Alert archive / California / Winter Storm Warnings / 2019
Winter Storm Warnings in California, December 2019
9 winter storm warnings in December 2019. 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 December 2019. Tap one for its archive.
- Winter Storm Warnings
- 9
- Busiest day
- December 5, 20194 winter storm warnings
Over time
By day
Days in UTC, the clock the archive keeps.
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 5, 1:17 PM PST | Winter Storm Warning | MFR | Siskiyou | 49 hr |
| Dec 5, 2:00 PM PST | Winter Storm Warning | STO | 70 hr | |
| Dec 5, 2:01 PM PST | Winter Storm Warning | HNX | 71 hr | |
| Dec 5, 2:45 PM PST | Winter Storm Warning | REV | Alpine, El Dorado, Lassen, Mono, Nevada, Placer and 2 more | 67 hr |
| Dec 21, 4:14 AM PST | Winter Storm Warning | MFR | Siskiyou | 23 hr |
| Dec 24, 4:12 AM PST | Winter Storm Warning | HNX | 64 hr | |
| Dec 25, 2:34 AM PST | Winter Storm Warning | LOX | 43 hr | |
| Dec 25, 3:03 AM PST | Winter Storm Warning | PSR | San Bernardino | 50 hr |
| Dec 25, 3:36 AM PST | Winter Storm Warning | SGX | Riverside, San Bernardino, San Diego | 47 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20182020
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.