Heat Advisory
* WHAT...High temperatures 80 to 90 degrees.
* WHERE...Orange County Coastal Areas and San Diego County Coastal
Areas.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 20, 2026 18:21
Until: Mar 21, 2026 03:00
Extreme Heat Warning
* WHAT...Dangerously hot conditions with temperatures between 96 and
104 expected.
* WHERE...A portion of southwest California.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...There is a high risk for dangerous heat illness for
anyone, especially for the very young, the very old, those without
air conditioning, and those active outdoors.
* ADDITIONAL DETAILS...Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.
From: Mar 20, 2026 07:05
Until: Mar 21, 2026 03:00
Heat Advisory
* WHAT...Hot conditions with high temperatures between 80 and 90
expected.
* WHERE...Catalina and Santa Barbara Islands.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...There is a high risk for heat illness for sensitive
populations including the very young, the very old, those without
air conditioning, and those active outdoors.
* ADDITIONAL DETAILS...Warm overnight low temperatures will
contribute to the heat risk, especially in the mountain and
foothill locations.
From: Mar 20, 2026 07:05
Until: Mar 21, 2026 03:00
Heat Advisory
* WHAT...High temperatures 90 to 97.
* WHERE...Orange County Inland Areas and San Diego County Valleys.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 20, 2026 18:21
Until: Mar 21, 2026 03:00
Heat Advisory
* WHAT...High temperatures 80 to 92.
* WHERE...Santa Ana Mountains and Foothills.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 20, 2026 18:21
Until: Mar 21, 2026 03:00
Heat Advisory
* WHAT...Temperatures 80 to 90.
* WHERE...Orange County Coastal Areas and San Diego County Coastal
Areas.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 20, 2026 04:36
Until: Mar 20, 2026 13:30
Heat Advisory
* WHAT...Temperatures 90 to 97.
* WHERE...Orange County Inland Areas and San Diego County Valleys.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 20, 2026 04:36
Until: Mar 20, 2026 13:30
Heat Advisory
* WHAT...High temperatures in upper 80s to mid 90s.
* WHERE...Orange County Inland Areas.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 19, 2026 16:56
Until: Mar 20, 2026 05:15
Heat Advisory
* WHAT...High temperatures in the 90s expected.
* WHERE...Santa Ana Mountains and Foothills.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Overnight lows in the mid 60s to low 70s will
limit overnight relief from the heat.
From: Mar 19, 2026 16:56
Until: Mar 20, 2026 05:15
Heat Advisory
* WHAT...High temperatures in the low to mid 80s.
* WHERE...Orange County Coastal Areas.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
From: Mar 19, 2026 16:56
Until: Mar 20, 2026 05:15
Frost Advisory
* WHAT...Temperatures as low as 34 will result in frost formation.
* WHERE...Calabasas and Agoura Hills, Ojai Valley, and Santa Ynez
Valley.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Feb 22, 2026 09:16
Until: Feb 22, 2026 17:00
Frost Advisory
* WHAT...Temperatures as low as 35 will result in frost formation.
* WHERE...Calabasas and Agoura Hills, Ojai Valley, and Santa Ynez
Valley.
* WHEN...From midnight tonight to 9 AM PST Sunday.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Feb 22, 2026 03:48
Until: Feb 22, 2026 17:00
Frost Advisory
* WHAT...Temperatures as low as 32 degrees will result in frost
formation.
* WHERE...Calabasas and Agoura Hills, Central Ventura County
Valleys, Ojai Valley, Santa Clarita Valley, Santa Susana
Mountains, Southeastern Ventura County Valleys, and Western San
Fernando Valley.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
outdoor plants may be killed if left uncovered.
From: Feb 21, 2026 09:07
Until: Feb 21, 2026 17:00
Freeze Warning
* WHAT...Sub-freezing temperatures as low as 26 to 30 degrees
expected.
* WHERE...Cuyama Valley, Eastern Antelope Valley Foothills, and
Western Antelope Valley Foothills.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
From: Feb 21, 2026 09:07
Until: Feb 21, 2026 17:00
High Surf Advisory
* WHAT...High surf of 3 to 6 feet is expected, with sets as high
as 7 feet in San Diego County.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
* ADDITIONAL DETAILS...High surf will subside slowly during the
day today.
From: Feb 20, 2026 12:28
Until: Feb 20, 2026 22:00
Winter Storm Warning
* WHAT...Heavy snow possible. Total snow accumulations of 1 to 4
inches for 3500 to 4500 feet elevation including the Grapevine of
the Interstate-5 Corridor possible. Total snow accumulations of 6
to 12 inches above 4500 feet elevation possible. Wind gusts of up
to 60 to 70 mph possible this afternoon through late tonight, and
again late Wednesday night into Thursday morning.
* WHERE...Interstate 5 Corridor, Santa Barbara County Interior
Mountains, and Southern Ventura County Mountains.
* WHEN...Until 7 AM PST Friday.
* IMPACTS...Roads, especially bridges and overpasses, will likely
become slick and hazardous. Travel could become treacherous.
Visibilities may drop below one-quarter mile due to falling and
blowing snow.
From: Feb 19, 2026 19:49
Until: Feb 20, 2026 15:00
Winter Storm Warning
* WHAT...Heavy snow possible. Total snow accumulations of up to 4
inches between 3500 and 4500 feet, 6 to 12 inches for 4500 to 6000
feet, and 1 to 2 feet above 6000 feet. Wind gusts of up to 60 to
70 mph possible this afternoon through late tonight, and again
late Wednesday night into Thursday morning.
* WHERE...Eastern San Gabriel Mountains and Northern Ventura County
Mountains.
* WHEN...Until 7 AM PST Friday.
* IMPACTS...Roads, especially bridges and overpasses, will likely
become slick and hazardous. Travel could become treacherous.
Visibilities may drop below one-quarter mile due to falling and
blowing snow. Damaging winds could blow down trees and power lines.
* ADDITIONAL DETAILS...There will be a break in the snowfall for
Tuesday into Tuesday night, before heavy snow returns by
Wednesday. However, blowing and drifting snow producing
significant visibility restrictions will continue above 6000 feet
elevation, even during the break in snowfall.
From: Feb 19, 2026 19:49
Until: Feb 20, 2026 15:00
Winter Storm Warning
* WHAT...Heavy snow possible. Total snow accumulations of 1 to 4
inches for 3500 to 4500 feet elevation, and 4 to 8 inches above
4500 feet elevation. Wind gusts of up to 60 to 70 mph possible
this afternoon through late tonight, and again late Wednesday
night into Thursday morning.
* WHERE...Eastern Antelope Valley Foothills, Western Antelope Valley
Foothills, and Western San Gabriel Mountains and Highway 14
Corridor.
* WHEN...Until 7 AM PST Friday.
* IMPACTS...Plan on slippery road conditions. The hazardous
conditions could impact the Thursday evening and Friday morning
commutes. Gusty winds could bring down tree branches.
From: Feb 19, 2026 19:49
Until: Feb 20, 2026 15:00
High Surf Advisory
* WHAT...High surf of 3 to 6 feet is expected, with sets as high
as 7 feet in San Diego County.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...Until 10 PM PST Friday.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
* ADDITIONAL DETAILS...High surf will slowly subside into Friday
afternoon.
From: Feb 20, 2026 05:56
Until: Feb 20, 2026 14:00
Wind Advisory
* WHAT...Northeast winds 15 to 25 mph with gusts to 35 mph common.
Local gusts to 45 mph in the mountains and hills.
* WHERE...Santa Clarita Valley, Santa Susana Mountains, Southeastern
Ventura County Valleys, and Western San Gabriel Mountains and
Highway 14 Corridor.
* WHEN...Until 5 PM PST this afternoon.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Jan 30, 2026 21:09
Until: Jan 31, 2026 01:00
Air Quality Alert
* WHAT...The South Coast AQMD has issued a mandatory wood-burning
ban for residents in the South Coast Air Basin. The No-Burn rule
bans burning wood, pellets, and manufactured fire logs in any indoor
or outdoor wood-burning device.
* WHERE...The South Coast Air Basin, which includes Orange County
and non-desert portions of Los Angeles, Riverside, and San
Bernardino counties. No-Burn Day alerts do not apply to areas above
3,000 feet in elevation, the Coachella Valley, or the High Desert.
Homes that rely on wood as a sole source of heat, low-income
households and those without natural gas service also are exempt
from the requirement.
* WHEN...12 AM Thursday to 12 AM Friday.
* IMPACTS...Particles in smoke can get deep into the lungs and cause
health problems (including asthma attacks), increases in emergency
room visits, and hospitalizations. No-Burn Days are needed to
protect public health when fine particle pollution levels are
expected to be high anywhere in the South Coast Air Basin. No-Burn
Days are based on fine particle pollution levels that are forecasted
for an entire 24-hour period, which may not be reflected in
real-time air quality maps.
From: Jan 21, 2026 19:07
Until: Jan 23, 2026 08:00
Dense Fog Advisory
* WHAT...Areas of dense fog with visibility one quarter mile or less.
* WHERE...Orange County Coastal Areas, Orange County Inland Areas,
San Diego County Coastal Areas, and San Diego County Valleys. The
lowest visibilities will be on higher coastal terrain and western
portions of the inland valleys.
* WHEN...Until 9 AM PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Jan 21, 2026 03:12
Until: Jan 21, 2026 17:00
Dense Fog Advisory
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Near high coastal terrain and inland areas in Orange
County, near higher coastal terrain into the western valleys in
San Diego County.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
From: Jan 21, 2026 10:13
Until: Jan 21, 2026 17:00
Wind Advisory
* WHAT...For the Wind Advisory, northeast winds 20 to 30 mph with
gusts up to 50 mph expected. For the Freeze Warning, sub-freezing
temperatures as low as 25 expected.
* WHERE...Western Antelope Valley Foothills.
* WHEN...For the Wind Advisory, until 1 PM PST Sunday. For the
Freeze Warning, from midnight tonight to 9 AM PST Friday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
Frost and freeze conditions could kill crops, other sensitive
vegetation and possibly damage unprotected outdoor plumbing.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 02:59
Until: Jan 11, 2026 21:00
Wind Advisory
* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph.
* WHERE...Calabasas and Agoura Hills, Eastern Santa Monica Mountains
Recreational Area, Malibu Coast, Santa Clarita Valley,
Southeastern Ventura County Valleys, and Western San Fernando
Valley.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 02:59
Until: Jan 11, 2026 21:00
Wind Advisory
* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph.
* WHERE...Interstate 5 Corridor, Northern Ventura County Mountains,
and Southern Ventura County Mountains.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 02:59
Until: Jan 11, 2026 21:00
High Wind Warning
* WHAT...Northeast winds 30 to 40 mph with gusts up to 60 mph.
* WHERE...Eastern San Gabriel Mountains, Santa Susana Mountains, and
Western San Gabriel Mountains and Highway 14 Corridor.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel will be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 02:59
Until: Jan 11, 2026 21:00
Freeze Warning
* WHAT...For the Wind Advisory, northeast winds 20 to 30 mph with
gusts up to 50 mph expected. For the Freeze Warning, sub-freezing
temperatures as low as 25 expected.
* WHERE...Western Antelope Valley Foothills.
* WHEN...For the Wind Advisory, until 1 PM PST Sunday. For the
Freeze Warning, from midnight tonight to 9 AM PST Friday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
Frost and freeze conditions could kill crops, other sensitive
vegetation and possibly damage unprotected outdoor plumbing.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 02:59
Until: Jan 11, 2026 21:00
High Wind Warning
* WHAT...Northeast winds 30 to 40 mph with gusts up to 60 mph
expected.
* WHERE...Western Santa Monica Mountains Recreational Area.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Damaging winds could blow down trees and power lines and
recently saturated soils will increase this risk. Widespread power
outages are possible. Travel will be difficult, especially for
high profile vehicles.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 21:22
Until: Jan 10, 2026 22:30
High Wind Warning
* WHAT...North shifting northeast winds 25 to 40 mph with gusts up
to 70 mph expected.
* WHERE...Eastern San Gabriel Mountains, Santa Susana Mountains, and
Western San Gabriel Mountains and Highway 14 Corridor.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Damaging winds could blow down trees and power lines and
recently saturated soils will increase this risk. Widespread power
outages are possible. Travel will be difficult, especially for
high profile vehicles.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 08:40
Until: Jan 10, 2026 22:30
Wind Advisory
* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph.
Strongest in the hills.
* WHERE...Calabasas and Agoura Hills, Eastern Santa Monica Mountains
Recreational Area, Malibu Coast, Santa Clarita Valley,
Southeastern Ventura County Valleys, and Western San Fernando
Valley.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result, and
recently saturated soils will increase the risk of downed trees.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 08:40
Until: Jan 10, 2026 22:30
Wind Advisory
* WHAT...Northeast winds 20 to 30 mph with gusts up to 50 mph.
* WHERE...Interstate 5 Corridor, Northern Ventura County Mountains,
Southern Ventura County Mountains, and Western Antelope Valley
Foothills.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Jan 09, 2026 21:22
Until: Jan 10, 2026 22:30
Beach Hazards Statement
* WHAT...Dangerous rip currents and breaking waves due to
elevated surf expected.
* WHERE...Catalina and Santa Barbara Islands, Ventura County
Beaches, Malibu Coast and Los Angeles County Beaches.
* WHEN...Until 9 PM PST this evening.
* IMPACTS...There is an increased risk of ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Waves can
wash people off beaches and rocks, and capsize small boats
nearshore.
* ADDITIONAL DETAILS...Surf heights of 3 to 6 feet with local
sets to 7 feet are expected.
From: Jan 09, 2026 23:28
Until: Jan 10, 2026 05:00
Wind Advisory
* WHAT...Northeast winds 25 to 35 mph with gusts 40 to 60 mph
expected, locally higher near Fremont Canyon.
* WHERE...Santa Ana Mountains and Foothills.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Jan 09, 2026 19:50
Until: Jan 10, 2026 04:00
Wind Advisory
* WHAT...Northeast winds 15 to 25 mph with gusts 35 to 55 mph
expected. Strongest winds are expected east of Interstate 5 and
near the foothills of the Santa Ana mountains this afternoon.
Gusts up to 70 mph this afternoon in wind prone canyons.
* WHERE...Orange County Inland Areas.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Jan 09, 2026 19:50
Until: Jan 10, 2026 04:00
Wind Advisory
* WHAT...For the Wind Advisory, northeast winds 20 to 30 mph with
gusts up to 50 mph expected. For the Freeze Warning, sub-freezing
temperatures as low as 25 expected.
* WHERE...Western Antelope Valley Foothills.
* WHEN...For the Freeze Warning, until 9 AM PST this morning. For
the Wind Advisory, until 1 PM PST Sunday.
* IMPACTS...Damaging winds could blow down trees and power lines and
recently saturated soils will increase this risk. Widespread power
outages are possible. Travel will be difficult, especially for
high profile vehicles. Frost and freeze conditions could kill
crops, other sensitive vegetation and possibly damage unprotected
outdoor plumbing.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 08:40
Until: Jan 09, 2026 23:00
Freeze Warning
* WHAT...For the Wind Advisory, northeast winds 20 to 30 mph with
gusts up to 50 mph expected. For the Freeze Warning, sub-freezing
temperatures as low as 25 expected.
* WHERE...Western Antelope Valley Foothills.
* WHEN...For the Freeze Warning, until 9 AM PST this morning. For
the Wind Advisory, until 1 PM PST Sunday.
* IMPACTS...Damaging winds could blow down trees and power lines and
recently saturated soils will increase this risk. Widespread power
outages are possible. Travel will be difficult, especially for
high profile vehicles. Frost and freeze conditions could kill
crops, other sensitive vegetation and possibly damage unprotected
outdoor plumbing.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 08:40
Until: Jan 09, 2026 23:00
High Wind Warning
* WHAT...Northeast winds 30 to 40 mph with gusts up to 60 mph
expected.
* WHERE...Western Santa Monica Mountains Recreational Area.
* WHEN...Until 3 PM PST Friday.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel will be difficult,
especially for high profile vehicles.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 02:59
Until: Jan 09, 2026 23:00
High Wind Warning
* WHAT...Northeast winds 30 to 40 mph with gusts up to 60 mph
expected.
* WHERE...Western Santa Monica Mountains Recreational Area.
* WHEN...Until 3 PM PST this afternoon.
* IMPACTS...Damaging winds could blow down trees and power lines and
recently saturated soils will increase this risk. Widespread power
outages are possible. Travel will be difficult, especially for
high profile vehicles.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 08:40
Until: Jan 09, 2026 23:00
Wind Advisory
* WHAT...For the High Wind Warning, north winds 25 to 40 mph with
gusts up to 65 mph. For the Wind Advisory, northeast winds 20 to
30 mph with gusts up to 55 mph expected.
* WHERE...Interstate 5 Corridor, Northern Ventura County Mountains,
and Southern Ventura County Mountains.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Damaging winds could blow down trees and power lines.
Risk is increased due to recently saturated soils. Widespread
power outages are possible. Travel will be difficult, especially
for high profile vehicles.
* ADDITIONAL DETAILS...Wet soils will increase the likelihood of
damage due to fallen trees.
From: Jan 09, 2026 08:40
Until: Jan 09, 2026 23:00
Beach Hazards Statement
* WHAT...Dangerous rip currents and breaking waves due to
elevated surf expected.
* WHERE...Catalina and Santa Barbara Islands, Ventura County
Beaches, Malibu Coast and Los Angeles County Beaches.
* WHEN...Through this evening.
* IMPACTS...There is an increased risk of ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Waves can
wash people off beaches and rocks, and capsize small boats
nearshore.
* ADDITIONAL DETAILS...Surf heights of 3 to 6 feet with local
sets to 7 feet are expected.
From: Jan 09, 2026 09:44
Until: Jan 09, 2026 22:15
Wind Advisory
* WHAT...Northeast winds 25 to 35 mph with gusts 40 to 60 mph
expected, locally higher near Fremont Canyon. Strongest and most
widespread winds will be this morning.
* WHERE...Santa Ana Mountains and Foothills.
* WHEN...Until 1 PM PST Sunday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
From: Jan 09, 2026 11:03
Until: Jan 09, 2026 19:15
