|
NOAA's National Weather Service
Each location shows all alerts on one page
WARNINGS - WATCHES - ADVISORIES - STATEMENTS
Updates every 15 Minutes
|
| |
||
| Los Angeles County | ||
| Effective: Sat, 10/3 12:00pm | Severity: Moderate | |
| Updated: October 3, 2026 6:01 pm | Urgency: Expected | |
| Expires: Sun, 10/4 3:00am | Certainty: Likely | |
| Areas Affected: 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 | ||
Alert
Details:
* 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. Information: 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. |
||
| |
||
| Los Angeles County | ||
| Effective: Sat, 10/3 12:00pm | Severity: Moderate | |
| Updated: October 3, 2026 6:01 pm | Urgency: Expected | |
| Expires: Sun, 10/4 3:00am | Certainty: Likely | |
| Areas Affected: San Francisco - Marin Coastal Range - Northern Salinas Valley/Hollister Valley and Carmel Valley - Northern Monterey Bay | ||
Alert
Details:
* 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. Information: 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. |
||
| |
||
| Marin County | ||
| Effective: Sat, 10/3 12:00pm | Severity: Moderate | |
| Updated: October 3, 2026 6:01 pm | Urgency: Expected | |
| Expires: Sun, 10/4 3:00am | Certainty: Likely | |
| Areas Affected: 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 | ||
Alert
Details:
* 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. Information: 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. |
||
| |
||
| Marin County | ||
| Effective: Sat, 10/3 12:00pm | Severity: Moderate | |
| Updated: October 3, 2026 6:01 pm | Urgency: Expected | |
| Expires: Sun, 10/4 3:00am | Certainty: Likely | |
| Areas Affected: San Francisco - Marin Coastal Range - Northern Salinas Valley/Hollister Valley and Carmel Valley - Northern Monterey Bay | ||
Alert
Details:
* 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. Information: 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. |
||