLUDING ALTADENA AND GLENDORA -- AND RED
FLAG WARNING DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES FOR
ALL OTHER TIMES 8 AM MONDAY UNTIL 10 PM TUESDAY IN THESE SAME
AREAS AND ALSO FOR REMAINING PORTIONS OF THESE ZONES OUTSIDE OF
THE PDS-DESIGNATED AREAS...

...RED FLAG WARNING IN EFFECT UNTIL 2 PM PST TUESDAY FOR STRONG
SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR EASTERN SANTA MONICA
MOUNTAINS / CATALINA AND SANTA BARBARA ISLANDS / PALOS VERDES
HILLS / ANTELOPE VALLEY FOOTHILLS / SAN MIGUEL AND SANTA ROSE
ISLANDS / SANTA CRUZ AND ANACAPA ISLANDS...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH THURSDAY EVENING FOR GUSTY SANTA ANA WINDS AND VERY LOW
RELATIVE HUMIDITY FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
COUNTIES...

.Very strong Santa Ana winds are developing today and peaking
this afternoon into Tuesday morning. Humidities will drastically
lower to the single digits. Along with the extremely dry fuels,
this will create Extremely Critical fire-weather conditions and
rapid fire spread with any fires. Thereafter, with dry conditions
lasting through at least Thursday, and additional rounds of
enhanced offshore flow likely Wednesday night through Thursday.
For this reason a Fire Weather Watch is in effect Tuesday night
through Thursday.

CAZ288-354-355-358-362-369-371>380-211730-
/O.CON.KLOX.FW.W.0003.000000T0000Z-250122T0600Z/
/O.CON.KLOX.FW.A.0004.250122T0600Z-250124T0600Z/
Santa Clarita Valley-Ventura County Beaches-
Ventura County Inland Coast-Central Ventura County Valleys-
Malibu Coast-Western Santa Monica Mountains Recreational Area-
Calabasas and Agoura Hills-Western San Fernando Valley-
Eastern San Fernando Valley-Southeastern Ventura County Valleys-
Santa Susana Mountains-Southern Ventura County Mountains-
Northern Ventura County Mountains-Interstate 5 Corridor-
Western San Gabriel Mountains and Highway 14 Corridor-
Eastern San Gabriel Mountains-
957 AM PST Mon Jan 20 2025

***THIS IS A PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG
  WARNING FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
  COUNTIES!***

***POWERFUL DAMAGING WINDS EXPECTED!***

...PARTICULARLY DANGEROUS SITUATION (PDS) RED  LAG WARNING IN EFFECT
NOON MONDAY UNTIL 10 AM TUESDAY DUE TO DAMAGING SANTA ANA WINDS AND VERY
LOW HUMIDITIES FOR THE FOLLOWING AREAS: SANTA CLARITA VALLEY / VENTURA
COUNTY BEACHES / VENTURA COUNTY INLAND COAST / CENTRAL VENTURA COUNTY
VALLEYS / MALIBU COAST FOR MALIBU AND POINTS WEST / WESTERN SANTA MONICA
MOUNTAINS / CALABASAS AND AGOURA HILLS / WESTERN SAN FERNANDO VALLEY
FOR RESEDA AND POINTS NORTH / EASTERN SAN FERNANDO VALLEY FOR BURBANK
AND POINTS NORTH / SOUTHEASTERN VENTURA COUNTY VALLEYS / SANTA SUSANA
MOUNTAINS / VENTURA COUNTY MOUNTAINS / INTERSTATE 5 CORRIDOR / SAN
GABRIEL MOUNTAINS AND HIGHWAY 14 CORRIDOR / SAN GABRIEL VALLEY ALONG AND
NORTH OF HIGHWAY 210 INCLUDING ALTADENA AND GLENDORA -- AND RED FLAG
WARNING DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES FOR ALL OTHER
TIMES UNTIL 10 PM TUESDAY IN THESE SAME AREAS AND ALSO FOR REMAINING
PORTIONS OF THESE ZONES OUTSIDE OF THE PDS-DESIGNATED AREAS...

...RED FLAG WARNING IN EFFECT UNTIL 2 PM PST TUESDAY FOR STRONG SANTA
ANA WINDS AND LOW RELATIVE HUMIDITY FOR EASTERN SANTA MONICA MOUNTAINS /
CATALINA AND SANTA BARBARA ISLANDS / PALOS VERDES HILLS / ANTELOPE
VALLEY FOOTHILLS / SAN MIGUEL AND SANTA ROSE ISLANDS / SANTA CRUZ AND
ANACAPA ISLANDS...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY EVENING THROUGH
THURSDAY EVENING FOR GUSTY SANTA ANA WINDS AND VERY LOW RELATIVE
HUMIDITY FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
COUNTIES...

* WINDS...For the PDS RED FLAG WARNING -- ***POWERFUL DAMAGING
  WINDS EXPECTED!*** For the mountains and foothills, northeast
  winds increasing to 35 to 50 mph with widespread damaging gusts
  of 60 to 80 mph expected. Isolated gusts 80 to 100 mph expected
  in most wind-prone mountain locations, such as the San Gabriels,
  Santa Susanas, western Santa Monicas, and southern Ventura
  mountains adjacent to the Highway 126 corridor. For the coasts
  and valleys, northeast to east winds increasing to 25 to 40 mph
  with damaging gusts of 50 to 70 mph, strongest along the Highway
  118, 126, and 210 corridors.

* RELATIVE HUMIDITY...Daily minimums of 5 to 15 percent with
  very poor overnight recoveries.

* IMPACTS...If fire ignition occurs, conditions are favorable
  for extreme fire behavior and rapid fire growth, which would
  threaten life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Use extreme caution
with anything that can spark a wildfire. Residents near wildland
interfaces should be prepared to evacuate if a wildfire breaks
out. See readyforwildfire.org and wildfirerisk.org for
information.

A Fire Weather Watch means that critical fire weather conditions
are likely to occur in the coming days. Residents near wildland
interfaces should prepare now on what to do if a wildfire breaks
out. See readyforwildfire.org and wildfirerisk.org for
information.

&&

$$

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
957 AM PST Mon Jan 20 2025

***THIS IS A PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG
  WARNING FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
  COUNTIES!***

***POWERFUL DAMAGING WINDS EXPECTED!***

...PARTICULARLY DANGEROUS SITUATION (PDS) RED FLAG WARNING IN
EFFECT NOON TODAY UNTIL 10 AM TUESDAY DUE TO DAMAGING SANTA ANA
WINDS AND VERY LOW HUMIDITIES FOR THE FOLLOWING AREAS: SANTA
CLARITA VALLEY / VENTURA COUNTY BEACHES / VENTURA COUNTY INLAND
COAST / CENTRAL VENTURA COUNTY VALLEYS / MALIBU COAST FOR MALIBU
AND POINTS WEST / WESTERN SANTA MONICA MOUNTAINS / CALABASAS AND
AGOURA HILLS / WESTERN SAN FERNANDO VALLEY FOR RESEDA AND POINTS
NORTH / EASTERN SAN FERNANDO VALLEY FOR BURBANK AND POINTS NORTH /
SOUTHEASTERN VENTURA COUNTY VALLEYS / SANTA SUSANA MOUNTAINS /
VENTURA COUNTY MOUNTAINS / INTERSTATE 5 CORRIDOR / SAN GABRIEL
MOUNTAINS AND HIGHWAY 14 CORRIDOR / SAN GABRIEL VALLEY ALONG AND
NORTH OF HIGHWAY 210 INCLUDING ALTADENA AND GLENDORA -- AND RED
FLAG WARNING DUE TO STRONG SANTA ANA WINDS AND LOW HUMIDITIES FOR
ALL OTHER TIMES 8 AM MONDAY UNTIL 10 PM TUESDAY IN THESE SAME
AREAS AND ALSO FOR REMAINING PORTIONS OF THESE ZONES OUTSIDE OF
THE PDS-DESIGNATED AREAS...

...RED FLAG WARNING IN EFFECT UNTIL 2 PM PST TUESDAY FOR STRONG
SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR EASTERN SANTA MONICA
MOUNTAINS / CATALINA AND SANTA BARBARA ISLANDS / PALOS VERDES
HILLS / ANTELOPE VALLEY FOOTHILLS / SAN MIGUEL AND SANTA ROSE
ISLANDS / SANTA CRUZ AND ANACAPA ISLANDS...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH THURSDAY EVENING FOR GUSTY SANTA ANA WINDS AND VERY LOW
RELATIVE HUMIDITY FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
COUNTIES...

.Very strong Santa Ana winds are developing today and peaking
this afternoon into Tuesday morning. Humidities will drastically
lower to the single digits. Along with the extremely dry fuels,
this will create Extremely Critical fire-weather conditions and
rapid fire spread with any fires. Thereafter, with dry conditions
lasting through at least Thursday, and additional rounds of
enhanced offshore flow likely Wednesday night through Thursday.
For this reason a Fire Weather Watch is in effect Tuesday night
through Thursday.

CAZ370-211730-
/O.CON.KLOX.FW.W.0003.000000T0000Z-250121T2200Z/
/O.CON.KLOX.FW.A.0004.250122T0600Z-250124T0600Z/
Eastern Santa Monica Mountains Recreational Area-
957 AM PST Mon Jan 20 2025

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 2 PM PST TUESDAY FOR
STRONG SANTA ANA WINDS AND LOW RELATIVE HUMIDITY FOR THE EASTERN
SANTA MONICA MOUNTAINS...

...FIRE WEATHER WATCH REMAINS IN EFFECT FROM TUESDAY EVENING
THROUGH THURSDAY EVENING FOR GUSTY SANTA ANA WINDS AND VERY LOW
RELATIVE HUMIDITY FOR A LARGE PORTION OF LOS ANGELES AND VENTURA
COUNTIES...

* WINDS...For the RED FLAG WARNING  -Northeast winds 25 to 35
  mph with gusts up to 45 to 55 mph expected Monday through
  Tuesday afternoon.

* RELATIVE HUMIDITY...Daily minimums of 5 to 15 percent with
  very poor overnight recoveries.

* IMPACTS...If fire ignition occurs, conditions are favorable
  for extreme fire behavior and rapid fire growth, which would
  threaten life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are either occurring now, or will shortly. Use extreme caution
with anything that can spark a wildfire. Residents near wildland
interfaces should be prepared to evacuate if a wildfire breaks
out. See readyforwildfire.org and wildfirerisk.org for
information.

A Fire Weather Watch means that critical fire weather conditions
are likely to occur in the coming days. Residents near wildland
interfaces should prepare now on what to do if a wildfire breaks
out. See readyforwildfire.org and wildfirerisk.org for
information.

&&

$$

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
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE