Coastal Flood Watch

Coastal Hazard Message
National Weather Service Eureka CA
1033 AM PST Wed Nov 5 2025

CAZ101-104-109-060245-
/O.CON.KEKA.CF.Y.0004.000000T0000Z-251105T2000Z/
/O.CON.KEKA.CF.A.0002.251106T1800Z-251106T2100Z/
Coastal Del Norte-Southwestern Humboldt-Mendocino Coast-
1033 AM PST Wed Nov 5 2025

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON PST
TODAY...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY AFTERNOON...

* WHAT...For the Coastal Flood Advisory, High astronomical tides
  and large surf will cause minor flooding in low lying areas
  along the coast. Up to one foot of saltwater inundation above
  ground level is possible near shorelines and tidal waterways.

* WHAT...For the Coastal Flood Watch, High astronomical tides
  and large surf may cause moderate flooding in low lying areas
  along the Redwood Coast. Up to one foot of saltwater
  inundation above ground level is possible in low lying areas
  near shorelines and tidal waterways.

* WHERE...Coastal Del Norte, Coastal southern Humboldt and
  Coastal Mendocino Counties.

* WHEN...For the Coastal Flood Advisory, from 9 AM to noon PST
  Wednesday. For the Coastal Flood Watch, from Thursday morning
  through Thursday afternoon.

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

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 Eureka CA
1033 AM PST Wed Nov 5 2025

CAZ103-060245-
/O.CON.KEKA.CF.Y.0004.000000T0000Z-251105T2000Z/
/O.CON.KEKA.CF.A.0002.251106T1800Z-251106T2100Z/
Northern Humboldt Coast-
1033 AM PST Wed Nov 5 2025

...COASTAL FLOOD ADVISORY REMAINS IN EFFECT UNTIL NOON PST
TODAY...
...COASTAL FLOOD WATCH REMAINS IN EFFECT FROM THURSDAY MORNING
THROUGH THURSDAY AFTERNOON...

* WHAT...For the Coastal Flood Advisory, High astronomical tides
  will cause minor to moderate flooding in low lying areas
  around Humboldt Bay and along the coast. Up to one foot of
  saltwater inundation above ground level is possible near
  shorelines and tidal waterways. Between 9.0 and 9.3 feet MLLW
  at the North Spit tide gauge is predicted.

* WHAT...For the Coastal Flood Watch, high astronomical tides
  and large surf may cause moderate flooding in low lying areas
  along the Redwood Coast. Up to one foot of saltwater
  inundation above ground level is possible in low lying areas
  near shorelines and tidal waterways. Between 9.0 and 9.5 feet
  MLLW at the North Spit tide gauge is predicted.

* WHERE...Northern Humboldt Coast. This includes King Salmon,
  the Arcata Bottoms and areas right on the waterfront in
  Eureka. This may also impact Centerville Beach road.

* WHEN...For the Coastal Flood Advisory, from 9 AM to noon PST
  Wednesday. For the Coastal Flood Watch, from Thursday morning
  through Thursday afternoon. High tide is at 10:37 AM at the
  Humboldt Bay North Spit tide gauge Wednesday and at 11:17 AM on
  Thursday. Saltwater inundation will be possible 1 to 2 hours
  before and after high tide.

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

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.

&&

$$