Alert archive / Oregon / Hazardous Seas Warnings / 2020

Hazardous Seas Warnings in Oregon, December 2020

13 hazardous seas warnings in December 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 December 2020. Tap one for its archive.

Hazardous Seas Warnings
13
Busiest day
December 12, 20202 hazardous seas warnings

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.

IssuedProductOfficeCountiesLasted
Dec 4, 2:03 PM PSTHazardous Seas WarningMFR32 hr
Dec 5, 8:37 PM PSTHazardous Seas WarningMFR64 hr
Dec 10, 2:25 PM PSTHazardous Seas WarningMFR24 hr
Dec 12, 3:41 AM PSTHazardous Seas WarningMFR54 hr
Dec 12, 9:04 AM PSTHazardous Seas WarningMFR19 hr
Dec 14, 2:46 AM PSTHazardous Seas WarningMFR65 hr
Dec 15, 2:32 PM PSTHazardous Seas WarningMFR55 hr
Dec 20, 10:10 AM PSTHazardous Seas WarningMFR6 hr
Dec 21, 2:13 AM PSTHazardous Seas WarningMFR20 hr
Dec 21, 10:03 PM PSTHazardous Seas WarningMFR12 hr
Dec 22, 2:16 AM PSTHazardous Seas WarningMFR12 hr
Dec 23, 2:07 PM PSTHazardous Seas WarningMFR32 hr
Dec 24, 9:15 PM PSTHazardous Seas WarningMFR31 hr

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.