Alert archive / California / Freeze Warnings / 2017
Freeze Warnings in California, December 2017
19 freeze warnings in December 2017. 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in December 2017. Tap one for its archive.
- Freeze Warnings
- 19
- Busiest day
- December 3, 20174 freeze 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 3, 3:38 AM PST | Freeze Warning | SGX | San Bernardino | 23 hr |
| Dec 3, 3:38 AM PST | Freeze Warning | SGX | San Bernardino | 23 hr |
| Dec 3, 1:54 PM PST | Freeze Warning | EKA | Del Norte, Humboldt | 20 hr |
| Dec 3, 2:36 PM PST | Freeze Warning | LOX | Santa Barbara | 17 hr |
| Dec 4, 3:27 AM PST | Freeze Warning | STO | 24 hr | |
| Dec 4, 3:40 AM PST | Freeze Warning | MTR | Monterey | 29 hr |
| Dec 4, 9:08 AM PST | Freeze Warning | VEF | Inyo, San Bernardino | 24 hr |
| Dec 4, 1:28 PM PST | Freeze Warning | LOX | Santa Barbara | 19 hr |
| Dec 5, 3:06 AM PST | Freeze Warning | MTR | Marin, Monterey, Napa, Sonoma | 30 hr |
| Dec 5, 1:17 PM PST | Freeze Warning | LOX | Santa Barbara | 20 hr |
| Dec 6, 5:02 PM PST | Freeze Warning | MTR | Monterey | 16 hr |
| Dec 17, 7:49 PM PST | Freeze Warning | LOX | 13 hr | |
| Dec 20, 11:17 AM PST | Freeze Warning | LOX | 22 hr | |
| Dec 20, 5:57 PM PST | Freeze Warning | MTR | Monterey | 15 hr |
| Dec 21, 2:09 AM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 31 hr |
| Dec 21, 1:51 PM PST | Freeze Warning | LOX | 19 hr | |
| Dec 22, 12:54 PM PST | Freeze Warning | MTR | Monterey | 20 hr |
| Dec 22, 1:10 PM PST | Freeze Warning | LOX | 20 hr | |
| Dec 23, 4:57 PM PST | Freeze Warning | LOX | 10 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 archive20162018
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.