Routine Fire Wx Fcst (With/Without 6-10 Day Outlook)
Issued by NWS Los Angeles, CA
Issued by NWS Los Angeles, CA
558
FNUS56 KLOX 202256
FWFLOX
Fire Weather Planning Forecast For Southwestern California
National Weather Service Los Angeles/Oxnard CA
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY FOR AN
UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF PRODUCING EXTREME FIRE
BEHAVIOR FROM VERTICAL PLUME GROWTH...LOW RELATIVE HUMIDITY...AND
LOCALLY BREEZY WINDS FOR PORTIONS OF THE MOUNTAINS AND FOOTHILLS OF LOS
ANGELES AND VENTURA COUNTIES...
...RED FLAG WARNING IN EFFECT FROM 9 AM PDT THURSDAY TO 9 PM PDT
SATURDAY FOR AN UNSEASONABLY HOT AND UNSTABLE AIR MASS CAPABLE OF
PRODUCING EXTREME FIRE BEHAVIOR FROM VERTICAL PLUME GROWTH...LOW
RELATIVE HUMIDITY...AND LOCALLY BREEZY WINDS FOR PORTIONS OF THE
MOUNTAINS AND FOOTHILLS OF SANTA BARBARA AND SAN LUIS OBISPO COUNTIES...
...LONG DURATION HEATWAVE WITH WIDESPREAD ELEVATED FIRE WEATHER
CONDITIONS INCLUDING POTENTIAL FOR LARGE PLUME DOMINATED FIRES AWAY FROM
THE COAST THROUGH SUNDAY...
.DISCUSSION...
Continued gradual warming and drying will be the story for today as
high pressure continues to build westward over the region. There will be
gusty Sundowner winds this evening with wind gusts up to 30 to 40 mph,
mainly focused from Gaviota to San Marcos Pass. Humidity levels could
lower into the 20 to 40 percent range this evening, thereby increasing
the fire weather concerns for southwest Santa Barbara county.
Temperatures will continue to increase and peak Thursday and Friday, as
a part of a long duration heat wave that will continue through Sunday.
With onshore flow expected to be weaker with this event, heat impacts
will likely spread to inland portions of the coastal plain, where
temperatures between 90 and 100 degrees will be likely. During the peak
of the heatwave, temperatures could soar to between 98 and 110 degrees
for the valleys, lower mountains, and deserts, with minimum humidities
generally ranging between 8 and 20 percent, and mixing heights
potentially rising to between 12,000 and 17,000 feet across the
interior.
While widespread strong winds are not anticipated with this upcoming
heat wave, the combination of hot temperatures, low humidities
(including poor overnight recoveries in the mountains and foothills),
instability, locally breezy conditions, and critically dry fuels away
from the coast will likely bring widespread elevated fire weather
conditions away from the immediate coast. Additionally, the
aforementioned parameters will bring the threat of large plume dominated
fires (especially in the mountains and foothills), capable of rapid
fire growth and extreme fire behavior, including the potential for
pyrocumulus development.
The highest risk areas will be the mountains and foothills of Los
Angeles, Ventura, Santa Barbara, and San Luis Obispo counties, as well
as Santa Clarita Valley and Cuyama Valley, where Red Flag Warnings are
in effect. The Red Flag Warning areas cover areas that have been
climatologically notorious areas for large plume-dominated fires in
similar weather patterns to what is coming later this week.
Moreover, the western edge of a southwest-states monsoonal moisture
influx will overlie Los Angeles and Ventura Counties, which will
contribute to the development of atmospheric buoyancy Friday through
Sunday without significantly moistening the airmass -- i.e., displaced
away from the core of the moisture source. While lightning-induced fire
ignitions are a distinctive possibility on the peripheries of rain
cores, the increase in buoyancy will further aid in large vertical plume
growth accompanied by potential pyrocumulus development and related
extreme fire behavior.
CAZ362-366>368-211145-
Malibu Coast-Los Angeles County Beaches-Palos Verdes Hills-
Los Angeles County Inland Coast including Downtown Los Angeles-
Including the cities of Malibu, Pacific Palisades, LAX, Long Beach,
Redondo Beach, Santa Monica, Torrance, Rancho Palos Verdes,
Beverly Hills, Compton, Culver City, Downey, Hollywood, and Norwalk
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....64-70.
24 hr trend......Little change.
Max humidity........70-100 percent.
24 hr trend......Down 6.
20-foot winds.......Southwest 8-15 mph with gusts to 25 mph early
becoming variable 3-6 mph.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Partly cloudy in the morning then sunny.
Max temperature.....77-84 beaches to 88-98 inland.
24 hr trend......Up 4.
Min humidity........55-65 percent beaches to 35-55 percent inland.
24 hr trend......Down 4.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear except patchy low clouds and fog forming
overnight.
Min temperature.....65-72.
Max humidity........70-100 percent.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny except patchy morning low clouds and fog.
Max temperature.....77-84 beaches to 88-100 inland.
Min humidity........60-70 percent beaches to 35-60 percent inland.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ371>373-548-211145-
Calabasas and Agoura Hills-Western San Fernando Valley-
Eastern San Fernando Valley-Los Angeles County San Gabriel Valley-
Including the cities of Westlake Village, Malibu Lake, Northridge,
Woodland Hills, Van Nuys, Chatsworth, Burbank, Universal City,
Glendale, Sunland, La Canada Flintridge, East Los Angeles, El Monte,
Pasadena, Pomona, and San Gabriel
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....57-66 except 69-74 in the hills.
24 hr trend......Up 4.
Max humidity........60-80 percent except 45-60 percent in the
hills.
24 hr trend......Down 16.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....95-103 except 106-108 farthest inland.
24 hr trend......Up 4.
Min humidity........20-30 percent.
24 hr trend......Little change.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....58-67 except 71-76 in the hills.
Max humidity........50-70 percent.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....95-103 except 100-108 farthest inland.
Min humidity........20-35 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ369-370-211145-
Western Santa Monica Mountains Recreational Area-
Eastern Santa Monica Mountains Recreational Area-
Including the cities of Malibu Bowl and Topanga
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....68-78 except 56-61 colder valleys.
24 hr trend......Up 4.
Max humidity........45-65 percent except 65-80 percent colder
valleys and slopes.
24 hr trend......Down 8.
20-foot winds.......
Valleys.........West 5-10 mph in the evening becoming east 5-10
mph.
Ridges..........West 5-10 mph in the evening becoming east 5-10
mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....90-104 except 78-85 closer to the coast.
24 hr trend......Up 10.
Min humidity........25-40 percent except 40-55 percent closer to
the coast.
24 hr trend......Little change.
20-foot winds.......
Valleys.........Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Ridges..........Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....70-80 except 57-62 colder valleys.
Max humidity........55-70 percent except 70-80 percent colder
valleys and slopes.
20-foot winds.......
Valleys.........West 6-12 mph with gusts to 20 mph in the
evening becoming variable 3-6 mph.
Ridges..........West 6-12 mph with gusts to 20 mph in the
evening becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....85-103 except 78-85 closer to the coast.
Min humidity........40-60 percent.
20-foot winds.......
Valleys.........Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Ridges..........Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ354-355-211145-
Ventura County Beaches-Ventura County Inland Coast-
Including the cities of Oxnard, Point Mugu, Port Hueneme, Ventura,
Camarillo, and East Ventura
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....58-68.
24 hr trend......Up 4.
Max humidity........70-100 percent.
24 hr trend......Down 8.
20-foot winds.......Southwest 6-12 mph in the evening becoming
variable 3-6 mph.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....76-81 beaches to 87-92 inland.
24 hr trend......Up 4.
Min humidity........55-65 percent beaches to 40-55 percent inland.
24 hr trend......Little change.
20-foot winds.......Variable 3-6 mph becoming southwest 10-15 mph
in the afternoon.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear except patchy low clouds and fog forming
overnight.
Min temperature.....60-70.
Max humidity........70-85 percent.
20-foot winds.......West 6-12 mph in the evening becoming variable
3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny except patchy morning low clouds and fog.
Max temperature.....76-81 beaches to 87-92 inland.
Min humidity........60-70 percent beaches to 45-60 percent inland.
20-foot winds.......Variable 3-6 mph becoming southwest 8-12 mph in
the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ356>358-374-211145-
Lake Casitas-Ojai Valley-Central Ventura County Valleys-
Southeastern Ventura County Valleys-
Including the cities of Meiners Oaks, Oak View, Ojai, Fillmore, Piru,
Santa Paula, Moorpark, Newbury Park, Simi Valley, and Thousand Oaks
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....60-70 except 76-81 in the hills.
24 hr trend......Up 4.
Max humidity........55-70 percent except 35-50 percent in the
hills.
24 hr trend......Down 24.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming northeast 5-10 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....94-104 except 78-83 closer to the coast.
24 hr trend......Little change.
Min humidity........30-50 percent except 20-30 percent farthest
inland.
24 hr trend......Down 4.
20-foot winds.......Variable 3-6 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....62-72 except 79-84 in the hills.
Max humidity........60-75 percent except 40-55 percent in the
hills.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....94-104 except 78-83 closer to the coast.
Min humidity........40-55 percent except 25-35 percent farthest
inland.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ375-211145-
Santa Susana Mountains-
Including the city of Oat Mountain
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....72-80 except 66-68 colder valleys.
24 hr trend......Up 12.
Max humidity........30-50 percent except 50-60 percent colder
valleys.
24 hr trend......Down 20.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming northeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....96-104 except 91-93 colder hills.
24 hr trend......Up 4.
Min humidity........20-40 percent.
24 hr trend......Down 4.
20-foot winds.......Northeast 5-10 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....75-83 except 69-75 colder valleys.
Max humidity........35-50 percent except 55-65 percent colder
valleys.
20-foot winds.......Southwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....96-104 except 91-93 colder hills.
Min humidity........25-45 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ288-211145-
Santa Clarita Valley-
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....64-72 except 75-77 in the hills.
24 hr trend......Up 4.
Max humidity........35-45 percent.
24 hr trend......Down 24.
20-foot winds.......Southwest 8-15 mph with gusts to 25 mph early
becoming northeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....100-106.
24 hr trend......Up 4.
Min humidity........15-20 percent.
24 hr trend......Little change.
20-foot winds.......Northeast 5-10 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....66-74 except 78-80 in the hills.
Max humidity........40-55 percent.
20-foot winds.......Southwest 8-15 mph with gusts to 25 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....100-106.
Min humidity........15-25 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ379-380-211145-
Western San Gabriel Mountains and Highway 14 Corridor-
Eastern San Gabriel Mountains-
Including the cities of Acton, Warm Springs, Mill Creek, Mount Wilson,
Mount Baldy, Wrightwood, and The Angeles Crest Highway
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....71-80 except 63-68 colder valleys and slopes.
24 hr trend......Up 8.
Max humidity........20-35 percent except 40-50 percent colder
valleys and slopes.
24 hr trend......Down 10.
20-foot winds.......
Valleys.........Southwest 8-15 mph with gusts to 25 mph in the
evening becoming northeast 5-10 mph.
Ridges..........Southwest 8-15 mph with gusts to 25 mph in the
evening becoming northeast 5-10 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....96-106 low elevations to 82-89 higher
elevations.
24 hr trend......Up 6.
Min humidity........15-25 percent.
24 hr trend......Up 4.
20-foot winds.......
Valleys.........East 5-10 mph becoming south in the afternoon.
Ridges..........East 5-10 mph becoming south in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....74-83 except 65-70 colder valleys and slopes.
Max humidity........20-40 percent except 40-55 percent colder
valleys and slopes.
20-foot winds.......
Valleys.........Southwest 6-12 mph.
Ridges..........Southwest 6-12 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny in the morning then partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon.
Max temperature.....96-106 low elevations to 83-90 higher
elevations.
Min humidity........15-35 percent.
20-foot winds.......
Valleys.........Variable 3-6 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
Ridges..........Variable 3-6 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
CWR (>0.10 in)......10 percent.
$$
CAZ383-211145-
Antelope Valley-
Including the cities of Palmdale, Lancaster, and Lake Los Angeles
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....62-71 except 74-79 in the hills.
24 hr trend......Up 8.
Max humidity........25-35 percent.
24 hr trend......Down 12.
20-foot winds.......West 10-20 mph with gusts to 30 mph in the
evening becoming southwest 8-15 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....104-110.
24 hr trend......Up 4.
Min humidity........9-15 percent.
24 hr trend......Little change.
20-foot winds.......South 5-10 mph becoming northwest 6-12 mph with
gusts to 20 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....66-75 except 79-84 in the hills.
Max humidity........25-35 percent.
20-foot winds.......Southwest 10-20 mph with gusts to 30 mph in the
evening becoming 8-15 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny in the morning then partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon.
Max temperature.....104-110.
Min humidity........10-15 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 8-15 mph
with gusts to 25 mph in the afternoon.
CWR (>0.10 in)......10 percent.
$$
CAZ381-382-211145-
Western Antelope Valley Foothills-Eastern Antelope Valley Foothills-
Including the cities of Elizabeth Lake, Lake Palmdale, Valyermo, Llano,
and Pearblossom
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....65-73 except 77-79 in the hills.
24 hr trend......Up 8.
Max humidity........20-30 percent.
24 hr trend......Down 8.
20-foot winds.......Southwest 8-15 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....95-105.
24 hr trend......Little change.
Min humidity........10-15 percent.
24 hr trend......Up 4.
20-foot winds.......Southeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....68-77 except 78-83 in the hills.
Max humidity........20-30 percent.
20-foot winds.......Southwest 8-15 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny in the morning then partly cloudy. Slight
chance of showers and thunderstorms in the
afternoon.
Max temperature.....95-105.
Min humidity........15-20 percent.
20-foot winds.......Southwest 6-12 mph becoming 8-15 mph with gusts
to 25 mph in the afternoon.
CWR (>0.10 in)......10 percent.
$$
CAZ377-378-211145-
Northern Ventura County Mountains-Interstate 5 Corridor-
Including the cities of Lockwood Valley, Mount Pinos, Ozena,
Tejon Pass, Gorman, and Pyramid Lake
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....70-80 except 46-51 colder valleys and slopes.
24 hr trend......Up 8.
Max humidity........25-45 percent.
24 hr trend......Down 20.
20-foot winds.......
Valleys.........North 8-15 mph with gusts to 25 mph.
Ridges..........North 8-15 mph with gusts to 25 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....94-104 low elevations to 81-88 higher
elevations.
24 hr trend......Up 8.
Min humidity........15-20 percent.
24 hr trend......Little change.
20-foot winds.......
Valleys.........Northeast 6-12 mph becoming south 8-15 mph with
gusts to 25 mph in the afternoon.
Ridges..........Northeast 6-12 mph becoming south 8-15 mph with
gusts to 25 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....74-84 except 52-57 colder valleys and slopes.
Max humidity........25-45 percent.
20-foot winds.......
Valleys.........West 8-15 mph with gusts to 25 mph in the
evening becoming north 6-12 mph.
Ridges..........West 8-15 mph with gusts to 25 mph in the
evening becoming north 6-12 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny in the morning then partly cloudy. Slight
chance of rain showers and thunderstorms in the
afternoon.
Max temperature.....94-104 low elevations to 84-91 higher
elevations.
Min humidity........15-20 percent.
20-foot winds.......
Valleys.........Northeast 5-10 mph becoming south in the
afternoon.
Ridges..........Northeast 5-10 mph becoming south in the
afternoon.
CWR (>0.10 in)......10 percent.
$$
CAZ376-211145-
Southern Ventura County Mountains-
Including the cities of Rose Valley, Matilija, and Topatopa Mountains
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT UNTIL 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....71-81 except 53-58 colder valleys and slopes.
24 hr trend......Up 6.
Max humidity........25-45 percent.
24 hr trend......Down 18.
20-foot winds.......
Valleys.........Northwest 8-15 mph with gusts to 25 mph.
Ridges..........Northwest 8-15 mph with gusts to 25 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....97-105 low elevations to 87-97 higher
elevations.
24 hr trend......Up 4.
Min humidity........10-20 percent.
24 hr trend......Little change.
20-foot winds.......
Valleys.........Northeast 6-12 mph becoming south 8-15 mph with
gusts to 25 mph in the afternoon.
Ridges..........Northeast 6-12 mph becoming south 8-15 mph with
gusts to 25 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....74-84 except 56-61 colder valleys and slopes.
Max humidity........30-50 percent.
20-foot winds.......
Valleys.........West 6-12 mph with gusts to 20 mph in the
evening becoming north 6-12 mph.
Ridges..........West 6-12 mph with gusts to 20 mph in the
evening becoming north 6-12 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....98-106 low elevations to 88-98 higher
elevations.
Min humidity........15-35 percent.
20-foot winds.......
Valleys.........Northeast 5-10 mph becoming south 8-15 mph with
gusts to 25 mph in the afternoon.
Ridges..........Northeast 5-10 mph becoming south 8-15 mph with
gusts to 25 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ353-211145-
Santa Barbara County Interior Mountains-
Including the cities of Big Pine Mountain, Figueroa Mountain,
and San Rafael Mountain
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT FROM 9 AM THURSDAY TO 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....67-76 except 61-66 colder valleys and slopes.
24 hr trend......Up 6.
Max humidity........25-45 percent.
24 hr trend......Down 32.
20-foot winds.......
Valleys.........Northeast 8-15 mph with gusts to 25 mph.
Ridges..........Northeast 8-15 mph with gusts to 25 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....96-103 low elevations to 88-94 higher
elevations.
24 hr trend......Up 6.
Min humidity........15-20 percent.
24 hr trend......Little change.
20-foot winds.......
Valleys.........East 8-15 mph with gusts to 25 mph becoming
west in the afternoon.
Ridges..........East 8-15 mph with gusts to 25 mph becoming
west in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....72-80 except 66-68 colder valleys and slopes.
Max humidity........25-40 percent except 45-55 percent colder
valleys and slopes.
20-foot winds.......
Valleys.........Northwest 6-12 mph with gusts to 20 mph in the
evening becoming northeast.
Ridges..........Northwest 6-12 mph with gusts to 20 mph in the
evening becoming northeast.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....97-104 low elevations to 89-95 higher
elevations.
Min humidity........15-25 percent.
20-foot winds.......
Valleys.........East 5-10 mph becoming southwest 6-12 mph with
gusts to 20 mph in the afternoon.
Ridges..........East 5-10 mph becoming southwest 6-12 mph with
gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ351-211145-
Santa Ynez Mountains Western Range-
Including the city of San Marcos Pass
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT FROM 9 AM THURSDAY TO 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....62-70 except 74-76 in the hills.
24 hr trend......Up 8.
Max humidity........40-60 percent except 30-40 percent in the
hills.
24 hr trend......Down 16.
20-foot winds.......Northwest 10-20 mph with gusts to 30 mph early
becoming northeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....86-94.
24 hr trend......Up 4.
Min humidity........20-40 percent.
24 hr trend......Down 4.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....65-73 except 76-78 in the hills.
Max humidity........50-65 percent except 35-45 percent in the
hills.
20-foot winds.......Northwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....84-94.
Min humidity........30-50 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 5-10 mph in
the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ349-211145-
Santa Barbara County Southwestern Coast-
Including the cities of El Capitan State Beach, Gaviota, Jalama Beach,
and Refugio State Beach
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....53-63 except 68-73 warmer hills.
24 hr trend......Up 4.
Max humidity........65-85 percent except 55-65 percent in the
hills.
24 hr trend......Down 10.
20-foot winds.......Northwest 15-25 mph with gusts to 30 mph in the
evening becoming north 8-15 mph.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....75-85 except 90-95 warmer hills.
24 hr trend......Up 4.
Min humidity........35-55 percent.
24 hr trend......Little change.
20-foot winds.......Northeast 5-10 mph becoming west 10-15 mph in
the afternoon.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....54-63 except 67-72 warmer hills.
Max humidity........65-85 percent.
20-foot winds.......Northwest 8-15 mph in the evening becoming
north 6-12 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....74-83 except 88-93 warmer hills.
Min humidity........45-65 percent.
20-foot winds.......Variable 3-6 mph becoming west 8-12 mph in the
afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ352-211145-
Santa Ynez Mountains Eastern Range-
Including the city of Montecito Hills
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT FROM 9 AM THURSDAY TO 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....63-73 except 78-83 in the hills.
24 hr trend......Up 8.
Max humidity........40-60 percent except 30-40 percent in the
hills.
24 hr trend......Down 12.
20-foot winds.......North 8-15 mph with gusts to 25 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....91-100 except 83-88 closer to the coast.
24 hr trend......Up 4.
Min humidity........20-40 percent.
24 hr trend......Little change.
20-foot winds.......Northeast 8-15 mph with gusts to 25 mph
becoming south 6-12 mph with gusts to 20 mph in
the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....66-75 except 80-85 in the hills.
Max humidity........45-65 percent except 30-45 percent in the
hills.
20-foot winds.......West 5-10 mph early becoming northeast 6-12
mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....91-100 except 83-88 closer to the coast.
Min humidity........40-55 percent except 25-35 percent warmer
hills.
20-foot winds.......East 5-10 mph becoming southwest 5-10 mph in
the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ350-211145-
Santa Barbara County Southeastern Coast-
Including the cities of Carpinteria, Goleta, Montecito,
and Santa Barbara
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....59-67 except 69-71 warmer hills.
24 hr trend......Up 4.
Max humidity........60-80 percent.
24 hr trend......Down 16.
20-foot winds.......South 5-10 mph in the evening becoming east.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....75-83 except 87-89 in the hills.
24 hr trend......Up 8.
Min humidity........45-60 percent.
24 hr trend......Up 6.
20-foot winds.......East 5-10 mph becoming southwest 8-12 mph in
the afternoon.
Marine layer........300 ft asl.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....62-72.
Max humidity........70-85 percent.
20-foot winds.......West 5-10 mph in the evening becoming variable
3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....75-84 except 88-93 in the hills.
Min humidity........55-70 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 5-10 mph in
the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ340-341-346-347-211145-
San Luis Obispo County Beaches-
San Luis Obispo County Inland Central Coast-
Santa Barbara County Central Coast Beaches-
Santa Barbara County Inland Central Coast-
Including the cities of Arroyo Grande, Avila Beach, Cambria, Morro Bay,
Pismo Beach, Lopez Lake, Nipomo, San Luis Obispo, Lompoc,
Vandenberg Space Force Base, Buellton, and Santa Maria
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....54-64.
24 hr trend......Up 4.
Max humidity........65-85 percent.
24 hr trend......Down 6.
20-foot winds.......Northwest 8-15 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....70-77 beaches to 87-97 inland.
24 hr trend......Up 10.
Min humidity........55-65 percent beaches to 25-45 percent inland.
24 hr trend......Down 4.
20-foot winds.......Variable 3-6 mph becoming west 10-15 mph in the
afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear except areas of low clouds and fog
forming overnight.
Min temperature.....56-65.
Max humidity........65-85 percent.
20-foot winds.......West 6-12 mph in the evening becoming variable
3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny except areas of morning low clouds and
fog.
Max temperature.....68-75 beaches to 85-95 inland.
Min humidity........65-75 percent beaches to 35-55 percent inland.
20-foot winds.......Variable 3-6 mph becoming west 8-12 mph in the
afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ348-211145-
Santa Ynez Valley-
Including the cities of Lake Cachuma, Los Olivos, Santa Ynez,
and Solvang
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....52-61 except 65-70 in the hills.
24 hr trend......Little change.
Max humidity........55-75 percent except 40-55 percent in the
hills.
24 hr trend......Down 32.
20-foot winds.......Northwest 8-15 mph with gusts to 25 mph early
becoming northeast 5-10 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....93-104 except 83-88 closer to the coast.
24 hr trend......Up 4.
Min humidity........20-30 percent.
24 hr trend......Little change.
20-foot winds.......Variable 3-6 mph becoming west 8-15 mph with
gusts to 25 mph in the afternoon.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear except areas of low clouds and fog
forming overnight.
Min temperature.....55-64 except 68-73 in the hills.
Max humidity........60-75 percent except 45-60 percent in the
hills.
20-foot winds.......Northwest 6-12 mph with gusts to 20 mph early
becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny except areas of morning low clouds and
fog.
Max temperature.....89-101 except 82-89 closer to the coast.
Min humidity........25-45 percent.
20-foot winds.......Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ342-343-211145-
Santa Lucia Mountains-Southern Salinas Valley-
Including the cities of Hearst Castle, Irish Hills, Atascadero,
Lake Nacimiento, Paso Robles, San Miguel, and Templeton
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....54-64 except 70-75 warmer hills.
24 hr trend......Up 4.
Max humidity........35-55 percent except 55-70 percent colder
valleys and slopes.
24 hr trend......Down 22.
20-foot winds.......
Valleys.........Northwest 6-12 mph.
Ridges..........Northwest 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....98-108 except 77-82 closer to the coast.
24 hr trend......Up 4.
Min humidity........10-25 percent except 30-40 percent closer to
the coast.
24 hr trend......Little change.
20-foot winds.......
Valleys.........North 6-12 mph.
Ridges..........North 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....58-67 except 72-77 warmer hills.
Max humidity........35-55 percent except 60-75 percent colder
valleys and slopes.
20-foot winds.......
Valleys.........West 6-12 mph with gusts to 20 mph in the
evening becoming north 5-10 mph.
Ridges..........West 6-12 mph with gusts to 20 mph in the
evening becoming north 5-10 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....97-107 except 74-79 closer to the coast.
Min humidity........15-35 percent except 40-55 percent closer to
the coast.
20-foot winds.......
Valleys.........Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
Ridges..........Variable 3-6 mph becoming southwest 6-12 mph
with gusts to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ238-345-211145-
Cuyama Valley-San Luis Obispo County Mountains-
Including the cities of Caliente Range, La Panza Range,
and Santa Margarita Lake
356 PM PDT Wed Aug 20 2025
...RED FLAG WARNING IN EFFECT FROM 9 AM THURSDAY TO 9 PM PDT SATURDAY...
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....65-74 except 56-61 colder valleys and slopes.
24 hr trend......Up 8.
Max humidity........30-45 percent.
24 hr trend......Down 24.
20-foot winds.......
Valleys.........Northeast 6-12 mph.
Ridges..........Northeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....100-107 low elevations to 91-100 higher
elevations.
24 hr trend......Up 6.
Min humidity........15-20 percent.
24 hr trend......Up 4.
20-foot winds.......
Valleys.........Northeast 6-12 mph.
Ridges..........Northeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....70-80 except 60-65 colder valleys and slopes.
Max humidity........25-45 percent.
20-foot winds.......
Valleys.........Northwest 6-12 mph with gusts to 20 mph in the
evening becoming east 5-10 mph.
Ridges..........Northwest 6-12 mph with gusts to 20 mph in the
evening becoming east 5-10 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....100-107 low elevations to 93-100 higher
elevations.
Min humidity........15-25 percent.
20-foot winds.......
Valleys.........East 5-10 mph becoming west 6-12 mph with gusts
to 20 mph in the afternoon.
Ridges..........East 5-10 mph becoming west 6-12 mph with gusts
to 20 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
CAZ344-211145-
San Luis Obispo County Interior Valleys-
Including the cities of Carrizo Plain, Creston, and Shandon
356 PM PDT Wed Aug 20 2025
.TONIGHT...
Sky/weather.........Clear.
Min temperature.....55-64 except 67-72 in the Carrizo Plain.
24 hr trend......Up 4.
Max humidity........35-55 percent.
24 hr trend......Down 20.
20-foot winds.......North 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY...
Sky/weather.........Sunny.
Max temperature.....98-107 except 91-98 colder hills.
24 hr trend......Up 8.
Min humidity........10-15 percent.
24 hr trend......Little change.
20-foot winds.......Northeast 6-12 mph.
Marine layer........None.
CWR (>0.10 in)......0 percent.
.THURSDAY NIGHT...
Sky/weather.........Clear.
Min temperature.....59-68 except 73-78 in the Carrizo Plain.
Max humidity........30-50 percent.
20-foot winds.......Northwest 6-12 mph with gusts to 20 mph in the
evening becoming variable 3-6 mph.
CWR (>0.10 in)......0 percent.
.FRIDAY...
Sky/weather.........Sunny.
Max temperature.....96-106.
Min humidity........15-20 percent.
20-foot winds.......Variable 3-6 mph becoming northwest 8-15 mph
with gusts to 25 mph in the afternoon.
CWR (>0.10 in)......0 percent.
$$
.Extended...
...Coasts/Valleys Including the Santa Monica Range...
.SATURDAY...Clear except night through morning low clouds and fog.
Lows in the 50s to upper 70s. Highs from the upper 60s to mid 70s at
the beaches to 95 to 105 inland. Northwest winds 8 to 15 mph.
.SUNDAY...Clear except night through morning low clouds and fog.
Lows in the 50s to upper 70s. Highs from the mid 60s to lower 70s at
the beaches to 93 to 103 inland. Northwest winds 8 to 15 mph.
.MONDAY...Clear except night through morning low clouds and fog.
Lows in the mid 50s to around 70. Highs from the mid 60s to around
70 at the beaches to the upper 80s to mid 90s inland. West winds 8
to 15 mph.
...Mountains / Los Padres and Angeles National Forests...
.SATURDAY...Clear. Slight chance of showers and thunderstorms. Lows
from the mid 70s to low 80s at low elevations to the upper 50s to
mid 60s in colder valleys and peaks. Highs from 93 to 103 at low
elevations to the mid 80s to around 90 at high elevations. Southeast
winds 8 to 15 mph.
.SUNDAY...Clear. Slight chance of showers and thunderstorms. Lows
from the 70s to lower 80s at low elevations to the mid 50s to lower
60s in colder valleys and peaks. Highs from 92 to 102 at low
elevations to the 80s at high elevations. South winds 8 to 15 mph.
.MONDAY...Clear. Slight chance of showers and thunderstorms. Lows
from the mid 60s to mid 70s at low elevations to the 50s in colder
valleys and peaks. Highs from the upper 80s and 90s at low
elevations to the upper 70s to mid 80s at high elevations. South
winds 10 to 20 mph with gusts to 30 mph.
...Antelope Valley...
.SATURDAY...Partly cloudy with slight chance of showers and
thunderstorms. Lows in the mid 60s to mid 70s except the lower to
mid 80s in the hills. Highs 100 to 106. Southwest winds 15 to 25 mph
with gusts to 35 mph.
.SUNDAY...Partly cloudy. Slight chance of showers and thunderstorms.
Lows in the mid 60s to mid 70s except around 80 in the hills. Highs
99 to 105. Southwest winds 15 to 25 mph with gusts to 35 mph.
.MONDAY...Clear. Slight chance of showers and thunderstorms. Lows in
the upper 60s and 70s. Highs 95 to 101. Southwest winds 15 to 25 mph
with gusts to 35 mph.
$$
WWW.WEATHER.GOV/LOSANGELES