Cold Weather Advisories in California
52 cold weather advisories since 1986. 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 cold weather advisories reaches back to 2005.
Cold Weather Advisories by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Cold Weather Advisories
- 52
- Busiest year
- 202525 cold weather advisories
- Average year
- 17over 3 years on file
Over time
By year
Before late 2005 the archive holds only tornado, severe thunderstorm, flash flood and marine warnings, and from 1997 SPC's watches, so the jump that year is the archive widening, not the weather.
By month of the year
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Mendocino County25
- Humboldt County17
- Marin County12
- Monterey County12
- Sonoma County12
- Del Norte County11
- Napa County11
- San Benito County11
- Alameda County10
- Contra Costa County10
- Santa Clara County8
- Trinity County6
- Siskiyou County5
- Modoc County4
- San Mateo County4
- Santa Cruz County4
- Fresno County3
- Madera County3
- Mariposa County3
- Tulare County3
- Tuolumne County3
- Kern County2
- Lake County2
The latest cold weather advisories
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 12:18 PM PDT | Cold Weather Advisory | EKA | Humboldt | 20 hr |
| Feb 20, 12:19 PM PST | Cold Weather Advisory | STO | 22 hr | |
| Feb 20, 11:49 AM PST | Cold Weather Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, Napa, San Benito and 2 more | 21 hr |
| Feb 19, 1:28 PM PST | Cold Weather Advisory | MFR | Siskiyou | 20 hr |
| Feb 19, 12:16 PM PST | Cold Weather Advisory | STO | 21 hr | |
| Feb 19, 11:45 AM PST | Cold Weather Advisory | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 21 hr |
| Feb 19, 4:14 AM PST | Cold Weather Advisory | HNX | Fresno, Kern, Madera, Mariposa, Tulare, Tuolumne | 52 hr |
| Feb 18, 11:43 PM PST | Cold Weather Advisory | EKA | Humboldt, Mendocino | 9 hr |
| Feb 18, 11:25 PM PST | Cold Weather Advisory | MTR | Alameda, Contra Costa, Marin, Monterey, San Benito, San Mateo and 3 more | 34 hr |
| Feb 17, 8:27 PM PST | Cold Weather Advisory | EKA | Mendocino | 13 hr |
| Feb 17, 2:56 AM PST | Cold Weather Advisory | MTR | Marin, Monterey, Napa, San Mateo, Santa Clara, Santa Cruz and 1 more | 30 hr |
| Jan 25, 10:27 PM PST | Cold Weather Advisory | EKA | Mendocino | 11 hr |
Nearby
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.