Alert archive / California / Frost Advisories

Frost Advisories in California, 2019

76 frost advisories in 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 frost advisories reaches back to 2005.

Frost Advisories by county

Each county as a circle sized by its count in 2019. Tap one for its archive.

Frost Advisories: 76
Busiest month: October21 frost advisories
Busiest day: February 6, 20195 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 1, 10:06 AM PST	Frost Advisory	LOX	Los Angeles	23 hr
Jan 3, 2:54 AM PST	Frost Advisory	LOX		6 hr
Jan 22, 8:50 PM PST	Frost Advisory	LOX		12 hr
Feb 6, 2:40 AM PST	Frost Advisory	LOX		6 hr
Feb 6, 3:09 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	6 hr
Feb 6, 3:09 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	11 hr
Feb 6, 2:19 PM PST	Frost Advisory	LOX	Los Angeles	19 hr
Feb 6, 2:28 PM PST	Frost Advisory	SGX	Orange, Riverside, San Diego	19 hr
Feb 10, 8:04 PM PST	Frost Advisory	LOX		12 hr
Feb 11, 5:12 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	3 hr
Feb 11, 1:59 PM PST	Frost Advisory	LOX	Los Angeles	18 hr
Feb 17, 7:39 PM PST	Frost Advisory	STO		13 hr
Feb 18, 2:54 AM PST	Frost Advisory	SGX	Riverside, San Bernardino	5 hr
Feb 18, 2:54 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	30 hr
Feb 18, 2:54 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	54 hr
Feb 18, 9:21 AM PST	Frost Advisory	STO		24 hr
Feb 19, 3:44 AM PST	Frost Advisory	LOX		4 hr
Feb 19, 3:09 PM PST	Frost Advisory	LOX	Los Angeles	17 hr
Feb 21, 1:45 PM PST	Frost Advisory	SGX	Orange	19 hr
Feb 22, 5:46 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	15 hr
Feb 22, 6:03 PM PST	Frost Advisory	LOX	Los Angeles	14 hr
Feb 28, 3:56 AM PST	Frost Advisory	EKA	Mendocino	28 hr
Mar 7, 3:17 AM PST	Frost Advisory	EKA	Mendocino	29 hr
Mar 10, 2:35 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	18 hr
Mar 11, 3:01 PM PDT	Frost Advisory	EKA	Mendocino	17 hr
Mar 12, 2:56 AM PDT	Frost Advisory	EKA	Humboldt, Mendocino	30 hr
Mar 13, 2:23 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	19 hr
Mar 14, 2:12 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	19 hr
Mar 23, 2:34 PM PDT	Frost Advisory	EKA	Mendocino	18 hr
Mar 29, 1:45 PM PDT	Frost Advisory	EKA	Mendocino	18 hr
Apr 16, 2:22 PM PDT	Frost Advisory	EKA	Trinity	19 hr
Apr 29, 2:15 PM PDT	Frost Advisory	EKA	Humboldt, Trinity	18 hr
Apr 30, 2:37 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino, Trinity	18 hr
May 1, 8:45 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Trinity	12 hr
May 2, 1:57 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Trinity	18 hr
May 19, 3:06 AM PDT	Frost Advisory	EKA	Mendocino, Trinity	24 hr
Jun 6, 3:22 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	53 hr
Jun 6, 9:09 PM PDT	Frost Advisory	EKA	Humboldt, Trinity	12 hr
Jun 7, 6:32 PM PDT	Frost Advisory	EKA	Humboldt, Trinity	13 hr
Jun 8, 8:04 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	23 hr
Sep 27, 1:35 PM PDT	Frost Advisory	EKA	Trinity	18 hr
Sep 28, 3:14 AM PDT	Frost Advisory	EKA	Humboldt, Mendocino, Trinity	29 hr
Sep 29, 2:56 PM PDT	Frost Advisory	MFR	Siskiyou	18 hr
Sep 29, 2:56 PM PDT	Frost Advisory	MFR	Siskiyou	42 hr
Sep 30, 2:57 AM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	29 hr
Sep 30, 2:45 PM PDT	Frost Advisory	MFR	Siskiyou	42 hr
Oct 1, 8:30 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino, Trinity	13 hr
Oct 2, 2:08 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	13 hr
Oct 3, 2:15 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino, Trinity	19 hr
Oct 8, 1:49 PM PDT	Frost Advisory	MFR	Siskiyou	19 hr
Oct 8, 2:34 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Trinity	18 hr
Oct 9, 9:55 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	11 hr
Oct 10, 1:10 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	20 hr
Oct 11, 1:05 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	21 hr
Oct 12, 1:45 PM PDT	Frost Advisory	LOX		18 hr
Oct 12, 2:37 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino, Trinity	18 hr
Oct 13, 2:40 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	18 hr
Oct 27, 11:41 AM PDT	Frost Advisory	SGX	San Bernardino	21 hr
Oct 27, 6:25 PM PDT	Frost Advisory	EKA	Del Norte	8 hr
Oct 28, 2:16 AM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	7 hr
Oct 28, 1:57 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	19 hr
Oct 28, 2:14 PM PDT	Frost Advisory	LOX		18 hr
Oct 29, 3:07 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	18 hr
Oct 30, 2:21 AM PDT	Frost Advisory	MTR	Marin, Monterey, Napa, San Benito, Sonoma	12 hr
Oct 30, 2:04 PM PDT	Frost Advisory	LOX		19 hr
Oct 30, 3:13 PM PDT	Frost Advisory	EKA	Humboldt	18 hr
Oct 31, 3:16 PM PDT	Frost Advisory	LOX		18 hr
Oct 31, 11:19 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt	9 hr
Nov 1, 1:12 PM PDT	Frost Advisory	MTR	Marin, Napa, Sonoma	20 hr
Nov 1, 3:09 PM PDT	Frost Advisory	EKA	Humboldt	18 hr
Nov 28, 2:51 AM PST	Frost Advisory	MTR	Alameda, Contra Costa, Marin, Santa Clara, Sonoma	30 hr
Nov 29, 2:32 PM PST	Frost Advisory	LOX		17 hr
Dec 18, 8:55 PM PST	Frost Advisory	LOX	Los Angeles	12 hr
Dec 19, 8:43 PM PST	Frost Advisory	LOX		12 hr
Dec 26, 2:09 PM PST	Frost Advisory	LOX		18 hr
Dec 27, 1:31 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.

The busiest days

Days with the most alerts issued, by UTC date.

Nearby

Alerts in force now Tornadoes on record The radar archive 2018 2020

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.