Alert archive / California / Winter Storm Watches
Winter Storm Watches in California, 2018
50 winter storm watches in 2018. 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 2018. Tap one for its archive.
- Winter Storm Watches
- 50
- Busiest month
- January14 winter storm watches
- Busiest day
- February 27, 20185 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 |
|---|---|---|---|---|
| Jan 6, 1:35 PM PST | Winter Storm Watch | HNX | 20 hr | |
| Jan 6, 2:34 PM PST | Winter Storm Watch | STO | 22 hr | |
| Jan 6, 2:44 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 23 hr |
| Jan 6, 2:48 PM PST | Winter Storm Watch | VEF | Inyo | 24 hr |
| Jan 6, 6:51 PM PST | Winter Storm Watch | LOX | 20 hr | |
| Jan 6, 7:00 PM PST | Winter Storm Watch | SGX | Riverside, San Bernardino, San Diego | 24 hr |
| Jan 15, 2:11 PM PST | Winter Storm Watch | STO | 48 hr | |
| Jan 15, 2:32 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Nevada, Placer, Plumas and 1 more | 48 hr |
| Jan 16, 2:19 PM PST | Winter Storm Watch | EKA | Del Norte, Humboldt, Trinity | 24 hr |
| Jan 19, 2:04 PM PST | Winter Storm Watch | EKA | Trinity | 24 hr |
| Jan 19, 2:35 PM PST | Winter Storm Watch | MFR | Siskiyou | 25 hr |
| Jan 19, 3:20 PM PST | Winter Storm Watch | STO | 22 hr | |
| Jan 22, 1:05 PM PST | Winter Storm Watch | STO | 23 hr | |
| Jan 26, 4:43 AM PST | Winter Storm Watch | MFR | Siskiyou | 10 hr |
| Feb 24, 12:59 PM PST | Winter Storm Watch | STO | 15 hr | |
| Feb 27, 3:00 AM PST | Winter Storm Watch | STO | 9 hr | |
| Feb 27, 3:10 AM PST | Winter Storm Watch | EKA | Del Norte, Humboldt, Mendocino, Trinity | 24 hr |
| Feb 27, 3:30 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Modoc, Mono, Nevada and 3 more | 23 hr |
| Feb 27, 3:56 AM PST | Winter Storm Watch | MFR | Siskiyou | 10 hr |
| Feb 27, 12:58 PM PST | Winter Storm Watch | HNX | 15 hr | |
| Feb 28, 3:33 AM PST | Winter Storm Watch | VEF | Inyo | 11 hr |
| Feb 28, 2:24 PM PST | Winter Storm Watch | SGX | San Bernardino | 23 hr |
| Feb 28, 3:01 PM PST | Winter Storm Watch | LOX | 12 hr | |
| Mar 11, 12:27 PM PDT | Winter Storm Watch | HNX | 16 hr | |
| Mar 11, 1:09 PM PDT | Winter Storm Watch | STO | 14 hr | |
| Mar 11, 2:34 PM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 12 hr |
| Mar 13, 3:28 AM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 47 hr |
| Mar 13, 2:00 PM PDT | Winter Storm Watch | STO | 25 hr | |
| Mar 13, 2:52 PM PDT | Winter Storm Watch | HNX | 22 hr | |
| Mar 19, 9:45 AM PDT | Winter Storm Watch | HNX | 17 hr | |
| Mar 19, 1:34 PM PDT | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 23 hr |
| Mar 19, 2:37 PM PDT | Winter Storm Watch | STO | 46 hr | |
| Mar 21, 12:49 PM PDT | Winter Storm Watch | STO | 39 hr | |
| Mar 21, 2:06 PM PDT | Winter Storm Watch | MFR | Siskiyou | 27 hr |
| Mar 21, 2:37 PM PDT | Winter Storm Watch | EKA | Del Norte, Humboldt, Mendocino, Trinity | 13 hr |
| Mar 23, 2:33 PM PDT | Winter Storm Watch | EKA | Del Norte, Humboldt, Mendocino, Trinity | 13 hr |
| Apr 14, 12:45 PM PDT | Winter Storm Watch | STO | 13 hr | |
| Nov 19, 11:14 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 29 hr |
| Nov 19, 12:14 PM PST | Winter Storm Watch | STO | 26 hr | |
| Nov 19, 2:31 PM PST | Winter Storm Watch | HNX | 24 hr | |
| Nov 20, 2:57 AM PST | Winter Storm Watch | VEF | Inyo | 24 hr |
| Nov 26, 9:14 AM PST | Winter Storm Watch | REV | Alpine, El Dorado, Mono, Nevada, Placer | 28 hr |
| Nov 26, 2:04 PM PST | Winter Storm Watch | HNX | 36 hr | |
| Nov 26, 2:18 PM PST | Winter Storm Watch | STO | 24 hr | |
| Nov 26, 2:24 PM PST | Winter Storm Watch | VEF | Inyo | 24 hr |
| Nov 28, 2:50 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 23 hr |
| Nov 29, 4:44 AM PST | Winter Storm Watch | MFR | Siskiyou | 11 hr |
| Dec 14, 11:36 AM PST | Winter Storm Watch | STO | 23 hr | |
| Dec 20, 2:53 PM PST | Winter Storm Watch | STO | 69 hr | |
| Dec 21, 2:17 PM PST | Winter Storm Watch | REV | Alpine, El Dorado, Lassen, Modoc, Nevada, Placer and 2 more | 36 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 archive20172019
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.