Heat Advisory

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
748 PM PDT Sat Oct 3 2026

CAZ006-502-528-529-050500-
/O.CON.KMTR.HT.Y.0014.000000T0000Z-261005T0500Z/
San Francisco-Marin Coastal Range-Northern Salinas
Valley/Hollister Valley and Carmel Valley-Northern Monterey Bay-
748 PM PDT Sat Oct 3 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT SUNDAY...

* WHAT...Hot conditions with maximum temperatures in the low-80s to
  low-90s. Mild minimum temperatures and weak onshore flow will limit
  overnight relief.

* WHERE...The Marin Hills, Northern Monterey Bay, San Francisco, and
  Northern Salinas Valley/Hollister Valley and Carmel Valley.

* WHEN...Until 10 PM PDT Sunday.

* 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.

Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles. Car interiors will reach lethal
temperatures in a matter of minutes.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
748 PM PDT Sat Oct 3 2026

CAZ503-504-506-508-510-512>518-050515-
/O.CON.KMTR.HT.Y.0014.000000T0000Z-261008T0500Z/
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-
748 PM PDT Sat Oct 3 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT WEDNESDAY...

* WHAT...Hot conditions with maximum temperatures in the mid-90s to
  low-100s. Mild minimum temperatures and weak onshore flow will
  limit overnight relief.

* WHERE...The East Bay and San Francisco Bay Shoreline, North Bay
  Interior Mountains and Valleys, The Santa Clara Valley and Eastern
  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, and Southern Salinas Valley/Arroyo
  Seco and Lake San Antonio.

* WHEN...Until 10 PM PDT Wednesday.

* 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.

Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles. Car interiors will reach lethal
temperatures in a matter of minutes.

&&

$$

Sarment

URGENT - WEATHER MESSAGE
National Weather Service San Francisco CA
748 PM PDT Sat Oct 3 2026

CAZ505-509-530-050500-
/O.EXA.KMTR.HT.Y.0014.000000T0000Z-261005T0500Z/
Coastal North Bay Including Point Reyes National Seashore-San
Francisco Peninsula Coast-Southern Monterey Bay and Big Sur Coast-
748 PM PDT Sat Oct 3 2026

...HEAT ADVISORY IN EFFECT UNTIL 10 PM PDT SUNDAY...

* WHAT...Hot conditions with maximum temperatures in the low-80s to
  low-90s. Mild minimum temperatures and weak onshore flow will limit
  overnight relief.

* WHERE...Southern Monterey Bay and the Big Sur Coast, Coastal North
  Bay Including Point Reyes National Seashore, and San Francisco
  Peninsula Coast.

* WHEN...Until 10 PM PDT Sunday.

* 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.

Beat the heat and check the backseat! Do not leave young children or
pets in unattended vehicles. Car interiors will reach lethal
temperatures in a matter of minutes.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Hanford CA
534 PM PDT Sat Oct 3 2026

CAZ300>322-041000-
/O.CON.KHNX.HT.Y.0007.000000T0000Z-261008T0600Z/
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 Le Grand, Sanger, Wasco, Coarsegold, Merced,
Hanford, Selma, Planada, Kingsburg, San Luis Reservoir, Delano, Camp
Nelson, Lost Hills, North Fork, Bakersfield, Taft, Porterville, Fish
Camp, Parlier, Bass Lake, Tulare, Five Points, Coalinga, McKittrick,
Visalia, Atwater, Goshen, Kettleman City, Oakhurst, Avenal, Alpaugh,
Lamont, Millerton Lake, Blackwells Corner, Lemoore Station,
Richgrove, Shafter, Los Banos, Kerman, Mariposa, Corcoran,
Buttonwillow, Auberry, Fresno, Madera, Lake Mcclure, Lemoore, Arvin,
and El Portal
534 PM PDT Sat Oct 3 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT WEDNESDAY...

* WHAT...High temperatures up to 104 degrees expected with the
  warmest temperatures will be located in the southern San Joaquin
  Valley. Overnight lows between 70 and 75 degrees expected in the
  Sierra Foothills where the thermal belt is strongest.

* WHERE...San Joaquin Valley, Sierra Nevada foothills, and Coastal
  West Hills.

* WHEN...Until 11 PM PDT Wednesday.

* 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.

&&

$$

CMolina

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
214 PM PDT Sat Oct 3 2026

CAZ122-124-125-129-131-134-137-141-142-144>164-050000-
/O.CON.KSTO.HT.Y.0006.000000T0000Z-261008T0500Z/
W. Shasta County 1000-3000 ft-Shasta Metro-Shasta County
Foothills 1000-3000 ft-Sierra (Tehama-Plumas) 1000-3000 ft-N.
Motherlode 1000-3000 ft-Central Motherlode 1000-3000 ft-Southern
Motherlode 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-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 Yuba City, Beale AFB, Lincoln, Roseville,
Sacramento, Elk Grove, Folsom, Paradise, Tracy, Esparto, Winters,
Whiskeytown, Red Bluff, Colusa, Modesto, Turlock, Vallejo, Benicia,
Fairfield, Vacaville, Sonora, Angels Camp, Stockton, Lodi, Chico,
Oroville, Gridley, Redding, Anderson, Cameron Park, Shingle Springs,
Placerville, Cool, Jackson, Auburn, Grass Valley, Colfax, Nevada
City, Willows, Orland, Walnut Grove, Woodland, Dixon, and Williams
214 PM PDT Sat Oct 3 2026

...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM PDT WEDNESDAY...

* WHAT...High temperatures of 94 to 102 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...Until 10 PM PDT Wednesday.

* IMPACTS...Hot temperatures may cause heat illnesses, especially to
  anyone without effective cooling and/or adequate hydration.

* ADDITIONAL DETAILS...Hottest days expected Monday through
  Wednesday.

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/

URGENT - WEATHER MESSAGE
National Weather Service Eureka CA
143 PM PDT Sat Oct 3 2026

CAZ112-113-118>120-040445-
/O.EXT.KEKA.HT.Y.0006.000000T0000Z-261005T0600Z/
Southwestern Interior Mendocino-Southeastern Interior Mendocino-
Western Lake-Southwestern Lake-Eastern Lake-
Including Upper Lake, Middletown, Ukiah, Hidden Valley Lake,
Clearlake, Yorkville, Philo, Lakeport, Hopland, Talmage, Clearlake
Park, Finley, Redwood Valley, Boonville, and Calpella
143 PM PDT Sat Oct 3 2026

...HEAT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT SUNDAY...

* WHAT...High temperatures up to 101 with overnight temperatures over
  65. Moderate to localized high HeatRisk.

* WHERE...Southern Mendocino Interior, and Southern Lake.

* WHEN...Until 11 PM PDT Sunday.

* 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

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