Hazardous Seas Warnings in Oregon

1,324 hazardous seas warnings 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 warnings reaches back to 2005.

Hazardous Seas Warnings by county

Each county as a circle sized by its count since 1986. Tap one for its archive.

Hazardous Seas Warnings: 1,324
Busiest year: 2023120 hazardous seas warnings
Average year: 70over 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 warnings

The most recent on file, newest first.

Issued	Product	Office	Lasted
Sep 20, 1:35 PM PDT	Hazardous Seas Warning	MFR	47 hr
Sep 13, 8:32 PM PDT	Hazardous Seas Warning	MFR	50 hr
Sep 9, 12:07 PM PDT	Hazardous Seas Warning	MFR	25 hr
Sep 8, 12:00 AM PDT	Hazardous Seas Warning	MFR	29 hr
Aug 2, 2:58 PM PDT	Hazardous Seas Warning	MFR	54 hr
Jul 17, 10:52 PM PDT	Hazardous Seas Warning	MFR	48 hr
Jul 7, 12:06 PM PDT	Hazardous Seas Warning	MFR	60 hr
Jul 3, 11:59 AM PDT	Hazardous Seas Warning	MFR	62 hr
Jun 27, 8:31 PM PDT	Hazardous Seas Warning	MFR	38 hr
Jun 20, 12:43 PM PDT	Hazardous Seas Warning	MFR	58 hr
Jun 16, 12:42 PM PDT	Hazardous Seas Warning	MFR	63 hr
Jun 9, 8:54 PM PDT	Hazardous Seas Warning	MFR	26 hr

Nearby

Alerts in force now Tornadoes on record The radar archive

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. Rebuilt daily.