Weather alerts in California, December 2011

229 weather alerts in December 2011, 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 December 2011. Tap one for its archive.

Alerts: 229
Warnings: 59
Watches: 36
Advisories: 123
Busiest day: December 4, 201120 alerts

Over time

By day

Days in UTC, the clock the archive keeps.

The alerts

Every alert, in the order issued. Times are local, Pacific Time. Each opens its own page with the text, the map, the radar and the sounding.

Issued	Product	Office	Counties	Lasted
Nov 30, 5:50 PM PST	Special Weather Statement	HNX		3 hr
Nov 30, 10:42 PM PST	Special Weather Statement	HNX	Kings	3 hr
Nov 30, 11:58 PM PST	Special Weather Statement	HNX	Kings	6 hr
Dec 1, 3:01 AM PST	Gale Watch	LOX		11 hr
Dec 1, 3:13 AM PST	Winter Weather Advisory	SGX	San Bernardino	14 hr
Dec 1, 3:22 AM PST	Gale Watch	EKA		11 hr
Dec 1, 4:07 AM PST	Frost Advisory	HNX		29 hr
Dec 1, 4:07 AM PST	Frost Advisory	HNX		53 hr
Dec 1, 9:38 AM PST	Small Craft Advisory	MTR		60 hr
Dec 1, 11:41 AM PST	Small Craft Advisory	SGX		14 hr
Dec 1, 1:05 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	18 hr
Dec 1, 2:20 PM PST	Gale Warning	EKA		49 hr
Dec 1, 2:24 PM PST	Small Craft Advisory	LOX		19 hr
Dec 1, 2:24 PM PST	Frost Advisory	MTR	Monterey	17 hr
Dec 1, 2:32 PM PST	Gale Warning	MTR		6 hr
Dec 1, 2:32 PM PST	Small Craft Advisory	MTR		12 hr
Dec 1, 3:45 PM PST	Fire Weather Watch	LOX	Los Angeles	22 hr
Dec 1, 4:28 PM PST	High Wind Warning	REV	Alpine, El Dorado, Nevada, Placer	7 hr
Dec 1, 5:22 PM PST	Winter Storm Warning	SGX	San Bernardino	14 hr
Dec 1, 6:41 PM PST	Wind Advisory	MTR	Monterey	5 hr
Dec 2, 4:09 AM PST	Freeze Watch	LOX	Santa Barbara	10 hr
Dec 2, 1:05 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	36 hr
Dec 2, 1:11 PM PST	Fire Weather Watch	SGX	Orange, Riverside, San Bernardino, San Diego	14 hr
Dec 2, 1:15 PM PST	Red Flag Warning	LOX	Los Angeles	45 hr
Dec 2, 1:28 PM PST	Wind Advisory	MTR	San Mateo, Santa Clara, Santa Cruz	21 hr
Dec 2, 2:21 PM PST	Small Craft Advisory	LOX		24 hr
Dec 2, 2:24 PM PST	Freeze Watch	LOX	Santa Barbara	19 hr
Dec 2, 2:24 PM PST	High Wind Warning	LOX		24 hr
Dec 2, 2:24 PM PST	Wind Advisory	LOX	Los Angeles	42 hr
Dec 2, 2:45 PM PST	Freeze Watch	HNX		18 hr
Dec 2, 3:07 PM PST	Wind Advisory	STO		27 hr
Dec 2, 5:27 PM PST	Freeze Warning	LOX	Santa Barbara	16 hr
Dec 2, 11:33 PM PST	Hazardous Seas Warning	EKA		15 hr
Dec 3, 4:28 AM PST	Small Craft Advisory for Hazardous Seas	LOX		16 hr
Dec 3, 4:29 AM PST	Frost Advisory	LOX		5 hr
Dec 3, 8:56 AM PST	Special Weather Statement	HNX		3 hr
Dec 3, 9:07 AM PST	Frost Advisory	LOX		24 hr
Dec 3, 9:07 AM PST	Freeze Warning	LOX	Santa Barbara	24 hr
Dec 3, 9:13 AM PST	Freeze Warning	HNX		24 hr
Dec 3, 1:05 PM PST	Special Weather Statement	HNX		3 hr
Dec 3, 1:45 PM PST	Fire Weather Watch	SGX	Orange, Riverside, San Bernardino, San Diego	24 hr
Dec 3, 2:18 PM PST	High Wind Watch	LOX	Los Angeles	24 hr
Dec 3, 2:44 PM PST	Fire Weather Watch	STO		25 hr
Dec 3, 2:55 PM PST	Fire Weather Watch	LOX	Los Angeles	19 hr
Dec 3, 4:55 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	15 hr
Dec 3, 9:18 PM PST	Freeze Warning	MTR	Monterey	11 hr
Dec 4, 1:22 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	31 hr
Dec 4, 1:22 AM PST	High Wind Watch	SGX	Orange, Riverside, San Bernardino, San Diego	12 hr
Dec 4, 2:59 AM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	35 hr
Dec 4, 3:23 AM PST	Wind Advisory	MTR		24 hr
Dec 4, 5:03 AM PST	Frost Advisory	LOX		28 hr
Dec 4, 5:03 AM PST	Wind Advisory	LOX	Los Angeles	58 hr
Dec 4, 8:22 AM PST	Small Craft Advisory	MTR		14 hr
Dec 4, 8:50 AM PST	Gale Watch	LOX		6 hr
Dec 4, 10:00 AM PST	Red Flag Warning	LOX	Los Angeles	54 hr
Dec 4, 10:38 AM PST	Red Flag Warning	STO		29 hr
Dec 4, 1:35 PM PST	High Wind Warning	SGX	Orange, Riverside, San Bernardino, San Diego	24 hr
Dec 4, 1:35 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	48 hr
Dec 4, 1:40 PM PST	Red Flag Warning	SGX	Orange, Riverside, San Bernardino, San Diego	50 hr
Dec 4, 2:02 PM PST	Freeze Warning	HNX		19 hr
Dec 4, 2:26 PM PST	Gale Warning	LOX		23 hr
Dec 4, 2:38 PM PST	High Wind Warning	LOX	Los Angeles	25 hr
Dec 4, 2:45 PM PST	Wind Advisory	STO		21 hr
Dec 4, 3:09 PM PST	Lake Wind Advisory	VEF	San Bernardino	27 hr
Dec 4, 9:40 PM PST	Freeze Warning	LOX		11 hr
Dec 4, 11:36 PM PST	Wind Advisory	HNX		10 hr
Dec 5, 12:02 AM PST	Freeze Warning	MTR	Monterey	8 hr
Dec 5, 2:56 AM PST	Frost Advisory	MTR	Alameda, Contra Costa, Monterey, San Benito	30 hr
Dec 5, 2:56 AM PST	Freeze Warning	MTR	Marin, Monterey, Napa, Sonoma	30 hr
Dec 5, 2:58 AM PST	Freeze Warning	STO		30 hr
Dec 5, 4:33 AM PST	Freeze Watch	LOX		11 hr
Dec 5, 8:37 AM PST	Small Craft Advisory	LOX		30 hr
Dec 5, 12:53 PM PST	Freeze Warning	HNX		20 hr
Dec 5, 2:06 PM PST	Freeze Watch	VEF	San Bernardino	24 hr
Dec 5, 2:40 PM PST	Small Craft Advisory	MTR		3 hr
Dec 5, 3:30 PM PST	Frost Advisory	LOX		18 hr
Dec 5, 3:30 PM PST	Freeze Watch	LOX		23 hr
Dec 5, 3:30 PM PST	Freeze Warning	LOX		18 hr
Dec 6, 3:54 AM PST	Freeze Warning	MTR	Monterey	29 hr
Dec 6, 12:58 PM PST	Freeze Warning	HNX		20 hr
Dec 6, 1:33 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	18 hr
Dec 6, 2:26 PM PST	Freeze Warning	VEF	San Bernardino	18 hr
Dec 6, 2:33 PM PST	Frost Advisory	LOX		18 hr
Dec 6, 2:33 PM PST	Freeze Warning	LOX		18 hr
Dec 6, 2:38 PM PST	Freeze Warning	STO		18 hr
Dec 7, 2:51 AM PST	Small Craft Advisory	EKA		43 hr
Dec 7, 1:15 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	19 hr
Dec 7, 9:00 PM PST	Small Craft Advisory	LOX		12 hr
Dec 8, 3:31 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	28 hr
Dec 10, 1:30 PM PST	Winter Storm Watch	SGX	Riverside, San Bernardino, San Diego	24 hr
Dec 10, 2:40 PM PST	Small Craft Advisory	MTR		48 hr
Dec 10, 2:44 PM PST	Winter Storm Watch	LOX		24 hr
Dec 10, 3:03 PM PST	Gale Watch	EKA		16 hr
Dec 10, 3:03 PM PST	Gale Warning	EKA		48 hr
Dec 10, 3:03 PM PST	Small Craft Advisory	EKA		57 hr
Dec 10, 3:27 PM PST	Winter Storm Watch	HNX		23 hr
Dec 11, 1:45 PM PST	Winter Storm Warning	SGX	Riverside, San Bernardino, San Diego	47 hr
Dec 11, 2:13 PM PST	Winter Storm Warning	HNX		43 hr
Dec 11, 2:39 PM PST	Winter Storm Warning	LOX		43 hr
Dec 11, 8:53 PM PST	Small Craft Advisory	LOX		24 hr
Dec 11, 9:55 PM PST	Winter Weather Advisory	VEF	San Bernardino	23 hr
Dec 12, 3:10 AM PST	Winter Weather Advisory	HNX		30 hr
Dec 12, 11:37 AM PST	Special Weather Statement	SGX	San Diego	53 min
Dec 12, 11:40 AM PST	Special Marine Warning	SGX		35 min
Dec 12, 12:10 PM PST	Special Weather Statement	SGX	San Diego	35 min
Dec 12, 12:15 PM PST	Special Marine Warning	SGX		30 min
Dec 12, 2:35 PM PST	Special Marine Warning	LOX		25 min
Dec 12, 3:53 PM PST	Hard Freeze Warning	EKA		10 hr
Dec 12, 6:00 PM PST	Wind Advisory	HNX		8 hr
Dec 12, 9:01 PM PST	Small Craft Advisory for Hazardous Seas	LOX		12 hr
Dec 13, 12:54 AM PST	Winter Weather Advisory	SGX	San Bernardino	9 hr
Dec 13, 12:55 AM PST	Special Marine Warning	LOX		80 min
Dec 13, 2:19 AM PST	Special Marine Warning	LOX		86 min
Dec 13, 3:29 AM PST	Winter Weather Advisory	LOX		6 hr
Dec 13, 5:28 PM PST	Areal Flood Advisory	PSR	Imperial, Riverside	107 min
Dec 14, 2:00 AM PST	High Wind Watch	HNX		33 hr
Dec 14, 2:31 AM PST	Small Craft Advisory	EKA		24 hr
Dec 14, 2:33 AM PST	Dense Fog Advisory	PSR		5 hr
Dec 14, 3:02 AM PST	Freeze Warning	MTR	Marin, Napa, Sonoma	6 hr
Dec 14, 3:19 AM PST	High Wind Watch	LOX	Los Angeles	24 hr
Dec 14, 10:21 AM PST	Dense Fog Advisory	PSR		82 min
Dec 14, 1:38 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	8 hr
Dec 14, 1:59 PM PST	Winter Weather Advisory	MFR	Siskiyou	14 hr
Dec 14, 2:30 PM PST	Small Craft Advisory	MTR		37 hr
Dec 14, 8:46 PM PST	Gale Watch	LOX		6 hr
Dec 14, 8:46 PM PST	Small Craft Advisory	LOX		30 hr
Dec 14, 9:21 PM PST	High Wind Watch	SGX	Orange, Riverside, San Bernardino, San Diego	16 hr
Dec 15, 2:10 AM PST	Small Craft Advisory	EKA		37 hr
Dec 15, 2:36 AM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	49 hr
Dec 15, 2:52 AM PST	High Wind Warning	LOX	Los Angeles	59 hr
Dec 15, 2:52 AM PST	Wind Advisory	LOX	Los Angeles	59 hr
Dec 15, 3:36 AM PST	Freeze Watch	HNX		7 hr
Dec 15, 3:36 AM PST	Freeze Watch	HNX		24 hr
Dec 15, 5:32 AM PST	Dense Fog Advisory	PSR		4 hr
Dec 15, 1:34 PM PST	High Wind Warning	SGX	Orange, Riverside, San Bernardino, San Diego	47 hr
Dec 15, 1:34 PM PST	Wind Advisory	SGX	Riverside, San Diego	47 hr
Dec 15, 3:02 PM PST	Lake Wind Advisory	VEF	San Bernardino	27 hr
Dec 15, 3:42 PM PST	Areal Flood Advisory	SGX	Riverside, San Bernardino	77 min
Dec 15, 8:52 PM PST	Small Craft Advisory	LOX		40 hr
Dec 16, 1:44 AM PST	Special Weather Statement	HNX	Fresno	106 min
Dec 16, 3:36 AM PST	Dense Fog Advisory	HNX		7 hr
Dec 16, 3:36 AM PST	Freeze Warning	HNX		7 hr
Dec 16, 10:29 AM PST	Winter Weather Advisory	SGX	San Diego	7 hr
Dec 16, 1:37 PM PST	Dense Fog Advisory	HNX		21 hr
Dec 16, 3:10 PM PST	Small Craft Advisory	EKA		4 days
Dec 16, 3:12 PM PST	Wind Advisory	SGX	San Diego	21 hr
Dec 16, 5:23 PM PST	Winter Storm Warning	SGX	San Diego	10 hr
Dec 17, 2:34 AM PST	Gale Watch	EKA		24 hr
Dec 17, 2:55 AM PST	Winter Weather Advisory	SGX	Riverside, San Bernardino, San Diego	10 hr
Dec 17, 8:08 AM PST	Small Craft Advisory for Rough Bar	MTR		42 hr
Dec 17, 1:24 PM PST	Winter Weather Advisory	SGX	Riverside, San Bernardino, San Diego	28 hr
Dec 17, 1:43 PM PST	Dense Fog Advisory	HNX		19 hr
Dec 17, 4:09 PM PST	Winter Weather Advisory	LOX		18 hr
Dec 18, 1:07 AM PST	Special Marine Warning	SGX		23 min
Dec 18, 2:44 AM PST	Small Craft Advisory for Hazardous Seas	LOX		48 hr
Dec 18, 1:55 PM PST	Dense Fog Advisory	HNX		21 hr
Dec 18, 3:11 PM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	43 hr
Dec 18, 3:15 PM PST	Gale Warning	EKA		3 days
Dec 18, 8:00 PM PST	Small Craft Advisory	LOX		19 hr
Dec 18, 9:52 PM PST	Small Craft Advisory	MTR		17 hr
Dec 19, 8:49 AM PST	Dense Fog Advisory	STO		3 hr
Dec 19, 3:17 PM PST	Gale Watch	EKA		12 hr
Dec 19, 9:00 PM PST	Dense Fog Advisory	HNX		11 hr
Dec 20, 2:21 AM PST	Small Craft Advisory	MTR		36 hr
Dec 20, 3:11 AM PST	Dense Fog Advisory	STO		9 hr
Dec 20, 1:50 PM PST	High Wind Warning	SGX	Orange, Riverside, San Bernardino, San Diego	71 hr
Dec 20, 2:10 PM PST	High Wind Watch	LOX	Los Angeles	24 hr
Dec 20, 2:37 PM PST	Wind Advisory	VEF	San Bernardino	51 hr
Dec 20, 3:03 PM PST	Small Craft Advisory	EKA		30 hr
Dec 20, 8:46 PM PST	Dense Fog Advisory	STO		15 hr
Dec 20, 9:10 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	4 days
Dec 20, 9:11 PM PST	Wind Advisory	LOX	Los Angeles	4 days
Dec 20, 9:47 PM PST	Dense Fog Advisory	HNX		11 hr
Dec 21, 2:12 AM PST	Small Craft Advisory	MTR		37 hr
Dec 21, 2:50 AM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	36 hr
Dec 21, 3:10 AM PST	Hard Freeze Watch	EKA		11 hr
Dec 21, 3:22 AM PST	Gale Watch	LOX		11 hr
Dec 21, 4:01 AM PST	Wind Advisory	PSR		39 hr
Dec 21, 4:13 AM PST	High Wind Warning	LOX	Los Angeles	56 hr
Dec 21, 10:29 AM PST	Freeze Watch	HNX		17 hr
Dec 21, 1:48 PM PST	Freeze Watch	LOX		25 hr
Dec 21, 1:50 PM PST	Wind Advisory	HNX		29 hr
Dec 21, 2:03 PM PST	Freeze Warning	MTR	Marin, Napa, Sonoma	9 hr
Dec 21, 2:07 PM PST	Wind Advisory	STO		22 hr
Dec 21, 2:19 PM PST	Hard Freeze Warning	EKA		14 hr
Dec 21, 2:37 PM PST	Gale Warning	LOX		27 hr
Dec 21, 9:13 PM PST	Small Craft Advisory	LOX		39 hr
Dec 22, 1:10 AM PST	Wind Advisory	SGX	Riverside, San Diego	59 hr
Dec 22, 3:04 AM PST	Freeze Warning	HNX		6 days
Dec 22, 3:32 AM PST	Hard Freeze Warning	STO		3 days
Dec 22, 5:19 AM PST	Special Weather Statement	HNX	Kings	2 hr
Dec 22, 1:51 PM PST	Freeze Warning	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more	19 hr
Dec 22, 2:40 PM PST	Freeze Watch	LOX		13 hr
Dec 22, 2:40 PM PST	Freeze Warning	LOX		18 hr
Dec 22, 3:02 PM PST	Small Craft Advisory	EKA		54 hr
Dec 23, 3:08 AM PST	Small Craft Advisory for Rough Bar	MTR		36 hr
Dec 23, 3:49 AM PST	Freeze Warning	LOX		29 hr
Dec 23, 12:15 PM PST	Frost Advisory	LOX	Los Angeles	16 hr
Dec 23, 1:10 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	20 hr
Dec 23, 1:10 PM PST	Freeze Warning	SGX	Riverside, San Bernardino, San Diego	8 hr
Dec 23, 1:33 PM PST	Freeze Warning	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 3 more	19 hr
Dec 24, 3:40 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	29 hr
Dec 24, 3:54 AM PST	Frost Advisory	LOX		5 hr
Dec 24, 4:00 AM PST	Small Craft Advisory for Hazardous Seas	LOX		23 hr
Dec 24, 9:23 AM PST	High Surf Advisory	LOX		19 hr
Dec 24, 1:13 PM PST	Freeze Warning	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more	20 hr
Dec 24, 2:02 PM PST	Frost Advisory	LOX		19 hr
Dec 24, 9:08 PM PST	Small Craft Advisory	EKA		7 days
Dec 25, 2:20 PM PST	Small Craft Advisory for Rough Bar	MTR		31 hr
Dec 25, 2:20 PM PST	Small Craft Advisory	MTR		42 hr
Dec 25, 9:03 PM PST	Small Craft Advisory	LOX		54 hr
Dec 26, 2:14 AM PST	High Wind Watch	MFR	Modoc, Siskiyou	32 hr
Dec 26, 3:55 AM PST	High Surf Advisory	LOX		35 hr
Dec 27, 2:22 PM PST	Small Craft Advisory	MTR		37 hr
Dec 28, 3:04 AM PST	Small Craft Advisory	LOX		3 days
Dec 28, 2:39 PM PST	High Wind Watch	REV	Lassen, Mono, Plumas, Sierra	25 hr
Dec 29, 3:18 AM PST	Dense Fog Advisory	MTR	Marin, Napa, Sonoma	6 hr
Dec 29, 1:55 PM PST	Dense Fog Advisory	SGX	San Diego	19 hr
Dec 29, 2:25 PM PST	Small Craft Advisory	MTR		40 hr
Dec 29, 3:22 PM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	28 hr
Dec 29, 3:22 PM PST	Wind Advisory	REV	Lassen, Modoc, Mono, Plumas, Sierra	28 hr
Dec 29, 7:07 PM PST	Wind Advisory	MFR	Siskiyou	8 hr
Dec 29, 10:47 PM PST	Dense Fog Advisory	LOX		11 hr
Dec 30, 1:12 PM PST	Wind Advisory	MFR	Modoc, Siskiyou	4 hr
Dec 30, 1:25 PM PST	Dense Fog Advisory	SGX	San Diego	20 hr
Dec 30, 2:40 PM PST	Dense Fog Advisory	LOX		19 hr
Dec 30, 9:09 PM PST	Small Craft Advisory for Rough Bar	MTR		12 hr
Dec 31, 5:00 AM PST	Coastal Flood Statement	LOX	Los Angeles	8 hr
Dec 31, 5:05 AM PST	Coastal Flood Statement	SGX	San Diego	8 hr

By product

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

Product	Alerts
Severe storms
Special Weather Statement	9
Flooding
Areal Flood Advisory	2
Winter
Winter Storm Warning	5
Winter Storm Watch	3
Winter Weather Advisory	10
Cold
Freeze Warning	26
Hard Freeze Warning	3
Freeze Watch	11
Hard Freeze Watch	1
Frost Advisory	19
Wind and dust
High Wind Warning	8
High Wind Watch	8
Lake Wind Advisory	7
Wind Advisory	26
Fire
Red Flag Warning	4
Fire Weather Watch	5
Fog and smoke
Dense Fog Advisory	17
Coast and beach
High Surf Advisory	2
Coastal Flood Statement	2
Marine
Gale Warning	6
Hazardous Seas Warning	1
Special Marine Warning	6
Gale Watch	8
Small Craft Advisory	32
Small Craft Advisory for Hazardous Seas	4
Small Craft Advisory for Rough Bar	4

By county

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

Nearby

Alerts in force now Tornadoes on record The radar archive 2010 2012

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.