Coastal Flood Watch

Coastal Hazard Message
National Weather Service Eureka CA
314 AM PST Tue Nov 4 2025

CAZ103-041915-
/O.CON.KEKA.CF.A.0001.251105T1700Z-251105T2000Z/
Northern Humboldt Coast-
314 AM PST Tue Nov 4 2025

...COASTAL FLOOD WATCH REMAINS IN EFFECT WEDNESDAY MORNING...

* WHAT...High astronomical tides and south winds may cause
  moderate flooding in low lying areas along the Redwood coast. Up
  to one half foot (9.0 to 9.5 feet MLLW) of saltwater inundation
  above ground level is possible in low lying areas near
  shorelines and tidal waterways.

* WHERE...Northern Humboldt Coast County. This includes King
  Salmon, the Arcata Bottoms and areas right on the waterfront
  in Eureka.

* WHEN...Wednesday morning. Additional flooding is possible
  Thursday morning.

* IMPACTS...Several coastal roads may be closed. Low lying
  property and some critical infrastructure will be inundated.
  Some shoreline erosion may occur.

* ADDITIONAL DETAILS...Minor flooding is possible Tuesday with
  tides reaching near 8.8 above MLLW. Additional flooding is
  also expected Thursday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Watch means that flooding is possible but not
imminent. Coastal residents in the watch area should begin
preparations for rising water and take appropriate action to
protect life and property.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.

&&

$$

Coastal Hazard Message
National Weather Service Medford OR
424 AM PST Tue Nov 4 2025

ORZ021-050400-
/O.CON.KMFR.SU.Y.0007.251105T0300Z-251107T0600Z/
/O.CON.KMFR.CF.A.0001.251106T1200Z-251107T0600Z/
South Central Oregon Coast-
424 AM PST Tue Nov 4 2025

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO
10 PM PST THURSDAY...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY
NIGHT THROUGH THURSDAY EVENING...

* WHAT...For the High Surf Advisory, large breaking waves of 20
  to 25 feet. For the Coastal Flood Watch, minor tidal flooding
  is possible during high tide.

* WHERE...For the High Surf Advisory, South Central Oregon
  Coast. For the Coastal Flood Watch, Coos Bay and estuaries.

* WHEN...For the High Surf Advisory, from 7 PM this evening to
  10 PM PST Thursday. For the Coastal Flood Watch, from late
  Wednesday night through Thursday evening.

* IMPACTS...For the High Surf Advisory, large breaking waves
  will create hazardous conditions along and within the surf
  zone, and could inundate beaches and low lying shorelines.
  Beach erosion is possible, and exposed infrastructure may be
  damaged. For the Coastal Flood Watch, low lying roadways may
  be closed. Low lying property, and some critical
  infrastructure may be inundated. Some shoreline erosion may
  occur.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/map/?wfo=mfr

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If travel is required, allow extra time as some roads may be
closed. Do not drive around barricades or through water of
unknown depth. Take the necessary actions to protect flood-prone
property.

Stay away from the surf zone and off of jetties. Area beaches may
become hazardous due to dangerous surf conditions.

&&

$$