Alert archive / California / Gale Warnings in 2023

Gale Warning 37, NWS Eureka, CA

August 20, 2023

NWS Eureka, CA issued this gale warning at Aug 20, 2023, 2:55 AM PDT. It took effect at Aug 20, 2023, 8:00 PM PDT. It was in force for 19 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Aug 20, 2023, 2:55 AM PDT (09:55 UTC)
In effect from
Aug 20, 2023, 8:00 PM PDT
Expired
Aug 21, 2023, 3:00 PM PDT
In force
19 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

190 
WHUS76 KEKA 200955
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
255 AM PDT Sun Aug 20 2023

PZZ470-201800-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-230821T0300Z/
/O.NEW.KEKA.GL.W.0037.230821T0300Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
255 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 8 PM THIS EVENING TO 3 PM PDT
MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 12 to 15 feet expected. For the 
  Small Craft Advisory, north winds 15 to 25 kt with gusts up to 
  35 kt and seas 7 to 11 feet.

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

* WHEN...For the Gale Warning, from 8 PM this evening to 3 PM 
  PDT Monday. For the Small Craft Advisory, until 8 PM PDT this 
  evening.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-201800-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-230821T0700Z/
/O.NEW.KEKA.GL.W.0037.230821T0700Z-230821T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
255 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PDT
MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 30 kt with 
  gusts up to 40 kt and seas 10 to 14 feet expected. For the 
  Small Craft Advisory, north winds 15 to 25 kt with gusts up to 
  30 kt and seas 7 to 10 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PDT 
  Monday. For the Small Craft Advisory, until midnight PDT 
  tonight.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-201800-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-230820T1600Z/
/O.NEW.KEKA.SE.W.0028.230821T0500Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
255 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT THIS
MORNING...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 10 PM THIS EVENING TO
3 PM PDT MONDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 7 to 12 feet expected. For the Small Craft 
  Advisory, seas 5 to 8 feet.

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

* WHEN...For the Hazardous Seas Warning, from 10 PM this evening 
  to 3 PM PDT Monday. For the Small Craft Advisory, until 9 AM 
  PDT this morning.

* 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.

&&

$$

PZZ455-201800-
/O.NEW.KEKA.SC.Y.0087.230821T0600Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
255 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 3 PM
PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  seas 7 to 10 feet expected.

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

* WHEN...From 11 PM this evening to 3 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
8 follow-up statements
943 
WHUS76 KEKA 201559
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
859 AM PDT Sun Aug 20 2023

PZZ450-210000-
/O.EXP.KEKA.SC.Y.0086.000000T0000Z-230820T1600Z/
/O.CON.KEKA.SE.W.0028.230821T0500Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
859 AM PDT Sun Aug 20 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 3 PM PDT MONDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...

* WHAT...Very steep and hazardous seas 7 to 12 feet expected.

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

* WHEN...From 10 PM this evening to 3 PM PDT Monday.

* 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.

&&

$$

PZZ470-210000-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0300Z/
/O.CON.KEKA.GL.W.0037.230821T0300Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
859 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 3 PM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts
  to 45 kt and seas 12 to 15 feet expected. For the Small Craft
  Advisory, north winds 15 to 25 kt with gusts to 35 kt and seas 
  7 to 11 feet.

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

* WHEN...For the Gale Warning, from 8 PM this evening to 3 PM 
  PDT Monday. For the Small Craft Advisory, until 8 PM PDT this 
  evening.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-210000-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0700Z/
/O.CON.KEKA.GL.W.0037.230821T0700Z-230821T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
859 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 30 kt with gusts
  to 40 kt and seas 10 to 14 feet expected. For the Small Craft
  Advisory, north winds 15 to 25 kt with gusts to 30 kt and seas 
  7 to 10 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PDT 
  Monday. For the Small Craft Advisory, until midnight PDT 
  tonight.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ455-210000-
/O.CON.KEKA.SC.Y.0087.230821T0600Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
859 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 3 PM PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts to 30 kt and seas
  7 to 10 feet expected.

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

* WHEN...From 11 PM this evening to 3 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
071 
WHUS76 KEKA 201601
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
901 AM PDT Sun Aug 20 2023

PZZ470-210015-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0300Z/
/O.CON.KEKA.GL.W.0037.230821T0300Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
901 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 3 PM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts
  to 45 kt and seas 12 to 15 feet expected. For the Small Craft
  Advisory, north winds 15 to 25 kt with gusts to 35 kt and seas 
  7 to 11 feet.

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

* WHEN...For the Gale Warning, from 8 PM this evening to 3 PM 
  PDT Monday. For the Small Craft Advisory, until 8 PM PDT this 
  evening.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-210015-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0700Z/
/O.CON.KEKA.GL.W.0037.230821T0700Z-230821T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
901 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 30 kt with gusts
  to 40 kt and seas 10 to 14 feet expected. For the Small Craft
  Advisory, north winds 15 to 25 kt with gusts to 30 kt and seas 
  7 to 10 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PDT 
  Monday. For the Small Craft Advisory, until midnight PDT 
  tonight.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-210015-
/O.CON.KEKA.SE.W.0028.230821T0500Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
901 AM PDT Sun Aug 20 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 3 PM PDT MONDAY...

* WHAT...Very steep and hazardous seas 7 to 12 feet expected.

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

* WHEN...From 10 PM this evening to 3 PM PDT Monday.

* 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.

&&

$$

PZZ455-210015-
/O.CON.KEKA.SC.Y.0087.230821T0600Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
901 AM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 3 PM PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts to 30 kt and seas
  7 to 10 feet expected.

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

* WHEN...From 11 PM this evening to 3 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
818 
WHUS76 KEKA 202153
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
253 PM PDT Sun Aug 20 2023

PZZ470-210600-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0300Z/
/O.CON.KEKA.GL.W.0037.230821T0300Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
253 PM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO 3 PM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with gusts
  to 45 kt and seas 11 to 15 feet expected. For the Small Craft
  Advisory, north winds 15 to 25 kt with gusts to 35 kt and seas 
  7 to 11 feet.

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

* WHEN...For the Gale Warning, from 8 PM this evening to 3 PM 
  PDT Monday. For the Small Craft Advisory, until 8 PM PDT this 
  evening.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-210600-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0700Z/
/O.CON.KEKA.GL.W.0037.230821T0700Z-230821T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
253 PM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with gusts
  to 40 kt and seas 9 to 14 feet expected. For the Small Craft
  Advisory, north winds 15 to 25 kt with gusts to 30 kt and seas 
  7 to 10 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PDT 
  Monday. For the Small Craft Advisory, until midnight PDT 
  tonight.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-210600-
/O.CON.KEKA.SE.W.0028.230821T0500Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
253 PM PDT Sun Aug 20 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 3 PM PDT MONDAY...

* WHAT...Very steep and hazardous seas 6 to 11 feet expected.

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

* WHEN...From 10 PM this evening to 3 PM PDT Monday.

* 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.

&&

$$

PZZ455-210600-
/O.CON.KEKA.SC.Y.0087.230821T0600Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
253 PM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 3 PM PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts to 35 kt and seas
  7 to 10 feet expected.

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

* WHEN...From 11 PM this evening to 3 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
296 
WHUS76 KEKA 210333
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
833 PM PDT Sun Aug 20 2023

PZZ475-211145-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230821T0700Z/
/O.CON.KEKA.GL.W.0037.230821T0700Z-230821T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
833 PM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 30 kt with 
  gusts up to 40 kt and seas 9 to 14 feet expected. For the 
  Small Craft Advisory, north winds 20 to 30 kt with gusts up to 
  35 kt and seas 6 to 11 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PDT 
  Monday. For the Small Craft Advisory, until midnight PDT 
  tonight.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-211145-
/O.CON.KEKA.GL.W.0037.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
833 PM PDT Sun Aug 20 2023

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PDT MONDAY...

* WHAT...North winds 25 to 35 kt with gusts up to 45 kt and seas 
  11 to 15 feet.

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

* WHEN...Until 3 PM PDT Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-211145-
/O.CON.KEKA.SE.W.0028.230821T0500Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
833 PM PDT Sun Aug 20 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT
MONDAY...

* WHAT...Very steep and hazardous seas 6 to 11 feet expected.

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

* WHEN...Until 3 PM PDT Monday.

* 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.

&&

$$

PZZ455-211145-
/O.CON.KEKA.SC.Y.0087.230821T0600Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
833 PM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 35 kt and 
  seas 7 to 10 feet expected.

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

* WHEN...Until 3 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
975 
WHUS76 KEKA 210659
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1159 PM PDT Sun Aug 20 2023

PZZ475-211500-
/O.EXP.KEKA.SC.Y.0086.000000T0000Z-230821T0700Z/
/O.CON.KEKA.GL.W.0037.230821T0700Z-230821T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1159 PM PDT Sun Aug 20 2023

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT MONDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT MIDNIGHT PDT TONIGHT...

* WHAT...North winds 20 to 30 kt with gusts up to 40 kt and seas 
  9 to 14 feet expected.

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

* WHEN...Until 9 AM PDT Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-211500-
/O.CON.KEKA.GL.W.0037.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1159 PM PDT Sun Aug 20 2023

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PDT MONDAY...

* WHAT...North winds 25 to 35 kt with gusts up to 45 kt and seas 
  11 to 15 feet.

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

* WHEN...Until 3 PM PDT Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-211500-
/O.CON.KEKA.SE.W.0028.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
1159 PM PDT Sun Aug 20 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT
MONDAY...

* WHAT...Very steep and hazardous seas 6 to 11 feet.

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

* WHEN...Until 3 PM PDT Monday.

* 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.

&&

$$

PZZ455-211500-
/O.CON.KEKA.SC.Y.0087.000000T0000Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
1159 PM PDT Sun Aug 20 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT MONDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 35 kt and 
  seas 7 to 10 feet.

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

* WHEN...Until 3 PM PDT Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
482 
WHUS76 KEKA 210954
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
254 AM PDT Mon Aug 21 2023

PZZ475-211800-
/O.CON.KEKA.GL.W.0037.000000T0000Z-230821T1600Z/
/O.EXB.KEKA.SE.W.0028.230821T1600Z-230821T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
254 AM PDT Mon Aug 21 2023

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 9 AM THIS MORNING TO
3 PM PDT THIS AFTERNOON...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with 
  gusts up to 40 kt and seas 10 to 14 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 10 to 14 feet 
  expected.

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

* WHEN...For the Gale Warning, until 9 AM PDT this morning. For 
  the Hazardous Seas Warning, from 9 AM this morning to 3 PM PDT 
  this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-211800-
/O.CON.KEKA.GL.W.0037.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
254 AM PDT Mon Aug 21 2023

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...

* WHAT...North winds 25 to 35 kt with gusts up to 45 kt and seas 
  12 to 16 feet.

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

* WHEN...Until 3 PM PDT this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-211800-
/O.CON.KEKA.SE.W.0028.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
254 AM PDT Mon Aug 21 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Very steep and hazardous seas 7 to 11 feet.

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

* WHEN...Until 3 PM PDT 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.

&&

$$

PZZ455-211800-
/O.CON.KEKA.SC.Y.0087.000000T0000Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
254 AM PDT Mon Aug 21 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 35 kt and 
  seas 7 to 10 feet.

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

* WHEN...Until 3 PM PDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
530 
WHUS76 KEKA 211618
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
918 AM PDT Mon Aug 21 2023

PZZ475-212200-
/O.EXP.KEKA.GL.W.0037.000000T0000Z-230821T1600Z/
/O.CON.KEKA.SE.W.0028.000000T0000Z-230821T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
918 AM PDT Mon Aug 21 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Very steep and hazardous seas 10 to 14 feet.

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

* WHEN...Until 3 PM PDT 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.

&&

$$

PZZ470-212200-
/O.CON.KEKA.GL.W.0037.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
918 AM PDT Mon Aug 21 2023

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...

* WHAT...North winds 20 to 30 kt with gusts to 45 kt and seas 12 
  to 16 feet.

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

* WHEN...Until 3 PM PDT this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-212200-
/O.CON.KEKA.SE.W.0028.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
918 AM PDT Mon Aug 21 2023

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Very steep and hazardous seas 7 to 11 feet.

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

* WHEN...Until 3 PM PDT 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.

&&

$$

PZZ455-212200-
/O.CON.KEKA.SC.Y.0087.000000T0000Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
918 AM PDT Mon Aug 21 2023

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* WHAT...Southwest winds 10 to 20 kt with gusts to 30 kt and seas
  7 to 10 feet.

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

* WHEN...Until 3 PM PDT this afternoon.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$
208 
WHUS76 KEKA 212207
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
307 PM PDT Mon Aug 21 2023

PZZ470-220400-
/O.EXP.KEKA.GL.W.0037.000000T0000Z-230821T2200Z/
/O.NEW.KEKA.SC.Y.0088.230821T2207Z-230822T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
307 PM PDT Mon Aug 21 2023

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* WHAT...North winds 10 to 20 kt with gusts to 25 kt and seas 9 
  to 14 feet.

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

* WHEN...Until 9 PM PDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ475-220400-
/O.EXP.KEKA.SE.W.0028.000000T0000Z-230821T2200Z/
/O.NEW.KEKA.SC.Y.0088.230821T2207Z-230822T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
307 PM PDT Mon Aug 21 2023

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* WHAT...North winds 10 to 20 kt with gusts to 25 kt and seas 8 
  to 13 feet.

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

* WHEN...Until 9 PM PDT this evening.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

PZZ450-212315-
/O.EXP.KEKA.SE.W.0028.000000T0000Z-230821T2200Z/
Pt St George to Cape Mendocino out 10 nm-
307 PM PDT Mon Aug 21 2023

...HAZARDOUS SEAS WARNING HAS EXPIRED...

$$

PZZ455-212315-
/O.EXP.KEKA.SC.Y.0087.000000T0000Z-230821T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
307 PM PDT Mon Aug 21 2023

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 20, 2:55 AM PDTSmall Craft AdvisoryEKA36 hr
Aug 20, 2:55 AM PDTHazardous Seas WarningEKA36 hr
Aug 20, 2:27 PM PDTRed Flag WarningEKA21 hr

Nearby

Gale Warnings in California, 2023Every gale warning in 2023

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.