Alert archive / California / Winter Storm Warnings
Winter Storm Warnings in California, 2012
74 winter storm warnings in 2012. 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 2012. Tap one for its archive.
- Winter Storm Warnings
- 74
- Busiest month
- March19 winter storm warnings
- Busiest day
- January 22, 20126 winter storm warnings
Over time
By month
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 |
|---|---|---|---|---|
| Jan 17, 4:15 AM PST | Winter Storm Warning | MFR | Modoc, Siskiyou | 66 hr |
| Jan 17, 3:40 PM PST | Winter Storm Warning | EKA | 31 hr | |
| Jan 17, 3:46 PM PST | Winter Storm Warning | STO | 52 hr | |
| Jan 19, 2:25 PM PST | Winter Storm Warning | VEF | Inyo | 46 hr |
| Jan 19, 2:30 PM PST | Winter Storm Warning | HNX | 47 hr | |
| Jan 19, 3:16 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Mono, Nevada, Placer | 43 hr |
| Jan 19, 3:27 PM PST | Winter Storm Warning | STO | 36 hr | |
| Jan 20, 3:26 AM PST | Winter Storm Warning | MFR | Siskiyou | 31 hr |
| Jan 21, 2:53 PM PST | Winter Storm Warning | EKA | 36 hr | |
| Jan 21, 3:28 PM PST | Winter Storm Warning | MFR | Siskiyou | 38 hr |
| Jan 22, 3:12 AM PST | Winter Storm Warning | STO | 33 hr | |
| Jan 22, 3:30 AM PST | Winter Storm Warning | VEF | Inyo | 36 hr |
| Jan 22, 3:31 AM PST | Winter Storm Warning | HNX | 38 hr | |
| Jan 22, 4:00 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 36 hr |
| Jan 22, 4:48 AM PST | Winter Storm Warning | LOX | 37 hr | |
| Jan 22, 1:20 PM PST | Winter Storm Warning | SGX | San Bernardino | 29 hr |
| Feb 15, 12:23 PM PST | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 25 hr |
| Feb 26, 3:19 AM PST | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 52 hr |
| Feb 27, 12:47 PM PST | Winter Storm Warning | MFR | Siskiyou | 63 hr |
| Feb 27, 2:35 PM PST | Winter Storm Warning | STO | 3 days | |
| Feb 27, 2:40 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 69 hr |
| Feb 27, 3:45 PM PST | Winter Storm Warning | EKA | 36 hr | |
| Feb 28, 1:24 PM PST | Winter Storm Warning | HNX | 37 hr | |
| Mar 11, 3:02 PM PDT | Winter Storm Warning | MFR | Siskiyou | 46 hr |
| Mar 11, 3:15 PM PDT | Winter Storm Warning | EKA | 42 hr | |
| Mar 11, 3:20 PM PDT | Winter Storm Warning | STO | 68 hr | |
| Mar 15, 12:19 PM PDT | Winter Storm Warning | HNX | 71 hr | |
| Mar 15, 2:16 PM PDT | Winter Storm Warning | VEF | Inyo | 62 hr |
| Mar 15, 2:31 PM PDT | Winter Storm Warning | MFR | Siskiyou | 37 hr |
| Mar 15, 3:03 PM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 54 hr |
| Mar 15, 3:07 PM PDT | Winter Storm Warning | STO | 36 hr | |
| Mar 16, 3:15 AM PDT | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 66 hr |
| Mar 16, 2:31 PM PDT | Winter Storm Warning | LOX | 44 hr | |
| Mar 24, 3:00 AM PDT | Winter Storm Warning | SGX | San Bernardino | 48 hr |
| Mar 24, 3:07 AM PDT | Winter Storm Warning | LOX | 48 hr | |
| Mar 24, 3:16 PM PDT | Winter Storm Warning | HNX | 34 hr | |
| Mar 26, 3:37 AM PDT | Winter Storm Warning | SGX | San Bernardino | 4 hr |
| Mar 26, 11:20 AM PDT | Winter Storm Warning | MFR | Siskiyou | 43 hr |
| Mar 26, 1:26 PM PDT | Winter Storm Warning | STO | 37 hr | |
| Mar 27, 3:35 AM PDT | Winter Storm Warning | EKA | 24 hr | |
| Mar 30, 1:25 PM PDT | Winter Storm Warning | HNX | 38 hr | |
| Mar 30, 3:34 PM PDT | Winter Storm Warning | STO | 39 hr | |
| Apr 5, 8:57 AM PDT | Winter Storm Warning | REV | Modoc | 6 hr |
| Apr 11, 3:33 PM PDT | Winter Storm Warning | MFR | Siskiyou | 18 hr |
| Apr 11, 8:08 PM PDT | Winter Storm Warning | STO | 46 hr | |
| Apr 12, 2:57 AM PDT | Winter Storm Warning | HNX | 60 hr | |
| Apr 12, 4:43 AM PDT | Winter Storm Warning | LOX | 46 hr | |
| Apr 12, 9:17 AM PDT | Winter Storm Warning | MFR | Siskiyou | 23 hr |
| Apr 12, 9:25 AM PDT | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 52 hr |
| Apr 12, 3:10 PM PDT | Winter Storm Warning | VEF | Inyo | 42 hr |
| Apr 14, 3:23 AM PDT | Winter Storm Warning | LOX | 12 hr | |
| Oct 21, 2:39 AM PDT | Winter Storm Warning | MFR | Siskiyou | 32 hr |
| Oct 21, 3:56 AM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 55 hr |
| Oct 21, 4:33 AM PDT | Winter Storm Warning | STO | 48 hr | |
| Oct 21, 12:16 PM PDT | Winter Storm Warning | HNX | 32 hr | |
| Nov 9, 3:51 AM PST | Winter Storm Warning | SGX | San Diego | 15 hr |
| Nov 16, 10:08 PM PST | Winter Storm Warning | HNX | 36 hr | |
| Nov 17, 4:02 AM PST | Winter Storm Warning | STO | 30 hr | |
| Nov 27, 2:58 PM PST | Winter Storm Warning | MFR | Siskiyou | 47 hr |
| Nov 28, 3:54 PM PST | Winter Storm Warning | STO | 42 hr | |
| Dec 2, 9:00 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Mono, Nevada, Placer | 10 hr |
| Dec 11, 1:13 PM PST | Winter Storm Warning | SGX | San Bernardino | 14 hr |
| Dec 14, 3:27 AM PST | Winter Storm Warning | PSR | 10 hr | |
| Dec 15, 3:26 PM PST | Winter Storm Warning | MFR | Siskiyou | 43 hr |
| Dec 16, 4:12 AM PST | Winter Storm Warning | STO | 43 hr | |
| Dec 18, 2:30 PM PST | Winter Storm Warning | MFR | Modoc, Siskiyou | 5 days |
| Dec 18, 2:36 PM PST | Winter Storm Warning | EKA | 5 days | |
| Dec 18, 3:13 PM PST | Winter Storm Warning | STO | 5 days | |
| Dec 20, 3:41 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 4 days |
| Dec 20, 3:52 AM PST | Winter Storm Warning | HNX | 4 days | |
| Dec 22, 9:39 PM PST | Winter Storm Warning | VEF | Inyo | 24 hr |
| Dec 24, 2:23 PM PST | Winter Storm Warning | MFR | Siskiyou | 25 hr |
| Dec 24, 2:41 PM PST | Winter Storm Warning | EKA | 43 hr | |
| Dec 24, 3:13 PM PST | Winter Storm Warning | STO | 52 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
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. Rebuilt daily.