Alert archive / California / Freeze Warnings
Freeze Warnings in California, 2018
53 freeze warnings 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 freeze warnings reaches back to 2005.
Freeze Warnings by county
Each county as a circle sized by its count in 2018. Tap one for its archive.
- Freeze Warnings
- 53
- Busiest month
- February14 freeze warnings
- Busiest day
- February 18, 20185 freeze 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 |
|---|---|---|---|---|
| Jan 20, 2:17 PM PST | Freeze Warning | LOX | 19 hr | |
| Feb 18, 3:28 AM PST | Freeze Warning | STO | 34 hr | |
| Feb 18, 4:47 AM PST | Freeze Warning | SGX | Riverside, San Bernardino | 52 hr |
| Feb 18, 9:13 AM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more | 48 hr |
| Feb 18, 3:05 PM PST | Freeze Warning | LOX | 42 hr | |
| Feb 18, 3:05 PM PST | Freeze Warning | LOX | Los Angeles | 66 hr |
| Feb 20, 4:46 AM PST | Freeze Warning | HNX | 27 hr | |
| Feb 20, 4:36 PM PST | Freeze Warning | SGX | Riverside, San Bernardino | 15 hr |
| Feb 21, 9:18 PM PST | Freeze Warning | LOX | 12 hr | |
| Feb 23, 4:28 AM PST | Freeze Warning | HNX | 28 hr | |
| Feb 23, 1:04 PM PST | Freeze Warning | SGX | Riverside, San Bernardino | 19 hr |
| Feb 23, 2:06 PM PST | Freeze Warning | LOX | 19 hr | |
| Feb 23, 6:54 PM PST | Freeze Warning | MTR | Monterey, San Benito | 14 hr |
| Feb 24, 1:38 PM PST | Freeze Warning | HNX | 18 hr | |
| Feb 27, 11:00 PM PST | Freeze Warning | LOX | Los Angeles | 10 hr |
| Mar 5, 1:18 AM PST | Freeze Warning | EKA | Mendocino | 8 hr |
| Mar 17, 2:10 PM PDT | Freeze Warning | EKA | Mendocino | 19 hr |
| Mar 18, 2:03 PM PDT | Freeze Warning | EKA | Mendocino | 19 hr |
| Mar 25, 3:43 AM PDT | Freeze Warning | EKA | Mendocino | 29 hr |
| Apr 16, 3:15 AM PDT | Freeze Warning | EKA | Mendocino | 31 hr |
| Apr 18, 3:26 AM PDT | Freeze Warning | EKA | Mendocino, Trinity | 30 hr |
| May 31, 1:31 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 18 hr |
| Jun 9, 2:47 AM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 29 hr |
| Sep 13, 2:19 AM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 31 hr |
| Sep 14, 2:39 PM PDT | Freeze Warning | MFR | Modoc, Siskiyou | 18 hr |
| Oct 12, 1:24 PM PDT | Freeze Warning | REV | Lassen, Modoc, Mono, Plumas, Sierra | 68 hr |
| Oct 13, 1:10 AM PDT | Freeze Warning | VEF | 56 hr | |
| Oct 14, 2:25 AM PDT | Freeze Warning | EKA | Trinity | 31 hr |
| Oct 14, 2:00 PM PDT | Freeze Warning | MFR | Siskiyou | 19 hr |
| Oct 15, 2:20 PM PDT | Freeze Warning | MFR | Siskiyou | 19 hr |
| Oct 29, 2:29 PM PDT | Freeze Warning | EKA | Mendocino | 19 hr |
| Oct 30, 2:40 PM PDT | Freeze Warning | EKA | Mendocino | 19 hr |
| Nov 6, 3:17 PM PST | Freeze Warning | EKA | Mendocino | 18 hr |
| Nov 7, 3:53 AM PST | Freeze Warning | EKA | Humboldt, Mendocino | 29 hr |
| Nov 8, 11:33 AM PST | Freeze Warning | LOX | 69 hr | |
| Nov 8, 2:12 PM PST | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Nov 9, 7:52 PM PST | Freeze Warning | EKA | Humboldt, Mendocino | 13 hr |
| Nov 10, 3:18 PM PST | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 18 hr |
| Nov 11, 9:17 PM PST | Freeze Warning | EKA | Humboldt, Mendocino | 12 hr |
| Dec 2, 11:29 AM PST | Freeze Warning | STO | 22 hr | |
| Dec 2, 11:42 AM PST | Freeze Warning | EKA | Del Norte, Humboldt, Mendocino | 21 hr |
| Dec 2, 4:50 PM PST | Freeze Warning | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, Sonoma | 11 hr |
| Dec 2, 8:14 PM PST | Freeze Warning | LOX | 9 hr | |
| Dec 27, 1:37 PM PST | Freeze Warning | PSR | San Bernardino | 42 hr |
| Dec 27, 1:37 PM PST | Freeze Warning | PSR | San Bernardino | 66 hr |
| Dec 27, 2:53 PM PST | Freeze Warning | LOX | 17 hr | |
| Dec 27, 10:45 PM PST | Freeze Warning | EKA | Humboldt, Mendocino | 10 hr |
| Dec 28, 3:44 AM PST | Freeze Warning | VEF | Inyo, San Bernardino | 50 hr |
| Dec 28, 12:35 PM PST | Freeze Warning | MTR | Monterey, San Benito | 20 hr |
| Dec 28, 12:42 PM PST | Freeze Warning | LOX | 19 hr | |
| Dec 29, 3:07 PM PST | Freeze Warning | LOX | 18 hr | |
| Dec 30, 1:39 PM PST | Freeze Warning | LOX | 19 hr | |
| Dec 31, 1:39 PM PST | Freeze Warning | SGX | San Bernardino | 18 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mendocino County16
- San Bernardino County7
- Humboldt County7
- Siskiyou County6
- Modoc County5
- Monterey County4
- Riverside County3
- San Benito County3
- Del Norte County3
- Alameda County2
- Contra Costa County2
- Marin County2
- Napa County2
- Sonoma County2
- Los Angeles County2
- Trinity County2
- San Mateo County1
- Santa Clara County1
- Santa Cruz County1
- Lassen County1
- Mono County1
- Plumas County1
- Sierra County1
- Inyo County1
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.