Weather alerts in California, January 2015

109 weather alerts in January 2015, 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 January 2015. Tap one for its archive.

Alerts: 109
Warnings: 10
Watches: 4
Advisories: 88
Busiest day: January 23, 201512 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 31, 10:32 PM PST	Frost Advisory	LOX		10 hr
Jan 1, 3:08 AM PST	Freeze Watch	LOX		6 hr
Jan 1, 3:08 AM PST	Freeze Warning	LOX	Los Angeles	30 hr
Jan 1, 3:08 AM PST	Hard Freeze Warning	LOX		30 hr
Jan 1, 8:47 AM PST	Frost Advisory	LOX		24 hr
Jan 1, 12:42 PM PST	Freeze Warning	SGX	Riverside, San Bernardino, San Diego	19 hr
Jan 1, 1:41 PM PST	Frost Advisory	MTR	Alameda, Contra Costa, San Mateo, Santa Clara	19 hr
Jan 1, 1:41 PM PST	Freeze Warning	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more	19 hr
Jan 2, 2:51 AM PST	Freeze Warning	LOX		30 hr
Jan 2, 10:42 AM PST	Frost Advisory	MTR	Alameda, Contra Costa, San Mateo, Santa Clara	22 hr
Jan 2, 10:42 AM PST	Freeze Warning	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more	22 hr
Jan 2, 1:26 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	19 hr
Jan 2, 4:29 PM PST	Frost Advisory	LOX	Los Angeles	17 hr
Jan 5, 12:25 AM PST	Wind Advisory	LOX	Los Angeles	15 hr
Jan 5, 2:29 AM PST	Small Craft Advisory	LOX		10 hr
Jan 8, 2:38 AM PST	High Surf Advisory	LOX		40 hr
Jan 9, 11:34 PM PST	Dense Fog Advisory	SGX	Riverside, San Bernardino, San Diego	5 hr
Jan 11, 6:14 AM PST	Dense Fog Advisory	MTR	Marin, Monterey, Napa, San Benito, Santa Clara, Sonoma	5 hr
Jan 11, 6:46 AM PST	Marine Dense Fog Advisory	MTR		3 hr
Jan 11, 7:37 AM PST	Areal Flood Advisory	HNX	Kern	3 hr
Jan 11, 8:13 AM PST	Dense Fog Advisory	STO		3 hr
Jan 11, 10:15 AM PST	Areal Flood Advisory	HNX	Kern	3 hr
Jan 11, 11:22 AM PST	Areal Flood Advisory	SGX	San Bernardino	3 hr
Jan 11, 8:45 PM PST	Dense Fog Advisory	HNX		15 hr
Jan 12, 2:13 AM PST	Dense Fog Advisory	MTR	Marin, Monterey, Napa, San Benito, Sonoma	8 hr
Jan 12, 2:37 AM PST	Marine Dense Fog Advisory	MTR		7 hr
Jan 12, 2:57 AM PST	Dense Fog Advisory	LOX	Los Angeles	6 hr
Jan 12, 3:27 AM PST	Dense Fog Advisory	SGX	Riverside, San Bernardino	6 hr
Jan 12, 4:45 AM PST	Dense Fog Advisory	STO		6 hr
Jan 12, 1:58 PM PST	Small Craft Advisory	MTR		19 hr
Jan 12, 5:45 PM PST	Small Craft Advisory	LOX		9 hr
Jan 12, 6:50 PM PST	Dense Fog Advisory	HNX		17 hr
Jan 13, 3:30 AM PST	Dense Fog Advisory	STO		8 hr
Jan 13, 7:49 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Monterey, San Benito, City and County of San Francisco, San Mateo and 1 more	2 hr
Jan 13, 7:49 AM PST	Marine Dense Fog Advisory	MTR		2 hr
Jan 13, 7:25 PM PST	Wind Advisory	LOX		7 hr
Jan 13, 9:12 PM PST	Dense Fog Advisory	STO		14 hr
Jan 13, 9:19 PM PST	Dense Fog Advisory	HNX		17 hr
Jan 14, 1:15 AM PST	Dense Fog Advisory	LOX		11 hr
Jan 14, 4:23 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa	6 hr
Jan 14, 10:07 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa	53 min
Jan 14, 11:05 AM PST	Dense Fog Advisory	STO		55 min
Jan 14, 2:35 PM PST	Wind Advisory	MFR	Siskiyou	43 hr
Jan 14, 3:13 PM PST	Small Craft Advisory	EKA		44 hr
Jan 14, 4:23 PM PST	Dense Fog Advisory	HNX		20 hr
Jan 14, 5:45 PM PST	Dense Fog Advisory	STO		18 hr
Jan 14, 8:12 PM PST	Frost Advisory	LOX		12 hr
Jan 15, 2:37 AM PST	Gale Warning	EKA		24 hr
Jan 15, 3:11 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa	8 hr
Jan 15, 1:00 PM PST	Dense Fog Advisory	HNX		14 hr
Jan 16, 2:21 AM PST	Small Craft Advisory	LOX		25 hr
Jan 16, 11:36 AM PST	Small Craft Advisory	EKA		5 days
Jan 16, 9:15 PM PST	Dense Fog Advisory	HNX		15 hr
Jan 17, 2:45 AM PST	High Wind Warning	MFR	Modoc	31 hr
Jan 17, 2:45 AM PST	Wind Advisory	MFR	Modoc, Siskiyou	37 hr
Jan 18, 3:07 AM PST	Small Craft Advisory	MTR		72 hr
Jan 18, 1:07 PM PST	Beach Hazards Statement	SGX	San Diego	70 hr
Jan 18, 5:00 PM PST	Coastal Flood Statement	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, City and County of San Francisco and 4 more	69 hr
Jan 18, 9:08 PM PST	Small Craft Advisory	LOX		60 hr
Jan 18, 10:24 PM PST	Beach Hazards Statement	LOX	Los Angeles	49 hr
Jan 19, 9:38 PM PST	Dense Fog Advisory	LOX		11 hr
Jan 20, 1:21 AM PST	Dense Fog Advisory	SGX	San Diego	9 hr
Jan 20, 2:48 AM PST	Lake Wind Advisory	VEF	San Bernardino	39 hr
Jan 20, 7:43 AM PST	Marine Dense Fog Advisory	MTR		2 hr
Jan 20, 7:48 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, San Mateo, Santa Clara	2 hr
Jan 21, 7:20 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Marin, Napa, Sonoma	3 hr
Jan 21, 7:37 AM PST	Marine Dense Fog Advisory	MTR		2 hr
Jan 21, 9:22 AM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	29 hr
Jan 21, 1:43 PM PST	High Surf Advisory	MTR	Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma	4 days
Jan 22, 3:15 AM PST	Small Craft Advisory	EKA		66 hr
Jan 22, 4:08 AM PST	Wind Advisory	LOX	Los Angeles	8 hr
Jan 22, 2:01 PM PST	High Wind Watch	SGX	Orange, Riverside, San Bernardino, San Diego	12 hr
Jan 22, 2:07 PM PST	Small Craft Advisory for Rough Bar	MTR		52 hr
Jan 22, 2:09 PM PST	High Surf Advisory	LOX	Los Angeles	56 hr
Jan 22, 2:58 PM PST	High Wind Watch	LOX		14 hr
Jan 23, 2:05 AM PST	Dense Fog Advisory	HNX		9 hr
Jan 23, 2:30 AM PST	High Wind Warning	SGX	Orange, Riverside, San Bernardino, San Diego	62 hr
Jan 23, 2:32 AM PST	Beach Hazards Statement	LOX	Los Angeles	12 hr
Jan 23, 2:49 AM PST	Beach Hazards Statement	SGX	San Diego	11 hr
Jan 23, 3:05 AM PST	Dense Fog Advisory	STO		9 hr
Jan 23, 4:51 AM PST	High Wind Watch	LOX	Los Angeles	10 hr
Jan 23, 4:51 AM PST	High Wind Warning	LOX	Los Angeles	41 hr
Jan 23, 4:51 AM PST	Wind Advisory	LOX	Los Angeles	58 hr
Jan 23, 8:46 AM PST	Small Craft Advisory for Hazardous Seas	LOX		42 hr
Jan 23, 1:36 PM PST	High Surf Advisory	SGX	San Diego	28 hr
Jan 23, 2:27 PM PST	Small Craft Advisory	LOX		43 hr
Jan 23, 2:52 PM PST	Lake Wind Advisory	VEF	San Bernardino	28 hr
Jan 23, 10:52 PM PST	Dense Fog Advisory	STO		12 hr
Jan 24, 2:25 AM PST	Dense Fog Advisory	HNX		10 hr
Jan 24, 3:14 PM PST	Wind Advisory	SGX	Orange, Riverside, San Bernardino, San Diego	25 hr
Jan 24, 6:00 PM PST	Beach Hazards Statement	LOX	Los Angeles	17 hr
Jan 24, 6:05 PM PST	Beach Hazards Statement	SGX	San Diego	22 hr
Jan 24, 7:45 PM PST	Dense Fog Advisory	HNX		16 hr
Jan 25, 5:24 AM PST	Dense Fog Advisory	MFR	Siskiyou	6 hr
Jan 25, 8:15 AM PST	Dense Fog Advisory	STO		3 hr
Jan 26, 2:33 AM PST	Winter Weather Advisory	SGX	Riverside, San Bernardino	18 hr
Jan 26, 4:50 AM PST	Dense Fog Advisory	HNX		5 hr
Jan 28, 3:41 AM PST	Dense Fog Advisory	HNX		8 hr
Jan 28, 2:16 PM PST	Small Craft Advisory	MTR		60 hr
Jan 28, 8:00 PM PST	Dense Fog Advisory	HNX		16 hr
Jan 29, 2:29 AM PST	Small Craft Advisory	EKA		55 hr
Jan 29, 7:05 AM PST	Dense Fog Advisory	STO		4 hr
Jan 29, 8:06 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 1 more	3 hr
Jan 29, 9:01 AM PST	Small Craft Advisory	LOX		42 hr
Jan 29, 3:33 PM PST	Dense Fog Advisory	HNX		20 hr
Jan 30, 7:39 AM PST	Marine Dense Fog Advisory	MTR		4 hr
Jan 30, 7:46 AM PST	Dense Fog Advisory	MTR	Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 1 more	3 hr
Jan 31, 2:19 AM PST	Dense Fog Advisory	HNX		9 hr
Jan 31, 2:18 PM PST	Dense Fog Advisory	HNX		20 hr

By product

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

Product	Alerts
Flooding
Areal Flood Advisory	3
Winter
Winter Weather Advisory	1
Cold
Freeze Warning	5
Hard Freeze Warning	1
Freeze Watch	1
Frost Advisory	7
Wind and dust
High Wind Warning	3
High Wind Watch	3
Lake Wind Advisory	2
Wind Advisory	8
Fog and smoke
Dense Fog Advisory	42
Coast and beach
High Surf Advisory	4
Beach Hazards Statement	6
Coastal Flood Statement	1
Marine
Gale Warning	1
Marine Dense Fog Advisory	6
Small Craft Advisory	13
Small Craft Advisory for Hazardous Seas	1
Small Craft Advisory for Rough Bar	1

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 2014 2016

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.