Alert archive / California / 2020
Weather alerts in California, January 2020
267 weather alerts in January 2020, 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 2020. Tap one for its archive.
- Alerts
- 267
- Warnings
- 40
- Watches
- 40
- Advisories
- 173
- Busiest day
- January 14, 202019 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, 5:24 PM PST | Dense Fog Advisory | HNX | 18 hr | |
| Dec 31, 6:23 PM PST | Beach Hazards Statement | LOX | 8 hr | |
| Dec 31, 8:41 PM PST | Freezing Fog Advisory | HNX | 6 hr | |
| Dec 31, 9:22 PM PST | Gale Warning | LOX | 39 hr | |
| Jan 1, 2:53 AM PST | Wind Advisory | HNX | 33 hr | |
| Jan 1, 3:33 AM PST | High Wind Warning | LOX | 27 hr | |
| Jan 1, 3:33 AM PST | Wind Advisory | LOX | Los Angeles | 35 hr |
| Jan 1, 2:18 PM PST | High Wind Watch | MFR | Modoc, Siskiyou | 24 hr |
| Jan 2, 2:49 AM PST | Wind Advisory | MFR | Modoc | 49 hr |
| Jan 2, 3:03 AM PST | Dense Fog Advisory | STO | 7 hr | |
| Jan 2, 8:48 AM PST | Gale Watch | EKA | 6 hr | |
| Jan 2, 9:20 AM PST | Beach Hazards Statement | EKA | Del Norte, Humboldt, Mendocino | 10 hr |
| Jan 2, 12:29 PM PST | Small Craft Advisory | LOX | 20 hr | |
| Jan 2, 1:50 PM PST | Dense Fog Advisory | HNX | 21 hr | |
| Jan 2, 2:06 PM PST | High Wind Warning | MFR | Siskiyou | 38 hr |
| Jan 2, 2:32 PM PST | Gale Warning | EKA | 31 hr | |
| Jan 2, 6:04 PM PST | High Surf Advisory | LOX | 17 hr | |
| Jan 2, 9:56 PM PST | Freezing Fog Advisory | HNX | 8 hr | |
| Jan 3, 3:01 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 37 hr |
| Jan 3, 4:12 AM PST | High Wind Watch | LOX | 33 hr | |
| Jan 3, 8:43 AM PST | Small Craft Advisory | EKA | 3 days | |
| Jan 3, 1:00 PM PST | High Wind Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 24 hr |
| Jan 3, 1:50 PM PST | Beach Hazards Statement | LOX | 13 hr | |
| Jan 3, 2:00 PM PST | Small Craft Advisory | MTR | 3 days | |
| Jan 3, 8:35 PM PST | Gale Watch | LOX | 17 hr | |
| Jan 3, 9:34 PM PST | High Surf Advisory | LOX | 60 hr | |
| Jan 4, 12:19 AM PST | Wind Advisory | HNX | 41 hr | |
| Jan 4, 2:59 AM PST | Small Craft Advisory | LOX | 65 hr | |
| Jan 4, 12:58 PM PST | Beach Hazards Statement | LOX | 45 hr | |
| Jan 4, 1:00 PM PST | High Wind Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 49 hr |
| Jan 4, 1:00 PM PST | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 56 hr |
| Jan 4, 1:18 PM PST | Gale Warning | LOX | 44 hr | |
| Jan 4, 1:30 PM PST | High Wind Warning | LOX | 37 hr | |
| Jan 4, 1:30 PM PST | Wind Advisory | LOX | Los Angeles | 68 hr |
| Jan 4, 2:38 PM PST | Gale Warning | MTR | 18 hr | |
| Jan 4, 2:38 PM PST | Small Craft Advisory | MTR | 12 hr | |
| Jan 5, 1:48 AM PST | Dense Fog Advisory | HNX | 8 hr | |
| Jan 5, 2:17 AM PST | Small Craft Advisory | MTR | 43 hr | |
| Jan 5, 2:57 AM PST | Wind Advisory | VEF | San Bernardino | 35 hr |
| Jan 5, 4:32 AM PST | Dense Fog Advisory | STO | 7 hr | |
| Jan 5, 5:48 PM PST | Dense Fog Advisory | HNX | 6 hr | |
| Jan 5, 11:23 PM PST | Dense Fog Advisory | HNX | 11 hr | |
| Jan 6, 12:08 PM PST | Small Craft Advisory | LOX | 2 hr | |
| Jan 6, 2:25 PM PST | Small Craft Advisory | EKA | 4 days | |
| Jan 6, 9:51 PM PST | Dense Fog Advisory | HNX | 15 hr | |
| Jan 7, 1:58 AM PST | Dense Fog Advisory | STO | 8 hr | |
| Jan 7, 2:21 AM PST | Small Craft Advisory | MTR | 49 hr | |
| Jan 7, 3:01 AM PST | Gale Watch | EKA | 35 hr | |
| Jan 7, 3:50 AM PST | Gale Watch | LOX | 10 hr | |
| Jan 7, 3:50 AM PST | Small Craft Advisory | LOX | 3 days | |
| Jan 7, 10:03 AM PST | Dense Fog Advisory | STO | 117 min | |
| Jan 7, 10:29 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 18 hr |
| Jan 7, 11:49 AM PST | Wind Advisory | HNX | 22 hr | |
| Jan 7, 2:18 PM PST | Gale Warning | LOX | 54 hr | |
| Jan 7, 8:09 PM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 35 hr |
| Jan 7, 8:14 PM PST | Dense Fog Advisory | HNX | 14 hr | |
| Jan 7, 11:23 PM PST | Gale Watch | LOX | 15 hr | |
| Jan 8, 12:11 AM PST | Wind Advisory | LOX | Los Angeles | 51 hr |
| Jan 8, 2:24 AM PST | Small Craft Advisory | MTR | 19 hr | |
| Jan 8, 2:24 AM PST | Small Craft Advisory | MTR | 49 hr | |
| Jan 8, 2:30 AM PST | Winter Weather Advisory | STO | 33 hr | |
| Jan 8, 2:50 AM PST | Winter Weather Advisory | EKA | 27 hr | |
| Jan 8, 3:24 AM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Modoc, Nevada, Placer and 2 more | 31 hr |
| Jan 8, 6:31 AM PST | Freezing Fog Advisory | HNX | 3 hr | |
| Jan 8, 10:03 AM PST | Dense Fog Advisory | HNX | 85 min | |
| Jan 8, 1:16 PM PST | Small Craft Advisory | SGX | 32 hr | |
| Jan 8, 2:15 PM PST | Gale Warning | EKA | 28 hr | |
| Jan 8, 3:49 PM PST | Freezing Fog Advisory | HNX | 3 hr | |
| Jan 8, 6:44 PM PST | Wind Advisory | HNX | 24 hr | |
| Jan 8, 8:44 PM PST | Gale Warning | LOX | 24 hr | |
| Jan 8, 8:44 PM PST | Small Craft Advisory | LOX | 12 hr | |
| Jan 8, 9:49 PM PST | Winter Weather Advisory | STO | 9 hr | |
| Jan 9, 12:12 AM PST | Gale Warning | MTR | 14 hr | |
| Jan 9, 12:12 AM PST | Small Craft Advisory | MTR | 3 hr | |
| Jan 9, 1:48 AM PST | High Surf Advisory | LOX | 34 hr | |
| Jan 9, 3:14 AM PST | Wind Advisory | PSR | Imperial | 16 hr |
| Jan 9, 2:16 PM PST | Small Craft Advisory | MTR | 13 hr | |
| Jan 9, 2:35 PM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 5 days |
| Jan 9, 3:00 PM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 52 hr |
| Jan 9, 3:30 PM PST | Special Weather Statement | SGX | 45 min | |
| Jan 9, 8:22 PM PST | Small Craft Advisory | LOX | 18 hr | |
| Jan 9, 10:17 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 65 hr |
| Jan 10, 2:51 AM PST | Small Craft Advisory | EKA | 24 hr | |
| Jan 10, 2:51 AM PST | Hazardous Seas Warning | EKA | 48 hr | |
| Jan 10, 4:03 AM PST | Small Craft Advisory | MTR | 4 days | |
| Jan 10, 5:25 AM PST | Dense Fog Advisory | STO | 5 hr | |
| Jan 10, 5:43 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 6 hr |
| Jan 10, 8:04 AM PST | Dense Fog Advisory | HNX | 4 hr | |
| Jan 10, 11:53 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 28 hr |
| Jan 10, 11:53 AM PST | Wind Advisory | REV | Alpine, El Dorado, Mono, Nevada, Placer | 28 hr |
| Jan 10, 12:16 PM PST | Wind Advisory | HNX | 34 hr | |
| Jan 10, 2:06 PM PST | High Surf Advisory | LOX | 4 days | |
| Jan 10, 2:07 PM PST | Gale Watch | LOX | 24 hr | |
| Jan 10, 2:07 PM PST | Small Craft Advisory | LOX | 4 days | |
| Jan 10, 2:40 PM PST | Wind Advisory | LOX | Los Angeles | 36 hr |
| Jan 11, 2:07 AM PST | Beach Hazards Statement | LOX | 40 hr | |
| Jan 11, 3:57 AM PST | Winter Weather Advisory | EKA | 42 hr | |
| Jan 11, 5:27 AM PST | Dense Fog Advisory | HNX | 5 hr | |
| Jan 11, 7:53 AM PST | Small Craft Advisory | LOX | 19 hr | |
| Jan 11, 8:20 AM PST | Wind Advisory | VEF | Inyo, San Bernardino | 10 hr |
| Jan 11, 11:48 AM PST | High Wind Watch | REV | Mono | 25 hr |
| Jan 11, 11:48 AM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Modoc, Nevada, Placer and 2 more | 70 hr |
| Jan 11, 1:09 PM PST | Coastal Flood Advisory | EKA | Del Norte, Humboldt, Mendocino | 6 hr |
| Jan 11, 2:07 PM PST | Winter Weather Advisory | MFR | Siskiyou | 68 hr |
| Jan 11, 2:08 PM PST | Gale Warning | LOX | 13 hr | |
| Jan 12, 2:47 AM PST | Small Craft Advisory | LOX | 24 hr | |
| Jan 12, 2:50 AM PST | High Wind Watch | VEF | Inyo | 25 hr |
| Jan 12, 2:57 AM PST | Small Craft Advisory | EKA | 4 days | |
| Jan 12, 3:40 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 39 hr |
| Jan 12, 3:40 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 58 hr |
| Jan 12, 4:07 AM PST | Winter Storm Watch | MFR | Siskiyou | 58 hr |
| Jan 12, 4:20 AM PST | Winter Storm Watch | HNX | 56 hr | |
| Jan 12, 4:25 AM PST | Winter Storm Watch | STO | 58 hr | |
| Jan 12, 4:25 AM PST | Winter Weather Advisory | STO | 54 hr | |
| Jan 12, 1:02 PM PST | High Wind Warning | REV | Mono | 48 hr |
| Jan 12, 2:47 PM PST | Winter Weather Advisory | EKA | Del Norte, Humboldt, Trinity | 48 hr |
| Jan 12, 5:10 PM PST | Gale Warning | LOX | 9 hr | |
| Jan 12, 9:31 PM PST | Wind Advisory | HNX | 14 hr | |
| Jan 13, 2:38 AM PST | Small Craft Advisory | LOX | 48 hr | |
| Jan 13, 2:51 AM PST | Gale Watch | EKA | 24 hr | |
| Jan 13, 3:26 AM PST | Wind Advisory | VEF | Inyo | 37 hr |
| Jan 13, 6:29 AM PST | Dense Fog Advisory | HNX | 5 hr | |
| Jan 13, 6:29 AM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 37 hr |
| Jan 13, 2:02 PM PST | High Wind Watch | MFR | Siskiyou | 24 hr |
| Jan 13, 2:16 PM PST | Winter Storm Watch | EKA | Del Norte, Humboldt, Mendocino, Trinity | 24 hr |
| Jan 13, 2:27 PM PST | Small Craft Advisory | MTR | 13 hr | |
| Jan 13, 8:43 PM PST | Wind Advisory | HNX | 24 hr | |
| Jan 13, 8:58 PM PST | Small Craft Advisory | MTR | 30 hr | |
| Jan 14, 2:53 AM PST | Gale Watch | EKA | 12 hr | |
| Jan 14, 2:53 AM PST | Gale Warning | EKA | 47 hr | |
| Jan 14, 3:08 AM PST | Wind Advisory | EKA | Del Norte, Humboldt | 43 hr |
| Jan 14, 3:25 AM PST | High Wind Watch | REV | Lassen, Modoc, Plumas, Sierra | 25 hr |
| Jan 14, 3:37 AM PST | Gale Watch | MTR | 10 hr | |
| Jan 14, 3:37 AM PST | Small Craft Advisory | MTR | 24 hr | |
| Jan 14, 12:12 PM PST | Winter Storm Warning | HNX | 62 hr | |
| Jan 14, 1:33 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Mono, Nevada, Placer | 55 hr |
| Jan 14, 1:33 PM PST | Winter Weather Advisory | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 62 hr |
| Jan 14, 1:42 PM PST | Gale Warning | MTR | 48 hr | |
| Jan 14, 2:00 PM PST | High Wind Warning | MFR | Modoc, Siskiyou | 47 hr |
| Jan 14, 2:00 PM PST | Wind Advisory | MFR | Modoc | 47 hr |
| Jan 14, 2:00 PM PST | Winter Storm Warning | MFR | Siskiyou | 49 hr |
| Jan 14, 2:00 PM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 53 hr |
| Jan 14, 2:02 PM PST | Winter Weather Advisory | VEF | Inyo | 61 hr |
| Jan 14, 2:18 PM PST | Winter Storm Warning | STO | 64 hr | |
| Jan 14, 2:26 PM PST | Winter Storm Warning | EKA | Del Norte, Humboldt, Mendocino, Trinity | 50 hr |
| Jan 15, 2:36 AM PST | Winter Weather Advisory | SGX | San Bernardino | 51 hr |
| Jan 15, 3:04 AM PST | Storm Warning | EKA | 17 hr | |
| Jan 15, 3:13 AM PST | Small Craft Advisory | MTR | 42 hr | |
| Jan 15, 3:17 AM PST | Wind Advisory | VEF | Inyo | 42 hr |
| Jan 15, 4:12 AM PST | Wind Advisory | REV | Lassen, Modoc, Plumas, Sierra | 39 hr |
| Jan 15, 8:25 AM PST | Wind Advisory | STO | 26 hr | |
| Jan 15, 10:01 AM PST | Winter Weather Advisory | LOX | 39 hr | |
| Jan 15, 10:48 AM PST | Winter Weather Advisory | EKA | Humboldt, Mendocino | 29 hr |
| Jan 15, 12:38 PM PST | Flood Watch | EKA | Del Norte, Humboldt | 23 hr |
| Jan 15, 12:57 PM PST | Wind Advisory | HNX | 42 hr | |
| Jan 15, 12:59 PM PST | Winter Weather Advisory | HNX | 37 hr | |
| Jan 15, 1:15 PM PST | Wind Advisory | SGX | Riverside, San Bernardino, San Diego | 39 hr |
| Jan 15, 1:33 PM PST | Small Craft Advisory | SGX | 12 hr | |
| Jan 15, 2:12 PM PST | Small Craft Advisory | LOX | 43 hr | |
| Jan 15, 3:27 PM PST | High Wind Warning | EKA | Del Norte | 3 hr |
| Jan 15, 6:57 PM PST | Wind Advisory | LOX | Santa Barbara | 27 hr |
| Jan 15, 8:09 PM PST | Hazardous Seas Warning | EKA | 7 hr | |
| Jan 16, 1:57 AM PST | Small Craft Advisory | EKA | 4 days | |
| Jan 16, 4:42 AM PST | Gale Watch | EKA | 22 hr | |
| Jan 16, 8:41 AM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa, Marin, City and County of San Francisco, San Mateo | 106 min |
| Jan 16, 8:46 AM PST | Special Marine Warning | MTR | 29 min | |
| Jan 16, 9:02 AM PST | Small Craft Advisory | MTR | 3 hr | |
| Jan 16, 9:06 AM PST | Gale Warning | LOX | 5 hr | |
| Jan 16, 9:06 AM PST | Special Weather Statement | MTR | San Mateo | 24 min |
| Jan 16, 9:11 AM PST | Areal Flood Advisory | MTR | Alameda, Contra Costa | 76 min |
| Jan 16, 9:22 AM PST | Special Marine Warning | MTR | 23 min | |
| Jan 16, 9:27 AM PST | Areal Flood Advisory | MTR | Alameda, San Mateo, Santa Clara, Santa Cruz | 3 hr |
| Jan 16, 10:15 AM PST | Special Weather Statement | MTR | Santa Cruz | 60 min |
| Jan 16, 10:36 AM PST | Areal Flood Advisory | MTR | Monterey | 54 min |
| Jan 16, 11:23 AM PST | Mesoscale Discussion | SPC | Amador, Calaveras, El Dorado, Mariposa, Nevada, Placer and 2 more | 3 hr |
| Jan 16, 12:23 PM PST | Winter Weather Advisory | LOX | 10 hr | |
| Jan 16, 1:57 PM PST | Special Weather Statement | MTR | San Mateo | 18 min |
| Jan 16, 2:08 PM PST | Small Craft Advisory | MTR | 7 hr | |
| Jan 16, 3:36 PM PST | Special Marine Warning | MTR | 24 min | |
| Jan 16, 7:06 PM PST | Winter Weather Advisory | MFR | Modoc, Siskiyou | 3 hr |
| Jan 16, 8:21 PM PST | Small Craft Advisory | EKA | 3 days | |
| Jan 17, 12:28 AM PST | High Wind Warning | VEF | Inyo | 3 hr |
| Jan 17, 2:32 AM PST | Gale Warning | EKA | 37 hr | |
| Jan 17, 6:46 AM PST | Dense Fog Advisory | HNX | 5 hr | |
| Jan 17, 1:46 PM PST | Small Craft Advisory | MTR | 49 hr | |
| Jan 17, 2:56 PM PST | Dense Fog Advisory | HNX | 21 hr | |
| Jan 18, 4:45 AM PST | Dense Fog Advisory | STO | 6 hr | |
| Jan 18, 1:44 PM PST | Dense Fog Advisory | HNX | 17 hr | |
| Jan 19, 2:25 AM PST | Gale Watch | EKA | 12 hr | |
| Jan 19, 2:59 AM PST | High Wind Watch | MFR | Siskiyou | 10 hr |
| Jan 19, 1:27 PM PST | Wind Advisory | MFR | Siskiyou | 51 hr |
| Jan 19, 1:27 PM PST | Winter Storm Watch | MFR | Siskiyou | 13 hr |
| Jan 19, 1:58 PM PST | Gale Warning | EKA | 39 hr | |
| Jan 19, 2:59 PM PST | Winter Storm Watch | EKA | 13 hr | |
| Jan 19, 3:05 PM PST | Small Craft Advisory | MTR | 3 days | |
| Jan 19, 9:08 PM PST | Small Craft Advisory | EKA | 10 days | |
| Jan 20, 1:50 AM PST | High Surf Advisory | LOX | Los Angeles | 64 hr |
| Jan 20, 2:29 AM PST | Winter Storm Warning | MFR | Siskiyou | 36 hr |
| Jan 20, 2:29 AM PST | Winter Weather Advisory | MFR | Siskiyou | 36 hr |
| Jan 20, 2:48 AM PST | Wind Advisory | EKA | Del Norte, Humboldt | 27 hr |
| Jan 20, 4:28 AM PST | Winter Storm Warning | EKA | 35 hr | |
| Jan 20, 8:28 AM PST | Small Craft Advisory | MTR | 55 hr | |
| Jan 20, 8:52 AM PST | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 41 hr |
| Jan 20, 2:16 PM PST | Small Craft Advisory | LOX | 61 hr | |
| Jan 20, 2:22 PM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 32 hr |
| Jan 21, 1:52 AM PST | Wind Advisory | HNX | 31 hr | |
| Jan 21, 2:28 AM PST | Wind Advisory | REV | Lassen, Plumas, Sierra | 18 hr |
| Jan 21, 7:54 PM PST | Dense Fog Advisory | PSR | Imperial, Riverside | 14 hr |
| Jan 23, 1:07 AM PST | Dense Fog Advisory | HNX | 9 hr | |
| Jan 23, 1:31 AM PST | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 57 hr |
| Jan 23, 2:32 AM PST | Small Craft Advisory | LOX | 5 days | |
| Jan 23, 2:38 AM PST | Small Craft Advisory | MTR | 60 hr | |
| Jan 23, 10:20 AM PST | Dense Fog Advisory | HNX | 100 min | |
| Jan 23, 12:59 PM PST | High Surf Advisory | LOX | Los Angeles | 70 hr |
| Jan 23, 2:56 PM PST | High Surf Advisory | SGX | Orange, San Diego | 3 days |
| Jan 23, 6:26 PM PST | Dense Fog Advisory | HNX | 17 hr | |
| Jan 24, 4:23 AM PST | Dense Fog Advisory | SGX | San Diego | 4 hr |
| Jan 24, 9:38 AM PST | Wind Advisory | LOX | 23 hr | |
| Jan 24, 1:48 PM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 49 hr |
| Jan 24, 8:10 PM PST | Dense Fog Advisory | SGX | Orange, San Diego | 14 hr |
| Jan 24, 11:08 PM PST | Dense Fog Advisory | LOX | 11 hr | |
| Jan 25, 4:53 AM PST | Dense Fog Advisory | STO | 5 hr | |
| Jan 25, 4:57 AM PST | Dense Fog Advisory | HNX | 5 hr | |
| Jan 25, 2:50 PM PST | Small Craft Advisory | MTR | 6 days | |
| Jan 25, 3:04 PM PST | Wind Advisory | HNX | 35 hr | |
| Jan 25, 9:31 PM PST | Small Craft Advisory | LOX | 5 days | |
| Jan 26, 4:33 AM PST | Wind Advisory | LOX | Los Angeles | 4 days |
| Jan 26, 5:51 AM PST | High Surf Advisory | LOX | Los Angeles | 5 days |
| Jan 26, 3:57 PM PST | Dense Fog Advisory | HNX | 6 hr | |
| Jan 27, 5:47 AM PST | Dense Fog Advisory | HNX | 4 hr | |
| Jan 27, 9:15 AM PST | Gale Watch | LOX | 29 hr | |
| Jan 27, 12:01 PM PST | High Wind Watch | LOX | Los Angeles | 21 hr |
| Jan 27, 12:01 PM PST | Wind Advisory | LOX | 15 hr | |
| Jan 27, 6:29 PM PST | Dense Fog Advisory | HNX | 11 hr | |
| Jan 27, 8:09 PM PST | High Wind Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 17 hr |
| Jan 27, 8:09 PM PST | Wind Advisory | SGX | Orange, Riverside, San Bernardino, San Diego | 4 days |
| Jan 28, 2:09 AM PST | Wind Advisory | PSR | Imperial, Riverside, San Bernardino | 39 hr |
| Jan 28, 2:59 AM PST | High Wind Warning | LOX | 51 hr | |
| Jan 28, 3:08 AM PST | Wind Advisory | VEF | San Bernardino | 41 hr |
| Jan 28, 3:12 AM PST | Small Craft Advisory | MTR | 3 days | |
| Jan 28, 8:32 AM PST | Gale Warning | LOX | 30 hr | |
| Jan 28, 9:23 AM PST | Wind Advisory | LOX | 48 hr | |
| Jan 28, 1:07 PM PST | High Wind Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 48 hr |
| Jan 29, 8:59 AM PST | Small Craft Advisory | MTR | 49 hr | |
| Jan 29, 1:10 PM PST | Beach Hazards Statement | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 43 hr |
| Jan 29, 2:43 PM PST | Small Craft Advisory | EKA | 42 hr | |
| Jan 30, 5:02 AM PST | Beach Hazards Statement | EKA | Del Norte, Humboldt, Mendocino | 16 hr |
| Jan 30, 5:34 AM PST | Wind Advisory | LOX | 4 hr | |
| Jan 30, 9:07 AM PST | Small Craft Advisory | LOX | 24 hr | |
| Jan 30, 2:29 PM PST | Wind Advisory | LOX | Los Angeles | 18 hr |
| Jan 31, 2:05 AM PST | Small Craft Advisory | MTR | 59 hr | |
| Jan 31, 5:45 AM PST | Dense Fog Advisory | HNX | 4 hr | |
| Jan 31, 12:31 PM PST | High Wind Watch | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more | 25 hr |
| Jan 31, 12:41 PM PST | High Wind Watch | HNX | 25 hr | |
| Jan 31, 12:41 PM PST | Wind Advisory | HNX | 57 hr | |
| Jan 31, 12:59 PM PST | Gale Watch | SGX | 23 hr | |
| Jan 31, 1:48 PM PST | Lake Wind Advisory | REV | Alpine, El Dorado, Nevada, Placer | 53 hr |
| Jan 31, 1:48 PM PST | Wind Advisory | REV | Mono | 62 hr |
| Jan 31, 2:08 PM PST | Gale Watch | LOX | 24 hr | |
| Jan 31, 2:08 PM PST | Storm Watch | LOX | 24 hr | |
| Jan 31, 2:08 PM PST | Gale Warning | MTR | 4 days | |
| Jan 31, 2:08 PM PST | Storm Watch | MTR | 24 hr | |
| Jan 31, 2:12 PM PST | High Wind Watch | LOX | Los Angeles | 26 hr |
| Jan 31, 2:52 PM PST | Gale Watch | EKA | 24 hr | |
| Jan 31, 2:52 PM PST | Small Craft Advisory | EKA | 5 days | |
| Jan 31, 2:59 PM PST | High Wind Watch | EKA | Mendocino | 92 min |
| Jan 31, 3:01 PM PST | High Wind Watch | SGX | Riverside, San Bernardino, San Diego | 22 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 | |
| Mesoscale Discussion | 1 |
| Special Weather Statement | 4 |
| Flooding | |
| Flood Watch | 1 |
| Areal Flood Advisory | 4 |
| Winter | |
| Winter Storm Warning | 7 |
| Winter Storm Watch | 7 |
| Winter Weather Advisory | 21 |
| Wind and dust | |
| High Wind Warning | 10 |
| High Wind Watch | 15 |
| Lake Wind Advisory | 9 |
| Wind Advisory | 42 |
| Fog and smoke | |
| Dense Fog Advisory | 33 |
| Freezing Fog Advisory | 4 |
| Coast and beach | |
| Coastal Flood Advisory | 1 |
| High Surf Advisory | 10 |
| Beach Hazards Statement | 9 |
| Marine | |
| Gale Warning | 17 |
| Hazardous Seas Warning | 2 |
| Special Marine Warning | 3 |
| Storm Warning | 1 |
| Gale Watch | 15 |
| Storm Watch | 2 |
| Small Craft Advisory | 49 |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Siskiyou County16
- El Dorado County16
- Nevada County16
- Placer County16
- Alpine County15
- San Bernardino County13
- Modoc County12
- Los Angeles County11
- Del Norte County11
- Humboldt County11
- San Diego County11
- Riverside County10
- San Mateo County9
- Mendocino County8
- Orange County8
- Lassen County7
- Plumas County7
- Sierra County7
- Santa Cruz County7
- Marin County6
- Monterey County6
- City and County of San Francisco6
- Mono County6
- Inyo County6
- Sonoma County5
- Alameda County4
- Imperial County3
- Trinity County3
- Contra Costa County3
- Santa Clara County2
- Santa Barbara County1
- Amador County1
- Calaveras County1
- Mariposa County1
- Tuolumne County1
- Yuba County1
- Napa County1
- San Benito County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20192021
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.