Alert archive / California / Winter Storm Warnings / 2023
Winter Storm Warnings in California, February 2023
25 winter storm warnings in February 2023. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of winter storm warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in February 2023. Tap one for its archive.
- Winter Storm Warnings
- 25
- Busiest day
- February 20, 20234 winter storm warnings
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 |
|---|---|---|---|---|
| Feb 3, 11:58 AM PST | Winter Storm Warning | HNX | Fresno, Kern, Madera, Mariposa, Tulare, Tuolumne | 58 hr |
| Feb 3, 12:55 PM PST | Winter Storm Warning | STO | 56 hr | |
| Feb 3, 1:34 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Mono, Nevada, Placer | 53 hr |
| Feb 4, 2:17 PM PST | Winter Storm Warning | EKA | 12 hr | |
| Feb 13, 12:42 PM PST | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 29 hr |
| Feb 19, 9:18 PM PST | Winter Storm Warning | MFR | Siskiyou | 5 days |
| Feb 20, 4:47 AM PST | Winter Storm Warning | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 4 days |
| Feb 20, 11:48 AM PST | Winter Storm Warning | HNX | Fresno, Kern, Madera, Mariposa, Tulare, Tuolumne | 5 days |
| Feb 20, 3:34 PM PST | Winter Storm Warning | STO | 5 days | |
| Feb 20, 7:47 PM PST | Winter Storm Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 5 days |
| Feb 20, 8:25 PM PST | Winter Storm Warning | LOX | San Luis Obispo, Santa Barbara | 5 days |
| Feb 22, 10:28 AM PST | Winter Storm Warning | HNX | Kern | 4 days |
| Feb 22, 12:53 PM PST | Winter Storm Warning | MFR | Siskiyou | 45 hr |
| Feb 22, 12:56 PM PST | Winter Storm Warning | VEF | Inyo, San Bernardino | 3 days |
| Feb 22, 3:39 PM PST | Winter Storm Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 45 hr |
| Feb 23, 4:12 AM PST | Winter Storm Warning | REV | Mono | 3 days |
| Feb 24, 1:33 PM PST | Winter Storm Warning | SGX | San Bernardino | 38 hr |
| Feb 25, 4:00 AM PST | Winter Storm Warning | STO | 4 days | |
| Feb 25, 1:32 PM PST | Winter Storm Warning | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 72 hr |
| Feb 25, 3:18 PM PST | Winter Storm Warning | MFR | Siskiyou | 3 days |
| Feb 25, 4:19 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 3 days |
| Feb 26, 2:33 AM PST | Winter Storm Warning | HNX | Fresno, Kern, Madera, Mariposa, Tulare, Tuolumne | 4 days |
| Feb 26, 2:17 PM PST | Winter Storm Warning | VEF | Inyo | 3 days |
| Feb 27, 12:25 PM PST | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 60 hr |
| Feb 27, 1:45 PM PST | Winter Storm Warning | LOX | Santa Barbara | 54 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- San Bernardino County5
- Kern County4
- Fresno County3
- Madera County3
- Mariposa County3
- Tulare County3
- Tuolumne County3
- Mono County3
- Riverside County3
- San Diego County3
- Siskiyou County3
- Alpine County2
- El Dorado County2
- Nevada County2
- Placer County2
- Del Norte County2
- Humboldt County2
- Lake County2
- Mendocino County2
- Trinity County2
- Santa Barbara County2
- Inyo County2
- Orange County1
- San Luis Obispo County1
- Alameda County1
- Contra Costa County1
- Marin County1
- Monterey County1
- Napa County1
- San Benito County1
- San Mateo County1
- Santa Clara County1
- Santa Cruz County1
- Sonoma County1
- Lassen County1
- Plumas County1
- Sierra County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20222024
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.