Weather alerts in California, December 2023

382 weather alerts in December 2023, 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 2023. Tap one for its archive.

Alerts: 382
Warnings: 80
Watches: 30
Advisories: 233
Busiest day: December 20, 202354 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
Dec 1, 3:06 AM PST	Small Craft Advisory	EKA		5 days
Dec 1, 2:06 PM PST	Small Craft Advisory	LOX		13 hr
Dec 1, 2:58 PM PST	Small Craft Advisory	MTR		8 days
Dec 1, 7:12 PM PST	Small Craft Advisory	LOX		8 hr
Dec 2, 3:10 AM PST	Small Craft Advisory	LOX		8 days
Dec 2, 9:30 AM PST	Flash Flood Watch	EKA	Del Norte	16 hr
Dec 2, 9:43 AM PST	Flood Watch	EKA	Del Norte, Humboldt	30 hr
Dec 2, 7:19 PM PST	Areal Flood Advisory	EKA	Del Norte, Humboldt	6 hr
Dec 2, 7:39 PM PST	Areal Flood Advisory	EKA	Humboldt	15 hr
Dec 3, 1:28 AM PST	Areal Flood Advisory	EKA	Del Norte, Humboldt	18 hr
Dec 3, 3:20 AM PST	Beach Hazards Statement	EKA	Del Norte, Humboldt, Mendocino	61 hr
Dec 3, 4:40 AM PST	Beach Hazards Statement	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	62 hr
Dec 3, 5:10 AM PST	Dense Fog Advisory	MTR	Monterey, San Benito, Santa Cruz	5 hr
Dec 3, 2:40 PM PST	Small Craft Advisory	MTR		5 days
Dec 3, 8:44 PM PST	Wind Advisory	LOX	Los Angeles, Ventura	15 hr
Dec 4, 1:28 AM PST	High Surf Advisory	LOX	San Luis Obispo, Santa Barbara	5 days
Dec 4, 2:21 AM PST	Marine Dense Fog Advisory	MTR		9 hr
Dec 4, 2:21 AM PST	Dense Fog Advisory	STO		8 hr
Dec 4, 2:22 AM PST	Dense Fog Advisory	MTR	Marin, Napa, Sonoma	8 hr
Dec 4, 2:50 AM PST	Hazardous Seas Warning	EKA		53 hr
Dec 4, 2:38 PM PST	High Surf Advisory	EKA	Del Norte, Humboldt, Mendocino	46 hr
Dec 4, 2:43 PM PST	Dense Fog Advisory	STO		16 hr
Dec 4, 3:14 PM PST	Dense Fog Advisory	HNX	Fresno, Kings, Madera, Merced, Tulare	18 hr
Dec 4, 5:56 PM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 3 more	17 hr
Dec 4, 5:57 PM PST	Marine Dense Fog Advisory	MTR		17 hr
Dec 4, 8:26 PM PST	High Surf Advisory	LOX	Ventura	4 days
Dec 4, 11:52 PM PST	Wind Advisory	VEF	Inyo	46 hr
Dec 5, 1:10 AM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	45 hr
Dec 5, 1:10 AM PST	Wind Advisory	REV	Mono	45 hr
Dec 5, 3:22 AM PST	Beach Hazards Statement	MTR	Santa Cruz	49 hr
Dec 5, 3:22 AM PST	High Surf Advisory	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	49 hr
Dec 5, 3:23 AM PST	Flood Watch	EKA	Del Norte, Humboldt	43 hr
Dec 5, 1:10 PM PST	Beach Hazards Statement	SGX	Orange, San Diego	61 hr
Dec 5, 1:37 PM PST	Winter Weather Advisory	STO		56 hr
Dec 5, 1:42 PM PST	Beach Hazards Statement	LOX	Los Angeles	3 days
Dec 5, 2:17 PM PST	Wind Advisory	MFR	Modoc, Siskiyou	32 hr
Dec 5, 2:32 PM PST	Winter Weather Advisory	MFR	Modoc, Siskiyou	61 hr
Dec 5, 2:46 PM PST	Gale Warning	EKA		17 hr
Dec 5, 3:02 PM PST	Winter Weather Advisory	EKA		48 hr
Dec 5, 8:09 PM PST	Gale Watch	LOX		25 hr
Dec 5, 8:20 PM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 3 more	12 hr
Dec 6, 2:55 AM PST	Wind Advisory	HNX	Kern	52 hr
Dec 6, 3:09 AM PST	Winter Weather Advisory	REV	Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more	40 hr
Dec 6, 3:27 AM PST	Flash Flood Watch	EKA	Del Norte	11 hr
Dec 6, 7:54 AM PST	Small Craft Advisory	EKA		55 hr
Dec 6, 11:53 AM PST	High Wind Watch	LOX	Los Angeles, Santa Barbara, Ventura	17 hr
Dec 6, 12:24 PM PST	Wind Advisory	SGX	Riverside, San Diego	40 hr
Dec 6, 1:00 PM PST	Small Craft Advisory	SGX		43 hr
Dec 6, 7:11 PM PST	Wind Advisory	LOX	Los Angeles, Santa Barbara	32 hr
Dec 6, 9:07 PM PST	Gale Warning	LOX		29 hr
Dec 7, 1:38 AM PST	Freeze Watch	HNX	Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more	26 hr
Dec 7, 3:04 AM PST	Special Marine Warning	EKA		26 min
Dec 7, 3:19 AM PST	Special Marine Warning	EKA		26 min
Dec 7, 3:37 AM PST	Special Marine Warning	EKA		23 min
Dec 7, 3:42 AM PST	Special Weather Statement	EKA	Humboldt	33 min
Dec 7, 3:56 AM PST	Special Marine Warning	EKA		34 min
Dec 7, 4:23 AM PST	Frost Advisory	MTR	Marin, Monterey, Napa, San Benito, Sonoma	10 hr
Dec 7, 4:23 AM PST	Freeze Watch	MTR	Marin, Monterey, Napa, San Benito, Sonoma	20 hr
Dec 7, 5:06 AM PST	High Wind Watch	LOX	Los Angeles, Ventura	22 hr
Dec 7, 5:06 AM PST	High Wind Warning	LOX	Los Angeles, Santa Barbara, Ventura	22 hr
Dec 7, 5:06 AM PST	Wind Advisory	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	3 days
Dec 7, 6:18 AM PST	Special Marine Warning	EKA		27 min
Dec 7, 6:19 AM PST	Special Marine Warning	EKA		26 min
Dec 7, 6:32 AM PST	Special Weather Statement	EKA		28 min
Dec 7, 6:43 AM PST	Special Marine Warning	EKA		32 min
Dec 7, 6:46 AM PST	Special Marine Warning	EKA		29 min
Dec 7, 6:55 AM PST	Special Weather Statement	EKA	Humboldt	35 min
Dec 7, 6:56 AM PST	Special Weather Statement	EKA	Humboldt	34 min
Dec 7, 7:13 AM PST	Special Weather Statement	EKA	Humboldt	32 min
Dec 7, 7:17 AM PST	Special Marine Warning	EKA		28 min
Dec 7, 7:49 AM PST	Special Weather Statement	EKA	Humboldt	26 min
Dec 7, 8:14 AM PST	Special Weather Statement	EKA		31 min
Dec 7, 9:30 AM PST	Special Weather Statement	EKA	Humboldt	30 min
Dec 7, 12:49 PM PST	Fire Weather Watch	SGX	Riverside, San Bernardino	24 hr
Dec 7, 1:12 PM PST	Wind Advisory	PSR	Imperial, Riverside	47 hr
Dec 7, 1:30 PM PST	Special Weather Statement	EKA	Humboldt	30 min
Dec 7, 1:58 PM PST	Special Weather Statement	EKA	Humboldt	32 min
Dec 7, 2:09 PM PST	Freeze Warning	MTR	Marin, Monterey, Napa, San Benito, Sonoma	19 hr
Dec 7, 3:35 PM PST	Fire Weather Watch	LOX	Santa Barbara, Ventura	18 hr
Dec 7, 3:35 PM PST	Fire Weather Watch	LOX	Los Angeles, Ventura	24 hr
Dec 8, 12:17 AM PST	Dense Fog Advisory	MTR	Santa Cruz	4 hr
Dec 8, 12:17 AM PST	Freeze Watch	MTR	Marin, Monterey, Napa, San Benito, Sonoma	24 hr
Dec 8, 12:17 AM PST	Freeze Warning	MTR	Marin, Monterey, Napa, San Benito, Sonoma	33 hr
Dec 8, 1:01 AM PST	Wind Advisory	VEF	San Bernardino	39 hr
Dec 8, 1:47 AM PST	Small Craft Advisory	LOX		7 hr
Dec 8, 3:17 AM PST	Freeze Warning	HNX	Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more	5 days
Dec 8, 3:20 AM PST	High Wind Warning	LOX	Los Angeles, Ventura	57 hr
Dec 8, 3:20 AM PST	Wind Advisory	LOX	Los Angeles	57 hr
Dec 8, 9:16 AM PST	Gale Watch	LOX		5 hr
Dec 8, 9:16 AM PST	Gale Warning	LOX		11 hr
Dec 8, 9:29 AM PST	Red Flag Warning	LOX	Santa Barbara, Ventura	21 hr
Dec 8, 12:07 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	51 hr
Dec 8, 12:38 PM PST	Red Flag Warning	SGX	Riverside, San Bernardino	50 hr
Dec 8, 2:20 PM PST	Gale Warning	LOX		24 hr
Dec 8, 3:10 PM PST	Red Flag Warning	LOX	Los Angeles, Ventura	48 hr
Dec 8, 11:19 PM PST	Dense Fog Advisory	HNX	Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more	11 hr
Dec 9, 12:21 AM PST	Frost Advisory	MTR	Marin, Monterey, Napa, San Benito, Sonoma	33 hr
Dec 9, 2:57 AM PST	Hard Freeze Warning	LOX	Los Angeles	29 hr
Dec 9, 3:01 AM PST	Small Craft Advisory	EKA		36 hr
Dec 9, 1:47 PM PST	Wind Advisory	LOX	Los Angeles	22 hr
Dec 10, 12:25 AM PST	Small Craft Advisory	MTR		69 hr
Dec 10, 9:04 AM PST	Small Craft Advisory	LOX		59 hr
Dec 11, 2:50 AM PST	Small Craft Advisory	EKA		29 hr
Dec 12, 12:16 AM PST	Dense Fog Advisory	LOX	Los Angeles	6 hr
Dec 12, 2:04 AM PST	Small Craft Advisory	LOX		7 hr
Dec 12, 4:14 AM PST	Dense Fog Advisory	MTR	Marin, Napa, Sonoma	7 hr
Dec 12, 7:29 AM PST	Marine Dense Fog Advisory	MTR		3 hr
Dec 12, 8:39 AM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	4 hr
Dec 12, 2:11 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	23 hr
Dec 12, 6:33 PM PST	Coastal Flood Advisory	EKA	Humboldt	18 hr
Dec 12, 8:44 PM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 3 more	14 hr
Dec 12, 11:50 PM PST	Marine Dense Fog Advisory	MTR		10 hr
Dec 13, 1:33 AM PST	Freeze Warning	MTR	Monterey, San Benito	7 hr
Dec 13, 4:35 AM PST	Wind Advisory	LOX	Los Angeles, Ventura	8 hr
Dec 13, 11:30 AM PST	Air Stagnation Advisory	MFR	Modoc, Siskiyou	4 days
Dec 13, 1:10 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	25 hr
Dec 13, 7:23 PM PST	Coastal Flood Advisory	EKA	Humboldt	18 hr
Dec 14, 2:23 AM PST	Small Craft Advisory	LOX		24 hr
Dec 14, 2:28 AM PST	Small Craft Advisory	MTR		45 hr
Dec 14, 1:47 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	24 hr
Dec 14, 2:58 PM PST	Small Craft Advisory	EKA		18 hr
Dec 15, 2:04 AM PST	Small Craft Advisory	LOX		7 hr
Dec 15, 2:04 AM PST	Small Craft Advisory	LOX		18 hr
Dec 15, 9:04 AM PST	Small Craft Advisory	EKA		3 days
Dec 15, 11:49 PM PST	Small Craft Advisory	MTR		4 days
Dec 16, 2:47 AM PST	Gale Watch	EKA		24 hr
Dec 16, 1:50 PM PST	Wind Advisory	MFR	Siskiyou	64 hr
Dec 16, 2:22 PM PST	Gale Warning	MTR		61 hr
Dec 17, 2:57 AM PST	Gale Watch	EKA		12 hr
Dec 17, 2:57 AM PST	Gale Warning	EKA		48 hr
Dec 17, 2:57 AM PST	Small Craft Advisory	EKA		36 hr
Dec 17, 3:36 AM PST	Wind Advisory	EKA	Del Norte, Humboldt, Mendocino, Trinity	48 hr
Dec 17, 5:36 AM PST	Special Marine Warning	MTR		39 min
Dec 17, 7:08 AM PST	Special Marine Warning	MTR		22 min
Dec 17, 12:36 PM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara, Santa Cruz	46 min
Dec 17, 12:39 PM PST	Areal Flood Advisory	MTR	Sonoma	66 min
Dec 17, 1:35 PM PST	Wind Advisory	STO		43 hr
Dec 17, 1:58 PM PST	Special Weather Statement	MTR	San Benito	32 min
Dec 17, 2:01 PM PST	Special Weather Statement	MTR	San Benito	29 min
Dec 17, 2:19 PM PST	Special Weather Statement	HNX	Merced	26 min
Dec 17, 2:29 PM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	46 hr
Dec 17, 2:30 PM PST	Special Weather Statement	HNX	San Benito	30 min
Dec 17, 3:22 PM PST	Winter Weather Advisory	REV	Lassen, Modoc, Plumas, Sierra	21 hr
Dec 17, 7:17 PM PST	Small Craft Advisory	LOX		4 days
Dec 17, 11:21 PM PST	Special Marine Warning	MTR		39 min
Dec 18, 12:26 AM PST	Special Marine Warning	MTR		37 min
Dec 18, 12:32 AM PST	Winter Storm Watch	HNX	Fresno, Madera, Mariposa, Tulare, Tuolumne	12 hr
Dec 18, 1:00 AM PST	Special Weather Statement	EKA	Del Norte	30 min
Dec 18, 5:22 AM PST	Areal Flood Advisory	MTR	Marin, City and County of San Francisco	3 hr
Dec 18, 5:33 AM PST	Areal Flood Advisory	MTR	Alameda, Contra Costa	3 hr
Dec 18, 5:43 AM PST	Areal Flood Advisory	MTR	Napa, Sonoma	3 hr
Dec 18, 6:47 AM PST	Areal Flood Advisory	EKA	Lake, Mendocino	3 hr
Dec 18, 7:57 AM PST	Wind Advisory	EKA	Del Norte	20 hr
Dec 18, 12:03 PM PST	Winter Storm Warning	HNX	Fresno, Madera, Mariposa, Tulare, Tuolumne	70 hr
Dec 18, 11:20 PM PST	Flood Watch	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	4 days
Dec 19, 2:37 AM PST	Small Craft Advisory	MTR		60 hr
Dec 19, 3:00 AM PST	Small Craft Advisory	EKA		6 hr
Dec 19, 7:52 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara, Santa Cruz	113 min
Dec 19, 8:46 AM PST	Small Craft Advisory	EKA		10 hr
Dec 19, 1:01 PM PST	Flood Watch	SGX	Orange, Riverside, San Bernardino, San Diego	25 hr
Dec 19, 1:26 PM PST	Gale Warning	MTR		25 hr
Dec 19, 1:33 PM PST	Winter Storm Watch	SGX	San Bernardino	24 hr
Dec 19, 1:49 PM PST	Small Craft Advisory	SGX		60 hr
Dec 19, 2:15 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	17 hr
Dec 19, 3:49 PM PST	Wind Advisory	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	39 hr
Dec 19, 3:53 PM PST	Flood Watch	HNX	Fresno, Kern, Kings	52 hr
Dec 19, 3:54 PM PST	Wind Advisory	HNX	Kern	33 hr
Dec 19, 5:18 PM PST	Special Weather Statement	HNX	Merced	27 min
Dec 19, 5:45 PM PST	Special Weather Statement	HNX	Merced	30 min
Dec 19, 6:09 PM PST	Areal Flood Advisory	STO	Placer, Sacramento, Solano, Sutter, Yolo	3 hr
Dec 19, 8:35 PM PST	Small Craft Advisory	EKA		2 hr
Dec 19, 9:01 PM PST	Small Craft Advisory	LOX		59 hr
Dec 19, 9:32 PM PST	Wind Advisory	MTR	Monterey	21 hr
Dec 19, 10:34 PM PST	Areal Flood Advisory	EKA	Humboldt	4 hr
Dec 20, 1:00 AM PST	Areal Flood Advisory	EKA	Mendocino	3 hr
Dec 20, 1:23 AM PST	Areal Flood Advisory	EKA	Lake	5 hr
Dec 20, 1:48 AM PST	Flood Watch	SGX	Orange, Riverside, San Bernardino, San Diego	12 hr
Dec 20, 2:34 AM PST	Small Craft Advisory	MTR		24 hr
Dec 20, 2:46 AM PST	Small Craft Advisory	EKA		27 hr
Dec 20, 2:47 AM PST	Areal Flood Advisory	EKA	Humboldt	3 hr
Dec 20, 4:06 AM PST	Special Marine Warning	MTR		39 min
Dec 20, 4:29 AM PST	Areal Flood Advisory	MTR	Marin, Sonoma	4 hr
Dec 20, 6:14 AM PST	Areal Flood Advisory	MTR	Monterey	3 hr
Dec 20, 6:16 AM PST	Special Marine Warning	LOX		44 min
Dec 20, 6:18 AM PST	Areal Flood Advisory	MTR	Santa Clara, Santa Cruz	3 hr
Dec 20, 6:23 AM PST	Special Marine Warning	MTR		22 min
Dec 20, 6:44 AM PST	Areal Flood Advisory	MTR	Monterey, Santa Cruz	2 hr
Dec 20, 6:46 AM PST	Areal Flood Advisory	MTR	Alameda, Contra Costa, Santa Clara	119 min
Dec 20, 6:47 AM PST	Special Marine Warning	MTR		13 min
Dec 20, 6:49 AM PST	Areal Flood Advisory	MTR	Monterey	116 min
Dec 20, 6:59 AM PST	Special Marine Warning	MTR		31 min
Dec 20, 7:01 AM PST	Areal Flood Advisory	MTR	Monterey, Santa Clara, Santa Cruz	106 min
Dec 20, 7:20 AM PST	Special Weather Statement	MTR	Santa Cruz	25 min
Dec 20, 7:25 AM PST	Areal Flood Advisory	MTR	Santa Clara, Santa Cruz	65 min
Dec 20, 7:32 AM PST	Areal Flood Advisory	MTR	City and County of San Francisco, San Mateo	4 hr
Dec 20, 7:45 AM PST	Areal Flood Advisory	MTR	Monterey	106 min
Dec 20, 7:47 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara, Santa Cruz	58 min
Dec 20, 8:13 AM PST	Special Weather Statement	MTR	Monterey	17 min
Dec 20, 8:41 AM PST	Areal Flood Advisory	MTR	Marin, Sonoma	3 hr
Dec 20, 8:47 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara, Santa Cruz	118 min
Dec 20, 8:54 AM PST	Areal Flood Advisory	MTR	Alameda, Contra Costa	2 hr
Dec 20, 8:58 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito	2 hr
Dec 20, 9:22 AM PST	Special Marine Warning	LOX		53 min
Dec 20, 9:29 AM PST	Areal Flood Advisory	MTR	Monterey	61 min
Dec 20, 9:31 AM PST	Areal Flood Advisory	MTR	Sonoma	3 hr
Dec 20, 9:45 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara	60 min
Dec 20, 10:03 AM PST	Special Marine Warning	LOX		42 min
Dec 20, 10:46 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara, Santa Cruz	50 min
Dec 20, 11:02 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito	33 min
Dec 20, 11:38 AM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara	4 hr
Dec 20, 11:52 AM PST	Areal Flood Advisory	LOX	Los Angeles, Ventura	4 hr
Dec 20, 12:05 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	21 hr
Dec 20, 12:17 PM PST	Areal Flood Advisory	LOX	San Luis Obispo	4 hr
Dec 20, 12:27 PM PST	Areal Flood Advisory	LOX	Santa Barbara	4 hr
Dec 20, 1:17 PM PST	Winter Weather Advisory	SGX	Riverside, San Bernardino	63 hr
Dec 20, 1:54 PM PST	Flood Watch	SGX	Riverside, San Bernardino, San Diego	8 hr
Dec 20, 1:54 PM PST	Flood Watch	SGX	Orange, Riverside, San Bernardino, San Diego	56 hr
Dec 20, 2:23 PM PST	Areal Flood Advisory	LOX	San Luis Obispo, Santa Barbara	97 min
Dec 20, 3:35 PM PST	Areal Flood Advisory	LOX	Los Angeles	3 hr
Dec 20, 3:59 PM PST	Areal Flood Advisory	LOX	San Luis Obispo, Santa Barbara	6 hr
Dec 20, 3:59 PM PST	Areal Flood Warning	MTR	Monterey, San Benito, Santa Clara	3 hr
Dec 20, 5:19 PM PST	Areal Flood Advisory	MTR	San Benito	3 hr
Dec 20, 5:30 PM PST	Areal Flood Advisory	HNX	Fresno, Madera	3 hr
Dec 20, 7:24 PM PST	Areal Flood Advisory	LOX	Los Angeles	3 hr
Dec 20, 7:35 PM PST	Special Marine Warning	LOX		25 min
Dec 20, 7:42 PM PST	Special Weather Statement	LOX	Santa Barbara	48 min
Dec 20, 7:50 PM PST	Dense Fog Advisory	MFR	Siskiyou	14 hr
Dec 20, 8:06 PM PST	Special Marine Warning	LOX		24 min
Dec 20, 8:32 PM PST	Special Marine Warning	LOX		118 min
Dec 20, 9:35 PM PST	Flash Flood Warning Considerable damage threat	LOX	Santa Barbara, Ventura	3 hr
Dec 20, 11:14 PM PST	Flood Watch	PSR	Imperial, Riverside, San Bernardino	49 hr
Dec 21, 12:38 AM PST	Special Marine Warning	LOX		52 min
Dec 21, 1:18 AM PST	Areal Flood Advisory	LOX	Ventura	3 hr
Dec 21, 1:25 AM PST	Special Weather Statement	LOX	Ventura	65 min
Dec 21, 1:28 AM PST	Tornado Warning	LOX	Ventura	32 min
Dec 21, 1:52 AM PST	Flash Flood Warning Considerable damage threat	LOX	Ventura	113 min
Dec 21, 1:56 AM PST	Tornado Warning	LOX	Ventura	34 min
Dec 21, 1:56 AM PST	Mesoscale Discussion	SPC	Ventura	94 min
Dec 21, 2:41 AM PST	Small Craft Advisory	MTR		3 days
Dec 21, 2:52 AM PST	Areal Flood Advisory	LOX	Los Angeles	3 hr
Dec 21, 3:59 AM PST	Areal Flood Advisory	LOX	Los Angeles, Ventura	12 hr
Dec 21, 4:05 AM PST	Special Marine Warning	LOX		25 min
Dec 21, 7:28 AM PST	Areal Flood Advisory	LOX	Santa Barbara	6 hr
Dec 21, 8:42 AM PST	Flash Flood Warning Considerable damage threat	LOX	Santa Barbara	7 hr
Dec 21, 8:52 AM PST	Special Marine Warning	LOX		113 min
Dec 21, 9:09 AM PST	Special Weather Statement	LOX	Santa Barbara	36 min
Dec 21, 11:12 AM PST	Areal Flood Advisory	LOX	Los Angeles	5 hr
Dec 21, 11:44 AM PST	Areal Flood Advisory	MTR	Monterey	2 hr
Dec 21, 11:53 AM PST	Flood Watch	VEF	San Bernardino	33 hr
Dec 21, 12:22 PM PST	Areal Flood Advisory	LOX	Los Angeles	4 hr
Dec 21, 12:38 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	21 hr
Dec 21, 1:49 PM PST	Special Weather Statement	LOX	Los Angeles	26 min
Dec 21, 1:58 PM PST	Areal Flood Advisory	HNX	Kern	2 hr
Dec 21, 2:18 PM PST	Special Weather Statement	LOX	Los Angeles	12 min
Dec 21, 2:50 PM PST	Special Marine Warning	LOX		55 min
Dec 21, 2:56 PM PST	Gale Watch	EKA		13 hr
Dec 21, 2:56 PM PST	Small Craft Advisory	EKA		54 hr
Dec 21, 3:34 PM PST	Areal Flood Advisory	LOX	Los Angeles, Ventura	9 hr
Dec 21, 3:40 PM PST	Special Marine Warning	LOX		2 hr
Dec 21, 3:54 PM PST	Areal Flood Warning	LOX	Santa Barbara	9 hr
Dec 21, 4:02 PM PST	Special Weather Statement	LOX	Santa Barbara	88 min
Dec 21, 5:36 PM PST	Wind Advisory	LOX	Santa Barbara, Ventura	5 hr
Dec 21, 6:01 PM PST	Dense Fog Advisory	STO		16 hr
Dec 21, 6:34 PM PST	Dense Fog Advisory	MFR	Modoc, Siskiyou	12 hr
Dec 21, 6:39 PM PST	Special Marine Warning	LOX		111 min
Dec 21, 6:47 PM PST	Beach Hazards Statement	SGX	Orange, San Diego	15 hr
Dec 21, 7:01 PM PST	Dense Fog Advisory	EKA	Humboldt	8 hr
Dec 21, 8:51 PM PST	Dense Fog Advisory	HNX	Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more	12 hr
Dec 21, 10:01 PM PST	Special Marine Warning	SGX		59 min
Dec 21, 11:29 PM PST	Areal Flood Advisory	SGX	Orange, San Diego	116 min
Dec 21, 11:51 PM PST	Special Weather Statement	SGX	San Diego	39 min
Dec 22, 12:55 AM PST	Areal Flood Advisory	LOX	Los Angeles, Ventura	3 hr
Dec 22, 1:42 AM PST	Dense Fog Advisory	MTR	Marin, Napa, Sonoma	8 hr
Dec 22, 2:38 AM PST	Gale Warning	MTR		30 hr
Dec 22, 2:48 AM PST	Beach Hazards Statement	LOX	Los Angeles, Santa Barbara, Ventura	6 days
Dec 22, 2:48 AM PST	High Surf Advisory	LOX	Los Angeles, San Luis Obispo, Santa Barbara	7 days
Dec 22, 3:05 AM PST	Flash Flood Warning Considerable damage threat	VEF	San Bernardino	3 hr
Dec 22, 3:30 AM PST	Gale Warning	EKA		30 hr
Dec 22, 3:30 AM PST	Hazardous Seas Warning	EKA		42 hr
Dec 22, 4:09 AM PST	Areal Flood Advisory	SGX	Riverside	4 hr
Dec 22, 8:21 AM PST	Small Craft Advisory	LOX		48 hr
Dec 22, 9:29 AM PST	Areal Flood Advisory	VEF	San Bernardino	6 hr
Dec 22, 9:33 AM PST	Special Marine Warning	SGX		42 min
Dec 22, 9:35 AM PST	Areal Flood Advisory	SGX	San Diego	3 hr
Dec 22, 9:47 AM PST	Areal Flood Advisory	SGX	San Bernardino	117 min
Dec 22, 10:36 AM PST	Areal Flood Advisory	VEF	San Bernardino	4 hr
Dec 22, 10:37 AM PST	Beach Hazards Statement	SGX	Orange, San Diego	5 hr
Dec 22, 10:52 AM PST	Areal Flood Advisory	HNX	Kern	3 hr
Dec 22, 11:13 AM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	23 hr
Dec 22, 12:12 PM PST	Areal Flood Advisory	SGX	San Diego	118 min
Dec 22, 1:35 PM PST	Areal Flood Advisory	VEF	San Bernardino	2 hr
Dec 22, 4:02 PM PST	Areal Flood Advisory	VEF	San Bernardino	117 min
Dec 22, 4:17 PM PST	Freezing Fog Advisory	REV	Lassen, Plumas, Sierra	8 hr
Dec 22, 5:24 PM PST	Flash Flood Warning Considerable damage threat	PSR	Imperial, Riverside	4 hr
Dec 22, 8:12 PM PST	Dense Fog Advisory	HNX	Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more	14 hr
Dec 23, 2:14 AM PST	Dense Fog Advisory	STO		6 hr
Dec 23, 3:46 AM PST	Coastal Flood Advisory	EKA	Humboldt	6 hr
Dec 23, 3:46 AM PST	Coastal Flood Advisory	EKA	Humboldt	31 hr
Dec 23, 3:49 AM PST	Dense Fog Advisory	VEF	Inyo, San Bernardino	6 hr
Dec 23, 6:18 AM PST	Dense Fog Advisory	PSR	Imperial, Riverside	4 hr
Dec 23, 9:45 AM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	25 hr
Dec 23, 8:37 PM PST	Small Craft Advisory	EKA		66 hr
Dec 23, 8:44 PM PST	Beach Hazards Statement	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	46 hr
Dec 24, 3:17 AM PST	Dense Fog Advisory	PSR	Imperial, Riverside	7 hr
Dec 24, 5:12 AM PST	Dense Fog Advisory	STO		8 hr
Dec 24, 8:08 AM PST	Small Craft Advisory	MTR		8 days
Dec 24, 10:40 AM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	24 hr
Dec 24, 2:03 PM PST	High Wind Watch	MFR	Siskiyou	12 hr
Dec 24, 2:52 PM PST	Gale Watch	EKA		12 hr
Dec 24, 7:11 PM PST	Dense Fog Advisory	HNX	Fresno, Kern, Madera, Mariposa, Merced	16 hr
Dec 24, 7:27 PM PST	Dense Fog Advisory	STO		16 hr
Dec 24, 8:47 PM PST	Small Craft Advisory	LOX		7 days
Dec 24, 9:08 PM PST	Storm Watch	EKA		17 hr
Dec 25, 2:27 AM PST	High Wind Warning	MFR	Modoc, Siskiyou	62 hr
Dec 25, 2:27 AM PST	Wind Advisory	MFR	Modoc, Siskiyou	62 hr
Dec 25, 3:02 AM PST	Gale Warning	EKA		60 hr
Dec 25, 3:16 AM PST	Wind Advisory	EKA	Del Norte, Humboldt, Mendocino	64 hr
Dec 25, 3:19 AM PST	Coastal Flood Advisory	EKA	Humboldt	8 hr
Dec 25, 10:37 AM PST	Gale Warning	MTR		58 hr
Dec 25, 10:50 AM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more	26 hr
Dec 25, 1:40 PM PST	High Surf Advisory	LOX	Ventura	62 hr
Dec 25, 2:30 PM PST	Storm Warning	EKA		46 hr
Dec 25, 5:41 PM PST	Coastal Flood Advisory	EKA	Humboldt	18 hr
Dec 25, 10:13 PM PST	High Surf Warning	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	5 days
Dec 25, 11:44 PM PST	High Surf Warning	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	3 days
Dec 26, 3:01 AM PST	Coastal Flood Advisory	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	3 days
Dec 26, 3:08 AM PST	Winter Weather Advisory	EKA		39 hr
Dec 26, 3:13 AM PST	High Surf Warning	EKA	Del Norte, Humboldt, Mendocino	65 hr
Dec 26, 6:17 AM PST	Dense Fog Advisory	HNX	Fresno, Kings, Tulare	5 hr
Dec 26, 9:28 AM PST	Coastal Flood Warning	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	5 days
Dec 26, 12:16 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, City and County of San Francisco and 4 more	44 hr
Dec 26, 12:38 PM PST	Lake Wind Advisory	REV	Alpine, El Dorado, Nevada, Placer	31 hr
Dec 26, 12:52 PM PST	High Surf Advisory	SGX	Orange, San Diego	54 hr
Dec 26, 1:39 PM PST	Coastal Flood Advisory	EKA	Del Norte, Humboldt	23 hr
Dec 26, 8:05 PM PST	Wind Advisory	MTR	Marin, Sonoma	20 hr
Dec 27, 11:47 AM PST	Hazardous Seas Warning	EKA		33 hr
Dec 27, 11:53 AM PST	Small Craft Advisory	SGX		5 days
Dec 27, 1:16 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 1 more	104 min
Dec 27, 1:16 PM PST	Coastal Flood Advisory	MTR	Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 1 more	24 hr
Dec 27, 1:41 PM PST	High Surf Warning	SGX	Orange, San Diego	5 days
Dec 27, 2:37 PM PST	Wind Advisory	MFR	Siskiyou	52 hr
Dec 27, 5:00 PM PST	Coastal Flood Advisory	EKA	Humboldt	20 hr
Dec 27, 9:01 PM PST	Coastal Flood Advisory	SGX	Orange, San Diego	4 days
Dec 28, 2:25 AM PST	Gale Warning	MTR		42 hr
Dec 28, 2:45 AM PST	Gale Warning	EKA		36 hr
Dec 28, 5:47 AM PST	Wind Advisory	EKA	Del Norte, Humboldt, Mendocino	33 hr
Dec 28, 8:10 AM PST	Coastal Flood Warning	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	7 hr
Dec 28, 9:05 AM PST	Areal Flood Advisory	MTR	Monterey	20 hr
Dec 28, 11:02 AM PST	Winter Weather Advisory	HNX	Fresno, Kern, Madera, Mariposa, Tulare, Tuolumne	50 hr
Dec 28, 11:09 AM PST	Winter Weather Advisory	STO		48 hr
Dec 28, 12:34 PM PST	Winter Weather Advisory	REV	Alpine, El Dorado, Mono, Nevada, Placer	50 hr
Dec 28, 1:35 PM PST	Wind Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more	29 hr
Dec 28, 2:07 PM PST	Wind Advisory	HNX	Fresno, Kern, Kings, Merced	35 hr
Dec 28, 3:00 PM PST	Coastal Flood Advisory	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	23 hr
Dec 28, 8:57 PM PST	Small Craft Advisory	EKA		60 hr
Dec 28, 9:01 PM PST	Gale Warning	MTR		23 hr
Dec 29, 3:12 AM PST	High Surf Advisory	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	11 hr
Dec 29, 1:43 PM PST	Winter Weather Advisory	SGX	Riverside, San Bernardino	32 hr
Dec 29, 1:55 PM PST	High Surf Advisory	EKA	Del Norte, Humboldt, Mendocino	16 hr
Dec 29, 1:58 PM PST	Coastal Flood Warning	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	24 hr
Dec 29, 1:58 PM PST	High Surf Warning	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	24 hr
Dec 29, 2:55 PM PST	Hazardous Seas Warning	EKA		11 hr
Dec 29, 3:00 PM PST	Areal Flood Advisory	MTR	Marin, Napa, Sonoma	4 hr
Dec 29, 3:57 PM PST	Areal Flood Advisory	MTR	Marin, Napa, Sonoma	5 hr
Dec 29, 4:31 PM PST	Areal Flood Advisory	MTR	Alameda, Contra Costa, City and County of San Francisco, San Mateo	5 hr
Dec 29, 5:47 PM PST	Areal Flood Advisory	MTR	San Mateo, Santa Clara, Santa Cruz	5 hr
Dec 29, 6:14 PM PST	Areal Flood Advisory	MTR	Napa, Sonoma	3 hr
Dec 29, 8:03 PM PST	Areal Flood Advisory	MTR	Monterey	4 hr
Dec 29, 8:24 PM PST	Small Craft Advisory	LOX		48 hr
Dec 29, 8:41 PM PST	Areal Flood Advisory	MTR	Monterey, San Benito, Santa Clara, Santa Cruz	4 hr
Dec 29, 11:36 PM PST	Areal Flood Advisory	LOX	San Luis Obispo, Santa Barbara	5 hr
Dec 30, 1:33 AM PST	Special Marine Warning	LOX		45 min
Dec 30, 2:02 AM PST	Areal Flood Advisory	LOX	Santa Barbara	6 hr
Dec 30, 3:38 AM PST	Special Weather Statement	LOX	Ventura	22 min
Dec 30, 4:07 AM PST	Special Weather Statement	LOX	Ventura	23 min
Dec 30, 4:54 AM PST	Areal Flood Advisory	LOX	Ventura	3 hr
Dec 30, 5:43 AM PST	Areal Flood Advisory	LOX	Los Angeles, Ventura	6 hr
Dec 30, 6:06 AM PST	Special Weather Statement	LOX	Los Angeles	24 min
Dec 30, 1:38 PM PST	High Surf Advisory	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	14 hr
Dec 30, 9:28 PM PST	Coastal Flood Advisory	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	21 hr
Dec 30, 9:28 PM PST	High Surf Advisory	LOX	Los Angeles, San Luis Obispo, Santa Barbara, Ventura	36 hr
Dec 31, 8:41 AM PST	Small Craft Advisory	MTR		12 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
Tornado Warning	2
Mesoscale Discussion	1
Special Weather Statement	29
Flooding
Areal Flood Warning	2
Flash Flood Warning	5
Flash Flood Watch	2
Flood Watch	10
Areal Flood Advisory	77
Winter
Winter Storm Warning	1
Winter Storm Watch	2
Winter Weather Advisory	11
Cold
Freeze Warning	4
Hard Freeze Warning	1
Freeze Watch	3
Frost Advisory	2
Wind and dust
High Wind Warning	3
High Wind Watch	3
Lake Wind Advisory	3
Wind Advisory	29
Fire
Red Flag Warning	3
Fire Weather Watch	3
Fog and smoke
Air Stagnation Advisory	1
Dense Fog Advisory	27
Freezing Fog Advisory	1
Coast and beach
Coastal Flood Warning	3
High Surf Warning	5
Coastal Flood Advisory	26
High Surf Advisory	11
Beach Hazards Statement	9
Marine
Gale Warning	14
Hazardous Seas Warning	4
Special Marine Warning	32
Storm Warning	1
Gale Watch	6
Storm Watch	1
Marine Dense Fog Advisory	4
Small Craft Advisory	41

By county

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

8 more counties

Nearby

Alerts in force now Tornadoes on record The radar archive 2022 2024

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. Warning verification from the Mesonet's Cow. Rebuilt daily.