Heat Advisory
URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
1147 AM PDT Fri Oct 2 2026
CAZ112-113-118>120-031400-
/O.NEW.KEKA.HT.Y.0006.261003T1800Z-261004T0600Z/
Southwestern Interior Mendocino-Southeastern Interior Mendocino-
Western Lake-Southwestern Lake-Eastern Lake-
Including Hopland, Calpella, Yorkville, Hidden Valley Lake,
Boonville, Talmage, Ukiah, Philo, Clearlake Park, Finley, Upper Lake,
Lakeport, Middletown, Redwood Valley, and Clearlake
1147 AM PDT Fri Oct 2 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM TO 11 PM PDT SATURDAY...
* WHAT...High temperatures up to 101 with overnight temperatures over
65. Moderate to localized high HeatRisk.
* WHERE...Southern Mendocino Interior, and Southern Lake.
* WHEN...From 11 AM to 11 PM PDT Saturday.
* IMPACTS...Moderate to localized high HeatRisk will increase the
potential for 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.
&&
$$
For hazard areas see https://www.weather.gov/wrh/hazards/?wfo=eka
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1116 AM PDT Fri Oct 2 2026
CAZ506-031000-
/O.EXB.KMTR.HT.Y.0014.261003T1800Z-261006T0500Z/
North Bay Interior Valleys-
1116 AM PDT Fri Oct 2 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 10 PM PDT MONDAY...
* WHAT...Temperatures in the middle 90s to near 103 expected. Mild
lows in the upper 60s to middle 70s in the higher elevations will
limit overnight recovery.
* WHERE...North Bay Interior Valleys.
* WHEN...From 11 AM Saturday to 10 PM PDT Monday.
* IMPACTS...This level of heat affects anyone without effective
cooling and/or adequate hydration. Impacts likely in some health
systems, heat-sensitive industries and infrastructure.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Hydration is a critical piece to surviving the heat. Drink water, and
if possible, take water to those who are vulnerable.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to the early
morning or evening. Take action when you experience symptoms of heat
exhaustion and/or heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
1116 AM PDT Fri Oct 2 2026
CAZ503-504-508-510-512>518-031000-
/O.EXT.KMTR.HT.Y.0014.261003T1800Z-261006T0500Z/
Sonoma Coastal Range-North Bay Interior Mountains-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-
1116 AM PDT Fri Oct 2 2026
...HEAT ADVISORY NOW IN EFFECT FROM 11 AM SATURDAY TO 10 PM PDT
MONDAY...
* WHAT...Temperatures in the middle 90s to near 103 expected. Mild
lows in the upper 60s to middle 70s in the higher elevations will
limit overnight recovery.
* WHERE...The East Bay and San Francisco Bay Shoreline, The Santa
Clara Valley and Eastern Hills, Western Sonoma County Hills, The
Santa Cruz Mountains, Interior Monterey County and the Santa Lucia
Range, Most of San Benito County and the Cholame Hills in Southeast
Monterey County, North Bay Interior Mountains, and Southern Salinas
Valley/Arroyo Seco and Lake San Antonio.
* WHEN...From 11 AM Saturday to 10 PM PDT Monday.
* IMPACTS...This level of heat affects anyone without effective
cooling and/or adequate hydration. Impacts likely in some health
systems, heat-sensitive industries and infrastructure.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
$$
KR
URGENT - WEATHER MESSAGE
National Weather Service Los Angeles/Oxnard CA
1038 AM PDT Fri Oct 2 2026
CAZ341>345-347-348-050300-
/O.CON.KLOX.HT.Y.0018.261003T1700Z-261005T0300Z/
San Luis Obispo County Inland Central Coast-Santa Lucia Mountains-
Southern Salinas Valley-San Luis Obispo County Interior Valleys-
San Luis Obispo County Mountains-Santa Barbara County Inland
Central Coast-Santa Ynez Valley-
Including the cities of Lake Nacimiento, Solvang, Paso Robles,
Caliente Range, Los Olivos, San Miguel, Carrizo Plain, Hearst Castle,
Atascadero, Lake Cachuma, Shandon, Creston, La Panza Range, Santa
Margarita Lake, San Luis Obispo, Lopez Lake, Santa Maria, Templeton,
Santa Ynez, Buellton, Nipomo, and Irish Hills
1038 AM PDT Fri Oct 2 2026
...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM SATURDAY TO 8 PM PDT
SUNDAY...
* WHAT...Dangerously hot conditions with temperatures around 90 near
the coast to 103 inland.
* WHERE...San Luis Obispo County Inland Central Coast, San Luis
Obispo County Interior Valleys, San Luis Obispo County Mountains,
Santa Barbara County Inland Central Coast, Santa Lucia Mountains,
Santa Ynez Valley, and Southern Salinas Valley.
* WHEN...From 10 AM Saturday to 8 PM PDT Sunday.
* IMPACTS...Hot temperatures may cause heat illnesses.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
&&
$$
MW
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1000 AM PDT Fri Oct 2 2026
CAZ131-134-137-148>164-040045-
/O.EXT.KSTO.HT.Y.0006.261003T1800Z-261008T0500Z/
N. Motherlode 1000-3000 ft-Central Motherlode 1000-3000 ft-
Southern Motherlode 1000-3000 ft-Central Colusa County Incl. I-5-
Eastern Colusa County-Sutter/Yuba counties below 1000 ft-Yolo /
Solano County Hills-W. Yolo County including Capay/I-505-C.
Yolo/NE Solano including Woodland-Sac Metro/W. El Dorado/Amador
County-C. Solano County including Fairfield-SW Solano County
including Vallejo-Sacramento County Delta-San Joaquin County
Delta-C. San Joaquin County including Stockton-Tracy Triangle
Below 1000 ft-NE San Joaquin Valley Below 1000 ft-E. Diablo Range
Above 1000 ft-W. Stanislaus County Above 1000 ft & I-5-C.
Stanislaus County including Modesto-
Including the cities of Walnut Grove, Esparto, Winters, Woodland,
Dixon, Auburn, Grass Valley, Colfax, Nevada City, Williams, Yuba
City, Beale AFB, Modesto, Turlock, Tracy, Cameron Park, Shingle
Springs, Placerville, Cool, Jackson, Stockton, Lodi, Vallejo,
Benicia, Sonora, Angels Camp, Lincoln, Roseville, Sacramento, Elk
Grove, Folsom, Fairfield, Vacaville, and Colusa
1000 AM PDT Fri Oct 2 2026
...HEAT ADVISORY NOW IN EFFECT FROM 11 AM SATURDAY TO 10 PM PDT
WEDNESDAY...
* WHAT...High temperatures of 94 to 100 degrees expected and low
temperatures in the mid 60s to low 70s, with widespread Moderate
HeatRisk and areas of Major HeatRisk.
* WHERE...Sacramento and northern San Joaquin valleys, Delta and
Carquinez Strait, and foothills.
* WHEN...From 11 AM Saturday to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially to
anyone without effective cooling and/or adequate hydration.
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.
&&
$$
For more information, visit us at www.weather.gov/sto/
Forrest
URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1000 AM PDT Fri Oct 2 2026
CAZ122-124-125-129-141-142-144>147-040045-
/O.EXB.KSTO.HT.Y.0006.261003T1800Z-261008T0500Z/
W. Shasta County 1000-3000 ft-Shasta Metro-Shasta County
Foothills 1000-3000 ft-Sierra (Tehama-Plumas) 1000-3000 ft-W
Tehama Co Foothills 1000-3000 ft-N. Sac Valley in Tehama County-
Central Glenn Co & Interstate 5-Eastern Glenn County-Butte County
Below 1000 ft-W. Glenn/Colusa Foothills 1000-3000 ft-
Including the cities of Whiskeytown, Redding, Anderson, Willows,
Orland, Chico, Oroville, Gridley, Red Bluff, and Paradise
1000 AM PDT Fri Oct 2 2026
...HEAT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 10 PM PDT
WEDNESDAY...
* WHAT...High temperatures of 94 to 100 degrees expected and low
temperatures in the mid 60s to low 70s, with widespread Moderate
HeatRisk and areas of Major HeatRisk.
* WHERE...Sacramento and northern San Joaquin valleys, Delta and
Carquinez Strait, and foothills.
* WHEN...From 11 AM Saturday to 10 PM PDT Wednesday.
* IMPACTS...Hot temperatures may cause heat illnesses, especially to
anyone without effective cooling and/or adequate hydration.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
&&
$$
URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
932 AM PDT Fri Oct 2 2026
CAZ300>322-030100-
/O.EXT.KHNX.HT.Y.0007.261003T1800Z-261007T0600Z/
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-South End of the Lower Sierra-
Including the cities of Atwater, North Fork, Planada, Taft, Kerman,
Parlier, Avenal, Bakersfield, Coarsegold, Fish Camp, Mariposa, Arvin,
Selma, Merced, Blackwells Corner, Corcoran, Lamont, Sanger, Hanford,
Lost Hills, Lemoore Station, McKittrick, Buttonwillow, Alpaugh,
Oakhurst, Delano, Porterville, Fresno, Lemoore, Coalinga, Bass Lake,
El Portal, Madera, Auberry, Los Banos, Shafter, Kettleman City,
Visalia, Five Points, Le Grand, Goshen, Richgrove, Millerton Lake,
Lake Mcclure, Tulare, Wasco, Camp Nelson, Kingsburg, and San Luis
Reservoir
932 AM PDT Fri Oct 2 2026
...HEAT ADVISORY NOW IN EFFECT FROM 11 AM SATURDAY TO 11 PM PDT
TUESDAY...
* WHAT...High temperatures up to 103 degrees expected.
* WHERE...San Joaquin Valley and Sierra Foothills.
* WHEN...From 11 AM Saturday to 11 PM PDT Tuesday.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Moderate to major risk of heat-related
illnesses for much of the population, especially those without
effective cooling or hydration.
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.
&&
$$
JPK
