Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1142 AM PDT Wed Mar 11 2026
CAZ043-048-050-552-554-120615-
/O.CON.KSGX.HT.Y.0001.260312T1700Z-260314T0300Z/
San Diego County Coastal Areas-San Bernardino and Riverside
County Valleys-The Inland Empire-San Diego County Valleys-Orange
County Coastal Areas-Orange County Inland Areas-
Including the cities of Rancho Cucamonga, Garden Grove,
Riverside, San Diego, Costa Mesa, Vista, Poway, National City,
Moreno Valley, Anaheim, Ontario, Orange, Santee, Fullerton,
Fontana, Mission Viejo, Chula Vista, San Marcos, Corona, El
Cajon, Carlsbad, Santa Ana, La Mesa, San Bernardino, Encinitas,
Oceanside, Huntington Beach, Irvine, and Escondido
1142 AM PDT Wed Mar 11 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY TO 8 PM PDT
FRIDAY...
* WHAT...High temperatures from the low to mid 80s near the coast
and low to mid 90s for the valleys and inland Orange County
expected.
* WHERE...Orange County Coastal Areas, Orange County Inland Areas,
San Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Coastal Areas, and San Diego County Valleys.
* WHEN...From 10 AM Thursday to 8 PM PDT Friday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Very warm temperatures are expected to
continue into the weekend and beyond. Elevated overnight lows will
limit overnight relief from the heat.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
CO
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1111 AM PDT Wed Mar 11 2026
CAZ088-354>358-362-366>375-548-121330-
/O.CON.KLOX.HT.Y.0002.260312T1700Z-260314T0300Z/
Santa Clarita Valley-Ventura County Beaches-Ventura County Inland
Coast-Lake Casitas-Ojai Valley-Central Ventura County Valleys-
Malibu Coast-Los Angeles County Beaches-Palos Verdes Hills-Los
Angeles County Inland Coast including Downtown Los Angeles-
Western Santa Monica Mountains Recreational Area-Eastern Santa
Monica Mountains Recreational Area-Calabasas and Agoura Hills-
Western San Fernando Valley-Eastern San Fernando Valley-
Southeastern Ventura County Valleys-Santa Susana Mountains-Los
Angeles County San Gabriel Valley-
Including the cities of Valencia, El Monte, Beverly Hills,
Westlake Village, Glendale, Newbury Park, Santa Clarita,
Fillmore, Compton, Pacific Palisades, Culver City, Long Beach,
Malibu Lake, Meiners Oaks, Oxnard, Moorpark, Point Mugu, East
Ventura, Torrance, Simi Valley, Santa Monica, East Los Angeles,
Norwalk, Redondo Beach, Hollywood, Downey, Newhall, Ventura,
Piru, Woodland Hills, Ojai, Universal City, Malibu, Malibu Bowl,
Burbank, La Canada Flintridge, Pasadena, San Gabriel, Northridge,
Camarillo, Topanga, Van Nuys, Oat Mountain, Pomona, Lake Castaic,
Thousand Oaks, Rancho Palos Verdes, Sunland, LAX, Port Hueneme,
Chatsworth, Oak View, and Santa Paula
1111 AM PDT Wed Mar 11 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY TO 8 PM PDT
FRIDAY...
* WHAT...Widespread temperatures of 90 to 100 expected.
* WHERE...A portion of southwest California.
* WHEN...From 10 AM Thursday to 8 PM PDT Friday.
* 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...Well above normal temperatures will continue
well into next week, and additional Heat Advisories or Extreme
Heat Warnings may be needed.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1111 AM PDT Wed Mar 11 2026
CAZ340>342-346>352-121330-
/O.CON.KLOX.HT.Y.0002.260312T1700Z-260314T0300Z/
San Luis Obispo County Beaches-San Luis Obispo County Inland
Central Coast-Santa Lucia Mountains-Santa Barbara County Central
Coast Beaches-Santa Barbara County Inland Central Coast-Santa
Ynez Valley-Santa Barbara County Southwestern Coast-Santa Barbara
County Southeastern Coast-Santa Ynez Mountains Western Range-
Santa Ynez Mountains Eastern Range-
Including the cities of Avila Beach, Lake Cachuma, Santa Barbara,
Vandenberg Space Force Base, San Luis Obispo, El Capitan State
Beach, Jalama Beach, Solvang, Lopez Lake, San Marcos Pass,
Gaviota, Irish Hills, Goleta, Carpinteria, Cambria, Nipomo, Santa
Ynez, Hearst Castle, Morro Bay, Arroyo Grande, Santa Maria, Los
Olivos, Montecito, Buellton, Montecito Hills, Pismo Beach,
Lompoc, and Refugio State Beach
1111 AM PDT Wed Mar 11 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY TO 8 PM PDT
FRIDAY...
* WHAT...Temperatures of 85 to 95 expected.
* WHERE...San Luis Obispo County Beaches, San Luis Obispo County
Inland Central Coast, Santa Barbara County Central Coast Beaches,
Santa Barbara County Inland Central Coast, Santa Barbara County
Southeastern Coast, Santa Barbara County Southwestern Coast, Santa
Lucia Mountains, Santa Ynez Mountains Eastern Range, Santa Ynez
Mountains Western Range, and Santa Ynez Valley.
* WHEN...From 10 AM Thursday to 8 PM PDT Friday.
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
Visit us at http://www.weather.gov/LosAngeles
RAT
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
903 PM PDT Wed Mar 11 2026
PZZ670-673-121700-
/O.CON.KLOX.SC.Y.0036.000000T0000Z-260314T1000Z/
Point Piedras Blancas to Point Sal from 10 to 60 NM-
Waters from Pt. Sal to Santa Cruz Island CA and westward 60 nm
including San Miguel and Santa Rosa Islands-
903 PM PDT Wed Mar 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
SATURDAY...
* WHAT...Hazardous sea conditions.
* WHERE...Point Piedras Blancas to Point Sal from 10 to 60 NM
and Waters from Pt. Sal to Santa Cruz Island CA and westward
60 nm including San Miguel and Santa Rosa Islands.
* WHEN...Until 3 AM PDT Saturday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX)
for more.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
903 PM PDT Wed Mar 11 2026
PZZ676-121000-
/O.CON.KLOX.SC.Y.0036.000000T0000Z-260312T1000Z/
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
903 PM PDT Wed Mar 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT
THURSDAY...
* WHAT...Hazardous sea conditions.
* WHERE...Outer waters from Santa Cruz Island to San Clemente
Island to 60 NM offshore including San Nicolas and Santa
Barbara Islands.
* WHEN...Until 3 AM PDT Thursday.
* IMPACTS...Conditions will be hazardous to small craft.
* ADDITIONAL DETAILS...See the Coastal Waters Forecast (CWFLOX)
for more.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
803 PM PDT Wed Mar 11 2026
PZZ576-121115-
/O.CON.KMTR.SC.Y.0026.000000T0000Z-260313T1000Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
803 PM PDT Wed Mar 11 2026
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 30 kt.
* WHERE...Waters from Point Pinos to Point Piedras Blancas 10-
60 NM.
* WHEN...Until 3 AM PDT Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
For more information from the National Weather Service visit
http://weather.gov/sanfrancisco
