Hazardous Seas Watches in California
178 hazardous seas watches 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 hazardous seas watches reaches back to 2005.
Hazardous Seas Watches by county
Each county as a circle sized by its count since 1986. Tap one for its archive.
- Hazardous Seas Watches
- 178
- Busiest year
- 200929 hazardous seas watches
- Average year
- 9over 19 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
The latest hazardous seas watches
The most recent on file, newest first.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 24, 11:05 AM PDT | Hazardous Seas Watch | EKA | 3 hr | |
| Feb 24, 5:52 AM PST | Hazardous Seas Watch | EKA | 3 hr | |
| Jan 20, 11:59 AM PST | Hazardous Seas Watch | EKA | 11 hr | |
| Jan 5, 8:52 PM PST | Hazardous Seas Watch | EKA | 17 hr | |
| Jan 3, 11:00 PM PST | Hazardous Seas Watch | EKA | 4 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.