Alert archive / California / Winter Storm Watches
Winter Storm Watches in California, 2011
65 winter storm watches 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 watches reaches back to 2005.
Winter Storm Watches by county
Each county as a circle sized by its count in 2011. Tap one for its archive.
- Winter Storm Watches
- 65
- Busiest month
- February24 winter storm watches
- Busiest day
- January 1, 20116 winter storm watches
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 |
|---|---|---|---|---|
| Dec 31, 8:46 PM PST | Winter Storm Watch | HNX | 16 hr | |
| Jan 1, 2:16 AM PST | Winter Storm Watch | VEF | Inyo | 13 hr |
| Jan 1, 3:29 AM PST | Winter Storm Watch | LOX | 8 hr | |
| Jan 1, 11:30 AM PST | Winter Storm Watch | LOX | 22 hr | |
| Jan 1, 12:32 PM PST | Winter Storm Watch | HNX | 23 hr | |
| Jan 1, 3:11 PM PST | Winter Storm Watch | VEF | San Bernardino | 24 hr |
| Jan 28, 11:30 AM PST | Winter Storm Watch | HNX | 27 hr | |
| Feb 12, 2:32 PM PST | Winter Storm Watch | MFR | Modoc, Siskiyou | 36 hr |
| Feb 13, 3:23 PM PST | Winter Storm Watch | STO | 48 hr | |
| Feb 13, 3:29 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 48 hr |
| Feb 14, 3:50 AM PST | Winter Storm Watch | EKA | 20 hr | |
| Feb 14, 1:39 PM PST | Winter Storm Watch | HNX | 23 hr | |
| Feb 14, 2:29 PM PST | Winter Storm Watch | VEF | Inyo | 25 hr |
| Feb 16, 3:45 AM PST | Winter Storm Watch | STO | 18 hr | |
| Feb 16, 4:24 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 18 hr |
| Feb 16, 12:15 PM PST | Winter Storm Watch | HNX | 47 hr | |
| Feb 17, 3:43 AM PST | Winter Storm Watch | LOX | 11 hr | |
| Feb 17, 4:25 AM PST | Winter Storm Watch | VEF | Inyo | 10 hr |
| Feb 17, 1:46 PM PST | Winter Storm Watch | SGX | Riverside, San Bernardino | 13 hr |
| Feb 21, 3:10 PM PST | Winter Storm Watch | MFR | Siskiyou | 47 hr |
| Feb 22, 3:15 AM PST | Winter Storm Watch | STO | 36 hr | |
| Feb 22, 3:15 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 24 hr |
| Feb 23, 4:06 AM PST | Winter Storm Watch | MTR | 9 hr | |
| Feb 23, 1:26 PM PST | Winter Storm Watch | MTR | Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz | 13 hr |
| Feb 23, 3:05 PM PST | Winter Storm Watch | HNX | 25 hr | |
| Feb 23, 3:11 PM PST | Winter Storm Watch | VEF | Inyo | 24 hr |
| Feb 24, 3:16 AM PST | Winter Storm Watch | LOX | Santa Barbara | 24 hr |
| Feb 24, 4:17 AM PST | Winter Storm Watch | SGX | Orange, Riverside, San Bernardino, San Diego | 23 hr |
| Feb 28, 2:00 AM PST | Winter Storm Watch | HNX | 34 hr | |
| Feb 28, 3:30 AM PST | Winter Storm Watch | STO | 24 hr | |
| Feb 28, 3:27 PM PST | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| Mar 16, 2:33 PM PDT | Winter Storm Watch | MFR | Siskiyou | 13 hr |
| Mar 16, 3:24 PM PDT | Winter Storm Watch | EKA | 16 hr | |
| Mar 16, 3:32 PM PDT | Winter Storm Watch | STO | 12 hr | |
| Mar 16, 6:50 PM PDT | Winter Storm Watch | HNX | 32 hr | |
| Mar 17, 3:54 AM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 11 hr |
| Mar 18, 2:37 PM PDT | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| Mar 18, 3:07 PM PDT | Winter Storm Watch | LOX | 15 hr | |
| Mar 18, 3:27 PM PDT | Winter Storm Watch | EKA | 23 hr | |
| Mar 18, 4:30 PM PDT | Winter Storm Watch | VEF | Inyo | 22 hr |
| Mar 19, 2:59 AM PDT | Winter Storm Watch | HNX | 8 hr | |
| Mar 19, 4:06 AM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 13 hr |
| Mar 20, 2:54 PM PDT | Winter Storm Watch | STO | 37 hr | |
| Mar 20, 3:27 PM PDT | Winter Storm Watch | EKA | 35 hr | |
| Mar 21, 2:48 PM PDT | Winter Storm Watch | MFR | Siskiyou | 37 hr |
| Mar 21, 3:07 PM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 21 hr |
| Mar 21, 4:19 PM PDT | Winter Storm Watch | HNX | 21 hr | |
| Mar 22, 11:54 AM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 28 hr |
| Mar 23, 3:29 AM PDT | Winter Storm Watch | STO | 12 hr | |
| Mar 23, 12:58 PM PDT | Winter Storm Watch | HNX | 14 hr | |
| Mar 23, 1:24 PM PDT | Winter Storm Watch | LOX | 14 hr | |
| Mar 24, 2:59 PM PDT | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| May 13, 2:19 PM PDT | Winter Storm Watch | STO | 24 min | |
| May 13, 2:43 PM PDT | Winter Storm Watch | STO | 25 hr | |
| May 13, 8:33 PM PDT | Winter Storm Watch | HNX | 16 hr | |
| May 15, 8:30 PM PDT | Winter Storm Watch | HNX | 6 hr | |
| Jun 4, 12:58 PM PDT | Winter Storm Watch | HNX | 22 hr | |
| Oct 2, 1:35 PM PDT | Winter Storm Watch | HNX | 31 hr | |
| Oct 2, 2:17 PM PDT | Winter Storm Watch | VEF | Inyo | 31 hr |
| Oct 2, 2:46 PM PDT | Winter Storm Watch | STO | 24 hr | |
| Oct 2, 3:07 PM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 25 hr |
| Nov 4, 2:23 PM PDT | Winter Storm Watch | STO | 14 hr | |
| Dec 10, 1:30 PM PST | Winter Storm Watch | SGX | Riverside, San Bernardino, San Diego | 24 hr |
| Dec 10, 2:44 PM PST | Winter Storm Watch | LOX | 24 hr | |
| Dec 10, 3:27 PM PST | Winter Storm Watch | HNX | 23 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Alpine County8
- El Dorado County8
- Nevada County8
- Placer County8
- Siskiyou County7
- Lassen County7
- Plumas County7
- Sierra County7
- Inyo County6
- Mono County6
- San Bernardino County4
- Modoc County3
- Riverside County3
- San Diego County2
- Monterey County1
- San Benito County1
- San Mateo County1
- Santa Clara County1
- Santa Cruz County1
- Santa Barbara County1
- Orange County1
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. Warning verification from the Mesonet's Cow. Rebuilt daily.