Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 37, NWS Eureka, CA

March 26, 2021

NWS Eureka, CA issued this small craft advisory at Mar 26, 2021, 2:41 AM PDT. It took effect at Mar 26, 2021, 3:00 AM PDT. It was in force for 37 hr.

The area

The counties it named.

The facts

Issued
Mar 26, 2021, 2:41 AM PDT (09:41 UTC)
In effect from
Mar 26, 2021, 3:00 AM PDT
Expired
Mar 27, 2021, 3:55 PM PDT
In force
37 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

339 
WHUS76 KEKA 260941
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
241 AM PDT Fri Mar 26 2021

PZZ470-261745-
/O.EXP.KEKA.GL.W.0019.000000T0000Z-210326T1000Z/
/O.NEW.KEKA.SE.W.0021.210326T1000Z-210327T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
241 AM PDT Fri Mar 26 2021

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

* WHAT...Very steep and hazardous seas 10 to 12 feet expected.

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ450-455-261745-
/O.EXP.KEKA.GL.W.0019.000000T0000Z-210326T1000Z/
/O.NEW.KEKA.SC.Y.0037.210326T1000Z-210327T1000Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
241 AM PDT Fri Mar 26 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT SATURDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  7 to 11 feet expected.

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ475-261300-
/O.CON.KEKA.GL.W.0019.000000T0000Z-210326T1300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
241 AM PDT Fri Mar 26 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 6 AM PDT EARLY THIS
MORNING...

* WHAT...North winds 25 to 30 kt with gusts up to 35 kt and seas 
  12 to 14 feet.

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

* WHEN...Until 6 AM PDT early this morning.

* 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.

&&

$$
9 follow-up statements
242 
WHUS76 KEKA 261248
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
548 AM PDT Fri Mar 26 2021

PZZ475-262100-
/O.CAN.KEKA.GL.W.0019.000000T0000Z-210326T1300Z/
/O.EXA.KEKA.SE.W.0021.000000T0000Z-210327T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
548 AM PDT Fri Mar 26 2021

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

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

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ470-262100-
/O.CON.KEKA.SE.W.0021.000000T0000Z-210327T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
548 AM PDT Fri Mar 26 2021

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

* WHAT...Very steep and hazardous seas 10 to 12 feet.

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ450-455-262100-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T1000Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
548 AM PDT Fri Mar 26 2021

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

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  7 to 11 feet.

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

* WHEN...Until 3 AM 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.

&&

$$
047 
WHUS76 KEKA 261534
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
834 AM PDT Fri Mar 26 2021

PZZ470-475-262345-
/O.CON.KEKA.SE.W.0021.000000T0000Z-210327T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
834 AM PDT Fri Mar 26 2021

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

* WHAT...Very steep and hazardous seas 9 to 12 feet.

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ450-455-262345-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T1000Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
834 AM PDT Fri Mar 26 2021

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

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 3 AM 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.

&&

$$
514 
WHUS76 KEKA 262116
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
216 PM PDT Fri Mar 26 2021

PZZ470-270530-
/O.EXT.KEKA.SE.W.0021.000000T0000Z-210327T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
216 PM PDT Fri Mar 26 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 6 AM PDT SATURDAY...

* WHAT...Very steep and hazardous seas 10 to 12 feet.

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

* WHEN...Until 6 AM 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.

&&

$$

PZZ475-270530-
/O.CON.KEKA.SE.W.0021.000000T0000Z-210327T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
216 PM PDT Fri Mar 26 2021

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

* WHAT...Very steep and hazardous seas 9 to 12 feet.

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ450-270530-
/O.EXT.KEKA.SC.Y.0037.000000T0000Z-210327T1400Z/
Pt St George to Cape Mendocino out 10 nm-
216 PM PDT Fri Mar 26 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 7 AM PDT SATURDAY...

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

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

* WHEN...Until 7 AM 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.

&&

$$

PZZ455-270530-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
216 PM PDT Fri Mar 26 2021

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

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 3 AM 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.

&&

$$
786 
WHUS76 KEKA 270332
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
832 PM PDT Fri Mar 26 2021

PZZ470-271145-
/O.CON.KEKA.SE.W.0021.000000T0000Z-210327T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
832 PM PDT Fri Mar 26 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 AM PDT
SATURDAY...

* WHAT...Very steep and hazardous seas 10 to 12 feet.

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

* WHEN...Until 6 AM 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.

&&

$$

PZZ475-271000-
/O.CON.KEKA.SE.W.0021.000000T0000Z-210327T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
832 PM PDT Fri Mar 26 2021

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

* WHAT...Very steep and hazardous seas 9 to 12 feet.

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ450-271145-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T1400Z/
Pt St George to Cape Mendocino out 10 nm-
832 PM PDT Fri Mar 26 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PDT
SATURDAY...

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

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

* WHEN...Until 7 AM 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.

&&

$$

PZZ455-271000-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
832 PM PDT Fri Mar 26 2021

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

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

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

* WHEN...Until 3 AM 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.

&&

$$
112 
WHUS76 KEKA 271000
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
300 AM PDT Sat Mar 27 2021

PZZ470-271800-
/O.CAN.KEKA.SE.W.0021.000000T0000Z-210327T1300Z/
/O.EXB.KEKA.SC.Y.0037.000000T0000Z-210327T2200Z/
/O.NEW.KEKA.GL.A.0017.210329T1000Z-210331T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
300 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH TUESDAY
EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 30 kt and seas 7 to 10 feet. For the Gale 
  Watch, north winds 25 to 35 kt with gusts up to 45 kt and seas 
  12 to 17 feet possible.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-271800-
/O.EXP.KEKA.SE.W.0021.000000T0000Z-210327T1000Z/
/O.EXB.KEKA.SC.Y.0037.000000T0000Z-210327T2200Z/
/O.NEW.KEKA.GL.A.0017.210329T1000Z-210331T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
300 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM LATE SUNDAY NIGHT THROUGH TUESDAY
EVENING...

* WHAT...For the Small Craft Advisory, north winds 10 to 20 kt 
  with gusts up to 25 kt and seas 6 to 9 feet. For the Gale 
  Watch, north winds 30 to 40 kt with gusts up to 50 kt and seas 
  14 to 19 feet possible.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-271100-
/O.EXP.KEKA.SC.Y.0037.000000T0000Z-210327T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
300 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

PZZ450-271400-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T1400Z/
Pt St George to Cape Mendocino out 10 nm-
300 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PDT THIS
MORNING...

* WHAT...North winds 5 to 15 kt with gusts up to 25 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 7 AM PDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
355 
WHUS76 KEKA 271346
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
646 AM PDT Sat Mar 27 2021

PZZ450-271500-
/O.EXP.KEKA.SC.Y.0037.000000T0000Z-210327T1400Z/
Pt St George to Cape Mendocino out 10 nm-
646 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 AM PDT THIS MORNING...

$$

PZZ470-475-272200-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T2200Z/
/O.CON.KEKA.GL.A.0017.210329T1000Z-210331T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
646 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...For the Small Craft Advisory, north winds 10 to 20 kt 
  with gusts up to 30 kt and seas 7 to 10 feet. For the Gale 
  Watch, north winds 30 to 40 kt with gusts up to 50 kt and seas 
  13 to 18 feet possible.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
461 
WHUS76 KEKA 271546
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
846 AM PDT Sat Mar 27 2021

PZZ470-475-280000-
/O.CON.KEKA.SC.Y.0037.000000T0000Z-210327T2200Z/
/O.CON.KEKA.GL.A.0017.210329T1000Z-210331T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
846 AM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...For the Small Craft Advisory, north winds 10 to 20 kt and
  seas 7 to 9 feet. For the Gale Watch, north winds 30 to 40 kt 
  with gusts around 45 kt and seas 14 to 18 feet possible.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
257 
WHUS76 KEKA 272059
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
159 PM PDT Sat Mar 27 2021

PZZ450-280500-
/O.NEW.KEKA.SC.Y.0038.210329T0900Z-210329T2100Z/
/O.EXB.KEKA.GL.A.0017.210329T2100Z-210330T0600Z/
Pt St George to Cape Mendocino out 10 nm-
159 PM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM TO 2 PM PDT MONDAY...
...GALE WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY
EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 35 kt and seas 7 to 12 feet expected. For the 
  Gale Watch, north winds 25 to 35 kt with gusts up to 40 kt and 
  seas 8 to 12 feet possible.

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

* WHEN...For the Small Craft Advisory, from 2 AM to 2 PM PDT 
  Monday. For the Gale Watch, from Monday afternoon through 
  Monday evening.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-280500-
/O.NEW.KEKA.SC.Y.0038.210329T0400Z-210329T2100Z/
/O.EXB.KEKA.GL.A.0017.210329T2100Z-210330T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
159 PM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM SUNDAY TO 2 PM PDT
MONDAY...
...GALE WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH MONDAY
EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 35 kt and seas 4 to 7 feet expected. For the 
  Gale Watch, north winds 20 to 30 kt with gusts up to 40 kt and 
  seas 7 to 12 feet possible.

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

* WHEN...For the Small Craft Advisory, from 9 PM Sunday to 2 PM 
  PDT Monday. For the Gale Watch, from Monday afternoon through 
  Monday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-475-280500-
/O.EXT.KEKA.SC.Y.0037.000000T0000Z-210328T0100Z/
/O.CON.KEKA.GL.A.0017.210329T1000Z-210331T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
159 PM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WATCH REMAINS IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...For the Small Craft Advisory, north winds 10 to 15 kt 
  and seas 6 to 9 feet. For the Gale Watch, north winds 30 to 40 
  kt with gusts up to 45 kt and seas 13 to 18 feet possible.

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

* WHEN...For the Small Craft Advisory, until 6 PM PDT this 
  evening. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
402 
WHUS76 KEKA 272255
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
355 PM PDT Sat Mar 27 2021

PZZ470-280700-
/O.CAN.KEKA.SC.Y.0037.000000T0000Z-210328T0100Z/
/O.EXB.KEKA.SC.Y.0038.210329T0300Z-210329T0900Z/
/O.EXT.KEKA.GL.A.0017.210329T0900Z-210331T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
355 PM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 PM SUNDAY TO 2 AM PDT
MONDAY...
...GALE WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 30 kt and seas 4 to 6 feet expected. For the 
  Gale Watch, north winds 30 to 40 kt with gusts up to 50 kt and 
  seas 12 to 17 feet possible.

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

* WHEN...For the Small Craft Advisory, from 8 PM Sunday to 2 AM 
  PDT Monday. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-280700-
/O.NEW.KEKA.SC.Y.0039.210329T0600Z-210329T0900Z/
/O.CAN.KEKA.SC.Y.0038.210329T0900Z-210329T2100Z/
/O.EXT.KEKA.GL.A.0017.210329T0900Z-210331T0400Z/
Pt St George to Cape Mendocino out 10 nm-
355 PM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM SUNDAY TO 2 AM PDT
MONDAY...
...GALE WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 20 kt 
  with gusts up to 30 kt expected. For the Gale Watch, north 
  winds 25 to 35 kt with gusts up to 45 kt and seas 10 to 15 
  feet possible.

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

* WHEN...For the Small Craft Advisory, from 11 PM Sunday to 2 AM 
  PDT Monday. For the Gale Watch, from late Sunday night through 
  Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-280700-
/O.CAN.KEKA.SC.Y.0037.000000T0000Z-210328T0100Z/
/O.EXT.KEKA.GL.A.0017.210329T0900Z-210331T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
355 PM PDT Sat Mar 27 2021

...GALE WATCH NOW IN EFFECT FROM LATE SUNDAY NIGHT THROUGH
TUESDAY EVENING...

* WHAT...North winds 30 to 40 kt with gusts up to 50 kt and seas 
  13 to 18 feet possible.

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

* WHEN...From late Sunday night through Tuesday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-280700-
/O.EXT.KEKA.SC.Y.0038.210329T0900Z-210329T1500Z/
/O.EXT.KEKA.GL.A.0017.210329T1500Z-210330T1200Z/
Cape Mendocino to Pt Arena out 10 nm-
355 PM PDT Sat Mar 27 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 2 AM TO 8 AM PDT
MONDAY...
...GALE WATCH NOW IN EFFECT FROM MONDAY MORNING THROUGH LATE
MONDAY NIGHT...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 40 kt and seas 4 to 7 feet expected. For the 
  Gale Watch, north winds 25 to 35 kt with gusts up to 45 kt and 
  seas 8 to 13 feet possible.

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

* WHEN...For the Small Craft Advisory, from 2 AM to 8 AM PDT 
  Monday. For the Gale Watch, from Monday morning through late 
  Monday night.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 26, 2:41 AM PDTHazardous Seas WarningEKA24 hr
Mar 26, 2:32 PM PDTFrost AdvisoryEKAHumboldt, Lake, Mendocino18 hr

Nearby

Small Craft Advisories in California, 2021Every small craft advisory 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.