Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1109 AM PDT Mon Sep 7 2026
CAZ061-062-065-080515-
/O.NEW.KSGX.XH.W.0009.260909T1700Z-260912T0300Z/
Coachella Valley-San Diego County Deserts-San Gorgonio Pass near
Banning-
Including the cities of Coachella, Palm Springs, Palm Desert Country,
Banning, Borrego Springs, La Quinta, Desert Hot Springs, Cathedral
City, Indio, and Palm Desert
1109 AM PDT Mon Sep 7 2026
...EXTREME HEAT WARNING IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
FRIDAY...
* WHAT...Dangerously hot conditions with temperatures up to 110
degrees expected and overnight low temperatures in the mid-80s to
low 90s.
* WHERE...Coachella Valley, San Diego County Deserts, and San
Gorgonio Pass near Banning.
* WHEN...From 10 AM Wednesday to 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Areas of major HeatRisk. Elevated 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
839 AM PDT Mon Sep 7 2026
AZZ530-533-CAZ569-570-081200-
/O.CON.KPSR.XH.W.0009.260909T1700Z-260912T0300Z/
Parker Valley-Central La Paz-Palo Verde Valley-Chuckwalla Valley-
Including the cities of Martinez Lake, Ehrenberg, Vicksburg,
Vicksburg Junction, Blythe, Palo Verde, Harcuvar, Ripley, Salome,
Quartzsite, Brenda, Midland, and Parker
839 AM MST Mon Sep 7 2026 /839 AM PDT Mon Sep 7 2026/
...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM MST /10 AM PDT/
WEDNESDAY TO 8 PM MST /8 PM PDT/ FRIDAY...
* WHAT...Dangerously hot conditions. Afternoon temperatures 102 to
111 expected. Major Heat Risk.
* WHERE...In Arizona, Central La Paz and Parker Valley. In
California, Chuckwalla Valley and Palo Verde Valley.
* WHEN...From 10 AM MST /10 AM PDT/ Wednesday to 8 PM MST /8 PM PDT/
Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Overexposure can cause heat cramps and heat
exhaustion to develop and, without intervention, can lead to heat
stroke.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
An Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.
Take extra precautions if you work or spend time outside. When
possible, reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose-fitting clothing when possible and
drink plenty of water.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
Public cooling shelters are available in some areas. Consult county
officials for more details.
&&
$$
AR
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1155 AM PDT Mon Sep 7 2026
CAZ038-088-340>358-374-375-082300-
/O.NEW.KLOX.HT.Y.0016.260909T1700Z-260911T0300Z/
Cuyama Valley-Santa Clarita Valley-San Luis Obispo County Beaches-
San Luis Obispo County Inland Central Coast-Santa Lucia Mountains-
Southern Salinas Valley-San Luis Obispo County Interior Valleys-
San Luis Obispo County 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-Santa Barbara County Interior
Mountains-Ventura County Beaches-Ventura County Inland Coast-Lake
Casitas-Ojai Valley-Central Ventura County Valleys-Southeastern
Ventura County Valleys-Santa Susana Mountains-
Including the cities of Carpinteria, Caliente Range, Montecito,
Thousand Oaks, Santa Margarita Lake, Newhall, La Panza Range, Lake
Castaic, Camarillo, East Ventura, Ojai, San Rafael Mountain, Morro
Bay, Lompoc, Arroyo Grande, Santa Barbara, Cambria, Templeton,
Vandenberg Space Force Base, Oxnard, Meiners Oaks, Creston, Lopez
Lake, Lake Cachuma, Goleta, Simi Valley, Santa Clarita, Montecito
Hills, Ventura, Oat Mountain, Avila Beach, Gaviota, Shandon, Point
Mugu, Fillmore, Piru, Paso Robles, San Marcos Pass, Santa Maria,
Solvang, San Luis Obispo, Refugio State Beach, New Cuyama, Big Pine
Mountain, Carrizo Plain, Irish Hills, Jalama Beach, Santa Paula,
Atascadero, Los Olivos, Valencia, Hearst Castle, Santa Ynez,
Moorpark, Pismo Beach, Lake Nacimiento, Newbury Park, El Capitan
State Beach, Buellton, Oak View, Port Hueneme, Figueroa Mountain,
Nipomo, and San Miguel
1155 AM PDT Mon Sep 7 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 8 PM PDT
THURSDAY...
* WHAT...Temperatures of 85 to 105 expected. 10 to 20 degrees above
normal.
* WHERE...A portion of southwest California.
* WHEN...From 10 AM Wednesday to 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Humid conditions will add to heat discomfort.
Heat peaking on Wednesday for most areas, except likely peaking
Thursday for the Santa Barbara South Coast. Chance for Heat
Advisories to be extended into Friday.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1155 AM PDT Mon Sep 7 2026
CAZ362-366>373-548-082300-
/O.NEW.KLOX.HT.Y.0016.260908T1700Z-260911T0300Z/
Malibu Coast-Los Angeles County Beaches-Palos Verdes Hills-Los
Angeles County Inland Coast including Downtown Los Angeles-
Western Santa Monica Mountains Recreational Area-Eastern Santa
Monica Mountains Recreational Area-Calabasas and Agoura Hills-
Western San Fernando Valley-Eastern San Fernando Valley-Los
Angeles County San Gabriel Valley-
Including the cities of San Gabriel, Pomona, Redondo Beach, Pasadena,
Long Beach, East Los Angeles, Topanga, Pacific Palisades, Universal
City, Malibu, Van Nuys, Glendale, Culver City, Torrance, Woodland
Hills, Malibu Lake, Westlake Village, Norwalk, LAX, Sunland, Malibu
Bowl, Hollywood, Beverly Hills, Downey, Chatsworth, La Canada
Flintridge, Santa Monica, Northridge, Rancho Palos Verdes, El Monte,
Burbank, and Compton
1155 AM PDT Mon Sep 7 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 8 PM PDT THURSDAY...
* WHAT...Temperatures between 85 and 105 expected. 10 to 15 degrees
above normal.
* WHERE...Calabasas and Agoura Hills, Eastern San Fernando Valley,
Eastern Santa Monica Mountains Recreational Area, Los Angeles
County Beaches, Los Angeles County Inland Coast including Downtown
Los Angeles, Los Angeles County San Gabriel Valley, Malibu Coast,
Palos Verdes Hills, Western San Fernando Valley, and Western Santa
Monica Mountains Recreational Area
* WHEN...From 10 AM Tuesday to 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Humid conditions will add to heat discomfort.
Heat peaking on Wednesday for most areas. Chance for Heat
Advisories to be extended into Friday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
1109 AM PDT Mon Sep 7 2026
CAZ048-080515-
/O.NEW.KSGX.HT.Y.0011.260908T1700Z-260911T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of San Bernardino, Riverside, Corona, Ontario,
Fontana, Moreno Valley, and Rancho Cucamonga
1109 AM PDT Mon Sep 7 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM TUESDAY TO 8 PM PDT THURSDAY...
* WHAT...High temperatures in the upper 90s to 103 degrees expected
overnight low temperatures in the mid-70s.
* WHERE...San Bernardino and Riverside County Valleys-The Inland
Empire.
* WHEN...From 10 AM Tuesday to 8 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Moderate to locally major HeatRisk. Elevated
low temperatures 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
1057 AM PDT Mon Sep 7 2026
CAZ300>317-319-321-080200-
/O.NEW.KHNX.HT.Y.0006.260909T1700Z-260911T0500Z/
West Side Mountains north of 198-Los Banos - Dos Palos-Merced -
Madera - Mendota-Planada - Le Grand - Snelling-Coalinga - Avenal-
West Side of Fresno and Kings Counties-Caruthers - San Joaquin -
Selma-Fresno-Clovis-West Side Mountains South of 198-Buttonwillow
- Lost Hills - I5-Delano-Wasco-Shafter-Hanford - Corcoran -
Lemoore-Visalia - Porterville - Reedley-Buena Vista-Bakersfield-
Southeast San Joaquin Valley-South End San Joaquin Valley-
Mariposa Madera Foothills-Fresno-Tulare Foothills-South End
Sierra Foothills-
Including the cities of Wasco, Porterville, Merced, Lemoore, Atwater,
Sanger, Lost Hills, Madera, Mariposa, Buttonwillow, Selma, Millerton
Lake, El Portal, Lamont, Hanford, Visalia, Bakersfield, Arvin,
Lemoore Station, Kettleman City, Coalinga, Los Banos, Lake Mcclure,
Planada, Kingsburg, Kerman, Corcoran, Blackwells Corner, Delano,
Goshen, McKittrick, Five Points, Taft, Avenal, Le Grand, Tulare,
Richgrove, San Luis Reservoir, Alpaugh, Shafter, Fresno, and Parlier
1057 AM PDT Mon Sep 7 2026
...HEAT ADVISORY IN EFFECT FROM 10 AM WEDNESDAY TO 10 PM PDT
THURSDAY...
* WHAT...High temperatures up to 102 and morning lows up to 75
expected. Widespread Moderate HeatRisk will be present with areas
of Major HeatRisk in the foothills where the thermal belt is
strongest and in urban areas.
* WHERE...The San Joaquin Valley, Sierra Nevada Foothills, and West
Side Hills along the Coastal Range.
* WHEN...From 10 AM Wednesday to 10 PM PDT Thursday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially
those without effective cooling and/or adequate hydration.
* ADDITIONAL DETAILS...Little to no relief at night in areas of Major
HeatRisk. Air conditioning is necessary; fans and open windows at
night will not be enough.
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.
&&
$$
SM
Coastal Flood Advisory
Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
212 PM PDT Mon Sep 7 2026
CAZ087-354-362-366-082130-
/O.CON.KLOX.CF.Y.0006.000000T0000Z-260909T0600Z/
/O.CON.KLOX.SU.Y.0017.000000T0000Z-260909T0600Z/
Catalina and Santa Barbara Islands-Ventura County Beaches-
Malibu Coast-Los Angeles County Beaches-
212 PM PDT Mon Sep 7 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY...
* WHAT...For the Coastal Flood Advisory, moderate coastal
flooding expected. For the High Surf Advisory, large breaking
waves of 5 to 8 feet with local sets to 12 feet and dangerous
and potentially life threatening rip currents, largest on
south- facing shores.
* WHERE...Catalina and Santa Barbara Islands, Ventura County
Beaches, Malibu Coast and Los Angeles County Beaches.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...There is an increased risk for ocean drowning. Rip
currents will be widespread and very strong, potentially pulling
swimmers and surfers out to sea. Large breaking waves can cause
injury, wash people off beaches and rocks, and capsize small
boats near shore. Significant beach erosion will occur. Flooding
of sea water is likely, around the time of high tide, over
vulnerable low-lying coastal areas such as parking lots,
beaches, walkways, and low-lying roads. Of particular concern
will be the Alamitos Peninsula area in Long Beach where coastal
flooding will potentially cause local damage to structures near
time of high tides. Other areas that will be susceptible to
coastal flooding during the next couple of days include Catalina
Island, and Oxnard to Malibu (including Point Mugu).
* ADDITIONAL DETAILS...High tides will occur around 7 feet at 7pm today
and 7.2 feet at 8pm on Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water due to dangerous surf conditions, or stay
near occupied lifeguard towers. Rock jetties can be deadly in
such conditions, stay off the rocks. Follow advice from local
officials. Do NOT drive around barricades or through water of
unknown depth.
&&
$$
High Surf Advisory
Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
212 PM PDT Mon Sep 7 2026
CAZ087-354-362-366-082130-
/O.CON.KLOX.CF.Y.0006.000000T0000Z-260909T0600Z/
/O.CON.KLOX.SU.Y.0017.000000T0000Z-260909T0600Z/
Catalina and Santa Barbara Islands-Ventura County Beaches-
Malibu Coast-Los Angeles County Beaches-
212 PM PDT Mon Sep 7 2026
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...
...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT TUESDAY...
* WHAT...For the Coastal Flood Advisory, moderate coastal
flooding expected. For the High Surf Advisory, large breaking
waves of 5 to 8 feet with local sets to 12 feet and dangerous
and potentially life threatening rip currents, largest on
south- facing shores.
* WHERE...Catalina and Santa Barbara Islands, Ventura County
Beaches, Malibu Coast and Los Angeles County Beaches.
* WHEN...Until 11 PM PDT Tuesday.
* IMPACTS...There is an increased risk for ocean drowning. Rip
currents will be widespread and very strong, potentially pulling
swimmers and surfers out to sea. Large breaking waves can cause
injury, wash people off beaches and rocks, and capsize small
boats near shore. Significant beach erosion will occur. Flooding
of sea water is likely, around the time of high tide, over
vulnerable low-lying coastal areas such as parking lots,
beaches, walkways, and low-lying roads. Of particular concern
will be the Alamitos Peninsula area in Long Beach where coastal
flooding will potentially cause local damage to structures near
time of high tides. Other areas that will be susceptible to
coastal flooding during the next couple of days include Catalina
Island, and Oxnard to Malibu (including Point Mugu).
* ADDITIONAL DETAILS...High tides will occur around 7 feet at 7pm today
and 7.2 feet at 8pm on Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water due to dangerous surf conditions, or stay
near occupied lifeguard towers. Rock jetties can be deadly in
such conditions, stay off the rocks. Follow advice from local
officials. Do NOT drive around barricades or through water of
unknown depth.
&&
$$
Marine Weather Statement
Marine Weather Statement
National Weather Service Los Angeles/Oxnard CA
651 AM PDT Mon Sep 7 2026
PZZ655-676-080000-
Inner waters from Point Mugu to San Mateo Pt. CA including Santa
Catalina and Anacapa Islands-
Outer waters from Santa Cruz Island to San Clemente Island to
60 NM offshore including San Nicolas and Santa Barbara Islands-
651 AM PDT Mon Sep 7 2026
Tropical moisture will continue to stream over the area and bring
a slight chance of thunderstorms to the coastal waters. Any
thunderstorm that forms will be capable of producing locally gale
force winds and rough seas, dangerous lightning, and brief heavy
rainfall with reduced visibility.
$$
