Weather alerts in California, 2016

3,493 weather alerts in 2016, 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 2016. Tap one for its archive.

Alerts: 3,493
Warnings: 833
Watches: 362
Advisories: 1,809
Busiest month: January576 alerts
Busiest day: January 6, 201674 alerts

Over time

By month

The alerts

3,493 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	90
Tornado Warning	6
Mesoscale Discussion	3
Special Weather Statement	388
Flooding
Areal Flood Warning	6
Flash Flood Warning	124
River Flood Warning	27
Flash Flood Watch	53
Flood Watch	22
River Flood Watch	8
Areal Flood Advisory	295
River Flood Advisory	7
Winter
Blizzard Warning	1
Ice Storm Warning	1
Winter Storm Warning	58
Winter Storm Watch	55
Freezing Rain Advisory	1
Winter Weather Advisory	137
Heat
Excessive Heat Warning	21
Excessive Heat Watch	11
Heat Advisory	12
Cold
Freeze Warning	36
Hard Freeze Warning	16
Freeze Watch	18
Hard Freeze Watch	7
Frost Advisory	55
Wind and dust
Dust Storm Warning	8
High Wind Warning	79
High Wind Watch	50
Blowing Dust Advisory	14
Lake Wind Advisory	53
Wind Advisory	384
Fire
Red Flag Warning	89
Fire Weather Watch	64
Fog and smoke
Dense Fog Advisory	83
Freezing Fog Advisory	1
Coast and beach
Coastal Flood Warning	3
High Surf Warning	9
Coastal Flood Advisory	26
High Surf Advisory	85
Beach Hazards Statement	97
Coastal Flood Statement	1
Marine
Gale Warning	130
Hazardous Seas Warning	31
Special Marine Warning	95
Storm Warning	3
Gale Watch	67
Hazardous Seas Watch	5
Storm Watch	2
Marine Dense Fog Advisory	1
Small Craft Advisory	558
Small Craft Advisory for Hazardous Seas	47
Small Craft Advisory for Rough Bar	47
Small Craft Advisory for Winds	3

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 2015 2017

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.