Alert archive / California / Frost Advisories

Frost Advisories in California, 2017

78 frost advisories in 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 frost advisories reaches back to 2005.

Frost Advisories by county

Each county as a circle sized by its count in 2017. Tap one for its archive.

Frost Advisories: 78
Busiest month: October17 frost advisories
Busiest day: January 24, 20173 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 23, 10:32 PM PST	Frost Advisory	SGX	Riverside, San Bernardino	9 hr
Jan 23, 10:32 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	33 hr
Jan 24, 3:50 PM PST	Frost Advisory	LOX	Los Angeles	17 hr
Jan 25, 12:31 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	19 hr
Jan 25, 2:10 PM PST	Frost Advisory	LOX	Los Angeles	19 hr
Jan 26, 2:48 PM PST	Frost Advisory	LOX		17 hr
Jan 27, 12:55 PM PST	Frost Advisory	LOX		20 hr
Jan 28, 3:02 PM PST	Frost Advisory	LOX		18 hr
Feb 23, 9:07 PM PST	Frost Advisory	LOX		12 hr
Feb 24, 12:39 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	19 hr
Feb 27, 2:01 PM PST	Frost Advisory	EKA	Mendocino	18 hr
Feb 28, 2:11 AM PST	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	30 hr
Mar 1, 1:44 AM PST	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	30 hr
Mar 22, 3:47 PM PDT	Frost Advisory	EKA	Mendocino	16 hr
Mar 27, 3:43 PM PDT	Frost Advisory	EKA	Mendocino	17 hr
Mar 30, 3:47 AM PDT	Frost Advisory	EKA	Mendocino	28 hr
Apr 7, 1:08 PM PDT	Frost Advisory	MTR	Marin, Napa, Sonoma	43 hr
Apr 8, 2:50 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	18 hr
Apr 13, 3:21 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	16 hr
Apr 14, 7:11 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino, Trinity	13 hr
Apr 28, 5:12 AM PDT	Frost Advisory	EKA	Trinity	3 hr
May 12, 2:30 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	18 hr
May 13, 1:53 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	18 hr
May 16, 2:54 PM PDT	Frost Advisory	EKA	Trinity	13 hr
May 16, 9:28 PM PDT	Frost Advisory	MFR	Siskiyou	11 hr
Jun 4, 9:40 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	21 hr
Jun 12, 2:32 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	29 hr
Jun 13, 2:33 PM PDT	Frost Advisory	MFR	Modoc, Siskiyou	17 hr
Sep 14, 4:04 PM PDT	Frost Advisory	MFR	Modoc, Siskiyou	16 hr
Sep 15, 9:57 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	22 hr
Sep 20, 3:12 AM PDT	Frost Advisory	EKA	Humboldt, Mendocino, Trinity	29 hr
Sep 20, 4:32 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	28 hr
Sep 20, 2:32 PM PDT	Frost Advisory	MFR	Modoc, Siskiyou	42 hr
Sep 21, 12:19 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	20 hr
Sep 21, 12:51 PM PDT	Frost Advisory	MFR	Modoc, Siskiyou	44 hr
Sep 22, 3:08 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	17 hr
Sep 24, 4:22 AM PDT	Frost Advisory	EKA	Trinity	5 hr
Oct 1, 3:22 PM PDT	Frost Advisory	EKA	Humboldt, Trinity	17 hr
Oct 2, 1:56 PM PDT	Frost Advisory	MFR	Siskiyou	19 hr
Oct 3, 2:02 PM PDT	Frost Advisory	MFR	Siskiyou	19 hr
Oct 4, 12:24 AM PDT	Frost Advisory	EKA	Trinity	9 hr
Oct 4, 2:21 PM PDT	Frost Advisory	MFR	Siskiyou	19 hr
Oct 4, 2:46 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	18 hr
Oct 5, 6:43 PM PDT	Frost Advisory	EKA	Mendocino, Trinity	13 hr
Oct 8, 2:20 PM PDT	Frost Advisory	MFR	Siskiyou	19 hr
Oct 11, 2:35 AM PDT	Frost Advisory	EKA	Mendocino, Trinity	13 hr
Oct 11, 9:44 AM PDT	Frost Advisory	MFR	Siskiyou	23 hr
Oct 11, 3:35 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	18 hr
Oct 12, 2:54 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	19 hr
Oct 13, 12:55 PM PDT	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	20 hr
Oct 13, 8:25 PM PDT	Frost Advisory	LOX		13 hr
Oct 14, 3:53 PM PDT	Frost Advisory	EKA	Mendocino	17 hr
Oct 14, 8:52 PM PDT	Frost Advisory	LOX		6 hr
Oct 20, 2:29 PM PDT	Frost Advisory	EKA	Mendocino	18 hr
Nov 4, 4:50 PM PDT	Frost Advisory	EKA	Humboldt, Mendocino	18 hr
Nov 6, 1:45 AM PST	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	30 hr
Nov 17, 3:06 AM PST	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	30 hr
Nov 17, 1:31 PM PST	Frost Advisory	LOX	Santa Barbara	18 hr
Nov 18, 8:34 AM PST	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	25 hr
Nov 18, 12:42 PM PST	Frost Advisory	LOX	Santa Barbara	20 hr
Nov 18, 1:22 PM PST	Frost Advisory	SGX	San Bernardino	19 hr
Nov 27, 2:20 AM PST	Frost Advisory	EKA	Humboldt, Mendocino	25 hr
Nov 27, 12:26 PM PST	Frost Advisory	SGX	San Bernardino	21 hr
Nov 28, 2:33 PM PST	Frost Advisory	EKA	Humboldt	14 hr
Nov 29, 2:22 PM PST	Frost Advisory	EKA	Humboldt	19 hr
Dec 3, 2:32 AM PST	Frost Advisory	EKA	Del Norte, Humboldt, Mendocino	31 hr
Dec 3, 2:36 PM PST	Frost Advisory	LOX		17 hr
Dec 4, 10:13 AM PST	Frost Advisory	EKA	Del Norte, Humboldt	23 hr
Dec 5, 12:29 PM PST	Frost Advisory	STO		22 hr
Dec 6, 2:24 PM PST	Frost Advisory	LOX		19 hr
Dec 12, 9:06 PM PST	Frost Advisory	LOX		12 hr
Dec 17, 7:49 PM PST	Frost Advisory	LOX		13 hr
Dec 21, 2:09 AM PST	Frost Advisory	MTR	Marin, Monterey, San Mateo, Santa Cruz, Sonoma	31 hr
Dec 21, 1:40 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	19 hr
Dec 21, 1:51 PM PST	Frost Advisory	LOX		19 hr
Dec 22, 12:20 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	21 hr
Dec 22, 1:10 PM PST	Frost Advisory	LOX		20 hr
Dec 23, 4:57 PM PST	Frost Advisory	LOX		10 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 2016 2018

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.