Alert archive / California / Winter Storm Warnings
Winter Storm Warnings in California, 2009
53 winter storm warnings 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 warnings reaches back to 2005.
Winter Storm Warnings by county
Each county as a circle sized by its count in 2009. Tap one for its archive.
- Winter Storm Warnings
- 53
- Busiest month
- February22 winter storm warnings
- Busiest day
- December 6, 20096 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 |
|---|---|---|---|---|
| Feb 5, 1:16 PM PST | Winter Storm Warning | HNX | 40 hr | |
| Feb 5, 3:54 PM PST | Winter Storm Warning | VEF | Inyo | 60 hr |
| Feb 6, 3:24 AM PST | Winter Storm Warning | LOX | 48 hr | |
| Feb 8, 3:31 AM PST | Winter Storm Warning | HNX | 16 hr | |
| Feb 9, 10:45 AM PST | Winter Storm Warning | VEF | San Bernardino | 13 hr |
| Feb 9, 2:48 PM PST | Winter Storm Warning | SGX | San Bernardino | 4 hr |
| Feb 10, 11:00 AM PST | Winter Storm Warning | STO | 41 hr | |
| Feb 12, 2:23 AM PST | Winter Storm Warning | MFR | Siskiyou | 32 hr |
| Feb 12, 4:12 AM PST | Winter Storm Warning | EKA | 48 hr | |
| Feb 12, 2:16 PM PST | Winter Storm Warning | HNX | 26 hr | |
| Feb 13, 3:31 AM PST | Winter Storm Warning | LOX | 16 hr | |
| Feb 13, 3:01 PM PST | Winter Storm Warning | MFR | Siskiyou | 48 hr |
| Feb 14, 3:44 AM PST | Winter Storm Warning | EKA | 29 hr | |
| Feb 14, 2:46 PM PST | Winter Storm Warning | STO | 4 days | |
| Feb 14, 3:39 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 3 days |
| Feb 15, 2:27 AM PST | Winter Storm Warning | HNX | 56 hr | |
| Feb 15, 4:43 AM PST | Winter Storm Warning | LOX | 53 hr | |
| Feb 15, 1:31 PM PST | Winter Storm Warning | SGX | Riverside, San Bernardino | 34 hr |
| Feb 15, 3:46 PM PST | Winter Storm Warning | VEF | Inyo | 32 hr |
| Feb 21, 3:33 AM PST | Winter Storm Warning | MFR | Siskiyou | 30 hr |
| Feb 21, 10:41 AM PST | Winter Storm Warning | STO | 59 hr | |
| Feb 21, 3:04 PM PST | Winter Storm Warning | HNX | 45 hr | |
| Mar 1, 3:14 PM PST | Winter Storm Warning | STO | 67 hr | |
| Mar 2, 4:06 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 54 hr |
| Mar 2, 3:02 PM PST | Winter Storm Warning | MFR | Siskiyou | 13 hr |
| Mar 3, 3:11 AM PST | Winter Storm Warning | HNX | 30 hr | |
| Mar 3, 11:03 PM PST | Winter Storm Warning | MFR | Siskiyou | 5 hr |
| Mar 14, 3:30 AM PDT | Winter Storm Warning | MFR | Siskiyou | 49 hr |
| Mar 20, 1:26 PM PDT | Winter Storm Warning | HNX | 47 hr | |
| Mar 20, 3:19 PM PDT | Winter Storm Warning | STO | 49 hr | |
| Mar 21, 4:12 AM PDT | Winter Storm Warning | REV | Alpine, El Dorado, Mono, Nevada, Placer | 31 hr |
| May 1, 3:08 AM PDT | Winter Storm Warning | HNX | 24 hr | |
| May 1, 9:54 AM PDT | Winter Storm Warning | STO | 18 hr | |
| Oct 13, 3:20 PM PDT | Winter Storm Warning | REV | Mono | 12 hr |
| Nov 19, 11:41 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 31 hr |
| Nov 19, 12:50 PM PST | Winter Storm Warning | HNX | 31 hr | |
| Nov 19, 2:21 PM PST | Winter Storm Warning | MFR | Siskiyou | 35 hr |
| Nov 19, 3:39 PM PST | Winter Storm Warning | STO | 30 hr | |
| Dec 6, 4:09 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 39 hr |
| Dec 6, 10:20 AM PST | Winter Storm Warning | HNX | 38 hr | |
| Dec 6, 11:51 AM PST | Winter Storm Warning | STO | 30 hr | |
| Dec 6, 12:27 PM PST | Winter Storm Warning | SGX | Riverside, San Bernardino | 39 hr |
| Dec 6, 2:05 PM PST | Winter Storm Warning | LOX | 43 hr | |
| Dec 6, 2:26 PM PST | Winter Storm Warning | VEF | Inyo, San Bernardino | 37 hr |
| Dec 11, 4:26 AM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 54 hr |
| Dec 11, 3:33 PM PST | Winter Storm Warning | HNX | 48 hr | |
| Dec 11, 3:53 PM PST | Winter Storm Warning | VEF | Inyo | 42 hr |
| Dec 12, 3:25 AM PST | Winter Storm Warning | STO | 41 hr | |
| Dec 12, 3:59 AM PST | Winter Storm Warning | LOX | 29 hr | |
| Dec 14, 3:51 AM PST | Winter Storm Warning | MFR | Siskiyou | 35 hr |
| Dec 14, 2:37 PM PST | Winter Storm Warning | STO | 25 hr | |
| Dec 29, 2:46 AM PST | Winter Storm Warning | MFR | Siskiyou | 18 hr |
| Dec 30, 4:00 AM PST | Winter Storm Warning | MFR | Siskiyou | 32 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.