Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1032 AM PDT Mon Sep 1 2025
CAZ038-344-345-353-020545-
/O.CON.KLOX.HT.Y.0007.000000T0000Z-250903T0100Z/
Cuyama Valley-San Luis Obispo County Interior Valleys-San Luis
Obispo County Mountains-Santa Barbara County Interior Mountains-
Including the cities of Shandon, Big Pine Mountain, Caliente
Range, Creston, Figueroa Mountain, La Panza Range, Santa
Margarita Lake, Carrizo Plain, New Cuyama, and San Rafael
Mountain
1032 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...
* WHAT...Hot daytime conditions with high temperatures of 95 to 105
degrees common, and warm overnight conditions.
* WHERE...Cuyama Valley, San Luis Obispo County Interior Valleys,
San Luis Obispo County Mountains, and Santa Barbara County
Interior Mountains.
* WHEN...Until 6 PM PDT Tuesday.
* 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...This advisory may need to be extended through
Wednesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Limit strenuous outdoor activities (like hiking) to the early
morning hours. Stay in air conditioned spaces during the heat of the
day. Check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1032 AM PDT Mon Sep 1 2025
CAZ088-356>358-368>376-378-379-548-020545-
/O.CON.KLOX.HT.Y.0008.000000T0000Z-250903T0100Z/
Santa Clarita Valley-Lake Casitas-Ojai Valley-Central Ventura
County Valleys-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-
Southern Ventura County Mountains-Interstate 5 Corridor-Western
San Gabriel Mountains and Highway 14 Corridor-Los Angeles County
San Gabriel Valley-
Including the cities of Santa Paula, Malibu Lake, Northridge,
Rose Valley, El Monte, Topanga, Pasadena, Newbury Park, Lake
Castaic, Piru, Woodland Hills, Valencia, Culver City, Universal
City, Matilija, Simi Valley, East Los Angeles, Van Nuys, Newhall,
Mill Creek, Fillmore, Norwalk, Westlake Village, Meiners Oaks,
Chatsworth, Pomona, Gorman, Thousand Oaks, La Canada Flintridge,
Beverly Hills, Compton, Tejon Pass, Hollywood, Oat Mountain,
Glendale, Downey, Moorpark, Topatopa Mountains, Pyramid Lake,
Santa Clarita, Acton, Burbank, Ojai, Warm Springs, Oak View, San
Gabriel, Sunland, and Malibu Bowl
1032 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...
* WHAT...Hot daytime conditions with high temperatures of 96 to 107
degrees common, and warm overnight conditions.
* WHERE...A portion of southwest California.
* WHEN...Until 6 PM PDT Tuesday.
* 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...This advisory may need to be extended through
Wednesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Limit strenuous outdoor activities (like hiking) to the early
morning hours. Stay in air conditioned spaces during the heat of the
day. Check up on relatives and neighbors.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1032 AM PDT Mon Sep 1 2025
CAZ352-020545-
/O.CON.KLOX.HT.Y.0008.000000T0000Z-250903T0100Z/
Santa Ynez Mountains Eastern Range-
Including the cities of Montecito Hills
1032 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...
* WHAT...Daytime temperatures up to 95 degrees expected with warm
overnight low temperatures expected.
* WHERE...Santa Ynez Mountains Eastern Range.
* WHEN...Until 6 PM PDT Tuesday.
* 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1032 AM PDT Mon Sep 1 2025
CAZ355-020545-
/O.CON.KLOX.HT.Y.0007.000000T0000Z-250903T0100Z/
Ventura County Inland Coast-
Including the cities of East Ventura and Camarillo
1032 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...
* WHAT...Daytime temperatures 86 TO 93 degrees expected.
* WHERE...Ventura County Inland Coast.
* WHEN...Until 6 PM PDT Tuesday.
* IMPACTS...There is a high risk for heat illness for sensitive
populations including the very young, the very old, those without
air conditioning, and those active outdoors.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1032 AM PDT Mon Sep 1 2025
CAZ377-020545-
/O.CON.KLOX.HT.Y.0008.000000T0000Z-250903T0100Z/
Northern Ventura County Mountains-
Including the cities of Mount Pinos, Lockwood Valley, and Ozena
1032 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PDT TUESDAY...
* WHAT...Hot daytime conditions with highs 93 to 103 expected.
* WHERE...Northern Ventura County Mountains.
* WHEN...Until 6 PM PDT Tuesday.
* 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.
Limit strenuous outdoor activities (like hiking) to the early
morning hours.
&&
$$
Visit us at http://www.weather.gov/LosAngeles
NWS Los Angeles/Oxnard
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
604 AM PDT Mon Sep 1 2025
CAZ300>304-306>314-316-317-319-321-012200-
/O.CON.KHNX.HT.Y.0005.250901T1900Z-250902T0700Z/
West Side Mountains north of 198-Los Banos - Dos Palos-Merced -
Madera - Mendota-Planada - Le Grand - Snelling-Coalinga - Avenal-
Caruthers - San Joaquin - Selma-Fresno-Clovis-West Side Mountains
South of 198-Buttonwillow - Lost Hills - I5-Delano-Wasco-Shafter-
Hanford - Corcoran - Lemoore-Visalia - Porterville - Reedley-
Buena Vista-Bakersfield-South End San Joaquin Valley-Mariposa
Madera Foothills-Fresno-Tulare Foothills-South End Sierra
Foothills-
Including the cities of Alpaugh, Lake Mcclure, Sanger,
Bakersfield, Porterville, Lamont, Blackwells Corner, Coalinga,
Fresno, McKittrick, Kingsburg, Arvin, Millerton Lake, Merced, Le
Grand, Selma, Kerman, El Portal, Delano, San Luis Reservoir,
Planada, Taft, Visalia, Madera, Avenal, Hanford, Corcoran,
Goshen, Lemoore, Los Banos, Parlier, Wasco, Buttonwillow,
Shafter, Lost Hills, Tulare, Mariposa, and Atwater
604 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM NOON TODAY TO MIDNIGHT PDT
TONIGHT...
* WHAT...High temperatures up to 106 expected.
* WHERE...Southeast San Joaquin Valley and West Side of Fresno and
Kings Counties.
* WHEN...From noon today to midnight PDT tonight.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
CMolina
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
604 AM PDT Mon Sep 1 2025
CAZ305-315-012200-
/O.EXA.KHNX.HT.Y.0005.250901T1900Z-250902T0700Z/
West Side of Fresno and Kings Counties-Southeast San Joaquin
Valley-
Including the cities of Lemoore Station, Kettleman City, Five
Points, and Richgrove
604 AM PDT Mon Sep 1 2025
...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO MIDNIGHT PDT TONIGHT...
* WHAT...High temperatures up to 106 expected.
* WHERE...Southeast San Joaquin Valley and West Side of Fresno and
Kings Counties.
* WHEN...From noon today to midnight PDT tonight.
* IMPACTS...Hot temperatures and high humidity 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.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Diego CA
533 AM PDT Mon Sep 1 2025
CAZ048-050-057-554-020100-
/O.CON.KSGX.HT.Y.0006.250901T1700Z-250903T0100Z/
San Bernardino and Riverside County Valleys-The Inland Empire-San
Diego County Valleys-Santa Ana Mountains and Foothills-Orange
County Inland Areas-
Including the cities of San Marcos, Fullerton, Anaheim, Orange,
Fontana, Ontario, Corona, Rancho Cucamonga, Escondido, El Cajon,
La Mesa, Moreno Valley, Irvine, Santee, Poway, Riverside, San
Bernardino, Mission Viejo, Santa Ana, and Garden Grove
533 AM PDT Mon Sep 1 2025
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 6 PM
PDT TUESDAY...
* WHAT...Temperatures exceeding 100 degrees expected.
* WHERE...Orange County Inland Areas, San Bernardino and Riverside
County Valleys-The Inland Empire, San Diego County Valleys, and
Santa Ana Mountains and Foothills.
* WHEN...From 10 AM this morning to 6 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
&&
$$
PS
Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
847 AM PDT Mon Sep 1 2025
PZZ576-020000-
/O.CON.KMTR.SC.Y.0159.000000T0000Z-250902T0400Z/
Waters from Point Pinos to Point Piedras Blancas 10-60 NM-
847 AM PDT Mon Sep 1 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt.
* WHERE...Waters from Point Pinos to Point Piedras Blancas 10-
60 NM.
* WHEN...Until 9 PM PDT this evening.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
Beach Hazards Statement
Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
107 PM PDT Mon Sep 1 2025
CAZ340-346-020600-
/O.CON.KLOX.BH.S.0013.000000T0000Z-250902T0600Z/
San Luis Obispo County Beaches-
Santa Barbara County Central Coast Beaches-
107 PM PDT Mon Sep 1 2025
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
* WHAT...Dangerous rip currents with a combination of a south
swell producing elevated surf of 5 to 7 feet.
* WHERE...San Luis Obispo County Beaches and Santa Barbara
County Central Coast Beaches.
* WHEN...Until 11 PM PDT this evening.
* IMPACTS...There is an increased risk of ocean drowning. Rip
currents can pull swimmers and surfers out to sea. Waves can
wash people off beaches and rocks, and capsize small boats
nearshore.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.
&&
$$
Coastal Hazard Message
National Weather Service Los Angeles/Oxnard CA
107 PM PDT Mon Sep 1 2025
CAZ354-362-366-020600-
/O.CON.KLOX.BH.S.0013.000000T0000Z-250902T0600Z/
Ventura County Beaches-Malibu Coast-Los Angeles County Beaches-
107 PM PDT Mon Sep 1 2025
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
* WHAT...Dangerous rip currents and breaking waves due to a long
period south swell producing elevated surf of 4 to 6 feet,
highest on south-facing beaches.
* WHERE...Ventura County Beaches, Malibu Coast and Los Angeles
County Beaches.
* WHEN...Until 11 PM PDT 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water due to hazardous swimming conditions, or
stay near occupied lifeguard towers. Rock jetties can be deadly
in such conditions, stay off the rocks.
&&
$$
Coastal Hazard Message
National Weather Service San Diego CA
1226 PM PDT Mon Sep 1 2025
CAZ043-552-020600-
/O.CON.KSGX.BH.S.0011.000000T0000Z-250902T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
1226 PM PDT Mon Sep 1 2025
...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
* WHAT...Elevated surf of 3 to 5 feet with sets to 6 feet along
south facing beaches. Strong longshore currents and surf sets up
to 5 feet for all other beaches.
* WHERE...San Diego County Coastal Areas and Orange County
Coastal Areas.
* WHEN...Through this evening.
* IMPACTS...Locally hazardous swimming conditions can be
expected especially in the vicinity of strong rip currents.
* ADDITIONAL DETAILS...The elevated surf is driven by a
southerly swell at 3 feet with a period of 16-17 seconds.
Swell and surf will gradually lower Tuesday.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Remain out of the water to avoid hazardous swimming conditions.
&&
$$
Flood Watch
Flood Watch
National Weather Service Los Angeles/Oxnard CA
1224 PM PDT Mon Sep 1 2025
CAZ379>383-040600-
/O.NEW.KLOX.FA.A.0004.250902T1800Z-250904T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Western San Gabriel Mountains and Highway 14 Corridor-Eastern San
Gabriel Mountains-Western Antelope Valley Foothills-Eastern
Antelope Valley Foothills-Antelope Valley-
Including the cities of Acton, Wrightwood, Lake Palmdale, Llano,
Elizabeth Lake, Pearblossom, The Angeles Crest Highway,
Lancaster, Mount Wilson, Valyermo, Lake Los Angeles, Palmdale,
Mount Baldy, Warm Springs, and Mill Creek
1224 PM PDT Mon Sep 1 2025
...FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY
EVENING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Northeastern Los Angeles County, including the following
areas, Bridge Fire Burn Scar, Antelope Valley, Antelope Valley
Foothills, San Gabriel Mountains, and Highway 14 Corridor.
* WHEN...From late Tuesday morning through Wednesday evening.
* IMPACTS...Flooding from thunderstorms and showers may occur in
poor drainage and urban areas. Peak rain rates may reach 0.5 to
1.0 inch per hour.
* ADDITIONAL DETAILS...
- Increasing moisture and instability combined with slow moving
storms will pose an increased risk of flash flooding. Strong
outflow winds will be possible with thunderstorms, with
locally damaging gusts to 60 mph possible.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
Schoenfeld/Gomberg
Flood Watch
National Weather Service Hanford CA
1211 PM PDT Mon Sep 1 2025
CAZ327>334-337>339-012315-
/O.NEW.KHNX.FA.A.0007.250902T1800Z-250904T0600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Kaiser to Rodgers Ridge-Kings Canyon NP-Grant Grove Area-Sequoia
NP-South End of the Upper Sierra-Kern River Valley-Piute Walker
Basin-Tehachapi-Indian Wells Valley-Mojave Desert Slopes-Mojave
Desert-
Including the cities of Huntington Lake, Lodgepole, Tehachapi,
Lake Isabella, Rosamond, Lake Wishon, Johnsondale, Hume Lake,
Ridgecrest, Edwards AFB, Grant Grove, Shaver Lake, California
City, Kernville, Inyokern, Cedar Grove, Mojave, Randsburg, and
Giant Forest
1211 PM PDT Mon Sep 1 2025
...FLOOD WATCH IN EFFECT FROM TUESDAY MORNING THROUGH WEDNESDAY
EVENING...
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...A portion of central California, including the following
areas, Grant Grove Area, Indian Wells Valley, Kaiser to Rodgers
Ridge, Kern River Valley, Kings Canyon NP, Mojave Desert, Mojave
Desert Slopes, Piute Walker Basin, Sequoia NP, South End of the
Upper Sierra and Tehachapi.
* WHEN...From Tuesday morning through Wednesday evening.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Flooding may occur in poor drainage and urban areas. Low-water
crossings may be flooded.
* ADDITIONAL DETAILS...
- Any slow moving thunderstorms will create heavy rainfall at
times with long periods of rain.
- http://www.weather.gov/safety/flood
PRECAUTIONARY/PREPAREDNESS ACTIONS...
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.
&&
$$
CMolina
Marine Weather Statement
Marine Weather Statement
National Weather Service Los Angeles/Oxnard CA
151 PM PDT Mon Sep 1 2025
PZZ650-655-676-021300-
East Santa Barbara Channel from Pt. Conception to Pt. Mugu CA
including Santa Cruz Island-
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-
151 PM PDT Mon Sep 1 2025
..SLIGHT CHANCE OF SHOWERS AND THUNDERSTORMS OVER THE SOUTHERN
COASTAL WATERS LATER TONIGHT THROUGH TUESDAY MORNING...
There is a slight chance of showers and thunderstorms over
portions of the southern waters from the eastern Santa Barbara
Channel and southward over the waters west of Los Angeles and
Orange Counties later tonight through Tuesday morning.
Showers and thunderstorms can create localized dangerous ocean
conditions with choppy seas, gusty erratic winds, and the
potential for cloud to sea lightning. Boaters should closely
monitor weather conditions and avoid traveling near showers and
thunderstorms.
$$
Ciliberti/Sirard
