Small Craft Advisory
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
258 AM PST Thu Nov 20 2025
PZZ455-201900-
/O.CON.KEKA.SC.Y.0128.251120T1700Z-251120T2300Z/
/O.CON.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
Cape Mendocino to Pt Arena out 10 nm-
258 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH FRIDAY MORNING...
* WHAT...For the Small Craft Advisory, seas 7 to 9 feet
expected. For the Hazardous Seas Watch, very steep and
hazardous seas 12 to 16 feet possible.
* WHERE...Cape Mendocino to Pt Arena out 10 nm.
* WHEN...For the Small Craft Advisory, from 9 AM this morning to
3 PM PST this afternoon. For the Hazardous Seas Watch, from
this afternoon through Friday morning.
* IMPACTS...Very steep and hazardous seas could capsize or cause
damage to vessels.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Consider altering your plans to avoid possible hazardous sea
conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
258 AM PST Thu Nov 20 2025
PZZ450-201900-
/O.CON.KEKA.SC.Y.0128.251120T1700Z-251120T2300Z/
/O.CON.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
Pt St George to Cape Mendocino out 10 nm-
258 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH FRIDAY MORNING...
* WHAT...For the Small Craft Advisory, seas 9 to 11 feet
expected. For the Hazardous Seas Watch, very steep and
hazardous seas 11 to 16 feet possible.
* WHERE...Pt St George to Cape Mendocino out 10 nm.
* WHEN...For the Small Craft Advisory, from 9 AM this morning to
3 PM PST this afternoon. For the Hazardous Seas Watch, from
this afternoon through Friday morning.
* IMPACTS...Very steep and hazardous seas could capsize or cause
damage to vessels.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Consider altering your plans to avoid possible hazardous sea
conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
258 AM PST Thu Nov 20 2025
PZZ470-201900-
/O.CON.KEKA.SC.Y.0128.251120T1700Z-251120T2300Z/
/O.CON.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
258 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH FRIDAY MORNING...
* WHAT...For the Small Craft Advisory, seas 11 to 13 feet
expected. For the Hazardous Seas Watch, very steep and
hazardous seas 13 to 17 feet possible.
* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.
* WHEN...For the Small Craft Advisory, from 9 AM this morning to
3 PM PST this afternoon. For the Hazardous Seas Watch, from
this afternoon through Friday morning.
* IMPACTS...Very steep and hazardous seas could capsize or cause
damage to vessels.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Consider altering your plans to avoid possible hazardous sea
conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
258 AM PST Thu Nov 20 2025
PZZ475-201900-
/O.CON.KEKA.SC.Y.0128.251120T1700Z-251120T2300Z/
/O.CON.KEKA.SE.A.0010.251120T2300Z-251121T1700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
258 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 3 PM PST THIS AFTERNOON...
...HAZARDOUS SEAS WATCH REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH FRIDAY MORNING...
* WHAT...For the Small Craft Advisory, northwest winds 15 to 20
kt with gusts up to 25 kt and seas 10 to 12 feet expected. For
the Hazardous Seas Watch, very steep and hazardous seas 14 to
16 feet possible.
* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.
* WHEN...For the Small Craft Advisory, from 9 AM this morning to
3 PM PST this afternoon. For the Hazardous Seas Watch, from
this afternoon through Friday morning.
* IMPACTS...Very steep and hazardous seas could capsize or cause
damage to vessels.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Consider altering your plans to avoid possible hazardous sea
conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service Medford OR
300 AM PST Thu Nov 20 2025
PZZ350-356-370-376-210000-
/O.CON.KMFR.SC.Y.0102.000000T0000Z-251122T0300Z/
Coastal waters from Florence to Cape Blanco OR out 10 nm-
Coastal waters from Cape Blanco OR to Pt. St. George CA out 10 nm-
Waters from Florence to Cape Blanco OR from 10 to 60 nm-
Waters from Cape Blanco OR to Pt. St. George CA from 10 to 60 nm-
300 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST FRIDAY...
* WHAT...West winds today at 10 to 15 kt with gusts up to 20 kt
and seas 12 to 17 ft at 15 seconds. Northerly winds develop on
Friday at 15 to 25 kt with gusts around 30 kt and seas 10 to 23
ft at 13 seconds.
* WHERE...All areas.
* WHEN...Until 7 PM PST Friday.
* IMPACTS...Gusty winds and/or steep seas could capsize or
damage vessels.
* View the hazard area in detail at https://go.usa.gov/x6hks
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners and those operating smaller vessels should
remain in port and avoid the area of hazardous conditions.
&&
$$
Visit us at https://www.weather.gov/Medford
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
233 AM PST Thu Nov 20 2025
PZZ540-201845-
/O.CON.KMTR.SC.Y.0204.251120T1100Z-251122T0500Z/
Coastal Waters from Point Arena to Point Reyes California out to
10 NM-
233 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST FRIDAY...
* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and
seas 8 to 13 ft expected.
* WHERE...Coastal Waters from Point Arena to Point Reyes
California out to 10 NM.
* WHEN...Until 9 PM PST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
URGENT - MARINE WEATHER MESSAGE
National Weather Service San Francisco Bay Area
233 AM PST Thu Nov 20 2025
PZZ570-201845-
/O.CON.KMTR.SC.Y.0203.000000T0000Z-251122T0500Z/
Waters from Point Arena to Point Reyes 10-60 NM-
233 AM PST Thu Nov 20 2025
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PST FRIDAY...
* WHAT...North winds 15 to 25 kt with gusts up to 34 kt and seas
9 to 14 ft.
* WHERE...Waters from Point Arena to Point Reyes 10-60 NM.
* WHEN...Until 9 PM PST Friday.
* IMPACTS...Conditions will be hazardous to small craft.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.
&&
$$
