Extreme Heat Warning
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
940 PM PDT Sun Aug 23 2026
CAZ061-062-065-241315-
/O.CON.KSGX.XH.W.0008.000000T0000Z-260829T0300Z/
Coachella Valley-San Diego County Deserts-San Gorgonio Pass near
Banning-
Including the cities of Palm Springs, La Quinta, Palm Desert,
Palm Desert Country, Coachella, Borrego Springs, Cathedral City,
and Indio
940 PM PDT Sun Aug 23 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT FRIDAY...
* WHAT...Dangerously hot conditions with temperatures of 110 to 117.
* WHERE...Coachella Valley, San Diego County Deserts, and San
Gorgonio Pass near Banning.
* WHEN...Until 8 PM PDT Friday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Overnight temperatures 5 to 8 degrees above
normal will limit 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
436 PM PDT Sun Aug 23 2026
CAZ337>339-240900-
/O.NEW.KHNX.XH.W.0003.260824T1200Z-260827T0600Z/
Indian Wells Valley-Mojave Desert Slopes-Mojave Desert-
Including the cities of Edwards AFB, Inyokern, California City,
Rosamond, Mojave, Randsburg, and Ridgecrest
436 PM PDT Sun Aug 23 2026
...EXTREME HEAT WARNING IN EFFECT FROM 5 AM MONDAY TO 11 PM PDT
WEDNESDAY...
* WHAT...Dangerously hot conditions with high temperatures up to 108
expected. Morning low temperatures between 75 and 80 degrees will
provide little relief at night.
* WHERE...Indian Wells Valley, Mojave Desert, and Mojave Desert
Slopes.
* WHEN...From 5 AM Monday to 11 PM PDT Wednesday.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
Stay cool, stay hydrated, stay informed.
Monitor the latest forecasts and warnings for updates.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1023 AM MST Sun Aug 23 2026
AZZ530>533-535-536-CAZ562-565>567-569-570-241000-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260830T0300Z/
Parker Valley-Kofa-Yuma-Central La Paz-Southeast Yuma County-Gila
River Valley-Imperial County Southwest-Imperial County Southeast-
Imperial County West-Imperial Valley-Palo Verde Valley-Chuckwalla
Valley-
Including the cities of Quartzsite, Winona, Vicksburg Junction,
Ocotillo, Brenda, Palo Verde, Winterhaven, Calexico, Mountain Spring,
Ehrenberg, Fortuna Foothills, Vicksburg, Coyote Wells, Martinez Lake,
Alamorio, Salome, El Centro, Harcuvar, Coolidge Springs, Midland,
Brawley, Salton City, Plaster City, Palm Canyon, Ligurta, Blythe,
Ripley, Parker, and Yuma
1023 AM MST Sun Aug 23 2026 /1023 AM PDT Sun Aug 23 2026/
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST /8 PM PDT/
SATURDAY...
* WHAT...Dangerously hot and humid conditions. Afternoon temperatures
106 to 118 expected. Major to Extreme Heat Risk.
* WHERE...Portions of southwest Arizona and southeast California.
* WHEN...Until 8 PM MST /8 PM PDT/ Saturday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Phoenix AZ
1023 AM MST Sun Aug 23 2026
AZZ534-538-539-541-545-547-549-552>555-559-241000-
/O.CON.KPSR.XH.W.0008.000000T0000Z-260830T0300Z/
Aguila Valley-Tonopah Desert-Gila Bend-Cave Creek/New River-New
River Mesa-Rio Verde/Salt River-Fountain Hills/East Mesa-Superior-
Northwest Pinal County-West Pinal County-Apache Junction/Gold
Canyon-Sonoran Desert Natl Monument-
Including the cities of Gladden, Sentinel, Tonopah, Kaka,
Wintersburg, Fountain Hills, Scottsdale, Superior, Tortilla Flat,
Arlington, Hassayampa, Wickenburg, Aguila, Apache Junction, Coolidge,
Casa Grande, Florence, Cactus Forest, and Gila Bend
1023 AM MST Sun Aug 23 2026
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SATURDAY...
* WHAT...Dangerously hot conditions. Afternoon temperatures 105 to
116 expected. Major to Extreme Heat Risk.
* WHERE...Aguila Valley, Apache Junction/Gold Canyon, Cave Creek/New
River, Fountain Hills/East Mesa, Gila Bend, Northwest Pinal County,
Sonoran Desert Natl Monument, Tonopah Desert, New River Mesa, Rio
Verde/Salt River, and Superior.
* WHEN...Until 8 PM MST Saturday.
* 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.
* ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 to find a free
cooling center, transportation, water and more.
https://www.maricopa.gov/heat
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.
&&
$$
Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
940 PM PDT Sun Aug 23 2026
CAZ048-050-056>058-554-241315-
/O.CON.KSGX.HT.Y.0010.000000T0000Z-260825T1700Z/
/O.CON.KSGX.XH.A.0006.260825T1700Z-260829T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-San
Diego County Valleys-Riverside County Mountains-Santa Ana
Mountains and Foothills-San Diego County Mountains-Orange County
Inland Areas-
Including the cities of El Cajon, La Mesa, Idyllwild-Pine Cove,
Corona, Garden Grove, Julian, Rancho Cucamonga, San Bernardino,
Riverside, Ontario, Mission Viejo, Anaheim, Fontana, Escondido,
Irvine, Santa Ana, Fullerton, Poway, Santee, Orange, San Marcos,
Moreno Valley, and Pine Valley
940 PM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...Temperatures 90 to 100 for Inland Orange County, 90 to 102
for the San Diego County Valleys, 100 to 108 for the Inland Empire
and 89 to 101 in the mountains.
* WHERE...Orange County Inland Areas, Riverside County Mountains,
San Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Mountains, San Diego County Valleys, and Santa Ana
Mountains and Foothills.
* WHEN...For the Heat Advisory, until 10 AM PDT Tuesday. For the
Extreme Heat Watch, from Tuesday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit relief from the heat. Increasing temperatures into the
middle of next week will increase the threat of heat-related
illness across populations.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
940 PM PDT Sun Aug 23 2026
CAZ055-241315-
/O.CON.KSGX.HT.Y.0010.000000T0000Z-260825T1700Z/
/O.CON.KSGX.XH.A.0006.260825T1700Z-260829T0300Z/
San Bernardino County Mountains-
Including the cities of Big Bear City, Lake Arrowhead, Running
Springs, Big Bear Lake, Crestline, and Wrightwood
940 PM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...Temperatures in the mid to upper 90s below 5000 ft MSL.
* WHERE...San Bernardino County Mountains.
* WHEN...For the Heat Advisory, until 10 AM PDT Tuesday. For the
Extreme Heat Watch, from Tuesday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
436 PM PDT Sun Aug 23 2026
CAZ304>316-240900-
/O.NEW.KHNX.HT.Y.0005.260824T1200Z-260827T0600Z/
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-
Including the cities of Kingsburg, Tulare, Coalinga, Hanford,
Blackwells Corner, Alpaugh, Wasco, McKittrick, Fresno, Richgrove,
Lost Hills, Lemoore Station, Parlier, Lemoore, Visalia, Five Points,
Corcoran, Sanger, Taft, Buttonwillow, Bakersfield, Lamont, Arvin,
Kerman, Goshen, Shafter, Delano, Porterville, Kettleman City, Selma,
and Avenal
436 PM PDT Sun Aug 23 2026
...HEAT ADVISORY IN EFFECT FROM 5 AM MONDAY TO 11 PM PDT WEDNESDAY...
* WHAT...High temperatures up to 104 expected.
* WHERE...Southern San Joaquin Valley and West Side Hills of the
Coastal Range.
* WHEN...From 5 AM Monday to 11 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
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.
&&
$$
SM
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1206 AM PDT Sun Aug 23 2026
CAZ088-351>353-356>358-369>376-378>380-548-251700-
/O.CON.KLOX.HT.Y.0014.260823T1700Z-260825T1700Z/
/O.CON.KLOX.XH.A.0005.260825T1700Z-260829T0300Z/
Santa Clarita Valley-Santa Ynez Mountains Western Range-Santa
Ynez Mountains Eastern Range-Santa Barbara County Interior
Mountains-Lake Casitas-Ojai Valley-Central Ventura County Valleys-
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-
Southern Ventura County Mountains-Interstate 5 Corridor-Western
San Gabriel Mountains and Highway 14 Corridor-Eastern San Gabriel
Mountains-Los Angeles County San Gabriel Valley-
Including the cities of Northridge, Warm Springs, San Rafael
Mountain, Westlake Village, San Gabriel, Sunland, Santa Clarita, San
Marcos Pass, Tejon Pass, Ojai, Topatopa Mountains, El Monte, Oak
View, Meiners Oaks, Simi Valley, The Angeles Crest Highway, Santa
Paula, Fillmore, Pasadena, Big Pine Mountain, Mount Baldy, Piru,
Woodland Hills, Malibu Bowl, Chatsworth, Figueroa Mountain, Glendale,
Pomona, Matilija, La Canada Flintridge, Malibu Lake, Van Nuys, Oat
Mountain, Gorman, East Los Angeles, Montecito Hills, Newhall,
Universal City, Rose Valley, Thousand Oaks, Newbury Park, Moorpark,
Burbank, Pyramid Lake, Acton, Topanga, Mill Creek, Mount Wilson,
Wrightwood, Lake Castaic, and Valencia
1206 AM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM
PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...For the Heat Advisory, temperatures up to 107 expected. For
the Extreme Heat Watch, dangerously hot conditions with
temperatures up to 112 possible.
* WHERE...A portion of southwest California.
* WHEN...For the Heat Advisory, from 10 AM this morning to 10 AM PDT
Tuesday. For the Extreme Heat Watch, from Tuesday morning through
Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
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
1206 AM PDT Sun Aug 23 2026
CAZ087-349-350-354-355-362-366>368-251700-
/O.CON.KLOX.HT.Y.0014.260823T1700Z-260825T1700Z/
/O.CON.KLOX.XH.A.0005.260825T1700Z-260829T0300Z/
Catalina and Santa Barbara Islands-Santa Barbara County
Southwestern Coast-Santa Barbara County Southeastern Coast-
Ventura County Beaches-Ventura County Inland Coast-Malibu Coast-
Los Angeles County Beaches-Palos Verdes Hills-Los Angeles County
Inland Coast including Downtown Los Angeles-
Including the cities of Port Hueneme, East Ventura, Jalama Beach,
Goleta, Oxnard, El Capitan State Beach, Compton, Rancho Palos Verdes,
LAX, Norwalk, Ventura, Pacific Palisades, Long Beach, Hollywood,
Montecito, Refugio State Beach, Santa Monica, Torrance, Camarillo,
Carpinteria, Beverly Hills, Culver City, Santa Barbara, Point Mugu,
Downey, Malibu, Redondo Beach, Gaviota, and Avalon
1206 AM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM
PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...For the Heat Advisory, temperatures up to 94 expected. For
the Extreme Heat Watch, dangerously hot conditions with
temperatures up to 100 possible.
* WHERE...Catalina and Santa Barbara Islands, Los Angeles County
Beaches, Los Angeles County Inland Coast including Downtown Los
Angeles, Malibu Coast, Palos Verdes Hills, Santa Barbara County
Southeastern Coast, Santa Barbara County Southwestern Coast,
Ventura County Beaches, and Ventura County Inland Coast.
* WHEN...For the Heat Advisory, from 10 AM this morning to 10 AM PDT
Tuesday. For the Extreme Heat Watch, from Tuesday morning through
Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.
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.
&&
$$
Dust Advisory
DUST ADVISORY
NWS PHOENIX AZ
1033 PM MST SUN AUG 23 2026
AZC013-240600-
/O.CON.KPSR.DS.Y.0043.000000T0000Z-260824T0600Z/
1033 PM MST SUN AUG 23 2026
Maricopa County-
...A DUST ADVISORY REMAINS IN EFFECT UNTIL 1100 PM MST FOR MARICOPA
COUNTY...
At 1033 PM MST, a wall of dust was along a line extending from near
Tonopah to 8 miles southwest of Wittmann to Circle City to near
Humbug Bay, and is moving at 20 mph.
HAZARD...Less than a mile visibility with strong wind in excess of
40 mph.
SOURCE...Doppler radar.
IMPACT...Hazardous travel.
This includes US Highway 60 between mile markers 80 and 116.
Locations impacted include...
Wickenburg and Aguila.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Blowing dust brings reduced visibility, leading to dangerous driving
conditions. If driving, avoid blowing dust if possible. If caught in
dense blowing dust, pull off the road, turn off your lights and keep
your foot off the brake.
Motorists should not drive into an area of blowing dust. PULL ASIDE
STAY ALIVE!
LAT...LON 3399 11272 3398 11266 3396 11258 3389 11271
3363 11294 3400 11333 3401 11313 3400 11273
3399 11272
$$
Extreme Heat Watch
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
940 PM PDT Sun Aug 23 2026
CAZ048-050-056>058-554-241315-
/O.CON.KSGX.HT.Y.0010.000000T0000Z-260825T1700Z/
/O.CON.KSGX.XH.A.0006.260825T1700Z-260829T0300Z/
San Bernardino and Riverside County Valleys-The Inland Empire-San
Diego County Valleys-Riverside County Mountains-Santa Ana
Mountains and Foothills-San Diego County Mountains-Orange County
Inland Areas-
Including the cities of El Cajon, La Mesa, Idyllwild-Pine Cove,
Corona, Garden Grove, Julian, Rancho Cucamonga, San Bernardino,
Riverside, Ontario, Mission Viejo, Anaheim, Fontana, Escondido,
Irvine, Santa Ana, Fullerton, Poway, Santee, Orange, San Marcos,
Moreno Valley, and Pine Valley
940 PM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...Temperatures 90 to 100 for Inland Orange County, 90 to 102
for the San Diego County Valleys, 100 to 108 for the Inland Empire
and 89 to 101 in the mountains.
* WHERE...Orange County Inland Areas, Riverside County Mountains,
San Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Mountains, San Diego County Valleys, and Santa Ana
Mountains and Foothills.
* WHEN...For the Heat Advisory, until 10 AM PDT Tuesday. For the
Extreme Heat Watch, from Tuesday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit relief from the heat. Increasing temperatures into the
middle of next week will increase the threat of heat-related
illness across populations.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
940 PM PDT Sun Aug 23 2026
CAZ055-241315-
/O.CON.KSGX.HT.Y.0010.000000T0000Z-260825T1700Z/
/O.CON.KSGX.XH.A.0006.260825T1700Z-260829T0300Z/
San Bernardino County Mountains-
Including the cities of Big Bear City, Lake Arrowhead, Running
Springs, Big Bear Lake, Crestline, and Wrightwood
940 PM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...Temperatures in the mid to upper 90s below 5000 ft MSL.
* WHERE...San Bernardino County Mountains.
* WHEN...For the Heat Advisory, until 10 AM PDT Tuesday. For the
Extreme Heat Watch, from Tuesday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
940 PM PDT Sun Aug 23 2026
CAZ060-241315-
/O.CON.KSGX.XH.A.0006.260825T1700Z-260829T0300Z/
Apple and Lucerne Valleys-
Including the cities of Hesperia, Victorville, Apple Valley, and
Lucerne Valley
940 PM PDT Sun Aug 23 2026
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...Dangerously hot conditions with temperatures of 101 to 108
possible.
* WHERE...Apple and Lucerne Valleys.
* WHEN...From Tuesday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit 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.
&&
$$
SS
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1206 AM PDT Sun Aug 23 2026
CAZ088-351>353-356>358-369>376-378>380-548-251700-
/O.CON.KLOX.HT.Y.0014.260823T1700Z-260825T1700Z/
/O.CON.KLOX.XH.A.0005.260825T1700Z-260829T0300Z/
Santa Clarita Valley-Santa Ynez Mountains Western Range-Santa
Ynez Mountains Eastern Range-Santa Barbara County Interior
Mountains-Lake Casitas-Ojai Valley-Central Ventura County Valleys-
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-
Southern Ventura County Mountains-Interstate 5 Corridor-Western
San Gabriel Mountains and Highway 14 Corridor-Eastern San Gabriel
Mountains-Los Angeles County San Gabriel Valley-
Including the cities of Northridge, Warm Springs, San Rafael
Mountain, Westlake Village, San Gabriel, Sunland, Santa Clarita, San
Marcos Pass, Tejon Pass, Ojai, Topatopa Mountains, El Monte, Oak
View, Meiners Oaks, Simi Valley, The Angeles Crest Highway, Santa
Paula, Fillmore, Pasadena, Big Pine Mountain, Mount Baldy, Piru,
Woodland Hills, Malibu Bowl, Chatsworth, Figueroa Mountain, Glendale,
Pomona, Matilija, La Canada Flintridge, Malibu Lake, Van Nuys, Oat
Mountain, Gorman, East Los Angeles, Montecito Hills, Newhall,
Universal City, Rose Valley, Thousand Oaks, Newbury Park, Moorpark,
Burbank, Pyramid Lake, Acton, Topanga, Mill Creek, Mount Wilson,
Wrightwood, Lake Castaic, and Valencia
1206 AM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM
PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...For the Heat Advisory, temperatures up to 107 expected. For
the Extreme Heat Watch, dangerously hot conditions with
temperatures up to 112 possible.
* WHERE...A portion of southwest California.
* WHEN...For the Heat Advisory, from 10 AM this morning to 10 AM PDT
Tuesday. For the Extreme Heat Watch, from Tuesday morning through
Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
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
1206 AM PDT Sun Aug 23 2026
CAZ087-349-350-354-355-362-366>368-251700-
/O.CON.KLOX.HT.Y.0014.260823T1700Z-260825T1700Z/
/O.CON.KLOX.XH.A.0005.260825T1700Z-260829T0300Z/
Catalina and Santa Barbara Islands-Santa Barbara County
Southwestern Coast-Santa Barbara County Southeastern Coast-
Ventura County Beaches-Ventura County Inland Coast-Malibu Coast-
Los Angeles County Beaches-Palos Verdes Hills-Los Angeles County
Inland Coast including Downtown Los Angeles-
Including the cities of Port Hueneme, East Ventura, Jalama Beach,
Goleta, Oxnard, El Capitan State Beach, Compton, Rancho Palos Verdes,
LAX, Norwalk, Ventura, Pacific Palisades, Long Beach, Hollywood,
Montecito, Refugio State Beach, Santa Monica, Torrance, Camarillo,
Carpinteria, Beverly Hills, Culver City, Santa Barbara, Point Mugu,
Downey, Malibu, Redondo Beach, Gaviota, and Avalon
1206 AM PDT Sun Aug 23 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 10 AM
PDT TUESDAY...
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...For the Heat Advisory, temperatures up to 94 expected. For
the Extreme Heat Watch, dangerously hot conditions with
temperatures up to 100 possible.
* WHERE...Catalina and Santa Barbara Islands, Los Angeles County
Beaches, Los Angeles County Inland Coast including Downtown Los
Angeles, Malibu Coast, Palos Verdes Hills, Santa Barbara County
Southeastern Coast, Santa Barbara County Southwestern Coast,
Ventura County Beaches, and Ventura County Inland Coast.
* WHEN...For the Heat Advisory, from 10 AM this morning to 10 AM PDT
Tuesday. For the Extreme Heat Watch, from Tuesday morning through
Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.
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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1206 AM PDT Sun Aug 23 2026
CAZ381>383-251700-
/O.CON.KLOX.XH.A.0005.260825T1700Z-260829T0300Z/
Western Antelope Valley Foothills-Eastern Antelope Valley
Foothills-Antelope Valley-
Including the cities of Elizabeth Lake, Llano, Valyermo, Lake Los
Angeles, Palmdale, Lancaster, Lake Palmdale, and Pearblossom
1206 AM PDT Sun Aug 23 2026
...EXTREME HEAT WATCH REMAINS IN EFFECT FROM TUESDAY MORNING THROUGH
FRIDAY EVENING...
* WHAT...Dangerously hot conditions with temperatures up to 112
possible.
* WHERE...Antelope Valley, Eastern Antelope Valley Foothills, and
Western Antelope Valley Foothills.
* WHEN...From Tuesday morning through Friday evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
ASR
Air Quality Alert
AZC013-250400-
Air Quality Alert
Relayed by National Weather Service Phoenix AZ
745 AM MST Sun Aug 23 2026
...OZONE HIGH POLLUTION ADVISORY FOR MARICOPA COUNTY INCLUDING THE
PHOENIX METRO AREA THROUGH MONDAY...
The Arizona Department of Environmental Quality (ADEQ) has issued an
Ozone High Pollution Advisory for the Phoenix Metro Area through
Monday.
This means that forecast weather conditions combined with existing
ozone levels are expected to result in local maximum 8-hour ozone
concentrations that pose a health risk. Adverse health effects
increase as air quality deteriorates.
Ozone is an air contaminant which can cause breathing difficulties
for children, older adults, as well as persons with respiratory
problems. A decrease in physical activity is recommended.
You are urged to car pool, telecommute or use mass transit.
The use of gasoline-powered equipment should be reduced or done late
in the day.
For details on this High Pollution Advisory, visit the ADEQ internet
site at www.azdeq.gov/forecast/phoenix or call 602-771-2300.
$$
