Alert archive / California / Hazardous Seas Warnings in 2021

Hazardous Seas Warning 50, NWS Eureka, CA

August 28, 2021

NWS Eureka, CA issued this hazardous seas warning at Aug 28, 2021, 2:29 AM PDT. It took effect at Aug 28, 2021, 12:00 PM PDT. It was in force for 49 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 28, 2021, 2:29 AM PDT (09:29 UTC)
In effect from
Aug 28, 2021, 12:00 PM PDT
Expired
Aug 30, 2021, 1:00 PM PDT
In force
49 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

857 
WHUS76 KEKA 280929
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
229 AM PDT Sat Aug 28 2021

PZZ470-281730-
/O.EXT.KEKA.GL.W.0040.000000T0000Z-210829T1900Z/
/O.NEW.KEKA.SE.W.0050.210829T1900Z-210830T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
229 AM PDT Sat Aug 28 2021

...GALE WARNING NOW IN EFFECT UNTIL NOON PDT SUNDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM NOON SUNDAY TO 3 AM PDT
MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 11 to 16 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 10 to 13 feet 
  expected.

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

* WHEN...For the Gale Warning, until noon PDT Sunday. For the 
  Hazardous Seas Warning, from noon Sunday to 3 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.

&&

$$

PZZ475-281730-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210828T1900Z/
/O.NEW.KEKA.SE.W.0050.210828T1900Z-210829T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
229 AM PDT Sat Aug 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM NOON TODAY TO 3 PM PDT
SUNDAY...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with 
  gusts up to 40 kt and seas 11 to 15 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 noon PDT today. For the 
  Hazardous Seas Warning, from noon today to 3 PM 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.

&&

$$

PZZ450-281730-
/O.EXT.KEKA.SE.W.0048.000000T0000Z-210828T1000Z/
/O.NEW.KEKA.SC.Y.0089.210828T1000Z-210830T1000Z/
Pt St George to Cape Mendocino out 10 nm-
229 AM PDT Sat Aug 28 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 3 AM PDT EARLY THIS
MORNING...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT MONDAY...

* WHAT...For the Hazardous Seas Warning, very steep and hazardous
  seas 9 to 11 feet. For the Small Craft Advisory, north winds 10
  to 20 kt with gusts up to 40 kt around Pt St George and seas 7 
  to 10 feet expected.

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

* WHEN...For the Hazardous Seas Warning, until 3 AM PDT early 
  this morning. For the Small Craft Advisory, until 3 AM 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.

&&

$$

PZZ455-281730-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-210830T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
229 AM PDT Sat Aug 28 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt around
  Cape Mendocino and seas 7 to 10 feet.

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

* WHEN...Until 3 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.

&&

$$
10 follow-up statements
446 
WHUS76 KEKA 281545
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
845 AM PDT Sat Aug 28 2021

PZZ470-282345-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210829T1900Z/
/O.CON.KEKA.SE.W.0050.210829T1900Z-210830T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
845 AM PDT Sat Aug 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
3 AM PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 40 kt and seas 11 to 16 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 10 to 13 feet 
  expected.

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

* WHEN...For the Gale Warning, until noon PDT Sunday. For the 
  Hazardous Seas Warning, from noon Sunday to 3 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.

&&

$$

PZZ475-282345-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210828T1900Z/
/O.CON.KEKA.SE.W.0050.210828T1900Z-210829T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
845 AM PDT Sat Aug 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM NOON TODAY TO
3 PM PDT SUNDAY...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with 
  gusts up to 35 kt and seas 10 to 15 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 noon PDT today. For the 
  Hazardous Seas Warning, from noon today to 3 PM 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.

&&

$$

PZZ450-282345-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210830T1000Z/
Pt St George to Cape Mendocino out 10 nm-
845 AM PDT Sat Aug 28 2021

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

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

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

* WHEN...Until 3 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.

&&

$$

PZZ455-282345-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210830T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
845 AM PDT Sat Aug 28 2021

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

* WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and 
  seas 7 to 10 feet.

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

* WHEN...Until 3 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.

&&

$$
475 
WHUS76 KEKA 282143
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
243 PM PDT Sat Aug 28 2021

PZZ475-290545-
/O.EXT.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
243 PM PDT Sat Aug 28 2021

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

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

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ470-290545-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210829T1900Z/
/O.CON.KEKA.SE.W.0050.210829T1900Z-210830T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
243 PM PDT Sat Aug 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
3 AM PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 10 to 15 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 9 to 12 feet 
  expected.

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

* WHEN...For the Gale Warning, until noon PDT Sunday. For the 
  Hazardous Seas Warning, from noon Sunday to 3 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.

&&

$$

PZZ450-290545-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210830T1000Z/
Pt St George to Cape Mendocino out 10 nm-
243 PM PDT Sat Aug 28 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 40 kt and 
  seas 7 to 10 feet.

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

* WHEN...Until 3 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.

&&

$$

PZZ455-290545-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210830T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
243 PM PDT Sat Aug 28 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 35 kt and 
  seas 5 to 8 feet.

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

* WHEN...Until 3 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.

&&

$$
667 
WHUS76 KEKA 290330
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
830 PM PDT Sat Aug 28 2021

PZZ470-291130-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210829T1900Z/
/O.CON.KEKA.SE.W.0050.210829T1900Z-210830T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
830 PM PDT Sat Aug 28 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
3 AM PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 10 to 15 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 9 to 12 feet 
  expected.

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

* WHEN...For the Gale Warning, until noon PDT Sunday. For the 
  Hazardous Seas Warning, from noon Sunday to 3 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.

&&

$$

PZZ475-291130-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
830 PM PDT Sat Aug 28 2021

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

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

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

* WHEN...Until 3 AM 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.

&&

$$

PZZ450-291130-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210830T1000Z/
Pt St George to Cape Mendocino out 10 nm-
830 PM PDT Sat Aug 28 2021

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

* WHAT...North winds 5 to 15 kt with gusts up to 35 kt and seas 
  7 to 10 feet.

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

* WHEN...Until 3 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.

&&

$$

PZZ455-291130-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210830T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
830 PM PDT Sat Aug 28 2021

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

* WHAT...Northwest winds 10 to 20 kt with localized gusts up to 
  35 kt and seas 5 to 8 feet.

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

* WHEN...Until 3 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.

&&

$$
130 
WHUS76 KEKA 290903
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
203 AM PDT Sun Aug 29 2021

PZZ475-291715-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
/O.NEW.KEKA.GL.W.0041.210830T1000Z-210831T0600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
203 AM PDT Sun Aug 29 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PDT
MONDAY...
...GALE WARNING IN EFFECT FROM 3 AM TO 11 PM PDT MONDAY...

* WHAT...For the Gale Warning, north winds 25 to 30 kt with 
  gusts up to 40 kt and seas 10 to 13 feet expected. For the 
  Hazardous Seas Warning, very steep and hazardous seas 8 to 13 
  feet.

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

* WHEN...For the Gale Warning, from 3 AM to 11 PM PDT Monday. 
  For the Hazardous Seas Warning, until 3 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.

&&

$$

PZZ470-291715-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210829T1900Z/
/O.CON.KEKA.SE.W.0050.210829T1900Z-210830T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
203 AM PDT Sun Aug 29 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM NOON TODAY TO
3 AM PDT MONDAY...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with 
  gusts up to 35 kt and seas 10 to 15 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 9 to 12 feet 
  expected.

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

* WHEN...For the Gale Warning, until noon PDT today. For the 
  Hazardous Seas Warning, from noon today to 3 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.

&&

$$

PZZ450-291715-
/O.EXT.KEKA.SC.Y.0089.000000T0000Z-210901T0600Z/
Pt St George to Cape Mendocino out 10 nm-
203 AM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT TUESDAY...

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

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-291715-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-210901T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
203 AM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 PM PDT TUESDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 6 to 11 feet.

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
134 
WHUS76 KEKA 291556
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
856 AM PDT Sun Aug 29 2021

PZZ470-300000-
/O.CON.KEKA.GL.W.0040.000000T0000Z-210829T1900Z/
/O.EXT.KEKA.SE.W.0050.210829T1900Z-210830T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
856 AM PDT Sun Aug 29 2021

...GALE WARNING REMAINS IN EFFECT UNTIL NOON PDT TODAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM NOON TODAY TO 1 PM
PDT MONDAY...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with 
  gusts up to 35 kt and seas 10 to 14 feet. For the Hazardous 
  Seas Warning, very steep and hazardous seas 9 to 12 feet 
  expected.

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

* WHEN...For the Gale Warning, until noon PDT today. For the 
  Hazardous Seas Warning, from noon today to 1 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.

&&

$$

PZZ475-300000-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
/O.CON.KEKA.GL.W.0041.210830T1000Z-210831T0600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
856 AM PDT Sun Aug 29 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PDT
MONDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 11 PM PDT MONDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 8 to 12 feet. For the Gale Warning, north winds 
  25 to 30 kt with gusts up to 40 kt and seas 10 to 13 feet 
  expected.

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

* WHEN...For the Hazardous Seas Warning, until 3 AM PDT Monday. 
  For the Gale Warning, from 3 AM to 11 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.

&&

$$

PZZ450-300000-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210901T0600Z/
Pt St George to Cape Mendocino out 10 nm-
856 AM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...

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

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-300000-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210901T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
856 AM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 6 to 11 feet.

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
687 
WHUS76 KEKA 292146
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
246 PM PDT Sun Aug 29 2021

PZZ475-300600-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
/O.CON.KEKA.GL.W.0041.210830T1000Z-210831T0600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
246 PM PDT Sun Aug 29 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PDT
MONDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 11 PM PDT MONDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 8 to 12 feet. For the Gale Warning, north winds 
  25 to 30 kt with gusts up to 40 kt and seas 10 to 13 feet 
  expected.

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

* WHEN...For the Hazardous Seas Warning, until 3 AM PDT Monday. 
  For the Gale Warning, from 3 AM to 11 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.

&&

$$

PZZ470-300600-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
246 PM PDT Sun Aug 29 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 PM PDT
MONDAY...

* WHAT...Very steep and hazardous seas 9 to 11 feet.

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

* WHEN...Until 1 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.

&&

$$

PZZ450-300600-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210901T0600Z/
Pt St George to Cape Mendocino out 10 nm-
246 PM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 45 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-300600-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210901T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
246 PM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 40 kt and 
  seas 7 to 10 feet.

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
196 
WHUS76 KEKA 300309
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
809 PM PDT Sun Aug 29 2021

PZZ475-301115-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
/O.CON.KEKA.GL.W.0041.210830T1000Z-210831T0600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
809 PM PDT Sun Aug 29 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PDT
MONDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 11 PM PDT MONDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 8 to 12 feet. For the Gale Warning, north winds 
  25 to 30 kt with gusts up to 40 kt and seas 10 to 13 feet 
  expected.

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

* WHEN...For the Hazardous Seas Warning, until 3 AM PDT Monday. 
  For the Gale Warning, from 3 AM to 11 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.

&&

$$

PZZ470-301115-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
809 PM PDT Sun Aug 29 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 PM PDT
MONDAY...

* WHAT...Very steep and hazardous seas 9 to 11 feet.

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

* WHEN...Until 1 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.

&&

$$

PZZ450-301115-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210901T0600Z/
Pt St George to Cape Mendocino out 10 nm-
809 PM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-301115-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210901T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
809 PM PDT Sun Aug 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 PM PDT
TUESDAY...

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  seas 7 to 10 feet.

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

* WHEN...Until 11 PM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
146 
WHUS76 KEKA 300903
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
203 AM PDT Mon Aug 30 2021

PZZ475-301715-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T1000Z/
/O.EXT.KEKA.GL.W.0041.210830T1000Z-210901T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
203 AM PDT Mon Aug 30 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PDT EARLY
THIS MORNING...
...GALE WARNING NOW IN EFFECT UNTIL 3 AM PDT WEDNESDAY...

* WHAT...For the Gale Warning, north winds 25 to 30 kt with 
  gusts up to 40 kt and seas 9 to 12 feet expected. For the 
  Hazardous Seas Warning, very steep and hazardous seas 10 to 12 
  feet.

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

* WHEN...For the Gale Warning, until 3 AM PDT Wednesday. For the 
  Hazardous Seas Warning, until 3 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.

&&

$$

PZZ470-301715-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
203 AM PDT Mon Aug 30 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON...

* WHAT...Very steep and hazardous seas 9 to 11 feet.

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

* WHEN...Until 1 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.

&&

$$

PZZ450-301715-
/O.EXT.KEKA.SC.Y.0089.000000T0000Z-210902T0400Z/
Pt St George to Cape Mendocino out 10 nm-
203 AM PDT Mon Aug 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT WEDNESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 40 kt and seas 
  6 to 9 feet.

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

* WHEN...Until 9 PM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-301715-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-210901T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
203 AM PDT Mon Aug 30 2021

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

* WHAT...Northwest winds 15 to 25 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 Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
782 
WHUS76 KEKA 301535
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
835 AM PDT Mon Aug 30 2021

PZZ475-302345-
/O.CON.KEKA.GL.W.0041.000000T0000Z-210901T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
835 AM PDT Mon Aug 30 2021

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

* WHAT...North winds 25 to 30 kt with gusts up to 40 kt and seas 
  9 to 13 feet.

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

* WHEN...Until 3 AM PDT Wednesday.

* 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.

&&

$$

PZZ470-302000-
/O.CON.KEKA.SE.W.0050.000000T0000Z-210830T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
835 AM PDT Mon Aug 30 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON...

* WHAT...Very steep and hazardous seas 9 to 12 feet. North winds 
  18 to 25 kts, gusts in the low 30s.

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

* WHEN...Until 1 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.

&&

$$

PZZ450-302345-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210902T0400Z/
Pt St George to Cape Mendocino out 10 nm-
835 AM PDT Mon Aug 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
WEDNESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 40 kt and seas 
  6 to 10 feet.

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

* WHEN...Until 9 PM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-302345-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210901T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
835 AM PDT Mon Aug 30 2021

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

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 7 to 11 feet.

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

* WHEN...Until 3 PM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
406 
WHUS76 KEKA 301940
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1240 PM PDT Mon Aug 30 2021

PZZ470-310345-
/O.EXP.KEKA.SE.W.0050.000000T0000Z-210830T2000Z/
/O.NEW.KEKA.SC.Y.0090.210830T2000Z-210831T1500Z/
/O.EXB.KEKA.GL.W.0041.210831T1500Z-210901T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1240 PM PDT Mon Aug 30 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 AM PDT TUESDAY...
...GALE WARNING IN EFFECT FROM 8 AM TUESDAY TO 3 PM PDT
WEDNESDAY...
...HAZARDOUS SEAS WARNING WILL EXPIRE AT 1 PM PDT THIS
AFTERNOON...

* WHAT...For the Gale Warning, north winds 20 to 30 kt with 
  gusts up to 40 kt and seas 8 to 13 feet expected. For the 
  Small Craft Advisory, north winds 20 to 25 kt with gusts up to 
  35 kt and seas 7 to 11 feet expected.

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

* WHEN...For the Gale Warning, from 8 AM Tuesday to 3 PM PDT 
  Wednesday. For the Small Craft Advisory, until 8 AM PDT 
  Tuesday.

* 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.

&&

$$

PZZ475-310345-
/O.CON.KEKA.GL.W.0041.000000T0000Z-210901T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1240 PM PDT Mon Aug 30 2021

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

* WHAT...North winds 25 to 30 kt with gusts up to 40 kt and seas 
  8 to 13 feet.

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

* WHEN...Until 3 AM PDT Wednesday.

* 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.

&&

$$

PZZ450-310345-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-210902T0400Z/
Pt St George to Cape Mendocino out 10 nm-
1240 PM PDT Mon Aug 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT
WEDNESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 40 kt and seas 
  7 to 10 feet.

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

* WHEN...Until 9 PM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-310345-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-210901T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
1240 PM PDT Mon Aug 30 2021

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

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  seas 7 to 11 feet.

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

* WHEN...Until 3 PM PDT Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 28, 2:29 AM PDTSmall Craft AdvisoryEKA6 days

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.