Alert archive / California / Hazardous Seas Warnings in 2021

Hazardous Seas Warning 39, NWS Eureka, CA

June 18, 2021

NWS Eureka, CA issued this hazardous seas warning at Jun 18, 2021, 2:07 AM PDT. It took effect at Jun 18, 2021, 5:00 PM PDT. It was in force for 21 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
Jun 18, 2021, 2:07 AM PDT (09:07 UTC)
In effect from
Jun 18, 2021, 5:00 PM PDT
Expired
Jun 19, 2021, 2:20 PM PDT
In force
21 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

026 
WHUS76 KEKA 180907
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
207 AM PDT Fri Jun 18 2021

PZZ450-181715-
/O.EXT.KEKA.SC.Y.0070.000000T0000Z-210619T0000Z/
/O.NEW.KEKA.SE.W.0039.210619T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
207 AM PDT Fri Jun 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 5 PM THIS AFTERNOON TO
3 PM PDT SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 10 to 13 feet expected. For the Small Craft 
  Advisory, north winds 15 to 25 kt with gusts up to 40 kt and 
  seas 8 to 10 feet.

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

* WHEN...For the Hazardous Seas Warning, from 5 PM this 
  afternoon to 3 PM PDT Saturday. For the Small Craft Advisory, 
  until 5 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.

&&

$$

PZZ470-181715-
/O.EXT.KEKA.GL.W.0034.000000T0000Z-210620T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
207 AM PDT Fri Jun 18 2021

...GALE WARNING NOW IN EFFECT UNTIL 3 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 
  12 to 17 feet.

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

* WHEN...Until 3 AM PDT Sunday.

* 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.

&&

$$

PZZ475-181715-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
207 AM PDT Fri Jun 18 2021

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

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  11 to 16 feet.

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ455-181715-
/O.EXT.KEKA.SC.Y.0069.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
207 AM PDT Fri Jun 18 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PDT SATURDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and 
  seas 7 to 12 feet.

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

* WHEN...Until 3 PM PDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
7 follow-up statements
105 
WHUS76 KEKA 181526
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
826 AM PDT Fri Jun 18 2021

PZZ470-182330-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210620T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
826 AM PDT Fri Jun 18 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 
  12 to 17 feet.

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

* WHEN...Until 3 AM PDT Sunday.

* 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.

&&

$$

PZZ475-182330-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
826 AM PDT Fri Jun 18 2021

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

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

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ450-182330-
/O.CON.KEKA.SC.Y.0070.000000T0000Z-210619T0000Z/
/O.CON.KEKA.SE.W.0039.210619T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
826 AM PDT Fri Jun 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 3 PM PDT SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 10 to 13 feet expected. For the Small Craft 
  Advisory, north winds 15 to 25 kt with gusts up to 45 kt and 
  seas 8 to 10 feet.

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

* WHEN...For the Hazardous Seas Warning, from 5 PM this 
  afternoon to 3 PM PDT Saturday. For the Small Craft Advisory, 
  until 5 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.

&&

$$

PZZ455-182330-
/O.CON.KEKA.SC.Y.0069.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
826 AM PDT Fri Jun 18 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 45 kt and 
  seas 7 to 12 feet.

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

* WHEN...Until 3 PM PDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
342 
WHUS76 KEKA 182129
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
229 PM PDT Fri Jun 18 2021

PZZ470-190530-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210620T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
229 PM PDT Fri Jun 18 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 
  13 to 17 feet.

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

* WHEN...Until 3 AM PDT Sunday.

* 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.

&&

$$

PZZ475-190530-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
229 PM PDT Fri Jun 18 2021

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

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

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ450-190530-
/O.CON.KEKA.SC.Y.0070.000000T0000Z-210619T0000Z/
/O.CON.KEKA.SE.W.0039.210619T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
229 PM PDT Fri Jun 18 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT
SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 10 to 13 feet expected. For the Small Craft 
  Advisory, north winds 15 to 25 kt with gusts up to 45 kt and 
  seas 8 to 10 feet.

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

* WHEN...For the Hazardous Seas Warning, until 3 PM PDT 
  Saturday. For the Small Craft Advisory, until 5 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.

&&

$$

PZZ455-190530-
/O.CON.KEKA.SC.Y.0069.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
229 PM PDT Fri Jun 18 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 45 kt and 
  seas 7 to 12 feet.

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

* WHEN...Until 3 PM PDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
617 
WHUS76 KEKA 182357
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
457 PM PDT Fri Jun 18 2021

PZZ450-190800-
/O.CAN.KEKA.SC.Y.0070.000000T0000Z-210619T0000Z/
/O.CON.KEKA.SE.W.0039.210619T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
457 PM PDT Fri Jun 18 2021

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

* WHAT...Very steep and hazardous seas 10 to 13 feet expected.

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ455-190800-
/O.UPG.KEKA.SC.Y.0069.000000T0000Z-210619T2200Z/
/O.EXA.KEKA.SE.W.0039.210619T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
457 PM PDT Fri Jun 18 2021

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 3 PM PDT SATURDAY...

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

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ470-190800-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210620T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
457 PM PDT Fri Jun 18 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 
  13 to 17 feet.

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

* WHEN...Until 3 AM PDT Sunday.

* 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.

&&

$$

PZZ475-190800-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
457 PM PDT Fri Jun 18 2021

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

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

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$
513 
WHUS76 KEKA 190315
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
815 PM PDT Fri Jun 18 2021

PZZ470-191115-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210620T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
815 PM PDT Fri Jun 18 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 3 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 
  13 to 17 feet.

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

* WHEN...Until 3 AM PDT Sunday.

* 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.

&&

$$

PZZ475-191115-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
815 PM PDT Fri Jun 18 2021

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

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

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ450-191115-
/O.CON.KEKA.SE.W.0039.000000T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
815 PM PDT Fri Jun 18 2021

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

* WHAT...Very steep and hazardous seas 9 to 13 feet.

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$

PZZ455-191115-
/O.CON.KEKA.SE.W.0039.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
815 PM PDT Fri Jun 18 2021

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

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

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

* WHEN...Until 3 PM PDT Saturday.

* 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.

&&

$$
733 
WHUS76 KEKA 190906
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
206 AM PDT Sat Jun 19 2021

PZZ470-191715-
/O.EXT.KEKA.GL.W.0034.000000T0000Z-210620T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
206 AM PDT Sat Jun 19 2021

...GALE WARNING NOW IN EFFECT UNTIL 9 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 
  13 to 17 feet.

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

* WHEN...Until 9 AM PDT Sunday.

* 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.

&&

$$

PZZ455-191600-
/O.EXT.KEKA.SE.W.0039.000000T0000Z-210619T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
206 AM PDT Sat Jun 19 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

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

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

* WHEN...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.

&&

$$

PZZ475-191715-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
206 AM PDT Sat Jun 19 2021

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

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  12 to 16 feet.

* WHERE...Cape Mendocino to Pt Arena 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.

&&

$$

PZZ450-191715-
/O.CON.KEKA.SE.W.0039.000000T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
206 AM PDT Sat Jun 19 2021

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

* WHAT...Very steep and hazardous seas 10 to 13 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.

&&

$$
750 
WHUS76 KEKA 191603
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
903 AM PDT Sat Jun 19 2021

PZZ455-191715-
/O.EXP.KEKA.SE.W.0039.000000T0000Z-210619T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
903 AM PDT Sat Jun 19 2021

...HAZARDOUS SEAS WARNING EXPIRING AT 9 AM PDT THIS MORNING...

$$

PZZ470-200015-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210620T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
903 AM PDT Sat Jun 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SUNDAY...

* WHAT...North winds 30 to 40 kt with gusts up to 45 kt and seas 
  13 to 17 feet.

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

* WHEN...Until 9 AM PDT Sunday.

* 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.

&&

$$

PZZ475-192200-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
903 AM PDT Sat Jun 19 2021

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

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  12 to 16 feet.

* WHERE...Cape Mendocino to Pt Arena 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.

&&

$$

PZZ450-192200-
/O.CON.KEKA.SE.W.0039.000000T0000Z-210619T2200Z/
Pt St George to Cape Mendocino out 10 nm-
903 AM PDT Sat Jun 19 2021

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

* WHAT...Very steep and hazardous seas 10 to 13 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.

&&

$$
849 
WHUS76 KEKA 192120
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
220 PM PDT Sat Jun 19 2021

PZZ475-200530-
/O.CAN.KEKA.GL.W.0034.000000T0000Z-210619T2200Z/
/O.NEW.KEKA.SC.Y.0071.210619T2200Z-210621T0900Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
220 PM PDT Sat Jun 19 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM PDT MONDAY...
...GALE WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with local gusts up to 35 kt this
  evening and seas 10 to 13 feet expected... and subsiding.

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

* WHEN...Until 2 AM 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.

&&

$$

PZZ450-200530-
/O.CAN.KEKA.SE.W.0039.000000T0000Z-210619T2200Z/
/O.NEW.KEKA.SC.Y.0071.210619T2200Z-210621T0900Z/
Pt St George to Cape Mendocino out 10 nm-
220 PM PDT Sat Jun 19 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM PDT MONDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and
  seas 7 to 12 feet...subsiding.

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

* WHEN...Until 2 AM 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.

&&

$$

PZZ470-200530-
/O.CON.KEKA.GL.W.0034.000000T0000Z-210620T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
220 PM PDT Sat Jun 19 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT SUNDAY...

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas
  12 to 15 feet...subsiding

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

* WHEN...Until 9 AM PDT Sunday.

* 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.

&&

$$

Nearby

Hazardous Seas Warnings in California, 2021Every hazardous seas warning in 2021

Sources

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