Alert archive / California / High Surf Advisories / 2021
High Surf Advisories in California, January 2021
17 high surf advisories in January 2021. 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 high surf advisories reaches back to 2005.
High Surf Advisories by county
Each county as a circle sized by its count in January 2021. Tap one for its archive.
- High Surf Advisories
- 17
- Busiest day
- January 11, 20213 high surf advisories
Over time
By day
Days in UTC, the clock the archive keeps.
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, 3:49 AM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 42 hr |
| Jan 1, 8:02 AM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 49 hr |
| Jan 3, 8:38 AM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 62 hr |
| Jan 3, 2:03 PM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 51 hr |
| Jan 6, 3:35 AM PST | High Surf Advisory | EKA | Del Norte, Humboldt | 14 hr |
| Jan 6, 9:03 AM PST | High Surf Advisory | LOX | 4 days | |
| Jan 7, 12:46 AM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 53 hr |
| Jan 7, 3:16 AM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 43 hr |
| Jan 11, 1:43 PM PST | High Surf Advisory | LOX | 3 days | |
| Jan 11, 2:17 PM PST | High Surf Advisory | EKA | Del Norte, Humboldt, Mendocino | 40 hr |
| Jan 11, 2:35 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 54 hr |
| Jan 14, 8:04 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 47 hr |
| Jan 15, 4:05 AM PST | High Surf Advisory | LOX | Los Angeles | 5 days |
| Jan 16, 1:39 AM PST | High Surf Advisory | SGX | San Diego | 4 days |
| Jan 16, 7:08 PM PST | High Surf Advisory | MTR | Marin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma | 47 hr |
| Jan 23, 9:28 PM PST | High Surf Advisory | LOX | Los Angeles | 6 days |
| Jan 24, 1:45 AM PST | High Surf Advisory | SGX | Orange, San Diego | 64 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
Nearby
Alerts in force nowTornadoes on recordThe radar archive20202022
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.