Weather alerts in California, 2008

2,381 weather alerts in 2008, 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 2008. Tap one for its archive.

Alerts: 2,381
Warnings: 730
Watches: 378
Advisories: 1,176
Busiest month: December409 alerts
Busiest day: December 16, 200842 alerts

Over time

By month

The alerts

2,381 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	92
Tornado Warning	11
Severe Thunderstorm Watch	2
Mesoscale Discussion	24
Flooding
Areal Flood Warning	1
Flash Flood Warning	171
River Flood Warning	5
Flash Flood Watch	62
Flood Watch	5
Areal Flood Advisory	109
River Flood Statement	2
Winter
Blizzard Warning	5
Heavy Snow Warning	13
Winter Storm Warning	74
Winter Storm Watch	81
Blowing Snow Advisory	3
Lake Effect Snow Advisory	1
Snow Advisory	74
Snow and Blowing Snow Advisory	29
Winter Weather Advisory	60
Heat
Excessive Heat Warning	40
Excessive Heat Watch	17
Heat Advisory	14
Cold
Freeze Warning	27
Hard Freeze Warning	1
Freeze Watch	13
Hard Freeze Watch	2
Frost Advisory	54
Wind and dust
Dust Storm Warning	6
High Wind Warning	82
High Wind Watch	73
Lake Wind Advisory	74
Wind Advisory	336
Fire
Red Flag Warning	115
Fire Weather Watch	84
Fog and smoke
Air Stagnation Advisory	2
Dense Fog Advisory	102
Dense Smoke Advisory	1
Freezing Fog Advisory	1
Coast and beach
Coastal Flood Warning	2
High Surf Warning	5
Coastal Flood Watch	3
Coastal Flood Advisory	4
High Surf Advisory	42
Coastal Flood Statement	13
Marine
Gale Warning	36
Hazardous Seas Warning	11
Special Marine Warning	33
Gale Watch	26
Hazardous Seas Watch	10
Marine Dense Fog Advisory	3
Small Craft Advisory	170
Small Craft Advisory for Hazardous Seas	44
Small Craft Advisory for Rough Bar	16
Small Craft Advisory for Winds	37
Marine Weather Statement	58

By county

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

16 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 2007 2009

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.