Alert archive / California / Coastal Flood Advisories
Coastal Flood Advisories in California, 2021
20 coastal flood advisories in 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 coastal flood advisories reaches back to 2005.
Coastal Flood Advisories by county
Each county as a circle sized by its count in 2021. Tap one for its archive.
- Coastal Flood Advisories
- 20
- Busiest month
- January10 coastal flood advisories
- Busiest day
- January 10, 20214 coastal flood 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 9, 2:24 PM PST | Coastal Flood Advisory | EKA | Del Norte, Humboldt | 21 hr |
| Jan 10, 1:09 AM PST | Coastal Flood Advisory | MTR | Marin, Monterey, Napa, City and County of San Francisco, San Mateo, Santa Cruz and 1 more | 36 hr |
| Jan 10, 1:36 AM PST | Coastal Flood Advisory | SGX | San Diego | 59 hr |
| Jan 10, 2:18 AM PST | Coastal Flood Advisory | LOX | Los Angeles | 33 hr |
| Jan 10, 2:12 PM PST | Coastal Flood Advisory | EKA | Humboldt | 21 hr |
| Jan 11, 2:17 PM PST | Coastal Flood Advisory | EKA | Del Norte, Humboldt | 22 hr |
| Jan 11, 2:35 PM PST | Coastal Flood Advisory | MTR | Marin, Monterey, Napa, City and County of San Francisco, San Mateo, Santa Cruz and 1 more | 22 hr |
| Jan 13, 11:30 AM PST | Coastal Flood Advisory | EKA | Humboldt | 90 min |
| Jan 26, 2:10 PM PST | Coastal Flood Advisory | LOX | 46 hr | |
| Jan 28, 4:16 AM PST | Coastal Flood Advisory | EKA | Humboldt | 8 hr |
| Jun 23, 3:14 PM PDT | Coastal Flood Advisory | EKA | Humboldt | 10 hr |
| Jun 24, 2:21 PM PDT | Coastal Flood Advisory | EKA | Humboldt | 12 hr |
| Nov 4, 2:49 AM PDT | Coastal Flood Advisory | EKA | Humboldt | 10 hr |
| Nov 4, 2:23 PM PDT | Coastal Flood Advisory | EKA | Humboldt | 24 hr |
| Nov 5, 2:30 PM PDT | Coastal Flood Advisory | EKA | Humboldt | 24 hr |
| Dec 2, 12:37 PM PST | Coastal Flood Advisory | MTR | Alameda, Contra Costa, Marin, Napa, City and County of San Francisco, San Mateo and 2 more | 3 days |
| Dec 3, 4:03 AM PST | Coastal Flood Advisory | EKA | Humboldt | 7 hr |
| Dec 3, 2:30 PM PST | Coastal Flood Advisory | EKA | Humboldt | 22 hr |
| Dec 4, 2:11 PM PST | Coastal Flood Advisory | EKA | Humboldt | 23 hr |
| Dec 30, 1:23 PM PST | Coastal Flood Advisory | EKA | Humboldt | 22 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 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.