Weather alerts in California, 2024

4,553 weather alerts in 2024, from the National Weather Service and the Storm Prediction Center. An alert counts here when it covered any part of the state, so the counties below add up to more than the state.

Weather alerts by county

Each county as a circle sized by its count in 2024. Tap one for its archive.

Alerts: 4,553
Warnings: 1,107
Watches: 419
Advisories: 2,137
Busiest month: February747 alerts
Busiest day: February 19, 2024100 alerts

Over time

By month

The alerts

4,553 alerts are too many to list on one page. Narrow it to a product above, to a month in the chart, or to a county.

By product

Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.

Product	Alerts
Severe storms
Severe Thunderstorm Warning	111
Tornado Warning	13
Severe Thunderstorm Watch	1
Mesoscale Discussion	12
Special Weather Statement	815
Flooding
Areal Flood Warning	27
Flash Flood Warning	129
River Flood Warning	40
Flash Flood Watch	4
Flood Watch	45
River Flood Watch	12
Areal Flood Advisory	487
River Flood Advisory	2
Winter
Blizzard Warning	3
Winter Storm Warning	97
Winter Storm Watch	69
Winter Weather Advisory	166
Heat
Excessive Heat Warning	49
Excessive Heat Watch	42
Heat Advisory	67
Cold
Freeze Warning	55
Hard Freeze Warning	3
Freeze Watch	35
Hard Freeze Watch	3
Cold Weather Advisory	7
Frost Advisory	100
Wind and dust
Dust Storm Warning	4
High Wind Warning	78
High Wind Watch	46
Blowing Dust Advisory	2
Dust Storm Advisory	16
Lake Wind Advisory	35
Wind Advisory	392
Fire
Red Flag Warning	84
Fire Weather Watch	55
Fog and smoke
Dense Fog Advisory	160
Dense Smoke Advisory	4
Freezing Fog Advisory	12
Coast and beach
Coastal Flood Warning	3
High Surf Warning	5
Tsunami Warning	1
Coastal Flood Advisory	45
High Surf Advisory	66
Beach Hazards Statement	63
Marine
Gale Warning	175
Hazardous Seas Warning	43
Hurricane Force Wind Warning	1
Special Marine Warning	173
Storm Warning	13
Gale Watch	97
Hazardous Seas Watch	6
Storm Watch	4
Marine Dense Fog Advisory	6
Small Craft Advisory	570

By county

Every county with at least one alert. A county page lists each alert that covered it.

18 more counties

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2023 2025

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Rebuilt daily.