Where do these alerts come from?

From the US National Weather Service (api.weather.gov), the agency that issues every official weather warning, watch and advisory in the United States. This page refreshes from it every 5 minutes.

National Weather Service · refreshed every 5 min

Weather Alerts in California

Yes. As of 18 Oct 2026, 20:35 PDT, 4 weather alerts are active in California: 1 Frost Advisory and 3 Beach Hazards Statements.

Tornado warnings now weather.gov ↗ All states

Most serious firstActive Alerts in California

Frost Advisory MinorFrost Advisory issued October 18 at 5:56PM PDT until October 19 at 9:00AM PDT by NWS Eureka CASouthern Trinity; Northwestern Interior Mendocino; Northeastern Interior Mendocino; Northern Lake

What to do

Take steps now to protect tender plants from the cold.

Beach Hazards Statement ModerateBeach Hazards Statement issued October 18 at 8:32PM PDT until October 18 at 9:00PM PDT by NWS San Francisco CASan Francisco; Coastal North Bay Including Point Reyes National Seashore; San Francisco Peninsula Coast; Northern Monterey Bay; Southern Monterey Bay and Big Sur Coast

Beach Hazards Statement ModerateBeach Hazards Statement issued October 18 at 12:43PM PDT until October 20 at 9:00AM PDT by NWS San Diego CASan Diego County Coastal Areas; Orange County Coastal

What to do

Remain out of the water to avoid hazardous swimming conditions.

Beach Hazards Statement ModerateBeach Hazards Statement issued October 18 at 12:31PM PDT until October 20 at 9:00AM PDT by NWS Los Angeles/Oxnard CAVentura County Beaches; Malibu Coast; Los Angeles County Beaches

What to do

Remain out of the water due to hazardous swimming conditions, or stay near occupied lifeguard towers. Rock jetties can be deadly in such conditions, stay off the rocks.

Warning, watch or advisory?

Warning — the hazard is happening or about to. Act now: take shelter, leave, or stay off the roads.
Watch — conditions could produce it. Have a plan and keep checking.
Advisory — less serious, but a nuisance or a risk for some people, such as drivers or those sensitive to heat.
Statement — information that does not reach advisory level.

Receiving alerts on your phone: Wireless Emergency Alerts are on by default for the most serious warnings. A NOAA Weather Radio keeps working when the power and the mobile network do not.

What this page shows, and what it misses

Alerts come straight from the US National Weather Service (api.weather.gov), refreshed every five minutes. The most serious appear first. Alert text is the NWS's own; times in each headline are the issuing office's local time. Local emergency managers sometimes issue orders — evacuations, boil-water notices — that are not weather alerts and do not appear here. Severe and extreme alerts also go into our United States incident record. Method: about · credits: licences.