Alert archive / California / Winter Storm Warnings
Winter Storm Warnings in California, 2011
63 winter storm warnings in 2011. 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 2011. Tap one for its archive.
- Winter Storm Warnings
- 63
- Busiest month
- March23 winter storm warnings
- Busiest day
- March 19, 20117 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 1, 11:30 AM PST | Winter Storm Warning | LOX | 51 hr | |
| Jan 1, 12:32 PM PST | Winter Storm Warning | HNX | 45 hr | |
| Jan 1, 2:18 PM PST | Winter Storm Warning | REV | Mono | 31 hr |
| Jan 1, 3:11 PM PST | Winter Storm Warning | VEF | Inyo | 49 hr |
| Jan 2, 3:44 AM PST | Winter Storm Warning | SGX | San Bernardino | 24 hr |
| Feb 14, 3:00 AM PST | Winter Storm Warning | MFR | Siskiyou | 4 days |
| Feb 14, 3:14 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 55 hr |
| Feb 14, 8:55 PM PST | Winter Storm Warning | STO | 45 hr | |
| Feb 15, 1:00 PM PST | Winter Storm Warning | HNX | 23 hr | |
| Feb 15, 3:06 PM PST | Winter Storm Warning | VEF | Inyo | 27 hr |
| Feb 16, 9:55 PM PST | Winter Storm Warning | STO | 61 hr | |
| Feb 16, 10:13 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 59 hr |
| Feb 17, 3:20 AM PST | Winter Storm Warning | HNX | 69 hr | |
| Feb 17, 2:42 PM PST | Winter Storm Warning | LOX | 43 hr | |
| Feb 17, 2:42 PM PST | Winter Storm Warning | VEF | Inyo | 43 hr |
| Feb 18, 2:31 AM PST | Winter Storm Warning | SGX | Riverside, San Bernardino | 49 hr |
| Feb 23, 1:41 AM PST | Winter Storm Warning | MFR | Siskiyou | 37 hr |
| Feb 23, 3:17 PM PST | Winter Storm Warning | STO | 54 hr | |
| Feb 23, 3:25 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 60 hr |
| Feb 24, 3:05 AM PST | Winter Storm Warning | HNX | 54 hr | |
| Feb 24, 3:17 AM PST | Winter Storm Warning | VEF | Inyo | 3 days |
| Feb 24, 3:35 PM PST | Winter Storm Warning | LOX | 53 hr | |
| Feb 25, 3:26 AM PST | Winter Storm Warning | SGX | Orange, Riverside, San Bernardino, San Diego | 48 hr |
| Feb 25, 3:52 AM PST | Winter Storm Warning | MTR | Monterey | 29 hr |
| Feb 26, 4:43 PM PST | Winter Storm Warning | SGX | San Bernardino | 2 hr |
| Mar 1, 3:10 AM PST | Winter Storm Warning | STO | 33 hr | |
| Mar 1, 3:54 AM PST | Winter Storm Warning | MFR | Siskiyou | 36 hr |
| Mar 1, 11:33 AM PST | Winter Storm Warning | HNX | 22 hr | |
| Mar 17, 3:17 AM PDT | Winter Storm Warning | STO | 4 days | |
| Mar 17, 3:42 AM PDT | Winter Storm Warning | EKA | 38 hr | |
| Mar 17, 3:44 AM PDT | Winter Storm Warning | MFR | Siskiyou | 35 hr |
| Mar 17, 3:16 PM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 41 hr |
| Mar 18, 1:35 PM PDT | Winter Storm Warning | HNX | 13 hr | |
| Mar 19, 3:06 AM PDT | Winter Storm Warning | MFR | Siskiyou | 34 hr |
| Mar 19, 4:48 AM PDT | Winter Storm Warning | SGX | Riverside, San Bernardino | 46 hr |
| Mar 19, 5:56 AM PDT | Winter Storm Warning | LOX | 54 hr | |
| Mar 19, 10:47 AM PDT | Winter Storm Warning | HNX | 52 hr | |
| Mar 19, 2:43 PM PDT | Winter Storm Warning | EKA | 25 hr | |
| Mar 19, 2:59 PM PDT | Winter Storm Warning | VEF | Inyo | 44 hr |
| Mar 19, 3:17 PM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 37 hr |
| Mar 22, 2:41 AM PDT | Winter Storm Warning | EKA | 3 days | |
| Mar 22, 3:55 AM PDT | Winter Storm Warning | STO | 5 days | |
| Mar 22, 8:55 AM PDT | Winter Storm Warning | MFR | Siskiyou | 66 hr |
| Mar 22, 11:54 AM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 71 hr |
| Mar 22, 1:42 PM PDT | Winter Storm Warning | HNX | 63 hr | |
| Mar 23, 11:30 AM PDT | Winter Storm Warning | VEF | Inyo | 13 hr |
| Mar 24, 3:20 AM PDT | Winter Storm Warning | LOX | 30 hr | |
| Mar 25, 3:08 AM PDT | Winter Storm Warning | MFR | Siskiyou | 32 hr |
| May 14, 12:49 PM PDT | Winter Storm Warning | HNX | 32 hr | |
| May 14, 3:14 PM PDT | Winter Storm Warning | STO | 31 hr | |
| May 15, 9:22 PM PDT | Winter Storm Warning | STO | 56 hr | |
| May 16, 2:34 AM PDT | Winter Storm Warning | HNX | 56 hr | |
| Jun 5, 11:01 AM PDT | Winter Storm Warning | HNX | 24 hr | |
| Oct 3, 2:44 PM PDT | Winter Storm Warning | STO | 55 hr | |
| Oct 3, 3:52 PM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Mono, Nevada, Placer | 43 hr |
| Oct 3, 9:00 PM PDT | Winter Storm Warning | HNX | 53 hr | |
| Oct 3, 9:45 PM PDT | Winter Storm Warning | VEF | Inyo | 41 hr |
| Nov 5, 3:53 AM PDT | Winter Storm Warning | STO | 31 hr | |
| Dec 1, 5:22 PM PST | Winter Storm Warning | SGX | San Bernardino | 14 hr |
| Dec 11, 1:45 PM PST | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 47 hr |
| Dec 11, 2:13 PM PST | Winter Storm Warning | HNX | 43 hr | |
| Dec 11, 2:39 PM PST | Winter Storm Warning | LOX | 43 hr | |
| Dec 16, 5:23 PM PST | Winter Storm Warning | SGX | San Diego | 10 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 archive20102012
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.