Marine Weather Message
Issued by NWS Eureka, CA

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706
WHUS76 KEKA 201901
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1101 AM PST Thu Nov 20 2025

PZZ450-210315-
/O.CON.KEKA.SC.Y.0128.000000T0000Z-251120T2300Z/
/O.UPG.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
/O.NEW.KEKA.SE.W.0037.251120T2300Z-251121T1700Z/
Pt St George to Cape Mendocino out 10 nm-
1101 AM PST Thu Nov 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 AM PST FRIDAY...

* WHAT...For the Hazardous Seas Warning, very steep and
  hazardous seas 11 to 16 feet expected. For the Small Craft
  Advisory, seas 9 to 11 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...For the Hazardous Seas Warning, from 3 PM this
  afternoon to 9 AM PST Friday. For the Small Craft Advisory,
  until 3 PM PST this afternoon.

* IMPACTS...Very steep and hazardous seas could capsize or cause
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ455-210315-
/O.CON.KEKA.SC.Y.0128.000000T0000Z-251120T2300Z/
/O.UPG.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
/O.NEW.KEKA.SE.W.0037.251120T2300Z-251121T1700Z/
Cape Mendocino to Pt Arena out 10 nm-
1101 AM PST Thu Nov 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 AM PST FRIDAY...

* WHAT...For the Hazardous Seas Warning, very steep and
  hazardous seas 12 to 16 feet expected. For the Small Craft
  Advisory, seas 7 to 9 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...For the Hazardous Seas Warning, from 3 PM this
  afternoon to 9 AM PST Friday. For the Small Craft Advisory,
  until 3 PM PST this afternoon.

* IMPACTS...Very steep and hazardous seas could capsize or cause
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ470-210315-
/O.CON.KEKA.SC.Y.0128.000000T0000Z-251120T2300Z/
/O.UPG.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
/O.NEW.KEKA.SE.W.0037.251120T2300Z-251121T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1101 AM PST Thu Nov 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 AM PST FRIDAY...

* WHAT...For the Hazardous Seas Warning, very steep and
  hazardous seas 13 to 17 feet expected. For the Small Craft
  Advisory, seas 11 to 13 feet.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...For the Hazardous Seas Warning, from 3 PM this
  afternoon to 9 AM PST Friday. For the Small Craft Advisory,
  until 3 PM PST this afternoon.

* IMPACTS...Very steep and hazardous seas could capsize or cause
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$

PZZ475-210315-
/O.CON.KEKA.SC.Y.0128.000000T0000Z-251120T2300Z/
/O.UPG.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
/O.NEW.KEKA.SE.W.0037.251120T2300Z-251121T1700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1101 AM PST Thu Nov 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
9 AM PST FRIDAY...

* WHAT...For the Hazardous Seas Warning, very steep and
  hazardous seas 14 to 16 feet expected. For the Small Craft
  Advisory, northwest winds 10 to 15 kt with gusts up to 25 kt
  and seas 10 to 12 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...For the Hazardous Seas Warning, from 3 PM this
  afternoon to 9 AM PST Friday. For the Small Craft Advisory,
  until 3 PM PST this afternoon.

* IMPACTS...Very steep and hazardous seas could capsize or cause
  damage to vessels.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Recreational boaters should remain in port. Commercial vessels
should prepare for rough seas and consider remaining in port
until hazardous seas subside.

&&

$$