Alert archive / California / Frost Advisories
Frost Advisories in California, 2016
55 frost advisories in 2016. 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 frost advisories reaches back to 2005.
Frost Advisories by county
Each county as a circle sized by its count in 2016. Tap one for its archive.
- Frost Advisories
- 55
- Busiest month
- December15 frost advisories
- Busiest day
- November 17, 20164 frost advisories
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 8, 2:52 PM PST | Frost Advisory | LOX | 18 hr | |
| Jan 12, 12:46 PM PST | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 19 hr |
| Jan 13, 9:59 PM PST | Frost Advisory | LOX | 11 hr | |
| Jan 24, 1:49 PM PST | Frost Advisory | LOX | 19 hr | |
| Feb 1, 1:09 PM PST | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 20 hr |
| Feb 1, 9:07 PM PST | Frost Advisory | LOX | 12 hr | |
| Feb 2, 12:53 PM PST | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 20 hr |
| Mar 7, 3:39 PM PST | Frost Advisory | EKA | 16 hr | |
| Mar 14, 2:26 PM PDT | Frost Advisory | EKA | 19 hr | |
| Mar 15, 3:05 PM PDT | Frost Advisory | EKA | 18 hr | |
| Mar 22, 2:25 PM PDT | Frost Advisory | EKA | 19 hr | |
| Mar 28, 3:22 AM PDT | Frost Advisory | EKA | 30 hr | |
| Mar 29, 1:45 PM PDT | Frost Advisory | EKA | 19 hr | |
| Apr 15, 2:33 PM PDT | Frost Advisory | EKA | 17 hr | |
| Apr 24, 3:16 AM PDT | Frost Advisory | EKA | 30 hr | |
| Apr 25, 3:38 AM PDT | Frost Advisory | EKA | 29 hr | |
| Jun 10, 3:27 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 30 hr |
| Jun 18, 2:46 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 30 hr |
| Jul 10, 3:21 AM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 28 hr |
| Sep 3, 2:30 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 18 hr |
| Sep 3, 2:30 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 42 hr |
| Sep 5, 1:41 PM PDT | Frost Advisory | MFR | Modoc, Siskiyou | 18 hr |
| Sep 13, 3:50 AM PDT | Frost Advisory | EKA | Mendocino, Trinity | 28 hr |
| Sep 21, 2:20 PM PDT | Frost Advisory | EKA | Mendocino, Trinity | 16 hr |
| Oct 18, 10:53 PM PDT | Frost Advisory | EKA | Trinity | 9 hr |
| Oct 19, 5:48 AM PDT | Frost Advisory | MFR | Siskiyou | 3 hr |
| Oct 23, 5:12 AM PDT | Frost Advisory | EKA | Trinity | 3 hr |
| Nov 1, 9:57 PM PDT | Frost Advisory | EKA | Trinity | 10 hr |
| Nov 15, 7:28 PM PST | Frost Advisory | LOX | Santa Barbara | 38 hr |
| Nov 16, 3:32 PM PST | Frost Advisory | MTR | Marin, Monterey, Napa, Sonoma | 16 hr |
| Nov 16, 9:50 PM PST | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 11 hr |
| Nov 17, 9:38 AM PST | Frost Advisory | LOX | 23 hr | |
| Nov 17, 1:04 PM PST | Frost Advisory | SGX | San Bernardino | 20 hr |
| Nov 17, 1:24 PM PST | Frost Advisory | MTR | Marin, Napa, Sonoma | 19 hr |
| Nov 23, 3:58 AM PST | Frost Advisory | SGX | San Bernardino | 28 hr |
| Nov 23, 9:36 PM PST | Frost Advisory | EKA | Mendocino | 11 hr |
| Nov 24, 1:50 PM PST | Frost Advisory | LOX | 7 hr | |
| Nov 27, 1:43 PM PST | Frost Advisory | LOX | 18 hr | |
| Nov 28, 2:13 PM PST | Frost Advisory | EKA | Humboldt | 19 hr |
| Nov 30, 2:45 PM PST | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 18 hr |
| Nov 30, 8:42 PM PST | Frost Advisory | LOX | 9 hr | |
| Dec 1, 2:10 PM PST | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 19 hr |
| Dec 6, 4:26 AM PST | Frost Advisory | EKA | Del Norte, Humboldt, Mendocino | 30 hr |
| Dec 16, 1:58 AM PST | Frost Advisory | EKA | Humboldt, Mendocino | 31 hr |
| Dec 16, 7:14 AM PST | Frost Advisory | MTR | Alameda, Contra Costa, Monterey, San Mateo, Santa Clara, Santa Cruz | 25 hr |
| Dec 16, 7:14 AM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, City and County of San Francisco, San Mateo and 3 more | 49 hr |
| Dec 16, 11:47 AM PST | Frost Advisory | LOX | 20 hr | |
| Dec 17, 3:08 AM PST | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 29 hr |
| Dec 17, 2:03 PM PST | Frost Advisory | LOX | Los Angeles | 19 hr |
| Dec 18, 2:27 PM PST | Frost Advisory | LOX | Los Angeles | 19 hr |
| Dec 18, 7:15 PM PST | Frost Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, San Mateo, Santa Clara and 2 more | 13 hr |
| Dec 19, 1:02 PM PST | Frost Advisory | LOX | 20 hr | |
| Dec 24, 3:02 PM PST | Frost Advisory | LOX | Los Angeles | 18 hr |
| Dec 24, 7:03 PM PST | Frost Advisory | SGX | Riverside, San Bernardino, San Diego | 13 hr |
| Dec 26, 2:29 PM PST | Frost Advisory | LOX | 19 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mendocino County8
- San Bernardino County7
- Siskiyou County7
- Modoc County6
- Humboldt County6
- Riverside County5
- San Diego County5
- Trinity County5
- Marin County4
- Monterey County4
- Sonoma County4
- Del Norte County4
- Alameda County3
- Contra Costa County3
- San Mateo County3
- Santa Clara County3
- Santa Cruz County3
- Los Angeles County3
- Napa County2
- Santa Barbara County1
- City and County of San Francisco1
The busiest days
Days with the most alerts issued, by UTC date.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20152017
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.