Moderate Extreme Weather ● Active

High Surf Warning issued November 12 at 2:47AM PST until November 15 at 4:00AM PST by NWS Eureka CA, United States of America

Event time: Last updated: 31 min ago United States
Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

* WHAT...Dangerously large breaking waves 30 to 35 ft.

* WHERE...Southwestern Humboldt and Coastal Mendocino Counties.

* WHEN...From 4 PM Friday to 4 AM PST Sunday. .

* IMPACTS...Breaking waves can sweep people off jetties and
docks, and into dangerous seas. Life-threatening surf
conditions and significant beach erosion can be expected.

* ADDITIONAL DETAILS...After only brief improvement late
Saturday through Sunday, a second large swell is forecast late
Sunday through Monday.

Measurements

Coordinates39.9645, -100.8105
RegionSouthwestern Humboldt; Coastal Mendocino
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyExpected
Cap CertaintyLikely
Cap Expires2026-11-12T13:00:00-08:00

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

Also reported by: WMO

This event as JSON · API and licence

Source updated 31 minutes ago (Nov 12, 2026 10:49 UTC) · we last heard from WMO Alert Hub (national weather services) 49 seconds ago

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About this location

The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.

Area as the agency stated it: Southwestern Humboldt; Coastal Mendocino

Official authorities in United States

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

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What to do

Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.

When thunder roars, go indoors — lightning risk outdoors, in vehicles, and first aid for strike victims.

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Earlier extreme weather events in United States

Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.

Local Area Emergency — Mono Severe Extreme Weather United States closed via NWS Oct 4, 2026 Local Area Emergency — Mono Severe Extreme Weather United States closed via NWS Oct 4, 2026 Local Area Emergency — Mono Severe Extreme Weather United States closed via NWS Oct 3, 2026 Civil Emergency Message — Upper Canyon Extreme Extreme Weather United States closed via NWS Sep 29, 2026

Nearby & related events

Gale Warning issued November 12 at 3:14AM PST until November 13 at 4:00PM PST by NWS Eureka CA, United States of America Moderate Severe Storm United States active via WMO 7 min ago Wind Advisory issued November 12 at 2:44AM PST until November 13 at 11:00AM PST by NWS Eureka CA, United States of America Moderate Severe Storm United States active via WMO 37 min ago Wind Advisory issued November 12 at 2:44AM PST until November 13 at 1:00PM PST by NWS Eureka CA, United States of America Moderate Severe Storm United States active via WMO 37 min ago Wind Advisory issued November 12 at 2:44AM PST until November 13 at 2:00PM PST by NWS Eureka CA, United States of America Moderate Severe Storm United States active via WMO 37 min ago Gale Warning issued November 12 at 5:44AM EST until November 13 at 7:00PM EST by NWS Boston/Norton MA, United States of America Moderate Severe Storm United States active via WMO 37 min ago

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.