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California Weather Alerts
7 active alerts from the National Weather Service · Updated 10/30/2026, 9:41 PM PT
Not an official warning and may be delayed. Follow local authorities. In an emergency, call 911.
- Active alerts
- 7
- Warnings
- 0
- Watches
- 0
- Advisories
- 7
Active alerts in California
Most serious first. Times are local.
Moderate4Possible threat to life or property
- Winter Weather AdvisoryYosemite NP outside of the valley; Upper San Joaquin River; Kaiser to Rodgers Ridge; Kings Canyon NP; Sequoia NPUntil Sun 11/01/2026, 7:00 AM PST · NWS Hanford CA
- Winter Weather AdvisorySierra Nevada of Sierra-Nevada-Placer Counties Above 5000 ft Including Interstate 80; Sierra Nevada of El Dorado-Amador-Northern Alpine Counties Above 5000 ft Including Highway 50; Sierra Nevada of Calaveras-Tuolumne-Southern Alpine Counties Above 5000 ftUntil Sun 11/01/2026, 7:00 AM PST · NWS Sacramento CA
- Winter Weather AdvisoryGreater Lake Tahoe Area; Greater Lake Tahoe AreaUntil Sun 11/01/2026, 7:00 AM PST · NWS Reno NV
- Winter Weather AdvisoryMonoUntil Sun 11/01/2026, 7:00 AM PST · NWS Reno NV
Minor3Minimal to no known threat
- Coastal Flood AdvisorySan Francisco; North Bay Interior Valleys; San Francisco Bay Shoreline; Northern Monterey Bay; Southern Monterey Bay and Big Sur CoastUntil Sun 11/01/2026, 6:00 PM PST · NWS San Francisco CA
- Coastal Flood AdvisoryCoastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula CoastUntil Sat 10/31/2026, 6:00 PM PDT · NWS San Francisco CA
- Frost AdvisoryNorthwestern Interior Mendocino; Northeastern Interior Mendocino; Northern LakeUntil Sat 10/31/2026, 10:00 AM PDT · NWS Eureka CA
What these alerts mean
- Winter Weather AdvisorySnow, sleet, freezing rain or blowing snow will make travel difficult.4
- Coastal Flood AdvisoryMinor flooding along the coast at high tide is expected.2
- Frost AdvisoryFrost may harm sensitive outdoor plants. Cover or bring them inside.1
Alert levels
- Warning
- The hazard is happening or about to happen. Take action now to protect life and property.
- Watch
- Conditions are right for the hazard to develop. Stay alert and be ready to act if a warning is issued.
- Advisory
- Less serious conditions that can still cause significant inconvenience and, without caution, could be dangerous.
- Statement
- Information about current or expected conditions, such as a special weather statement or outlook.
Frequently asked questions
- Are there any weather alerts in California right now?
- Yes. There are 7 active alerts in California: Winter Weather Advisory (4), Coastal Flood Advisory (2), Frost Advisory (1).
- How do I get alerts on my phone?
- Wireless Emergency Alerts are sent automatically to phones for the most dangerous warnings, such as tornado and flash flood warnings. You can also use NOAA Weather Radio or your local emergency alert sign-up.
- How often is this page updated?
- We check the National Weather Service every 10 minutes. Expired and canceled alerts are removed automatically.
Source: National Weather Service (api.weather.gov) · Last updated 10/30/2026
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