Small Craft Advisory 86, NWS Eureka, CA

065 
WHUS76 KEKA 192205
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
305 PM PDT Sat Aug 19 2023

PZZ470-200400-
/O.EXP.KEKA.GL.W.0036.000000T0000Z-230819T2200Z/
/O.EXT.KEKA.SE.W.0027.000000T0000Z-230820T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
305 PM PDT Sat Aug 19 2023

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...GALE WARNING HAS EXPIRED...

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

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

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

* 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.

&&

$$

PZZ475-200400-
/O.EXT.KEKA.SE.W.0027.000000T0000Z-230820T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
305 PM PDT Sat Aug 19 2023

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* WHAT...Very steep and hazardous seas 8 to 13 feet.

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

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

* 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.

&&

$$

PZZ450-200400-
/O.CON.KEKA.SC.Y.0086.000000T0000Z-230820T0400Z/
Pt St George to Cape Mendocino out 10 nm-
305 PM PDT Sat Aug 19 2023

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

* WHAT...Seas 6 to 8 feet.

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

&&

$$

808 
WHUS76 KEKA 200328
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
828 PM PDT Sat Aug 19 2023

PZZ470-475-201130-
/O.CAN.KEKA.SE.W.0027.000000T0000Z-230820T0400Z/
/O.EXB.KEKA.SC.Y.0086.000000T0000Z-230820T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
828 PM PDT Sat Aug 19 2023

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT SUNDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  6 to 11 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 PM PDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-201000-
/O.EXT.KEKA.SC.Y.0086.000000T0000Z-230820T1000Z/
Pt St George to Cape Mendocino out 10 nm-
828 PM PDT Sat Aug 19 2023

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

* WHAT...Seas 6 to 8 feet.

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

* WHEN...Until 3 AM PDT Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

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.

&&

$$

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.

&&

$$

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
525 AM PDT Sat Aug 19 2023

.SYNOPSIS...Interior temperatures will remain slightly above
normal through the weekend, then cool below normal early next
week. The threat of thunderstorms across mostly the interior will
persist today through Monday.

&&

.DISCUSSION...The persistent upper low off the central CA coast
continues to meander in the base of a larger scale trough that
extends S from British Columbia. However, the large upper high
over the S Plains remains entrenched. The smoke from wildfires
will keep temperatures across Del Norte and extreme NE Humboldt
counties fairly cool (68-76F for interior Del Norte and upper 80s
to mid 90's for NE Humboldt). The rest of the interior has been
above normal (mid to upper 90's). More cloud cover will knock
temperatures down some on Sunday, followed by greater cooling
and below normal temperatures early next week.

Scattered to isolated thunderstorms are expected again this
afternoon over the interior. Stronger south and southeast flow aloft
will support faster storm motions today compared to the last couple
of days. A couple of the convective allowing models depict decaying
storm cells approaching the Humboldt Bay area late this afternoon.

High precipitable water values (over 1 inch) will persist
today, however the lower atmosphere remains dry. With inverted-v
thermodynamic profiles expect high based storms with potential
for dry strikes and gusty outflow winds outside the main
precip cores.

The upper low will continue to tap into residual monsoonal moisture
from the S, as well as producing vorticity maxima that rotate
counter-clockwise around the broader circulation. This will
continue the threat of at least isolated afternoon and evening
thunderstorms on Sunday across mainly the interior and triggered
by daytime heat. There is a low potential for some nocturnal
storms late tonight into early Sunday morning for southern Lake
and southern Mendocino as the cut-off low begins eject eastward.
The exact coverage and timing storms will be complicated by
ongoing smoke in the area and model variability.

As we get into early next week, moisture from the remnants of Tropical
Cyclone Hilary is expected to spread N from S CA. Precipitable
water ramps up to 200% of normals, over 1 inch. Looking at the
ensemble distribution from the NBM, RAW ensemble probabilities
from the GEFS and ENS, there is a chance (30-50%) for some rain
on the order of 0.10 to 0.25 of an inch. On the limbs of the
distributions, there is a 2% chance for an inch or more in 12
hours. The chance for 0.01in or zero in 12 hours ranges from
41-75%. The bulk of the rain will be shunted east of our area.
Thick cloud cover may also inhibit the potential for storms and
deep convection in the interior.

&&

.AVIATION...Coastal marine stratus persist along the Mendocino
coastline, while low clouds redeveloped along the North Coast
overnight and is expected to bring a period of LIFR conditions to
ACV this morning. HREF suggest stratus eroding back to the coast
this afternoon, and bring mostly VFR condition at the coastal
terminals. LIFR ceiling will be possible to reach UKI this morning
with the southerly winds, but this will be for a brief
period..before VFR conditions redevelop. Expect another day with
thunderstorms activity across the interior mountains this afternoon
and early evening. This will spread mid-high level clouds toward the
coastal areas.  Additionally, active wildfires across NW California
will continue to create skies obscuration and hazy skies over mainly
Del Norte, Humboldt and Trinity counties. Winds from S-SE around 5
kt becoming W-SW around 5 to 15 kt in the afternoon along the coast.

&&

.MARINE...Strong to near gale N-NW winds have developed across the
outer waters, with gale force gust primarily over the northern outer
waters. Very steep, hazardous waves have developed in response to
the winds and will continue to propagate into the northern inner
waters through this morning. The Crescent City and Eel River Buoys
reported swells up to 11 feet early this morning. However, very
steep seas remains across the outer waters through late tonight.
Another round of gales and very steep seas is expected to develop
across the coastal waters late Sunday night and Monday, mainly
across the outer waters and northern inner waters.

&&

.FIRE WEATHER...We hoisted a red flag warning for abundant lightning
from 1 PM this afternoon to 8 PM this evening for fire weather
zones 204, 211, 212, 277 and 283. Storm coverage and lightning
activity level will be similar to the last couple of days with a
mix of wet and dry storms and the potential for more fire starts,
especially outside the main precip cores. In addition, gusty and
erratic outflow winds will fan existing fires. South-southeasterly
flow aloft will increase today compared to yesterday and mean
storm motion will be slightly faster. A few storms could spread
out toward the coast as well (20% chance), per a couple of the
convective allowing models. Temperatures will remain slightly
above normal through the weekend 90-100F. Areas with thick and
more persistent smoke will see below normal temperatures. Winds
for the remainder of the weekend will generally remain diurnally
driven under 10 mph, with stronger westerly breezes expected over
exposed ridges and in channeled terrain. Northerly and easterly
breezes with localized gusts to 25 mph over exposed terrain are
expected Sunday night.

An upstream trough will kick out the pesky cut-off low early next
week, namely on Tuesday. Remnant moisture from Hurricane Hilary
will spread northward late Sunday into Monday with PWATS ramping
up to 200% of normal. Expect scattered showers and possible
thunderstorms Sunday night and Monday, with the potential for some
wetting rain, mostly across the interior.

By Tuesday, westerly flow will increase aloft, however there are
significant differences from the GFS and ECMWF on how quickly
PWATS diminish and how fast the upstream trough progresses
eastward toward the California coast. Temperatures should
diminish below normal with generally stronger onshore winds and
a deeper marine air mass pushing into the river valleys. Some
showers will be possible on Thu if the faster GFS pans out. The
ECMWF is drier with broader ridging and warmer temperatures.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Red Flag Warning from 1 PM this afternoon to 8 PM PDT this
     evening for CAZ204-211-212-277-283.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Hazardous Seas Warning until 9 AM PDT this morning for
     PZZ450.

     Gale Warning until 3 PM PDT this afternoon for PZZ470.

     Hazardous Seas Warning from 3 PM this afternoon to 3 AM PDT
     Sunday for PZZ470.

     Hazardous Seas Warning until 3 AM PDT Sunday for PZZ475.

&&

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