Alert archive / California / Winter Storm Watches
Winter Storm Watches in California, 2009
52 winter storm watches in 2009. 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 2009. Tap one for its archive.
- Winter Storm Watches
- 52
- Busiest month
- February23 winter storm watches
- Busiest day
- December 5, 20096 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, 4:01 PM PST | Winter Storm Watch | STO | 23 hr | |
| Jan 22, 3:16 PM PST | Winter Storm Watch | STO | 13 hr | |
| Feb 4, 2:03 PM PST | Winter Storm Watch | HNX | 23 hr | |
| Feb 4, 3:44 PM PST | Winter Storm Watch | VEF | Inyo | 48 hr |
| Feb 5, 5:53 PM PST | Winter Storm Watch | LOX | 10 hr | |
| Feb 7, 2:30 PM PST | Winter Storm Watch | HNX | 13 hr | |
| Feb 9, 2:03 PM PST | Winter Storm Watch | MFR | Siskiyou | 13 hr |
| Feb 9, 3:45 PM PST | Winter Storm Watch | STO | 19 hr | |
| Feb 10, 2:50 PM PST | Winter Storm Watch | HNX | 6 hr | |
| Feb 11, 1:29 PM PST | Winter Storm Watch | HNX | 25 hr | |
| Feb 11, 1:59 PM PST | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| Feb 11, 2:21 PM PST | Winter Storm Watch | EKA | 14 hr | |
| Feb 12, 4:30 AM PST | Winter Storm Watch | STO | 10 hr | |
| Feb 12, 2:54 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 69 hr |
| Feb 12, 3:12 PM PST | Winter Storm Watch | STO | 48 hr | |
| Feb 12, 8:16 PM PST | Winter Storm Watch | LOX | 7 hr | |
| Feb 13, 3:11 AM PST | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| Feb 13, 3:45 AM PST | Winter Storm Watch | EKA | 24 hr | |
| Feb 13, 2:31 PM PST | Winter Storm Watch | HNX | 36 hr | |
| Feb 13, 3:01 PM PST | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| Feb 14, 1:46 PM PST | Winter Storm Watch | SGX | Riverside, San Bernardino | 25 hr |
| Feb 14, 3:46 PM PST | Winter Storm Watch | LOX | 13 hr | |
| Feb 14, 3:52 PM PST | Winter Storm Watch | VEF | Inyo | 35 hr |
| Feb 24, 2:22 PM PST | Winter Storm Watch | MFR | Siskiyou | 12 hr |
| Feb 28, 3:48 PM PST | Winter Storm Watch | STO | 23 hr | |
| Mar 1, 3:14 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 13 hr |
| Mar 2, 2:20 AM PST | Winter Storm Watch | MFR | Siskiyou | 13 hr |
| Mar 2, 3:00 PM PST | Winter Storm Watch | HNX | 12 hr | |
| Mar 19, 1:45 PM PDT | Winter Storm Watch | HNX | 24 hr | |
| Mar 20, 3:34 AM PDT | Winter Storm Watch | STO | 12 hr | |
| Mar 20, 4:04 AM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 24 hr |
| Mar 20, 3:48 PM PDT | Winter Storm Watch | LOX | 30 hr | |
| Apr 30, 2:29 PM PDT | Winter Storm Watch | HNX | 13 hr | |
| Apr 30, 3:18 PM PDT | Winter Storm Watch | STO | 13 hr | |
| Nov 18, 12:44 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 23 hr |
| Nov 18, 1:30 PM PST | Winter Storm Watch | HNX | 23 hr | |
| Nov 18, 3:00 PM PST | Winter Storm Watch | STO | 25 hr | |
| Nov 18, 3:17 PM PST | Winter Storm Watch | MFR | Siskiyou | 23 hr |
| Nov 19, 4:10 AM PST | Winter Storm Watch | EKA | 10 hr | |
| Dec 5, 3:30 AM PST | Winter Storm Watch | STO | 32 hr | |
| Dec 5, 4:21 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 24 hr |
| Dec 5, 1:05 PM PST | Winter Storm Watch | SGX | Riverside, San Bernardino | 23 hr |
| Dec 5, 2:29 PM PST | Winter Storm Watch | LOX | 24 hr | |
| Dec 5, 2:30 PM PST | Winter Storm Watch | HNX | 20 hr | |
| Dec 5, 3:43 PM PST | Winter Storm Watch | VEF | Inyo, San Bernardino | 23 hr |
| Dec 10, 3:00 AM PST | Winter Storm Watch | HNX | 50 hr | |
| Dec 10, 4:05 AM PST | Winter Storm Watch | STO | 48 hr | |
| Dec 10, 4:31 AM PST | Winter Storm Watch | VEF | Inyo | 35 hr |
| Dec 10, 4:46 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 34 hr |
| Dec 11, 2:07 PM PST | Winter Storm Watch | LOX | 14 hr | |
| Dec 13, 2:16 PM PST | Winter Storm Watch | MFR | Siskiyou | 14 hr |
| Dec 27, 2:33 PM PST | Winter Storm Watch | MFR | Siskiyou | 25 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 archive20082010
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.