SevereExtreme heatends 2026-10-09
Extreme Heat Warning · Orange County Inland
Extreme Heat Warning issued October 3 at 9:40PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · Orange County Coastal
Extreme Heat Warning issued October 3 at 9:40PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · San Bernardino and Riverside County Valleys-The Inland Empire
Extreme Heat Warning issued October 3 at 9:40PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · San Diego County Coastal Areas
Extreme Heat Warning issued October 3 at 9:40PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · San Diego County Inland Valleys
Extreme Heat Warning issued October 3 at 9:40PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · Santa Ana Mountains and Foothills
Extreme Heat Warning issued October 3 at 9:40PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · Cuyama 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; Santa Cruz and Anacapa Islands
Extreme Heat Warning issued October 3 at 12:15PM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
SevereExtreme heatends 2026-10-09
Extreme Heat Warning · Catalina and Santa Barbara Islands; 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
Extreme Heat Warning issued October 3 at 12:15PM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
ModerateAir qualityends in 22 h
Air Quality Alert · Interstate 5 Corridor; Santa Clarita Valley; Santa Susana Mountains; Western San Gabriel Mountains and Highway 14 Corridor
Air Quality Alert issued October 3 at 8:35PM PDT by NWS Los Angeles/Oxnard CA
What to do
To protect your health, if you smell or see smoke: * Remain indoors with windows and doors closed * Avoid intense outdoor physical activity * Run your air conditioner and/or an air purifier * If you must be outdoors, keep the time brief and wear a well- fitting N-95 mask * Do not use whole house fans or swamp coolers that bring in outside air if you have other methods to stay cool * Avoid other sources of pollution such as fireplaces, candles, incense, grilling, and gasoline-powered lawn and ga
ModerateExtreme heatends 2026-10-08
Heat Advisory · Sonoma Coastal Range; North Bay Interior Mountains; North Bay Interior Valleys; San Francisco Bay Shoreline; East Bay Interior Valleys; Santa Cruz Mountains; Santa Clara Valley Including San Jose; Eastern Santa Clara Hills; East Bay Hills; Southern Salinas Valley/Arroyo Seco and Lake San Antonio; Santa Lucia Mountains and Los Padres National Forest; Mountains Of San Benito County And Interior Monterey County Including Pinnacles National Park
Heat Advisory issued October 3 at 7:48PM PDT until October 7 at 10:00PM PDT by NWS San Francisco CA
What to do
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in
ModerateExtreme heatends in 24 h
Heat Advisory · Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Southern Monterey Bay and Big Sur Coast
Heat Advisory issued October 3 at 7:48PM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA
What to do
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in
ModerateExtreme heatends in 24 h
Heat Advisory · San Francisco; Marin Coastal Range; Northern Salinas Valley/Hollister Valley and Carmel Valley; Northern Monterey Bay
Heat Advisory issued October 3 at 7:48PM PDT until October 4 at 10:00PM PDT by NWS San Francisco CA
What to do
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in
ModerateExtreme heatends 2026-10-08
Heat Advisory · 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; Mariposa-Madera Lower Sierra; Fresno-Tulare Foothills; Fresno-Tulare Lower Sierra; South End Sierra Foothills; Sou
Heat Advisory issued October 3 at 5:34PM PDT until October 7 at 11:00PM PDT by NWS Hanford CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
ModerateExtreme heatends 2026-10-08
Heat Advisory · Western Shasta County Foothills Between 1000-3000 ft; South-Central Shasta County Including Redding Metro; Eastern Shasta County Foothills Between 1000-3000 ft; Sierra Nevada of Tehama-Butte-Plumas Counties Between 1000-3000 ft; Northern Motherlode Between 1000-3000 ft; Central Motherlode Between 1000-3000 ft; Southern Motherlode Between 1000-3000 ft; Western Tehama County Foothills Between 1000-3000 ft; Northern Sacramento Valley in Tehama County; Central Glenn County Including Interstate 5; Eastern Glenn County; Butte County Below 1000 ft; Western Glenn and Colusa County Foothills Between 10
Heat Advisory issued October 3 at 2:14PM PDT until October 7 at 10:00PM PDT by NWS Sacramento CA
What to do
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.
ModerateExtreme heatends in 25 h
Heat Advisory · Southwestern Interior Mendocino; Southeastern Interior Mendocino; Western Lake; Southwestern Lake; Eastern Lake
Heat Advisory issued October 3 at 1:43PM PDT until October 4 at 11:00PM PDT by NWS Eureka CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
ModerateExtreme heatends 2026-10-08
Heat Advisory · 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 Inland Central Coast; Santa Ynez Valley
Heat Advisory issued October 3 at 12:15PM PDT until October 7 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
What to do
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
ModerateAir qualityends in 2 h
Air Quality Alert · Imperial County Southwest; Imperial County Southeast; Imperial County West; Imperial Valley
Air Quality Alert issued October 2 at 1:42PM MST by NWS Phoenix AZ
What to do
To protect your health, check air quality levels and act as needed: * When Air Quality Index (AQI) levels are "Unhealthy for Sensitive Groups" (orange), sensitive groups as specified above should limit extended or intense outdoor activity. * When AQI is "Unhealthy" (red), everyone may experience health impacts. Sensitive groups should avoid extended time outdoors. * When AQI is "Very Unhealthy" (purple), sensitive groups should avoid all outdoor physical activity. Everyone else should avoid ext
MinorEarthquakesends in 9 h
Earthquake M2.6 · 58 km NNW of Rachel, Nevada
M 2.7 - 58 km NNW of Rachel, Nevada
MinorEarthquakesends in 2 h
Earthquake M2.9 · 10 km WSW of South Lake Tahoe, CA
M 2.9 - 10 km WSW of South Lake Tahoe, CA
