Alert archive / California / Red Flag Warnings in 2018

Red Flag Warning 5, NWS Los Angeles, CA

July 5, 2018Los Angeles County, California

NWS Los Angeles, CA issued this red flag warning at Jul 5, 2018, 9:50 AM PDT for Los Angeles County, California. It took effect at Jul 6, 2018, 3:00 AM PDT. It was in force for 39 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jul 5, 2018, 9:50 AM PDT (16:50 UTC)
In effect from
Jul 6, 2018, 3:00 AM PDT
Expired
Jul 7, 2018, 6:00 PM PDT
In force
39 hr
Issued by
NWS Los Angeles, CA

County Los Angeles County, CA

The radar

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 16:55 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

San Diego, CA (KNKX), launched 12:00Z, 4.8 hours before the alert went out and 184 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, San Diego, CA at 12:00Z on 2018-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2018-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1794 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
64 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

275 
WWUS86 KLOX 051650
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
950 AM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT LATE TONIGHT INTO SATURDAY FOR 
PORTIONS OF SOUTHWEST CALIFORNIA DUE TO GUSTY NORTH WINDS, HOT 
TEMPERATURES, AND VERY LOW HUMIDITIES...

.A significant heat wave is expected to affect Southwest
California through Sunday. The peak of the heat wave will be 
Friday and Saturday when widespread record breaking triple digit 
heat is expected. The extreme heat in combination with single 
digit humidities and gusty north winds will likely bring critical 
fire weather conditions across the mountains, Santa Barbara south 
coast, Santa Clarita Valley, San Fernando Valley, and Santa Monica
mountains. The strongest north winds for these areas are expected
to occur Friday morning through Saturday morning. In addition, 
the extreme heat will create an unstable air mass that will be 
capable of producing large vertical plume growth with any new fire
ignitions, especially in the mountains and foothills.

CAZ253-254-060000-
/O.UPG.KLOX.FW.A.0004.180706T1000Z-180708T0100Z/
/O.NEW.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
950 AM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 PM PDT
SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW 
RELATIVE HUMIDITY FOR THE MOUNTAINS OF LOS ANGELES AND VENTURA 
COUNTIES...

The National Weather Service in Los Angeles/Oxnard has issued a
Red Flag Warning for gusty north winds, hot temperatures, and
low relative humidity, which is in effect from 3 AM Friday to 6 
PM PDT Saturday. The Fire Weather Watch is no longer in effect.

* Winds...Areas of north winds 20 to 30 mph with gusts to 45 mph,
  strongest through the Interstate 5 corridor. Peak winds 
  expected Friday morning into Saturday morning.

* Relative Humidity...Minimum humidities 3 to 10 percent on 
  Friday, increasing to 7 to 15 percent on Saturday. Very poor 
  humidity recovery tonight and Friday night.

* Temperatures...Highs 95 to 107 degrees across lower elevations 
  on Friday and Saturday. Lows Friday night in the 80s across 
  the foothills and lower mountains.

* Thunderstorms...There is a slight chance of thunderstorms with 
  isolated dry lightning strikes across the eastern San Gabriels 
  late Saturday afternoon. Any storms that develop will be 
  capable of producing gusty and erratic winds.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions 
are expected. A combination of strong winds, hot temperatures, 
very low relative humidity and dry fuels could contribute to 
extreme fire danger and/or fire behavior. Use extreme caution with
potential ignition sources.

&&

$$

CAZ246-288-060000-
/O.UPG.KLOX.FW.A.0004.180706T1000Z-180708T0100Z/
/O.NEW.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
950 AM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 PM PDT
SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW 
RELATIVE HUMIDITY FOR THE SANTA MONICA MOUNTAINS AND SANTA CLARITA
VALLEY...

The National Weather Service in Los Angeles/Oxnard has issued a
Red Flag Warning for gusty north winds, hot temperatures, and
low relative humidity, which is in effect from 3 AM Friday to 6 
PM PDT Saturday. The Fire Weather Watch is no longer in effect.

* Winds...Areas of north winds 15 to 25 mph with gusts to 35 
  mph. Peak winds expected Friday morning into Saturday morning.

* Relative Humidity...Minimum humidities 3 to 6 percent on 
  Friday rising to 7 to 12 percent on Saturday. Very poor 
  humidity recovery Friday night.

* Temperatures...Highs 101 to 111 degrees on Friday, 98 to 108 on
  Saturday. Lows Friday night 75 to 88.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions 
are expected. A combination of strong winds, hot temperatures, 
very low relative humidity and dry fuels could contribute to 
extreme fire danger and/or fire behavior. Use extreme caution with
potential ignition sources.

&&

$$

CAZ252-060000-
/O.UPG.KLOX.FW.A.0004.180706T1000Z-180708T0100Z/
/O.NEW.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Santa Barbara County Mountains-
950 AM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 PM PDT
SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW 
RELATIVE HUMIDITY FOR THE SANTA BARBARA COUNTY MOUNTAINS...

The National Weather Service in Los Angeles/Oxnard has issued a
Red Flag Warning for gusty north winds, hot temperatures, and
low relative humidity, which is in effect from 3 AM Friday to 6 
PM PDT Saturday. The Fire Weather Watch is no longer in effect.

* Winds...Areas of north to northeast winds 20 to 30 mph with 
  gusts to 45 mph, strongest through the Santa Ynez Range, 
  especially near Montecito Hills. Peak winds expected Friday 
  morning into Saturday morning.

* Relative Humidity...Minimum humidities 5 to 10 percent on 
  Friday and Saturday. Very poor humidity recovery Friday night.

* Temperatures...Highs 98 to 106 degrees across lower elevations
  on Friday and Saturday. Lows Friday night 78 to 88 across the 
  foothills and lower mountains.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions 
are expected. A combination of strong winds, hot temperatures, 
very low relative humidity and dry fuels could contribute to 
extreme fire danger and/or fire behavior. Use extreme caution with
potential ignition sources.

&&

$$

CAZ239-060000-
/O.UPG.KLOX.FW.A.0004.180706T2100Z-180707T1700Z/
/O.NEW.KLOX.FW.W.0005.180706T2100Z-180707T1700Z/
Santa Barbara County South Coast-
950 AM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT FROM 2 PM FRIDAY TO 10 AM PDT
SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND LOW 
RELATIVE HUMIDITY FOR THE SANTA BARBARA SOUTH COAST...

The National Weather Service in Los Angeles/Oxnard has issued a
Red Flag Warning for gusty north winds, hot temperatures,
and very low relative humidity, which is in effect from 2 PM 
Friday to 10 AM PDT Saturday. The Fire Weather Watch is no longer 
in effect.

* Winds...Areas of northwest to north winds 15 to 30 mph with
  gusts to 45 mph, strongest in the foothills, especially above 
  Montecito.

* Relative Humidity...Minimum humidities 5 to 10 percent, rising 
  slightly on Saturday. Very poor humidity recovery Friday night 
  in the foothills and windy areas.

* Temperatures...Highs 94 to 103 degrees on Friday, slightly
  cooler on Saturday. Lows Friday night 79 to 89 across the 
  foothills and wind prone areas.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions 
are expected. A combination of strong winds, hot temperatures, 
very low relative humidity and dry fuels could contribute to 
extreme fire danger and/or fire behavior. Use extreme caution with
potential ignition sources.


&&

$$

CAZ547-060000-
/O.NEW.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Los Angeles County San Fernando Valley-
950 AM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT FROM 3 AM FRIDAY TO 6 PM PDT
SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW 
RELATIVE HUMIDITY FOR THE SAN FERNANDO VALLEY...

The National Weather Service in Los Angeles/Oxnard has issued a
Red Flag Warning for gusty north winds, hot temperatures, and
low relative humidity, which is in effect from 3 AM Friday to 6 
PM PDT Saturday. The Fire Weather Watch is no longer in effect.

* Winds...Areas of north winds 10 to 20 mph with gusts to 30 mph.
  Peak winds expected Friday morning into Saturday morning.

* Relative Humidity...Minimum humidities 3 to 6 percent on 
  Friday rising to 7 to 12 percent on Saturday. Very poor 
  humidity recovery Friday night.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions 
are expected. A combination of strong winds, hot temperatures, 
very low relative humidity and dry fuels could contribute to 
extreme fire danger and/or fire behavior. Use extreme caution with
potential ignition sources.

&&

$$

Gomberg
6 follow-up statements
504 
WWUS86 KLOX 052247
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
347 PM PDT Thu Jul 5 2018

...RED FLAG WARNING IN EFFECT LATE TONIGHT INTO SATURDAY FOR
PORTIONS OF SOUTHWEST CALIFORNIA DUE TO GUSTY NORTH WINDS, HOT
TEMPERATURES, AND VERY LOW HUMIDITIES...

.A significant heat wave will affect Southwest California through
Sunday. The peak of the heat wave will be Friday and Saturday 
when widespread record breaking triple digit heat is expected. The
extreme heat in combination with single digit humidities and 
gusty north winds will likely bring critical fire weather 
conditions across the mountains, Santa Barbara south coast, Santa 
Clarita Valley, San Fernando Valley, and Santa Monica mountains. 
The strongest north winds for these areas are expected to occur 
Friday morning through Saturday morning where gusts between
35 and 45 mph will be common, with isolated gusts up to 50 mph
in favored mountain locations. In addition, the extreme heat will
create an unstable air mass that will be capable of producing 
large vertical plume growth with any new fire ignitions, 
especially in the mountains and foothills. Red Flag conditions
mean that there is the potential for rapid fire growth and 
extreme fire behavior. Brief critical fire weather conditions are
also possible for the Ventura county valleys and Central Coast.

CAZ253-254-061800-
/O.CON.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
347 PM PDT Thu Jul 5 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 6 PM
PDT SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY
LOW RELATIVE HUMIDITY FOR THE MOUNTAINS OF LOS ANGELES AND
VENTURA COUNTIES...

* Winds...Areas of north winds 20 to 30 mph with gusts to 45 mph
  except isolated gusts up to 50 mph near Whitaker Peak. Strongest
  winds through the Interstate 5 corridor. Peak winds expected 
  Friday morning into Saturday morning.

* Relative Humidity...Minimum humidities 2 to 8 percent on 
  Friday, increasing to 7 to 15 percent on Saturday. Very poor 
  humidity recovery tonight and Friday night.

* Temperatures...Highs 97 to 107 degrees across lower elevations 
  on Friday and Saturday. Lows Friday night in the 80s across the 
  foothills and lower mountains.

* Thunderstorms...There is a slight chance of thunderstorms with 
  isolated dry lightning strikes across the eastern San Gabriels 
  late Saturday afternoon. Any storms that develop will be 
  capable of producing gusty and erratic winds.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ246-288-061800-
/O.CON.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
347 PM PDT Thu Jul 5 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 6 PM
PDT SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY
LOW RELATIVE HUMIDITY FOR THE SANTA MONICA MOUNTAINS AND SANTA
CLARITA VALLEY...

* Winds...Areas of north winds 15 to 25 mph with gusts to 35 mph
  except isolated gusts over 40 mph across the Santa Monica
  mountains. Peak winds expected Friday morning into Saturday 
  morning.

* Relative Humidity...Minimum humidities 2 to 6 percent on Friday
  rising to 7 to 12 percent on Saturday. Very poor humidity 
  recovery Friday night.

* Temperatures...Highs 102 to 112 degrees on Friday, 98 to 108 on
  Saturday. Lows Friday night 75 to 88.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ547-061800-
/O.CON.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Los Angeles County San Fernando Valley-
347 PM PDT Thu Jul 5 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 6 PM
PDT SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY
LOW RELATIVE HUMIDITY FOR THE SAN FERNANDO VALLEY...

* Winds...Areas of north winds 10 to 20 mph with gusts to 30 
  mph. Peak winds expected Friday morning into Saturday morning.

* Relative Humidity...Minimum humidities 2 to 6 percent on Friday
  rising to 7 to 12 percent on Saturday. Very poor humidity 
  recovery Friday night.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ252-061800-
/O.CON.KLOX.FW.W.0005.180706T1000Z-180708T0100Z/
Santa Barbara County Mountains-
347 PM PDT Thu Jul 5 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 3 AM FRIDAY TO 6 PM
PDT SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY
LOW RELATIVE HUMIDITY FOR THE SANTA BARBARA COUNTY MOUNTAINS...

* Winds...Areas of north to northeast winds 20 to 30 mph with
  gusts to 45 mph, except isolated gusts to 50 mph in the hills
  above Gaviota and Montecito. Strongest winds through the Santa
  Ynez Range. Peak winds expected Friday morning into Saturday 
  morning.

* Relative Humidity...Minimum humidities 5 to 10 percent on 
  Friday and Saturday. Very poor humidity recovery Friday night.

* Temperatures...Highs 98 to 106 degrees across lower elevations 
  on Friday and Saturday. Lows Friday night 78 to 88 across the 
  foothills and lower mountains.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ239-061800-
/O.CON.KLOX.FW.W.0005.180706T2100Z-180707T1700Z/
Santa Barbara County South Coast-
347 PM PDT Thu Jul 5 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM FRIDAY TO 10 AM
PDT SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND LOW
RELATIVE HUMIDITY FOR THE SANTA BARBARA SOUTH COAST...

* Winds...Areas of northwest to north winds 15 to 30 mph with
  gusts to 45 mph, except isolated gusts to 50 mph in the 
  foothills, especially above Gaviota and Montecito.

* Relative Humidity...Minimum humidities 5 to 10 percent, rising 
  slightly on Saturday. Very poor humidity recovery Friday night 
  in the foothills and windy areas.

* Temperatures...Highs 95 to 105 degrees on Friday, slightly 
  cooler on Saturday. Lows Friday night 79 to 89 across the 
  foothills and wind prone areas.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and large vertical plume growth that would 
  lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

Gomberg
001 
WWUS86 KLOX 061711
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1011 AM PDT Fri Jul 6 2018

...RED FLAG WARNING IN EFFECT THROUGH SATURDAY FOR PORTIONS OF 
SOUTHWEST CALIFORNIA DUE TO GUSTY NORTH WINDS, HOT TEMPERATURES, 
AND VERY LOW HUMIDITIES...

.A significant heat wave will affect Southwest California through
Sunday. The peak of the heat wave will be today into Saturday 
when widespread record breaking triple digit heat is expected. The
extreme record breaking heat in combination with single digit 
humidities and gusty north winds will continue to bring very critical
fire weather conditions across the mountains, Santa Barbara south
coast, Santa Clarita Valley, San Fernando Valley, and Santa 
Monica mountains. The strongest north winds for these areas are 
expected to occur through Saturday morning where gusts between 35 
and 45 mph will be common, with isolated gusts up to 50 mph in 
favored mountain locations. In addition, the extreme heat will 
create an unstable air mass that will be capable of producing very
large vertical plume growth with any new fire ignitions, 
especially in the mountains and foothills. Red Flag conditions 
mean that there is the potential for rapid fire growth and extreme
fire behavior. Brief critical fire weather conditions are also 
possible for the Ventura county valleys, other portions of Los 
Angeles county (including the coastal plain), and Central Coast.

CAZ253-254-070000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
1011 AM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...

* Winds...Areas of north winds 20 to 30 mph with gusts to 45 mph
  except isolated gusts up to 50 mph near Whitaker Peak. Strongest
  winds through the Interstate 5 corridor. Peak winds expected
  through Saturday morning.

* Relative Humidity...Minimum humidities 2 to 8 percent today,
  increasing to 7 to 15 percent on Saturday. Very poor humidity
  recovery tonight.

* Temperatures...Highs 99 to 109 degrees across lower elevations 
  today, with slight cooling on Saturday. Lows tonight in the 80s 
  to around 90 across the foothills and lower mountains.

* Thunderstorms...There is a slight chance of thunderstorms with 
  isolated dry lightning strikes across the eastern San Gabriels 
  late Saturday afternoon. Any storms that develop will be 
  capable of producing gusty and erratic winds.

* Impacts...If fire ignition occurs, there could be rapid wildfire
  spread and very large vertical plume growth that would lead to 
  a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ246-288-070000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
1011 AM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE SANTA MONICA MOUNTAINS AND SANTA CLARITA
VALLEY...

* Winds...Areas of north winds 15 to 30 mph with gusts to 40 mph.
  Peak winds expected through Saturday morning.

* Relative Humidity...Minimum humidities 2 to 6 percent today
  rising to 7 to 12 percent on Saturday. Very poor humidity
  recovery tonight.

* Temperatures...Highs 106 to 116 degrees today, 98 to 108 on
  Saturday. Lows 78 to 90.

* Impacts...If fire ignition occurs, there could be rapid wildfire
  spread and very large vertical plume growth that would lead to 
  a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ547-070000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Los Angeles County San Fernando Valley-
1011 AM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE SAN FERNANDO VALLEY...

* Winds...Areas of north winds 10 to 20 mph with gusts to 30 mph.
  Peak winds expected through Saturday morning.

* Relative Humidity...Minimum humidities 2 to 6 percent today
  rising to 7 to 12 percent on Saturday. Very poor humidity
  recovery tonight.

* Impacts...If fire ignition occurs, there could be rapid wildfire
  spread and very large vertical plume growth that would lead to 
  a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ252-070000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Barbara County Mountains-
1011 AM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE SANTA BARBARA COUNTY MOUNTAINS...

* Winds...Areas of north to northeast winds 20 to 30 mph with
  gusts to 45 mph, except isolated gusts to 50 mph in the hills
  above Gaviota and Montecito. Strongest winds through the Santa
  Ynez Range. Peak winds expected through Saturday morning.

* Relative Humidity...Minimum humidities 5 to 10 percent today and
  Saturday. Very poor humidity recovery tonight.

* Temperatures...Highs 98 to 108 degrees across lower elevations
  today then slight cooling on Saturday. Lows tonight 80 to 90 
  across the foothills and lower mountains.

* Impacts...If fire ignition occurs, there could be rapid wildfire
  spread and very large vertical plume growth that would lead to 
  a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ239-070000-
/O.CON.KLOX.FW.W.0005.180706T2100Z-180707T1700Z/
Santa Barbara County South Coast-
1011 AM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
10 AM PDT SATURDAY FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND
LOW RELATIVE HUMIDITY FOR THE SANTA BARBARA SOUTH COAST...

* Winds...Areas of northwest to north winds 15 to 30 mph with 
  gusts to 45 mph, except isolated gusts to 50 mph in the 
  foothills, especially above Gaviota and Montecito.

* Relative Humidity...Minimum humidities 5 to 15 percent today, 
  rising slightly on Saturday. Very poor humidity recovery tonight
  in the foothills and windy areas.

* Temperatures...Highs 97 to 107 degrees today, slightly cooler on
  Saturday. Lows tonight 80 to 90 across the foothills and wind 
  prone areas.

* Impacts...If fire ignition occurs, there could be rapid wildfire
  spread and very large vertical plume growth that would lead to 
  a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

Gomberg
749 
WWUS86 KLOX 062244
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
344 PM PDT Fri Jul 6 2018

...RED FLAG WARNING IN EFFECT THROUGH SATURDAY FOR PORTIONS OF
SOUTHWEST CALIFORNIA DUE TO GUSTY NORTH WINDS, HOT TEMPERATURES,
AND VERY LOW HUMIDITIES...

.A significant heat wave will affect Southwest California through
Sunday. The peak of the heat wave will be today into Saturday
when widespread record breaking triple digit heat is expected.
The extreme record breaking heat in combination with single digit
humidities and gusty north winds will continue to bring extremely 
critical fire weather conditions across the mountains, Santa 
Barbara south coast, Santa Clarita Valley, San Fernando Valley, 
and Santa Monica mountains. The strongest north winds for these 
areas are expected to occur through Saturday morning where gusts 
between 35 and 45 mph will be common, with isolated gusts up to 50
mph in favored mountain locations. In addition, the extreme heat 
will create an unstable air mass that will be capable of producing
very large vertical plume growth with any new fire ignitions, 
especially in the mountains and foothills. Red Flag conditions 
mean that there is the potential for rapid fire growth and extreme
fire behavior. Brief critical fire weather conditions are also 
possible for the Ventura county valleys, other portions of Los 
Angeles county (including the coastal plain), and Central Coast.

CAZ253-254-071730-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
344 PM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...

* Winds...Areas of north winds 20 to 30 mph with gusts to 45 mph 
  except isolated gusts up to 50 mph near Whitaker Peak. 
  Strongest winds through the Interstate 5 corridor. Peak winds 
  expected through Saturday morning.

* Relative Humidity...Minimum humidities 2 to 8 percent today, 
  increasing to 7 to 15 percent on Saturday. Very poor humidity 
  recovery tonight.

* Temperatures...Highs 99 to 109 degrees across lower elevations 
  today, with slight cooling on Saturday. Lows tonight in the 
  80s to around 90 across the foothills and lower mountains.

* Thunderstorms...There is a slight chance of thunderstorms with 
  isolated dry lightning strikes across the eastern San Gabriels 
  late Saturday afternoon. Any storms that develop will be 
  capable of producing gusty and erratic winds.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ246-288-071730-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
344 PM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE SANTA MONICA MOUNTAINS AND SANTA CLARITA
VALLEY...

* Winds...Areas of north winds 15 to 30 mph with gusts to 40 
  mph. Peak winds expected through Saturday morning.

* Relative Humidity...Minimum humidities 2 to 6 percent today 
  rising to 7 to 12 percent on Saturday. Very poor humidity 
  recovery tonight.

* Temperatures...Highs 106 to 116 degrees today, 98 to 108 on 
  Saturday. Lows tonight 78 to 90.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ547-071730-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Los Angeles County San Fernando Valley-
344 PM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE SAN FERNANDO VALLEY...

* Winds...Areas of north winds 10 to 20 mph with gusts to 30 
  mph. Peak winds expected through Saturday morning.

* Relative Humidity...Minimum humidities 2 to 6 percent today 
  rising to 7 to 12 percent on Saturday. Very poor humidity 
  recovery tonight.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ252-071730-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Barbara County Mountains-
344 PM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT SATURDAY FOR
GUSTY NORTH WINDS, HOT TEMPERATURES, AND VERY LOW RELATIVE
HUMIDITY FOR THE SANTA BARBARA COUNTY MOUNTAINS...

* Winds...Areas of north to northeast winds 20 to 30 mph with 
  gusts to 45 mph, except isolated gusts to 50 mph in the hills 
  above Gaviota and Montecito. Strongest winds through the Santa 
  Ynez Range. Peak winds expected through Saturday morning.

* Relative Humidity...Minimum humidities 5 to 10 percent today 
  and Saturday. Very poor humidity recovery tonight.

* Temperatures...Highs 98 to 108 degrees across lower elevations 
  today then slight cooling on Saturday. Lows tonight 80 to 90 
  across the foothills and lower mountains.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ239-071700-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180707T1700Z/
Santa Barbara County South Coast-
344 PM PDT Fri Jul 6 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 10 AM PDT SATURDAY
FOR GUSTY NORTH WINDS, HOT TEMPERATURES, AND LOW RELATIVE
HUMIDITY FOR THE SANTA BARBARA SOUTH COAST...

* Winds...Areas of northwest to north winds 15 to 30 mph with 
  gusts to 45 mph, except isolated gusts to 50 mph in the 
  foothills, especially above Gaviota and Montecito.

* Relative Humidity...Minimum humidities 5 to 15 percent today, 
  rising slightly on Saturday. Very poor humidity recovery 
  tonight in the foothills and windy areas.

* Temperatures...Highs 97 to 107 degrees today, slightly cooler 
  on Saturday. Lows tonight 80 to 90 across the foothills and 
  wind prone areas.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

Gomberg
801 
WWUS86 KLOX 071715
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1015 AM PDT Sat Jul 7 2018

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY FOR PORTIONS OF 
SOUTHWEST CALIFORNIA DUE TO HOT TEMPERATURES, LOW HUMIDITIES,
AND GUSTY ONSHORE WINDS...

.Light offshore flow this morning will transition to onshore flow
today, with gusty onshore winds across much of the forecast area
this afternoon. The Santa Barbara south coast will see some
cooling and higher humidities today associated with the onshore
flow allowing the Red Flag Warning to expire, but foothill areas 
will remain very warm and dry with elevated fire weather 
conditions. Remaining Red Flag Warning areas will see continuation
of hot and dry conditions today, with onshore winds gusting 
between 20 and 30 mph in the afternoon hours. 

Due to the hot and unstable conditions expected today, there is the potential
for very large vertical plume growth with any new fires, especially
over the mountains and foothills. A surge of monsoon moisture 
will bring a thunderstorm threat to our south and east today, with
the leading edge of the mid level monsoon moisture and 
instability bringing a slight chance of thunderstorms to the 
eastern San Gabriels this afternoon and evening. If any 
thunderstorms were to develop, there would be the potential for 
isolated dry lightning strikes and gusty erratic surface winds. 


CAZ239-071815-
/O.EXP.KLOX.FW.W.0005.000000T0000Z-180707T1700Z/
Santa Barbara County South Coast-
1015 AM PDT Sat Jul 7 2018

...RED FLAG WARNING HAS EXPIRED FOR GUSTY NORTH WINDS, HOT
TEMPERATURES, AND LOW RELATIVE HUMIDITY FOR THE SANTA BARBARA
SOUTH COAST...

CRITICAL RED FLAG CONDITIONS HAVE ENDED ACROSS THE SANTA BARBARA
COUNTY SOUTH COAST, HOWEVER ELEVATED FIRE WEATHER CONDITIONS WILL
CONTINUE, ESPECIALLY IN THE FOOTHILLS, WHERE VERY WARM AND DRY
CONDITIONS PERSIST TODAY.


$$

CAZ253-254-080000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
1015 AM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TODAY FOR 
HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE WINDS 
FOR THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...

* Winds...Areas of south to southwest winds 10 to 20 mph with
  gusts to 30 mph in the afternoon.

* Relative Humidity...Minimum humidities 7 to 15 percent today. 

* Temperatures...Highs 95 to 105 degrees across lower elevations
  today.

* Thunderstorms...There is a slight chance of thunderstorms with
  isolated dry lightning strikes across the eastern San Gabriels
  late this afternoon and evening. Any storms that develop will 
  be capable of producing gusty and erratic winds.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ246-288-080000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
1015 AM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TODAY FOR 
HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE WINDS 
FOR THE SANTA MONICA MOUNTAINS AND SANTA CLARITA VALLEY...

* Winds...Areas of south winds 10 to 20 mph with gusts to 25 mph
  in the afternoon. 

* Relative Humidity...Minimum humidities 7 to 12 percent today.

* Temperatures...Highs 100 to 108 today. 

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ547-080000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Los Angeles County San Fernando Valley-
1015 AM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TODAY FOR 
HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE WINDS 
FOR THE SAN FERNANDO VALLEY...

* Winds...Areas of south winds 8 to 15 mph with gusts to 22 mph in
  the afternoon. 

* Relative Humidity...Minimum humidities 7 to 12 percent today.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ252-080000-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Barbara County Mountains-
1015 AM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT TODAY FOR 
HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE WINDS 
FOR THE SANTA BARBARA COUNTY MOUNTAINS...

* Winds...Areas of southeast to south winds 10 to 20 mph with
  gusts to 25 mph.

* Relative Humidity...Minimum humidities 7 to 12 percent today.

* Temperatures...Highs 95 to 105 degrees across lower elevations
  today.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

Gomberg
135 
WWUS86 KLOX 072241
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
341 PM PDT Sat Jul 7 2018

...RED FLAG WARNING IN EFFECT UNTIL 6 PM TODAY FOR PORTIONS OF
SOUTHWEST CALIFORNIA DUE TO HOT TEMPERATURES, LOW HUMIDITIES, AND
GUSTY ONSHORE WINDS...

.Light offshore flow this morning transitioned to onshore flow 
this afternoon, with gusty onshore winds across much of the 
forecast area. While there is some relief near the coast today, 
inland areas have remained hot and dry. Remaining Red Flag 
Warning areas will see onshore winds gusting between 20 and 30 
through the afternoon hours in combination with the hot and 
dry conditions. If any thunderstorms develop, there would be the 
potential for isolated dry lightning strikes and gusty erratic 
surface winds.

CAZ253-254-080100-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
341 PM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING
FOR HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE
WINDS FOR THE MOUNTAINS OF LOS ANGELES AND VENTURA COUNTIES...

* Winds...Areas of south to southwest winds 10 to 20 mph with 
  gusts to 30 mph in the afternoon.

* Relative Humidity...Minimum humidities 7 to 15 percent today.

* Temperatures...Highs 95 to 105 degrees across lower elevations 
  today.

* Thunderstorms...There is a slight chance of thunderstorms with 
  isolated dry lightning strikes across the eastern San Gabriels 
  late this afternoon and evening. Any storms that develop will 
  be capable of producing gusty and erratic winds.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ246-288-080100-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-Santa Clarita Valley-
341 PM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING
FOR HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE
WINDS FOR THE SANTA MONICA MOUNTAINS AND SANTA CLARITA VALLEY...

* Winds...Areas of south winds 10 to 20 mph with gusts to 25 mph 
  in the afternoon.

* Relative Humidity...Minimum humidities 7 to 12 percent today.

* Temperatures...Highs 100 to 112 today.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ547-080100-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Los Angeles County San Fernando Valley-
341 PM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING
FOR HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE
WINDS FOR THE SAN FERNANDO VALLEY...

* Winds...Areas of south winds 8 to 15 mph with gusts to 22 mph 
  in the afternoon.

* Relative Humidity...Minimum humidities 7 to 12 percent today.

* Temperatures...Highs 100 to 110 degrees today.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

CAZ252-080100-
/O.CON.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Barbara County Mountains-
341 PM PDT Sat Jul 7 2018

...RED FLAG WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS EVENING
FOR HOT TEMPERATURES, LOW RELATIVE HUMIDITY, AND GUSTY ONSHORE
WINDS FOR THE SANTA BARBARA COUNTY MOUNTAINS...

* Winds...Areas of southeast to south winds 10 to 20 mph with 
  gusts to 25 mph.

* Relative Humidity...Minimum humidities 7 to 12 percent today.

* Temperatures...Highs 95 to 105 degrees across lower elevations 
  today.

* Impacts...If fire ignition occurs, there could be rapid 
  wildfire spread and very large vertical plume growth that 
  would lead to a threat to life and property.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Red Flag Warning means that critical fire weather conditions
are expected. A combination of strong winds, hot temperatures,
very low relative humidity and dry fuels could contribute to
extreme fire danger and/or fire behavior. Use extreme caution
with potential ignition sources.

&&

$$

Gomberg
384 
WWUS86 KLOX 080100
RFWLOX

URGENT - FIRE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
600 PM PDT Sat Jul 7 2018

CAZ246-252>254-288-547-080200-
/O.EXP.KLOX.FW.W.0005.000000T0000Z-180708T0100Z/
Santa Monica Mountains Recreational Area-
Santa Barbara County Mountains-
Ventura County Mountains / Los Padres National Forest-
Los Angeles County Mountains / Angeles National Forest-
Santa Clarita Valley-Los Angeles County San Fernando Valley-
600 PM PDT Sat Jul 7 2018

...RED FLAG WARNING WILL EXPIRE AT 6 PM PDT THIS EVENING FOR HOT
TEMPERATURES...LOW RELATIVE HUMIDITY...AND GUSTY WINDS...

A very hot and critically dry air mass in place the last several 
days to continue to slowly moderate through early next week as a 
strong ridge of high pressure over the region weakens. Fire 
weather conditions will gradually improve as onshore flow 
redevelops this evening; however, elevated fire weather will 
linger into Monday. Warm and dry conditions will possibly 
combine with onshore sea breezes at times to bring brief critical
fire weather conditions into early next week. 

$$

Hall

What forecasters said that day

The local office's own words before this red flag warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Los Angeles, CA wrote its last area forecast discussion before this red flag warning went out at Jul 5, 5:11 AM PDT, 4 hours 39 minutes earlier.

Area forecast discussion, Jul 5, 5:11 AM PDT, 4 hours 39 minutes before
Area Forecast Discussion
National Weather Service Los Angeles/Oxnard CA
511 AM PDT Thu Jul 5 2018

New Aviation and Beaches Discussion

.SYNOPSIS...04/939 PM.

A strong high pressure system east of the region will build in
for late week bringing very hot weather to Southern California.
Partly cloudy skies and a cooling trend will develop over the
weekend as high is forecast to shift east. Above normal temperatures
will likely persist into next week.

&&

.SHORT TERM (TDY-SAT)...05/323 AM.

2 to 3 MB offshore trends over Srn Ca have inhibited marine layer
stratus formation. Skies will be sunny over the forecast area this
morning save for the VTA county coast and portions of the Central
Coast and LA county immediate coast.

Heat will be the dominant weather factor over the next three days
with a sub story of dangerous surf and rip currents across the
beaches. Anyone who runs away from dangers of the heat to the
beaches will face the dangers of the sea.

Currently a 599 mb high is over Colorado/Kansas and there are 588
DM hgts over Srn CA. This high will slide to the west and
strengthen through Friday when it will have 601 DM central hgts
over the 4 corners region and 596 hgts over LA county. The ridge
flattens somewhat Saturday and hgts over srn CA fall to about 594
DM. The hgts Friday are about as high as they get in July over
SoCal.

To further add to the heat the weak onshore west to east sfc grads
today will turn to near 3 MB offshore both Friday and Saturday
mornings. The near neutral North/South sfc grads will turn to near
6 MB offshore both Friday and Saturday mornings.

Max temps today will rise about 2 to 4 degrees across the coasts
but will rise about 10 degrees across the inland areas where max
temps will be 5 to 10 degrees above normal. The sunshine and the
already warm airmass will combine with the downsloping (and thus
warming) offshore flow on Friday to produce a record setting day
of dangerous heat. The inland areas which will not be affected but
the downsloping will warm the least only 6 to 9 degrees. The
coasts and vlys however will see a 12 to 18 degree jump in max
temps. Places like the San Fernando Vly will have max temps
between 106 and 113 degrees or about 15 to 20 degrees above
normal. The slightly lower hgts and some afternoon onshore trends
in the afternoon will allow for some cooling on Saturday but only
3 to 6 degrees.

The offshore flow that will develop each evening will keep many
vly and foothill area min temps in the 70s and even lower 80s
overnight both tonight and esp Saturday.

The combination both much above normal temps both during the day
and overnight will lead to dangerous heat conditions. The current
suite of excessive heat watches will be converted to heat warning
later today after proper coordination. People should begin to
make heat mitigation plans now.

The offshore gradients will produce local advisory level
northerly gusts tonight across the SBA south coast and near to the
LA/VTA county border. A stronger offshore push Saturday morning
will likely result in wind advisories for both of the above areas.

Todays low clouds will be the last seen during the period as the
offshore winds will eliminate them. Skies will turn partly cloudy
Friday and then cloudier still on Saturday as high level clouds
spin off from Hurricane Fabio and then over CA.

The location of the upper high over the 4 corners area will open
the door a crack for a some monsoon moisture to move into the LA
county area. Current mdls (esp the EC) keep the moisture to the
south and east of the area but still the position of the high
does warrant a slight chc of TSTMs Saturday afternoon for the
eastern San Gabriels.

.LONG TERM (SUN-WED)...05/345 AM.

The high will not weaken much during the extended period but its
center will shift to the east and settle over Iowa. Hgts will fall
to 594 DM Sunday and will remain near those levels through
Wednesday.

The offshore flow will turn onshore Sunday and then will increase
each day after that.

While the onshore flow at the sfc might eventually produce some
night time low clouds across the coasts think that the easterly
flow aloft will prevent stratus formation.

Max temps will fall through the period not so much inland but
more so across the coasts and vlys due to the stronger and earlier
sea breeze. By Wednesday max temps across the csts/vlys will be
back to near normal.

&&

.AVIATION...05/1205Z.

At 12Z, the marine layer depth was around 1000 feet deep at KLAX.
The top of the marine inversion was around 4300 feet with a
temperature near 23 degrees Celsius.

Moderate confidence in TAFs at coastal terminals with high
confidence elsewhere. Return to VFR conds will be generally
within one hour of TAF. There is a 20 percent chance of IFR or
lower cigs/vsbys at coastal TAF sites after 06Z.

KSBA: Light to occasionally moderate LLWS is possible after 00Z.

KLAX...Moderate confidence in 12Z TAF. There is a 30 percent
chance of IFR cigs/vsbys before returning to VFR between 15Z and
17Z. There is a 20 percent chance of IFR or lower cigs/vsbys at
coastal TAF sites after 06Z. Any east winds are expected to remain
below 8 knots.

KBUR...There is a 10 percent chance of MVFR vsbys between thru
16Z. There is a 20 percent chance of 27008kt between 00Z and 03Z.

&&

.MARINE...05/306 AM.

SCA conds are expected to become widespread across the coastal
waters by late this afternoon or early evening. There is a 30
percent chance that SCA conds do not occur across the inner
waters this evening. A Gale Watch has been issued for the Outer
Waters and is in effect from late Friday afternoon through
Saturday night. There is a 30 percent chance that Gale force winds
do not occur. There is also a 30 percent chance of Gale force
winds across the Inner Waters north of Point Sal during this time.
A SCA will likely be needed for the Santa Barbara Channel Friday
evening. Patchy dense fog is possible at times this evening
through this weekend.

A long period south swell generated by Hurricane Fabio will
continue to move across the coastal waters through Friday
evening, before gradually diminishing. This swell will lead to
hazardous boating conditions nearshore due to large breaking
waves. In addition, hazardous mixed seas are likely due to the
combination of south swell and building short period northwest
waves.

&&

.BEACHES...05/503 AM.

A long-period SE to S swell from what once was Hurricane Fabbio
will peak in intensity across the coastal waters through Friday
before gradually diminishing. This swell, along with a building
short period northwest swell, is expected to produce high surf
with dangerous breaking waves nearing 10 feet. Strong rip currents
are expected and sneaker waves will be possible with this south
swell.

Minor coastal flooding is a concern for low-lying coastal areas
that have south to southeast exposure. Beach parking lots and
normally dry beach areas may be covered in sea water around the
late afternoon high tides. Any damage from the high surf is
expected to be minimal.

With record heat expected at the same time, and many people
heading to the beaches for relief, this swell event is likely to
be extremely dangerous. If entering the water, it always advised
to swim near an occupied lifeguard station.

&&

.FIRE WEATHER...05/509 AM.

A significant heat wave is projected to affect Southern California
through Sunday, bringing a prolonged period of elevated fire
weather conditions to the southwest California. The peak of the
heat wave is expected to be Friday through Saturday, when record
breaking triple digit heat will be likely across many inland
areas. The warmest valley, lower mountain, and desert locations
could soar to between 102 and 113 degrees on Friday and Saturday,
while portions of the Los Angeles County Coast and Santa Barbara
South Coast will likely approach or exceed 100 degrees due to a
northerly offshore wind component. This heat wave will be
accompanied with very low humidities, with the potential for
widespread single digit humidities on Friday, possibly lingering
into Saturday. In addition, there will likely be very poor
overnight humidity recoveries across the mountains and foothills
Thursday night and Friday night. Gusty northerly winds will add to
the fire weather threat, with the strongest winds focused across
the mountains (especially I-5 corridor and Santa Ynez mountains),
Santa Barbara South Coast, Santa Clarita Valley, and Santa Monica
mountains where gusts between 35 and 45 mph are expected. These
areas will have the potential for critical fire weather
conditions. A Fire Weather Watch is in effect for the
aforementioned areas. The strongest northerly winds are expected
late tonight into Friday morning and again Friday night into
Saturday morning when both LAX-Bakersfield and Santa Barbara-
Bakersfield gradients peak around -6 mb. Also of note is the gusty
north winds and very low humidities that develop Thursday night
across southern Santa Barbara County and portions of Los Angeles
county which could bring brief critical fire weather conditions to
those areas. Other areas that could see brief critical fire
weather conditions during this event include the San Fernando
Valley, Ventura county valleys, and interior portions of the
Central Coast.

Due to the hot and unstable conditions expected on Friday and
Saturday, there is the potential for large vertical plume growth
with any new fires, especially over the mountains and foothills. A
surge of monsoon moisture will bring a thunderstorm threat to our
south and east on Saturday, with the leading edge of the mid
level monsoon moisture and instability bringing a slight chance of
thunderstorms to the eastern San Gabriels late in the day. If any
thunderstorms were to develop, there would be the potential for
isolated dry lightning strikes and gusty erratic surface winds.
Very warm conditions are expected to linger on Sunday into early
next week, with some monsoon moisture potentially moving into the
region at times.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement in effect through Friday evening for
      zones 34-35-39. (See LAXCFWLOX).
     Excessive Heat Watch in effect from Friday morning through
      Saturday evening for zones 34>41-44>46-51>54-59-87-88-547. (See LAXNPWLOX).
     High Surf Advisory in effect until 8 PM PDT Friday for zones
      40-41-87. (See LAXCFWLOX).
     Fire Weather Watch in effect from Friday afternoon through
      Saturday morning for zone 239. (See LAXRFWLOX).
     Fire Weather Watch in effect from late tonight through
      Saturday afternoon for zones 246-252>254-288. (See LAXRFWLOX).
PZ...Small Craft Advisory in effect from 3 PM this afternoon to 3
      AM PDT Sunday for zone 645. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 PM this afternoon to 9
      PM PDT this evening for zones 650-655. (See LAXMWWLOX).
     Small Craft Advisory in effect from 9 PM this evening to 3 PM
      PDT Friday for zones 670-676. (See LAXMWWLOX).
     Gale Watch in effect from Friday afternoon through late
      Saturday night for zones 670-673-676. (See LAXMWWLOX).
     Small Craft Advisory in effect from 3 PM this afternoon to 3
      PM PDT Friday for zone 673. (See LAXMWWLOX).

&&

.HAZARD POTENTIAL OUTLOOK (SAT-WED).

Excessive heat is likely across most of southwestern California
through Saturday with record high temperatures and warm overnight
conditions. Advisory-level northerly winds are possible through
Saturday morning across southern Santa Barbara County and through
the I-5 corridor. The hot, dry, and windy conditions will be
critically favorable for large fire growth. There is a small
threat for thunderstorms over the eastern portion on Saturday.
Heat advisories may be needed on Sunday.

&&

PUBLIC...Rorke
AVIATION...Munroe
MARINE...Munroe
BEACHES...Munroe
FIRE...Gomberg/RM
SYNOPSIS...STu/Hall

weather.gov/losangeles

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 8:36 PM PDTSmall Craft AdvisoryLOX3 days
Jul 5, 3:08 AM PDTGale WatchLOX18 hr
Jul 5, 11:01 AM PDTExcessive Heat WarningLOXLos Angeles, Santa Barbara58 hr

Nearby

Red Flag Warnings in California, 2018Every red flag warning in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.