Alert archive / California / Frost Advisories

Frost Advisories in California, 2009

70 frost advisories in 2009. 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 2009. Tap one for its archive.

Frost Advisories: 70
Busiest month: April15 frost advisories
Busiest day: April 15, 20095 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 3, 11:51 PM PST	Frost Advisory	MTR	Alameda, Contra Costa, San Mateo, Santa Clara	8 hr
Feb 9, 5:58 PM PST	Frost Advisory	HNX		14 hr
Feb 10, 1:15 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	20 hr
Mar 4, 1:49 PM PST	Frost Advisory	EKA		19 hr
Mar 6, 2:40 PM PST	Frost Advisory	EKA		18 hr
Mar 8, 1:30 PM PDT	Frost Advisory	EKA		20 hr
Mar 9, 1:41 PM PDT	Frost Advisory	HNX		18 hr
Mar 9, 2:06 PM PDT	Frost Advisory	STO		19 hr
Mar 10, 2:41 PM PDT	Frost Advisory	EKA		19 hr
Mar 11, 3:04 PM PDT	Frost Advisory	EKA		18 hr
Mar 22, 1:43 PM PDT	Frost Advisory	EKA		19 hr
Mar 29, 2:25 PM PDT	Frost Advisory	EKA		17 hr
Apr 2, 3:51 AM PDT	Frost Advisory	EKA		28 hr
Apr 3, 2:29 AM PDT	Frost Advisory	EKA		11 hr
Apr 3, 1:56 PM PDT	Frost Advisory	HNX		19 hr
Apr 3, 3:12 PM PDT	Frost Advisory	LOX	Santa Barbara	18 hr
Apr 4, 1:27 PM PDT	Frost Advisory	EKA		19 hr
Apr 5, 1:39 PM PDT	Frost Advisory	EKA		19 hr
Apr 5, 2:54 PM PDT	Frost Advisory	LOX	Santa Barbara	18 hr
Apr 13, 4:10 AM PDT	Frost Advisory	EKA		22 hr
Apr 14, 3:01 PM PDT	Frost Advisory	EKA		11 hr
Apr 14, 7:03 PM PDT	Frost Advisory	MTR	Marin, Napa, Sonoma	13 hr
Apr 14, 9:00 PM PDT	Frost Advisory	LOX	Santa Barbara	11 hr
Apr 15, 2:28 PM PDT	Frost Advisory	LOX	Santa Barbara	19 hr
Apr 15, 2:38 PM PDT	Frost Advisory	EKA		18 hr
Apr 15, 2:49 PM PDT	Frost Advisory	HNX		16 hr
Apr 24, 3:15 PM PDT	Frost Advisory	EKA		12 hr
Jun 21, 8:44 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	23 hr
Aug 7, 2:09 PM PDT	Frost Advisory	MFR	Modoc, Siskiyou	6 hr
Aug 14, 2:40 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	29 hr
Sep 6, 3:47 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	28 hr
Sep 7, 3:50 AM PDT	Frost Advisory	MFR	Modoc, Siskiyou	28 hr
Sep 29, 2:31 AM PDT	Frost Advisory	MFR	Siskiyou	30 hr
Sep 29, 3:36 AM PDT	Frost Advisory	EKA		29 hr
Sep 30, 2:18 AM PDT	Frost Advisory	MFR	Siskiyou	31 hr
Oct 2, 11:41 AM PDT	Frost Advisory	EKA		22 hr
Oct 3, 12:29 PM PDT	Frost Advisory	EKA		22 hr
Oct 4, 1:48 PM PDT	Frost Advisory	MTR	Monterey	13 hr
Oct 4, 2:37 PM PDT	Frost Advisory	EKA		18 hr
Oct 5, 2:28 AM PDT	Frost Advisory	MFR	Siskiyou	30 hr
Oct 5, 2:20 PM PDT	Frost Advisory	EKA		18 hr
Oct 6, 3:08 AM PDT	Frost Advisory	MFR	Siskiyou	29 hr
Oct 28, 1:49 AM PDT	Frost Advisory	SGX	San Bernardino	30 hr
Oct 28, 2:17 AM PDT	Frost Advisory	MTR	Monterey	30 hr
Oct 28, 10:09 AM PDT	Frost Advisory	HNX		23 hr
Oct 28, 2:36 PM PDT	Frost Advisory	LOX		17 hr
Oct 29, 2:36 PM PDT	Frost Advisory	LOX		17 hr
Oct 29, 7:26 PM PDT	Frost Advisory	SGX	San Bernardino	13 hr
Nov 7, 10:52 AM PST	Frost Advisory	STO		14 hr
Nov 13, 4:48 AM PST	Frost Advisory	LOX		4 hr
Nov 13, 1:55 PM PST	Frost Advisory	LOX	Santa Barbara	19 hr
Nov 13, 2:22 PM PST	Frost Advisory	EKA		18 hr
Nov 15, 3:42 AM PST	Frost Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 1 more	28 hr
Nov 15, 2:50 PM PST	Frost Advisory	STO		18 hr
Nov 19, 3:29 AM PST	Frost Advisory	EKA		5 hr
Nov 23, 2:23 AM PST	Frost Advisory	EKA		7 hr
Nov 29, 3:41 AM PST	Frost Advisory	EKA		5 hr
Nov 29, 9:56 AM PST	Frost Advisory	HNX		22 hr
Dec 2, 1:25 PM PST	Frost Advisory	HNX		19 hr
Dec 5, 9:22 AM PST	Frost Advisory	STO		24 hr
Dec 7, 4:09 AM PST	Frost Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, San Mateo, Santa Clara and 2 more	29 hr
Dec 7, 1:58 PM PST	Frost Advisory	LOX	Los Angeles	19 hr
Dec 8, 9:47 AM PST	Frost Advisory	MTR	Alameda, Contra Costa, Marin, Monterey, San Mateo, Santa Clara and 2 more	23 hr
Dec 8, 1:14 PM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	20 hr
Dec 8, 2:22 PM PST	Frost Advisory	LOX	Los Angeles	18 hr
Dec 22, 1:55 PM PST	Frost Advisory	LOX		19 hr
Dec 23, 1:45 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	7 hr
Dec 23, 1:45 AM PST	Frost Advisory	SGX	Riverside, San Bernardino, San Diego	31 hr
Dec 23, 11:39 AM PST	Frost Advisory	LOX		21 hr
Dec 24, 2:40 PM PST	Frost Advisory	LOX		18 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 2008 2010

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.