Alert archive / California / 2024
Weather alerts in California, December 2024
457 weather alerts in December 2024, 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 2024. Tap one for its archive.
- Alerts
- 457
- Warnings
- 101
- Watches
- 43
- Advisories
- 283
- Busiest day
- December 14, 202445 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, 8:47 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 14 hr |
| Nov 30, 8:50 PM PST | Dense Fog Advisory | STO | 14 hr | |
| Nov 30, 9:39 PM PST | Beach Hazards Statement | SGX | Orange, San Diego | 62 hr |
| Dec 1, 4:10 AM PST | Freezing Fog Advisory | MFR | Modoc, Siskiyou | 5 hr |
| Dec 2, 12:15 AM PST | Freezing Fog Advisory | REV | Lassen, Plumas, Sierra | 11 hr |
| Dec 2, 1:32 AM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 11 hr |
| Dec 2, 8:45 PM PST | Freezing Fog Advisory | REV | Lassen, Plumas, Sierra | 14 hr |
| Dec 3, 12:30 AM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 13 hr |
| Dec 3, 2:01 PM PST | Freezing Fog Advisory | REV | Lassen, Plumas, Sierra | 21 hr |
| Dec 3, 9:09 PM PST | Dense Fog Advisory | LOX | San Luis Obispo, Santa Barbara | 12 hr |
| Dec 3, 9:39 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 14 hr |
| Dec 4, 4:24 AM PST | Dense Fog Advisory | STO | 6 hr | |
| Dec 4, 12:43 PM PST | Small Craft Advisory | LOX | 53 hr | |
| Dec 4, 12:56 PM PST | Freezing Fog Advisory | REV | Lassen, Plumas, Sierra | 22 hr |
| Dec 4, 8:27 PM PST | Dense Fog Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 14 hr |
| Dec 4, 10:31 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 14 hr |
| Dec 5, 4:22 AM PST | Dense Fog Advisory | LOX | Los Angeles, Santa Barbara, Ventura | 73 min |
| Dec 5, 10:49 AM PST | Tsunami Warning | AAQ | Alameda, Contra Costa, Del Norte, Humboldt, Marin, Mendocino and 6 more | 65 min |
| Dec 5, 7:27 PM PST | Freezing Fog Advisory | REV | Lassen, Plumas, Sierra | 13 hr |
| Dec 5, 7:58 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 17 hr |
| Dec 5, 8:58 PM PST | Dense Fog Advisory | SGX | Orange, San Diego | 14 hr |
| Dec 6, 12:56 AM PST | Dense Fog Advisory | LOX | Los Angeles, Santa Barbara, Ventura | 8 hr |
| Dec 6, 2:24 AM PST | Small Craft Advisory | LOX | 6 hr | |
| Dec 6, 2:50 AM PST | Small Craft Advisory | MTR | 4 days | |
| Dec 6, 9:06 AM PST | Freezing Fog Advisory | REV | Lassen, Plumas, Sierra | 25 hr |
| Dec 6, 1:24 PM PST | Fire Weather Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 24 hr |
| Dec 6, 1:26 PM PST | Fire Weather Watch | LOX | Los Angeles, Ventura | 25 hr |
| Dec 6, 2:10 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Merced, Tulare | 23 hr |
| Dec 6, 2:34 PM PST | Small Craft Advisory | MTR | 3 days | |
| Dec 6, 3:13 PM PST | Gale Warning | EKA | 54 hr | |
| Dec 6, 3:13 PM PST | Small Craft Advisory | EKA | 72 hr | |
| Dec 6, 7:19 PM PST | Small Craft Advisory | LOX | 49 hr | |
| Dec 6, 7:30 PM PST | Wind Advisory | LOX | Los Angeles, Ventura | 15 hr |
| Dec 7, 5:25 AM PST | Dense Fog Advisory | STO | 7 hr | |
| Dec 7, 12:54 PM PST | Red Flag Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 4 days |
| Dec 7, 1:54 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 25 hr |
| Dec 7, 2:36 PM PST | Fire Weather Watch | LOX | San Luis Obispo | 24 hr |
| Dec 7, 2:36 PM PST | Red Flag Warning | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 4 days |
| Dec 7, 11:56 PM PST | Dense Fog Advisory | MFR | Modoc, Siskiyou | 9 hr |
| Dec 8, 12:48 AM PST | Wind Advisory | VEF | San Bernardino | 48 hr |
| Dec 8, 1:43 AM PST | Dense Fog Advisory | LOX | San Luis Obispo, Santa Barbara | 4 hr |
| Dec 8, 1:43 AM PST | High Wind Watch | LOX | Los Angeles, Ventura | 19 hr |
| Dec 8, 2:36 AM PST | Gale Watch | LOX | 11 hr | |
| Dec 8, 2:36 AM PST | Small Craft Advisory | LOX | 11 hr | |
| Dec 8, 2:45 AM PST | Dense Fog Advisory | STO | 9 hr | |
| Dec 8, 12:39 PM PST | Frost Advisory | MTR | Monterey | 20 hr |
| Dec 8, 1:27 PM PST | Gale Watch | LOX | 13 hr | |
| Dec 8, 1:27 PM PST | Storm Watch | LOX | 13 hr | |
| Dec 8, 6:33 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 4 hr |
| Dec 8, 8:44 PM PST | Hazardous Seas Warning | EKA | 6 hr | |
| Dec 8, 9:12 PM PST | Dense Fog Advisory | LOX | Los Angeles, Santa Barbara, Ventura | 5 hr |
| Dec 8, 9:12 PM PST | High Wind Warning | LOX | Los Angeles, Santa Barbara, Ventura | 40 hr |
| Dec 8, 10:29 PM PST | Dense Fog Advisory | STO | 12 hr | |
| Dec 8, 10:40 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 13 hr |
| Dec 8, 10:46 PM PST | Freeze Watch | PSR | Imperial, Riverside | 24 hr |
| Dec 8, 11:53 PM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 33 hr |
| Dec 9, 2:16 AM PST | Wind Advisory | HNX | Kern | 32 hr |
| Dec 9, 2:21 AM PST | Wind Advisory | LOX | Los Angeles, San Luis Obispo, Ventura | 34 hr |
| Dec 9, 2:35 AM PST | Gale Warning | LOX | 35 hr | |
| Dec 9, 2:35 AM PST | Small Craft Advisory | LOX | 33 hr | |
| Dec 9, 12:26 PM PST | Freeze Warning | MTR | Monterey | 21 hr |
| Dec 9, 2:00 PM PST | Special Marine Warning | LOX | 10 hr | |
| Dec 9, 2:13 PM PST | Beach Hazards Statement | EKA | Del Norte, Humboldt, Mendocino | 46 hr |
| Dec 9, 3:01 PM PST | Small Craft Advisory | EKA | 70 hr | |
| Dec 9, 3:17 PM PST | Cold Weather Advisory | EKA | Del Norte, Humboldt, Mendocino | 18 hr |
| Dec 9, 6:07 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 12 hr |
| Dec 9, 10:47 PM PST | Freeze Warning | PSR | Imperial, Riverside | 33 hr |
| Dec 9, 11:41 PM PST | Freeze Watch | HNX | Kern, Kings, Tulare | 13 hr |
| Dec 10, 12:04 AM PST | Special Marine Warning | LOX | 10 hr | |
| Dec 10, 9:54 AM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 23 hr |
| Dec 10, 12:05 PM PST | Winter Weather Advisory | HNX | Fresno, Madera, Mariposa, Tulare, Tuolumne | 58 hr |
| Dec 10, 12:24 PM PST | Freeze Warning | HNX | Kern, Kings, Tulare | 20 hr |
| Dec 10, 12:56 PM PST | Wind Advisory | LOX | Los Angeles, Ventura | 23 hr |
| Dec 10, 1:24 PM PST | Winter Weather Advisory | STO | 57 hr | |
| Dec 10, 2:01 PM PST | Small Craft Advisory | LOX | 7 hr | |
| Dec 10, 2:08 PM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 56 hr |
| Dec 10, 2:34 PM PST | Small Craft Advisory | MTR | 3 days | |
| Dec 10, 2:45 PM PST | Gale Watch | EKA | 12 hr | |
| Dec 10, 2:48 PM PST | Winter Weather Advisory | EKA | 41 hr | |
| Dec 10, 8:02 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 17 hr |
| Dec 10, 8:49 PM PST | Freeze Warning | LOX | Ventura | 12 hr |
| Dec 11, 1:29 AM PST | Small Craft Advisory | LOX | 8 days | |
| Dec 11, 2:26 AM PST | Gale Warning | EKA | 37 hr | |
| Dec 11, 2:49 AM PST | Wind Advisory | MFR | Siskiyou | 25 hr |
| Dec 11, 3:08 AM PST | Frost Advisory | LOX | Los Angeles | 6 hr |
| Dec 11, 9:27 AM PST | Coastal Flood Advisory | MTR | Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more | 5 days |
| Dec 11, 12:55 PM PST | High Wind Watch | MFR | Siskiyou | 22 hr |
| Dec 11, 1:07 PM PST | Small Craft Advisory | SGX | 33 hr | |
| Dec 11, 1:15 PM PST | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 35 hr |
| Dec 11, 1:18 PM PST | Beach Hazards Statement | SGX | Orange, San Diego | 4 days |
| Dec 11, 1:21 PM PST | Winter Storm Watch | MFR | Siskiyou | 23 hr |
| Dec 11, 1:54 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 38 hr |
| Dec 11, 2:17 PM PST | Winter Storm Watch | EKA | 22 hr | |
| Dec 11, 2:28 PM PST | Beach Hazards Statement | LOX | Los Angeles, Santa Barbara | 4 days |
| Dec 11, 2:28 PM PST | Gale Warning | LOX | 24 hr | |
| Dec 11, 2:28 PM PST | High Surf Advisory | LOX | San Luis Obispo, Santa Barbara, Ventura | 4 days |
| Dec 11, 2:57 PM PST | Gale Watch | EKA | 23 hr | |
| Dec 11, 9:16 PM PST | Frost Advisory | LOX | Los Angeles, Ventura | 12 hr |
| Dec 11, 9:16 PM PST | Freeze Warning | LOX | Los Angeles | 12 hr |
| Dec 11, 9:16 PM PST | Wind Advisory | LOX | San Luis Obispo, Santa Barbara, Ventura | 21 hr |
| Dec 11, 10:14 PM PST | Coastal Flood Advisory | EKA | Humboldt | 15 hr |
| Dec 11, 11:51 PM PST | Wind Advisory | PSR | Imperial | 33 hr |
| Dec 12, 1:06 AM PST | Winter Weather Advisory | MFR | Siskiyou | 9 hr |
| Dec 12, 1:07 AM PST | High Wind Watch | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Clara, Santa Cruz and 1 more | 24 hr |
| Dec 12, 1:29 AM PST | Small Craft Advisory | LOX | 11 hr | |
| Dec 12, 1:39 AM PST | Winter Weather Advisory | EKA | Trinity | 42 hr |
| Dec 12, 2:27 AM PST | Gale Warning | MTR | 55 hr | |
| Dec 12, 3:29 AM PST | Flood Watch | EKA | Humboldt, Lake, Mendocino | 58 hr |
| Dec 12, 3:59 AM PST | Flood Watch | MTR | Marin, Monterey, Napa, Sonoma | 3 days |
| Dec 12, 6:08 AM PST | Coastal Flood Advisory | EKA | Humboldt | 5 hr |
| Dec 12, 10:00 AM PST | River Flood Watch | EKA | Mendocino | 60 hr |
| Dec 12, 10:03 AM PST | River Flood Watch | EKA | Mendocino | 60 hr |
| Dec 12, 10:47 AM PST | Wind Advisory | EKA | Del Norte, Humboldt, Mendocino | 35 hr |
| Dec 12, 11:17 AM PST | High Wind Warning | MFR | Siskiyou | 44 hr |
| Dec 12, 11:17 AM PST | Wind Advisory | MFR | Modoc | 44 hr |
| Dec 12, 11:19 AM PST | Winter Storm Watch | HNX | Fresno, Madera, Mariposa, Tulare, Tuolumne | 15 hr |
| Dec 12, 11:52 AM PST | Winter Storm Warning | EKA | 49 hr | |
| Dec 12, 12:50 PM PST | Winter Storm Warning | MFR | Siskiyou | 44 hr |
| Dec 12, 12:50 PM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 54 hr |
| Dec 12, 12:53 PM PST | Coastal Flood Warning | EKA | Humboldt | 22 hr |
| Dec 12, 12:53 PM PST | Coastal Flood Advisory | EKA | Del Norte, Mendocino | 22 hr |
| Dec 12, 1:27 PM PST | Gale Warning | EKA | 34 hr | |
| Dec 12, 1:27 PM PST | Hazardous Seas Warning | EKA | 20 hr | |
| Dec 12, 1:40 PM PST | Winter Storm Warning | STO | 56 hr | |
| Dec 12, 1:43 PM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 7 hr |
| Dec 12, 2:05 PM PST | Wind Advisory | STO | 48 hr | |
| Dec 12, 2:32 PM PST | Small Craft Advisory | MTR | 13 hr | |
| Dec 12, 2:36 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 55 hr |
| Dec 12, 7:25 PM PST | Small Craft Advisory | MTR | 26 hr | |
| Dec 13, 12:57 AM PST | Winter Weather Advisory | VEF | Inyo | 45 hr |
| Dec 13, 12:59 AM PST | High Wind Warning | MTR | Alameda, Contra Costa, Marin, Monterey, City and County of San Francisco, San Mateo and 3 more | 33 hr |
| Dec 13, 12:59 AM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 33 hr |
| Dec 13, 1:07 AM PST | Wind Advisory | VEF | 44 hr | |
| Dec 13, 1:57 AM PST | Winter Storm Warning | HNX | Fresno, Madera, Mariposa, Tulare, Tuolumne | 44 hr |
| Dec 13, 2:28 AM PST | Wind Advisory | REV | Modoc | 38 hr |
| Dec 13, 3:28 AM PST | Small Craft Advisory | MTR | 6 hr | |
| Dec 13, 3:28 AM PST | Storm Warning | MTR | 30 hr | |
| Dec 13, 3:39 AM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 39 hr |
| Dec 13, 8:47 AM PST | Gale Warning | LOX | 25 hr | |
| Dec 13, 8:56 AM PST | River Flood Warning | EKA | Mendocino | 37 hr |
| Dec 13, 8:59 AM PST | River Flood Warning | EKA | Mendocino | 40 hr |
| Dec 13, 9:00 AM PST | Wind Advisory | LOX | San Luis Obispo, Santa Barbara | 31 hr |
| Dec 13, 9:02 AM PST | Wind Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 29 hr |
| Dec 13, 1:28 PM PST | Coastal Flood Warning | EKA | Humboldt, Mendocino | 23 hr |
| Dec 13, 1:28 PM PST | Coastal Flood Advisory | EKA | Del Norte | 23 hr |
| Dec 13, 2:54 PM PST | Small Craft Advisory | EKA | 54 hr | |
| Dec 13, 6:45 PM PST | Areal Flood Advisory | EKA | Humboldt | 6 hr |
| Dec 13, 7:20 PM PST | Areal Flood Advisory | EKA | Del Norte, Humboldt | 6 hr |
| Dec 13, 7:46 PM PST | High Wind Warning | LOX | San Luis Obispo, Santa Barbara | 20 hr |
| Dec 13, 8:27 PM PST | Areal Flood Advisory | EKA | Humboldt | 5 hr |
| Dec 13, 8:58 PM PST | Small Craft Advisory | LOX | 5 days | |
| Dec 13, 9:20 PM PST | Areal Flood Advisory | EKA | Mendocino | 3 hr |
| Dec 13, 11:24 PM PST | Areal Flood Advisory | MTR | Marin, Sonoma | 3 hr |
| Dec 14, 12:56 AM PST | Areal Flood Advisory | MTR | Sonoma | 7 hr |
| Dec 14, 1:38 AM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 3 hr |
| Dec 14, 2:33 AM PST | Gale Watch | EKA | 13 hr | |
| Dec 14, 3:20 AM PST | Special Marine Warning | MTR | 40 min | |
| Dec 14, 4:01 AM PST | Special Marine Warning | MTR | 29 min | |
| Dec 14, 4:45 AM PST | Areal Flood Advisory | MTR | Marin, Sonoma | 3 hr |
| Dec 14, 4:51 AM PST | Areal Flood Advisory | MTR | City and County of San Francisco | 3 hr |
| Dec 14, 5:04 AM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 3 hr |
| Dec 14, 5:18 AM PST | Areal Flood Advisory | MTR | Santa Clara, Santa Cruz | 3 hr |
| Dec 14, 5:36 AM PST | Special Marine Warning | MTR | 24 min | |
| Dec 14, 5:45 AM PST | Special Marine Warning | MTR | 30 min | |
| Dec 14, 5:51 AM PST | Tornado Warning | MTR | City and County of San Francisco, San Mateo | 24 min |
| Dec 14, 6:06 AM PST | Special Marine Warning | MTR | 24 min | |
| Dec 14, 6:18 AM PST | Areal Flood Advisory | STO | Butte, Colusa, El Dorado, Glenn, Nevada, Placer and 7 more | 6 hr |
| Dec 14, 7:05 AM PST | Areal Flood Advisory | MTR | San Mateo | 55 min |
| Dec 14, 7:13 AM PST | Special Weather Statement | MTR | Monterey | 32 min |
| Dec 14, 7:17 AM PST | High Wind Warning | HNX | Fresno, Kern, Kings, Merced | 7 hr |
| Dec 14, 7:56 AM PST | Areal Flood Advisory | MTR | Sonoma | 44 hr |
| Dec 14, 8:23 AM PST | Areal Flood Advisory | MTR | Sonoma | 17 hr |
| Dec 14, 8:29 AM PST | Areal Flood Advisory | EKA | Humboldt, Lake, Mendocino | 3 hr |
| Dec 14, 8:32 AM PST | Areal Flood Advisory | MTR | Sonoma | 11 hr |
| Dec 14, 8:37 AM PST | Small Craft Advisory | MTR | 48 hr | |
| Dec 14, 9:28 AM PST | Special Weather Statement | EKA | Lake, Mendocino | 4 hr |
| Dec 14, 11:02 AM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 22 hr |
| Dec 14, 11:48 AM PST | Coastal Flood Advisory | EKA | Humboldt | 25 hr |
| Dec 14, 11:57 AM PST | Special Weather Statement | HNX | Mariposa | 33 min |
| Dec 14, 12:13 PM PST | Flash Flood Warning | HNX | Mariposa | 77 min |
| Dec 14, 12:26 PM PST | Special Weather Statement | HNX | Mariposa | 34 min |
| Dec 14, 12:28 PM PST | Flash Flood Warning | HNX | Mariposa | 111 min |
| Dec 14, 12:40 PM PST | Special Weather Statement | HNX | Madera | 35 min |
| Dec 14, 12:42 PM PST | Special Marine Warning | MTR | 33 min | |
| Dec 14, 1:07 PM PST | Special Weather Statement | MTR | Santa Cruz | 23 min |
| Dec 14, 1:08 PM PST | Special Weather Statement | HNX | Madera | 37 min |
| Dec 14, 1:15 PM PST | Cold Weather Advisory | EKA | Mendocino | 18 hr |
| Dec 14, 1:25 PM PST | Severe Thunderstorm Warning | MTR | Santa Cruz | 23 min |
| Dec 14, 3:03 PM PST | Areal Flood Advisory | STO | Shasta | 3 hr |
| Dec 14, 3:12 PM PST | Small Craft Advisory | LOX | 30 hr | |
| Dec 14, 3:19 PM PST | Gale Warning | EKA | 42 hr | |
| Dec 14, 4:08 PM PST | River Flood Warning | STO | Tehama | 15 hr |
| Dec 15, 12:52 AM PST | Wind Advisory | MFR | Modoc, Siskiyou | 45 hr |
| Dec 15, 1:29 AM PST | Winter Weather Advisory | MFR | Siskiyou | 54 hr |
| Dec 15, 1:41 AM PST | Winter Weather Advisory | STO | 45 hr | |
| Dec 15, 2:39 AM PST | Small Craft Advisory | MTR | 30 hr | |
| Dec 15, 3:16 AM PST | Winter Weather Advisory | EKA | Trinity | 43 hr |
| Dec 15, 3:29 AM PST | Wind Advisory | EKA | Del Norte, Humboldt | 31 hr |
| Dec 15, 6:19 AM PST | Dense Fog Advisory | STO | 5 hr | |
| Dec 15, 6:21 AM PST | Dense Fog Advisory | HNX | Fresno, Kings, Tulare | 6 hr |
| Dec 15, 8:40 AM PST | Small Craft Advisory | MTR | 66 hr | |
| Dec 15, 12:42 PM PST | Coastal Flood Advisory | EKA | Humboldt | 24 hr |
| Dec 15, 1:53 PM PST | Fire Weather Watch | LOX | Los Angeles, Ventura | 24 hr |
| Dec 15, 2:18 PM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 28 hr |
| Dec 15, 8:39 PM PST | Small Craft Advisory | LOX | 30 hr | |
| Dec 15, 11:49 PM PST | Frost Advisory | LOX | Los Angeles, Ventura | 8 hr |
| Dec 16, 12:45 AM PST | Gale Watch | LOX | 14 hr | |
| Dec 16, 2:52 AM PST | Wind Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 60 hr |
| Dec 16, 8:53 AM PST | Small Craft Advisory | LOX | 54 hr | |
| Dec 16, 8:55 AM PST | Small Craft Advisory | EKA | 60 hr | |
| Dec 16, 1:54 PM PST | Red Flag Warning | LOX | Los Angeles, Ventura | 49 hr |
| Dec 16, 1:56 PM PST | High Surf Advisory | LOX | San Luis Obispo, Santa Barbara | 44 hr |
| Dec 16, 2:12 PM PST | High Wind Warning | LOX | Los Angeles, Ventura | 42 hr |
| Dec 16, 2:12 PM PST | Wind Advisory | LOX | Los Angeles, San Luis Obispo, Ventura | 49 hr |
| Dec 16, 2:31 PM PST | Small Craft Advisory | EKA | 54 hr | |
| Dec 16, 2:39 PM PST | Areal Flood Advisory | MTR | Sonoma | 32 hr |
| Dec 16, 4:48 PM PST | Areal Flood Advisory | HNX | Mariposa | 117 min |
| Dec 16, 5:07 PM PST | Areal Flood Advisory | HNX | Mariposa, Tuolumne | 113 min |
| Dec 16, 10:46 PM PST | Dense Fog Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 12 hr |
| Dec 17, 1:01 AM PST | Dense Fog Advisory | STO | 10 hr | |
| Dec 17, 2:08 AM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 9 hr |
| Dec 17, 2:16 AM PST | Wind Advisory | VEF | San Bernardino | 38 hr |
| Dec 17, 2:49 AM PST | Small Craft Advisory | LOX | 36 hr | |
| Dec 17, 12:34 PM PST | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 53 hr |
| Dec 17, 10:01 PM PST | Dense Fog Advisory | MTR | Alameda, Contra Costa, Marin, Napa, San Mateo, Santa Clara and 1 more | 15 hr |
| Dec 18, 12:32 AM PST | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 11 hr |
| Dec 18, 7:39 AM PST | Marine Dense Fog Advisory | MTR | 5 hr | |
| Dec 18, 2:24 PM PST | Beach Hazards Statement | EKA | Del Norte, Humboldt, Mendocino | 49 hr |
| Dec 18, 9:25 PM PST | Dense Fog Advisory | MTR | Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more | 12 hr |
| Dec 18, 9:36 PM PST | Dense Fog Advisory | STO | 13 hr | |
| Dec 19, 2:19 AM PST | Small Craft Advisory | MTR | 13 days | |
| Dec 19, 2:39 AM PST | Gale Warning | EKA | 54 hr | |
| Dec 19, 2:39 AM PST | Small Craft Advisory | EKA | 3 hr | |
| Dec 19, 4:28 AM PST | Dense Fog Advisory | SGX | Orange, San Diego | 5 hr |
| Dec 19, 5:16 AM PST | Small Craft Advisory | EKA | 10 hr | |
| Dec 19, 11:09 AM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 3 days |
| Dec 19, 12:44 PM PST | Wind Advisory | MFR | Modoc, Siskiyou | 48 hr |
| Dec 19, 1:38 PM PST | Wind Advisory | EKA | Del Norte, Humboldt | 43 hr |
| Dec 19, 4:45 PM PST | Dense Fog Advisory | SGX | Orange, San Diego | 17 hr |
| Dec 19, 4:49 PM PST | Gale Watch | EKA | 16 hr | |
| Dec 19, 4:49 PM PST | Small Craft Advisory | EKA | 30 hr | |
| Dec 19, 6:45 PM PST | Dense Fog Advisory | LOX | Los Angeles, Santa Barbara, Ventura | 14 hr |
| Dec 19, 7:52 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 17 hr |
| Dec 19, 8:14 PM PST | Dense Fog Advisory | STO | 14 hr | |
| Dec 20, 2:22 AM PST | High Surf Advisory | SGX | Orange, San Diego | 7 days |
| Dec 20, 3:00 AM PST | Small Craft Advisory | LOX | 12 days | |
| Dec 20, 5:46 AM PST | High Surf Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 6 days |
| Dec 20, 12:17 PM PST | Wind Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 28 hr |
| Dec 20, 12:58 PM PST | High Wind Warning | MFR | Siskiyou | 21 hr |
| Dec 20, 2:04 PM PST | High Surf Warning | LOX | San Luis Obispo, Santa Barbara, Ventura | 4 days |
| Dec 20, 5:12 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 18 hr |
| Dec 20, 6:26 PM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 39 hr |
| Dec 20, 9:22 PM PST | Dense Fog Advisory | SGX | Orange, San Diego | 13 hr |
| Dec 20, 9:43 PM PST | Gale Warning | MTR | 11 hr | |
| Dec 21, 2:24 AM PST | Small Craft Advisory | SGX | 4 days | |
| Dec 21, 3:28 AM PST | Coastal Flood Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 3 days |
| Dec 21, 3:57 AM PST | Dense Fog Advisory | LOX | Ventura | 88 min |
| Dec 21, 6:13 AM PST | Dense Fog Advisory | LOX | Los Angeles | 4 hr |
| Dec 21, 8:53 AM PST | Gale Warning | EKA | 36 hr | |
| Dec 21, 8:53 AM PST | Small Craft Advisory | EKA | 18 hr | |
| Dec 21, 8:53 AM PST | Hazardous Seas Warning | EKA | 30 hr | |
| Dec 21, 10:15 AM PST | Wind Advisory | EKA | Del Norte, Humboldt | 30 hr |
| Dec 21, 12:22 PM PST | Wind Advisory | MFR | Siskiyou | 31 hr |
| Dec 22, 1:07 AM PST | High Wind Watch | MFR | Siskiyou | 11 hr |
| Dec 22, 1:14 AM PST | High Surf Warning | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 65 hr |
| Dec 22, 10:18 AM PST | Special Marine Warning | EKA | 27 min | |
| Dec 22, 10:37 AM PST | Special Marine Warning | EKA | 23 min | |
| Dec 22, 11:30 AM PST | Winter Weather Advisory | HNX | Fresno, Madera, Mariposa, Tulare, Tuolumne | 15 hr |
| Dec 22, 11:58 AM PST | Winter Weather Advisory | STO | 55 hr | |
| Dec 22, 11:59 AM PST | Special Marine Warning | EKA | 31 min | |
| Dec 22, 12:05 PM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 55 hr |
| Dec 22, 12:35 PM PST | High Wind Warning | MFR | Siskiyou | 36 hr |
| Dec 22, 12:35 PM PST | Wind Advisory | MFR | Modoc | 39 hr |
| Dec 22, 12:59 PM PST | Coastal Flood Warning | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 47 hr |
| Dec 22, 1:26 PM PST | Special Marine Warning | EKA | 34 min | |
| Dec 22, 2:05 PM PST | Special Marine Warning | EKA | 25 min | |
| Dec 22, 2:12 PM PST | Special Marine Warning | EKA | 33 min | |
| Dec 22, 2:19 PM PST | Wind Advisory | EKA | Del Norte, Humboldt | 32 hr |
| Dec 22, 2:38 PM PST | Special Marine Warning | EKA | 37 min | |
| Dec 22, 2:57 PM PST | Small Craft Advisory | EKA | 15 hr | |
| Dec 22, 2:57 PM PST | Hazardous Seas Warning | EKA | 24 hr | |
| Dec 22, 3:05 PM PST | Special Marine Warning | MTR | 25 min | |
| Dec 22, 3:29 PM PST | Special Marine Warning | MTR | 31 min | |
| Dec 22, 3:35 PM PST | High Surf Warning | EKA | Del Norte, Humboldt, Mendocino | 29 hr |
| Dec 22, 3:58 PM PST | Special Marine Warning | MTR | 23 min | |
| Dec 22, 5:14 PM PST | Special Marine Warning | MTR | 21 min | |
| Dec 22, 6:16 PM PST | Special Weather Statement | MTR | Marin | 29 min |
| Dec 22, 9:01 PM PST | Gale Warning | EKA | 30 hr | |
| Dec 23, 12:28 AM PST | Wind Advisory | VEF | Inyo, San Bernardino | 50 hr |
| Dec 23, 2:04 AM PST | Winter Storm Warning | HNX | Fresno, Madera, Mariposa, Tulare, Tuolumne | 38 hr |
| Dec 23, 2:28 AM PST | Dense Fog Advisory | SGX | San Diego | 7 hr |
| Dec 23, 2:28 AM PST | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 45 hr |
| Dec 23, 2:36 AM PST | High Wind Warning | HNX | Kern | 48 hr |
| Dec 23, 2:36 AM PST | Wind Advisory | HNX | Kern | 48 hr |
| Dec 23, 2:59 AM PST | Small Craft Advisory | LOX | 54 hr | |
| Dec 23, 8:49 AM PST | Small Craft Advisory | MTR | 30 hr | |
| Dec 23, 10:35 AM PST | Flood Watch | EKA | Del Norte, Humboldt, Mendocino | 23 hr |
| Dec 23, 11:33 AM PST | Flood Watch | HNX | Fresno, Kern, Madera, Mariposa, Merced, Tulare | 27 hr |
| Dec 23, 1:10 PM PST | Winter Storm Watch | MFR | Siskiyou | 23 hr |
| Dec 23, 8:23 PM PST | Small Craft Advisory | EKA | 46 hr | |
| Dec 23, 8:38 PM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 15 hr |
| Dec 23, 8:47 PM PST | Dense Fog Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 11 hr |
| Dec 23, 8:59 PM PST | Areal Flood Advisory | EKA | Humboldt | 8 hr |
| Dec 23, 9:04 PM PST | Areal Flood Advisory | EKA | Humboldt | 8 hr |
| Dec 23, 9:11 PM PST | Wind Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 5 days |
| Dec 23, 9:47 PM PST | Areal Flood Advisory | EKA | Del Norte | 7 hr |
| Dec 23, 10:05 PM PST | Areal Flood Advisory | EKA | Del Norte | 7 hr |
| Dec 23, 10:06 PM PST | Areal Flood Advisory | EKA | Humboldt | 7 hr |
| Dec 23, 10:48 PM PST | Areal Flood Advisory | MFR | Siskiyou | 117 min |
| Dec 23, 11:37 PM PST | Areal Flood Advisory | EKA | Humboldt | 5 hr |
| Dec 24, 2:11 AM PST | High Wind Watch | MFR | Modoc, Siskiyou | 10 hr |
| Dec 24, 2:27 AM PST | Areal Flood Advisory | MTR | City and County of San Francisco, San Mateo | 2 hr |
| Dec 24, 2:32 AM PST | Areal Flood Advisory | MTR | Alameda | 118 min |
| Dec 24, 2:51 AM PST | Flash Flood Warning | STO | Tehama | 3 hr |
| Dec 24, 4:57 AM PST | Areal Flood Advisory | EKA | Mendocino | 3 hr |
| Dec 24, 5:30 AM PST | Areal Flood Advisory | MTR | Sonoma | 30 hr |
| Dec 24, 6:38 AM PST | Areal Flood Advisory | EKA | Humboldt, Trinity | 82 min |
| Dec 24, 8:26 AM PST | Areal Flood Advisory | STO | Shasta, Tehama | 6 hr |
| Dec 24, 9:31 AM PST | Special Weather Statement | EKA | Del Norte | 29 min |
| Dec 24, 9:56 AM PST | Special Weather Statement | EKA | Humboldt | 34 min |
| Dec 24, 10:12 AM PST | Special Weather Statement | EKA | Humboldt | 33 min |
| Dec 24, 10:21 AM PST | Areal Flood Advisory | MTR | Napa, Sonoma | 5 hr |
| Dec 24, 10:21 AM PST | Areal Flood Advisory | STO | Butte, Glenn, Tehama | 4 hr |
| Dec 24, 10:49 AM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 3 hr |
| Dec 24, 12:07 PM PST | High Wind Warning | MFR | Modoc, Siskiyou | 46 hr |
| Dec 24, 12:07 PM PST | Wind Advisory | MFR | Siskiyou | 40 hr |
| Dec 24, 12:13 PM PST | High Surf Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 7 days |
| Dec 24, 12:25 PM PST | Winter Weather Advisory | MFR | Siskiyou | 70 hr |
| Dec 24, 12:26 PM PST | Dust Storm Advisory | HNX | Kern | 64 min |
| Dec 24, 1:34 PM PST | Frost Advisory | MTR | Marin, Monterey, Napa, San Benito, Sonoma | 17 hr |
| Dec 24, 1:46 PM PST | High Wind Watch | EKA | Del Norte, Humboldt | 11 hr |
| Dec 24, 2:00 PM PST | Winter Weather Advisory | EKA | 42 hr | |
| Dec 24, 2:31 PM PST | Gale Watch | EKA | 12 hr | |
| Dec 24, 2:31 PM PST | Gale Warning | EKA | 36 hr | |
| Dec 24, 2:31 PM PST | Storm Watch | EKA | 12 hr | |
| Dec 24, 4:05 PM PST | Special Weather Statement | STO | Yuba | 25 min |
| Dec 24, 4:45 PM PST | Special Weather Statement | STO | Amador | 30 min |
| Dec 24, 5:35 PM PST | Special Weather Statement | STO | Nevada | 25 min |
| Dec 24, 5:54 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 8 hr |
| Dec 24, 8:50 PM PST | Small Craft Advisory | MTR | 4 days | |
| Dec 24, 10:48 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 12 hr |
| Dec 25, 1:10 AM PST | High Wind Warning | EKA | Del Norte | 27 hr |
| Dec 25, 1:10 AM PST | Wind Advisory | EKA | Del Norte, Humboldt | 27 hr |
| Dec 25, 1:22 AM PST | Winter Weather Advisory | STO | 56 hr | |
| Dec 25, 2:08 AM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 55 hr |
| Dec 25, 2:11 AM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 4 days |
| Dec 25, 2:58 AM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 39 hr |
| Dec 25, 8:32 AM PST | Small Craft Advisory | MTR | 5 days | |
| Dec 25, 10:26 AM PST | Gale Warning | LOX | 30 hr | |
| Dec 25, 12:11 PM PST | Wind Advisory | REV | Modoc | 24 hr |
| Dec 25, 2:03 PM PST | Storm Warning | EKA | 13 hr | |
| Dec 25, 9:07 PM PST | Hazardous Seas Watch | EKA | 6 hr | |
| Dec 25, 10:25 PM PST | Small Craft Advisory | MTR | 71 hr | |
| Dec 26, 1:10 AM PST | Special Weather Statement | EKA | Del Norte | 35 min |
| Dec 26, 1:34 AM PST | Winter Weather Advisory | HNX | Fresno, Madera, Mariposa, Tuolumne | 32 hr |
| Dec 26, 2:37 AM PST | Gale Warning | MTR | 24 hr | |
| Dec 26, 2:47 AM PST | Hazardous Seas Warning | EKA | 17 hr | |
| Dec 26, 3:38 AM PST | Wind Advisory | EKA | Del Norte, Humboldt | 24 hr |
| Dec 26, 4:10 AM PST | Special Weather Statement | EKA | Del Norte | 35 min |
| Dec 26, 8:41 AM PST | Beach Hazards Statement | LOX | Los Angeles, Santa Barbara | 4 days |
| Dec 26, 9:26 AM PST | Gale Warning | EKA | 17 hr | |
| Dec 26, 10:46 AM PST | Wind Advisory | MFR | Modoc, Siskiyou | 16 hr |
| Dec 26, 11:50 AM PST | River Flood Warning | EKA | Mendocino | 28 hr |
| Dec 26, 12:09 PM PST | Wind Advisory | SGX | San Bernardino | 31 hr |
| Dec 26, 12:09 PM PST | Wind Advisory | STO | 22 hr | |
| Dec 26, 12:28 PM PST | Beach Hazards Statement | SGX | San Diego | 3 days |
| Dec 26, 12:30 PM PST | Wind Advisory | VEF | San Bernardino | 31 hr |
| Dec 26, 12:50 PM PST | High Wind Warning | REV | Mono | 24 hr |
| Dec 26, 12:50 PM PST | Wind Advisory | REV | Lassen, Modoc, Plumas, Sierra | 24 hr |
| Dec 26, 5:12 PM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 24 hr |
| Dec 26, 5:14 PM PST | High Wind Warning | MFR | Modoc | 17 hr |
| Dec 26, 6:33 PM PST | Wind Advisory | HNX | Kern | 11 hr |
| Dec 26, 6:33 PM PST | Areal Flood Advisory | MTR | Sonoma | 8 hr |
| Dec 26, 6:39 PM PST | Areal Flood Advisory | MTR | Napa, Sonoma | 9 hr |
| Dec 26, 7:01 PM PST | Areal Flood Advisory | MTR | Sonoma | 9 hr |
| Dec 26, 7:06 PM PST | Areal Flood Advisory | MTR | Napa, Sonoma | 9 hr |
| Dec 26, 7:09 PM PST | Areal Flood Advisory | MTR | Marin, Sonoma | 9 hr |
| Dec 26, 7:23 PM PST | Areal Flood Advisory | MTR | Napa | 9 hr |
| Dec 26, 7:53 PM PST | Areal Flood Advisory | MTR | Marin, Sonoma | 11 hr |
| Dec 26, 8:44 PM PST | Areal Flood Advisory | MTR | City and County of San Francisco, San Mateo | 8 hr |
| Dec 26, 10:15 PM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 8 hr |
| Dec 27, 2:29 AM PST | Areal Flood Warning | MTR | Sonoma | 27 hr |
| Dec 27, 2:49 AM PST | Small Craft Advisory | EKA | 45 hr | |
| Dec 27, 2:49 AM PST | Hazardous Seas Warning | EKA | 12 hr | |
| Dec 27, 3:28 AM PST | Dense Fog Advisory | LOX | Los Angeles, Ventura | 3 hr |
| Dec 27, 4:18 AM PST | Areal Flood Advisory | MTR | Marin | 3 hr |
| Dec 27, 4:39 AM PST | Areal Flood Advisory | MTR | Monterey | 3 hr |
| Dec 27, 5:35 AM PST | High Wind Warning | HNX | Kern | 16 hr |
| Dec 27, 6:14 AM PST | High Wind Warning | LOX | Los Angeles | 118 min |
| Dec 27, 6:14 AM PST | Wind Advisory | LOX | Los Angeles | 20 hr |
| Dec 27, 10:51 AM PST | Wind Advisory | MFR | Modoc, Siskiyou | 21 hr |
| Dec 27, 12:36 PM PST | Wind Advisory | STO | 48 hr | |
| Dec 27, 12:57 PM PST | Flood Watch | MFR | Siskiyou | 45 hr |
| Dec 27, 2:00 PM PST | Flood Watch | EKA | Del Norte, Humboldt | 49 hr |
| Dec 27, 2:02 PM PST | Fire Weather Watch | LOX | Los Angeles, Ventura | 72 hr |
| Dec 27, 2:42 PM PST | High Wind Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 11 hr |
| Dec 27, 2:44 PM PST | Gale Watch | EKA | 12 hr | |
| Dec 27, 4:56 PM PST | High Wind Warning | MFR | Modoc | 17 hr |
| Dec 27, 7:37 PM PST | Coastal Flood Advisory | LOX | San Luis Obispo, Santa Barbara | 16 hr |
| Dec 27, 8:27 PM PST | High Wind Watch | MFR | Modoc, Siskiyou | 7 hr |
| Dec 27, 9:49 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Mariposa, Merced and 1 more | 13 hr |
| Dec 27, 11:53 PM PST | Wind Advisory | VEF | Inyo, San Bernardino | 46 hr |
| Dec 28, 12:52 AM PST | Dense Fog Advisory | MTR | Monterey, San Benito | 9 hr |
| Dec 28, 1:25 AM PST | High Wind Warning | REV | Mono | 42 hr |
| Dec 28, 1:25 AM PST | Wind Advisory | REV | Modoc | 42 hr |
| Dec 28, 1:43 AM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 42 hr |
| Dec 28, 2:00 AM PST | Small Craft Advisory | MTR | 3 days | |
| Dec 28, 2:10 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 10 hr |
| Dec 28, 2:21 AM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Dec 28, 2:27 AM PST | Dense Fog Advisory | LOX | San Luis Obispo, Santa Barbara | 7 hr |
| Dec 28, 2:29 AM PST | Winter Weather Advisory | STO | 42 hr | |
| Dec 28, 2:49 AM PST | Gale Warning | EKA | 24 hr | |
| Dec 28, 2:58 AM PST | High Wind Warning | EKA | Del Norte | 24 hr |
| Dec 28, 2:58 AM PST | Wind Advisory | EKA | Del Norte, Humboldt, Mendocino | 30 hr |
| Dec 28, 3:19 AM PST | High Wind Warning | MFR | Modoc, Siskiyou | 31 hr |
| Dec 28, 3:19 AM PST | Wind Advisory | MFR | Modoc, Siskiyou | 31 hr |
| Dec 28, 5:56 AM PST | Areal Flood Advisory | MTR | Sonoma | 13 hr |
| Dec 28, 12:10 PM PST | Wind Advisory | HNX | Kern | 41 hr |
| Dec 28, 12:52 PM PST | Flood Watch | MTR | Marin, Napa, Sonoma | 21 hr |
| Dec 28, 6:18 PM PST | Dense Fog Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 15 hr |
| Dec 28, 9:01 PM PST | Gale Warning | MTR | 18 hr | |
| Dec 28, 9:25 PM PST | Areal Flood Warning | MFR | Siskiyou | 9 hr |
| Dec 28, 10:38 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Tulare | 11 hr |
| Dec 29, 2:02 AM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 31 hr |
| Dec 29, 2:08 AM PST | Small Craft Advisory | MTR | 60 hr | |
| Dec 29, 2:50 AM PST | Small Craft Advisory | EKA | 24 hr | |
| Dec 29, 4:25 AM PST | Areal Flood Advisory | EKA | Humboldt | 10 hr |
| Dec 29, 4:33 AM PST | Wind Advisory | MTR | Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 3 more | 10 hr |
| Dec 29, 4:43 AM PST | Dense Fog Advisory | SGX | Orange, San Diego | 4 hr |
| Dec 29, 7:22 AM PST | Areal Flood Advisory | MTR | Marin | 3 hr |
| Dec 29, 7:35 AM PST | Areal Flood Advisory | MTR | Sonoma | 30 hr |
| Dec 29, 7:57 AM PST | Special Weather Statement | STO | Tehama | 33 min |
| Dec 29, 8:18 AM PST | River Flood Warning | EKA | Del Norte | 3 hr |
| Dec 29, 8:22 AM PST | Areal Flood Advisory | MTR | Alameda | 4 hr |
| Dec 29, 8:45 AM PST | Areal Flood Advisory | MTR | Santa Cruz | 4 hr |
| Dec 29, 8:58 AM PST | Areal Flood Advisory | MTR | Marin, Sonoma | 3 hr |
| Dec 29, 10:36 AM PST | River Flood Watch | EKA | Mendocino | 7 hr |
| Dec 29, 10:40 AM PST | Areal Flood Advisory | MTR | Sonoma | 5 hr |
| Dec 29, 11:16 AM PST | River Flood Watch | EKA | Humboldt | 7 hr |
| Dec 29, 11:19 AM PST | River Flood Watch | EKA | Humboldt | 5 hr |
| Dec 29, 11:41 AM PST | River Flood Warning | EKA | Mendocino | 11 hr |
| Dec 29, 11:53 AM PST | Wind Advisory | LOX | Los Angeles, San Luis Obispo, Santa Barbara, Ventura | 22 hr |
| Dec 29, 12:52 PM PST | Special Weather Statement | STO | Shasta | 23 min |
| Dec 29, 1:02 PM PST | Special Weather Statement | STO | Butte | 28 min |
| Dec 29, 1:06 PM PST | Special Weather Statement | STO | Tehama | 24 min |
| Dec 29, 1:33 PM PST | Special Weather Statement | STO | Tehama | 27 min |
| Dec 29, 2:02 PM PST | Special Weather Statement | STO | Tehama | 28 min |
| Dec 29, 2:05 PM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, San Mateo, Santa Clara and 2 more | 44 hr |
| Dec 29, 2:05 PM PST | Freeze Warning | MTR | Marin, Monterey, Napa, San Benito, Santa Clara, Sonoma | 44 hr |
| Dec 29, 2:20 PM PST | Red Flag Warning | LOX | Los Angeles, Ventura | 43 hr |
| Dec 29, 6:23 PM PST | River Flood Warning | EKA | Humboldt | 10 hr |
| Dec 29, 6:49 PM PST | Wind Advisory | REV | Mono | 3 hr |
| Dec 29, 9:45 PM PST | Dense Fog Advisory | HNX | Fresno, Kern, Kings, Madera, Merced, Tulare | 12 hr |
| Dec 30, 2:21 AM PST | Cold Weather Advisory | EKA | Mendocino | 30 hr |
| Dec 30, 11:38 AM PST | Wind Advisory | LOX | San Luis Obispo, Santa Barbara, Ventura | 21 hr |
| Dec 30, 1:41 PM PST | Small Craft Advisory | EKA | 13 hr | |
| Dec 31, 2:19 AM PST | Small Craft Advisory | LOX | 7 hr |
By product
Every kind of product issued here, grouped by hazard. Each opens the same place narrowed to that product.
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Sonoma County46
- Humboldt County43
- Los Angeles County36
- Ventura County35
- Marin County34
- Del Norte County32
- Kern County31
- Mariposa County30
- Fresno County29
- Tulare County29
- Siskiyou County29
- Mendocino County29
- Madera County28
- Santa Barbara County28
- Monterey County25
- Kings County24
- San Luis Obispo County24
- San Mateo County22
- Merced County21
- Modoc County20
- City and County of San Francisco20
- Alameda County19
- Napa County19
- Santa Cruz County19
- Contra Costa County17
- Santa Clara County16
- San Diego County15
- Sierra County15
- Lassen County14
- Plumas County14
- Nevada County12
- Orange County11
- San Bernardino County11
- El Dorado County11
- Placer County11
- Alpine County10
- San Benito County9
- Mono County8
- Tehama County8
- Riverside County7
Nearby
Alerts in force nowTornadoes on recordThe radar archive20232025
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.