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California weather alerts

19 active alerts across 48 counties in California right now: 9 Extreme Heat Warnings, an Extreme Heat Watch, 7 Heat Advisories, and 1 more. Pick a county or city for what is active, what it means, and a year of history.

48 of 58 counties with alerts most common now: Extreme Heat Warning All counties Get alerts on your phone →

Where the alerts are right now

Get California alerts on your phone before you think to look them up

Forecast Bar watches the official alert feeds around the clock, NWS in the United States and Environment Canada in Canada, and pushes every warning, watch and advisory for your saved locations the moment it is issued. This page is the same data, a few minutes later.

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Last 7 days

Recently issued in California

Alert	Area	Issued	Ended
Extreme Heat Warning	San Diego County	3:19 AM	Active
Extreme Heat Warning	Orange County	3:19 AM	Active
Extreme Heat Warning	Riverside County	3:19 AM	Active
Extreme Heat Warning	San Diego County	3:19 AM	Active
Extreme Heat Warning	Orange County	3:19 AM	Active
Extreme Heat Warning	San Diego County	3:19 AM	Active
Extreme Heat Warning	Inyo County	2:46 AM	Active
Heat Advisory	Tulare County	1:43 AM	Active
Beach Hazards Statement	San Diego County	1:21 AM	Active
Extreme Heat Watch	Imperial County	12:06 AM	Active
Heat Advisory	Contra Costa County	Oct 4, 11:01 PM	Active
Beach Hazards Statement	San Diego County	Oct 4, 9:48 PM	Active
Heat Advisory	Santa Clara County	Oct 4, 9:34 PM	Active
Heat Advisory	Monterey County	Oct 4, 9:34 PM	Oct 4, 10:00 PM
Extreme Heat Warning	Orange County	Oct 4, 9:10 PM	Active
Extreme Heat Warning	San Diego County	Oct 4, 9:10 PM	Active
Extreme Heat Warning	San Diego County	Oct 4, 9:10 PM	Active
Extreme Heat Warning	San Bernardino County	Oct 4, 9:10 PM	Active
Extreme Heat Warning	Orange County	Oct 4, 9:10 PM	Active
Extreme Heat Warning	San Diego County	Oct 4, 9:10 PM	Active

Cities

Alerts by city in California

Every city of 50,000 or more. Alerts are issued by county, so a city page shows the alerts for the county it sits in.

Everywhere

All 58 counties in California

Alameda County1 Alpine County Amador County1 Butte County1 Calaveras County1 Colusa County1 Contra Costa County1 Del Norte County El Dorado County1 Fresno County1 Glenn County1 Humboldt County Imperial County1 Inyo County1 Kern County1 Kings County1 Lake County2 Lassen County Los Angeles County2 Madera County1 Marin County1 Mariposa County1 Mendocino County2 Merced County1 Modoc County Mono County Monterey County1 Napa County1 Nevada County1 Orange County4 Placer County1 Plumas County1 Riverside County2 Sacramento County1 San Benito County1 San Bernardino County1 San Diego County4 San Francisco County San Joaquin County1 San Luis Obispo County2 San Mateo County1 Santa Barbara County3 Santa Clara County1 Santa Cruz County1 Shasta County1 Sierra County Siskiyou County Solano County1 Sonoma County1 Stanislaus County1 Sutter County1 Tehama County1 Trinity County Tulare County1 Tuolumne County1 Ventura County3 Yolo County1 Yuba County1

Plain English

What these alerts mean

A warning means the hazard is happening or about to; a watch means conditions favour it; an advisory is a lesser hazard still worth planning around.

Extreme Heat Warning

Extremely dangerous heat. Avoid strenuous activity, stay in cool spaces and never leave people or pets in a vehicle.

Heat Advisory

Heat index values high enough to cause heat illness with prolonged exposure. Drink water, stay in air conditioning and check on neighbours.

Beach Hazards Statement

Hazards such as rip currents, sneaker waves or cold water are expected at the beach.

Extreme Heat Watch

Extremely dangerous heat is possible. Make plans to stay cool and hydrated.

Get California alerts the moment they are issued

Forecast Bar delivers National Weather Service alerts for your locations as push notifications on iPhone, iPad, Apple Watch, Mac and Apple TV, with radar, Storm Tracker and Live Activities that follow the storm.

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