Alert archive / California / Hazardous Seas Warnings

Hazardous Seas Warnings in California, 2020

28 hazardous seas warnings in 2020. 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 warnings reaches back to 2005.

Hazardous Seas Warnings by county

Each county as a circle sized by its count in 2020. Tap one for its archive.

Hazardous Seas Warnings
28
Busiest month
March4 hazardous seas warnings
Busiest day
September 28, 20202 hazardous seas warnings

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.

IssuedProductOfficeCountiesLasted
Jan 10, 2:51 AM PSTHazardous Seas WarningEKA48 hr
Jan 15, 8:09 PM PSTHazardous Seas WarningEKA7 hr
Feb 2, 2:42 PM PSTHazardous Seas WarningEKA30 hr
Feb 7, 2:27 PM PSTHazardous Seas WarningEKA5 days
Mar 2, 2:38 AM PSTHazardous Seas WarningEKA6 hr
Mar 3, 3:12 PM PSTHazardous Seas WarningEKA15 hr
Mar 11, 2:33 PM PDTHazardous Seas WarningEKA13 hr
Mar 12, 3:19 AM PDTHazardous Seas WarningEKA35 hr
Jun 25, 2:14 AM PDTHazardous Seas WarningEKA63 hr
Jun 27, 9:08 PM PDTHazardous Seas WarningEKA12 hr
Jun 29, 11:02 AM PDTHazardous Seas WarningEKA10 hr
Jun 30, 2:26 AM PDTHazardous Seas WarningEKA24 hr
Jul 2, 3:29 AM PDTHazardous Seas WarningEKA24 hr
Jul 13, 8:38 PM PDTHazardous Seas WarningEKA18 hr
Aug 7, 3:31 AM PDTHazardous Seas WarningEKA71 hr
Aug 10, 3:05 AM PDTHazardous Seas WarningEKA30 hr
Aug 12, 3:08 PM PDTHazardous Seas WarningEKA42 hr
Aug 26, 3:34 AM PDTHazardous Seas WarningEKA6 days
Sep 1, 3:34 AM PDTHazardous Seas WarningEKA17 hr
Sep 27, 7:20 PM PDTHazardous Seas WarningEKA8 hr
Sep 28, 3:01 AM PDTHazardous Seas WarningEKA9 hr
Oct 22, 8:55 PM PDTHazardous Seas WarningEKA6 hr
Oct 25, 8:52 AM PDTHazardous Seas WarningEKA12 hr
Nov 5, 2:38 PM PSTHazardous Seas WarningEKA4 days
Nov 13, 11:25 AM PSTHazardous Seas WarningEKA10 hr
Nov 24, 8:44 AM PSTHazardous Seas WarningEKA42 hr
Dec 6, 2:31 PM PSTHazardous Seas WarningEKA54 hr
Dec 14, 3:01 AM PSTHazardous Seas WarningEKA65 hr

The busiest days

Days with the most alerts issued, by UTC date.

  1. September 28, 20202hazardous seas warnings
  2. January 10, 20201hazardous seas warnings
  3. January 16, 20201hazardous seas warnings
  4. February 2, 20201hazardous seas warnings
  5. February 7, 20201hazardous seas warnings
  6. March 2, 20201hazardous seas warnings
  7. March 3, 20201hazardous seas warnings
  8. March 11, 20201hazardous seas warnings
  9. March 12, 20201hazardous seas warnings
  10. June 25, 20201hazardous seas warnings
  11. June 28, 20201hazardous seas warnings
  12. June 29, 20201hazardous seas warnings

Nearby

Alerts in force nowTornadoes on recordThe radar archive20192021

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.