Small Craft Advisory 89, NWS Eureka, CA

900 
WHUS76 KEKA 202154
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
254 PM PDT Wed Aug 20 2025

PZZ475-210600-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250821T2200Z/
/O.CON.KEKA.GL.W.0040.250821T2200Z-250822T0600Z/
/O.CON.KEKA.SC.Y.0089.250822T0600Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
254 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM TO 11 PM PDT
THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THURSDAY TO
11 AM PDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and seas 8 to 9 feet expected. For the first 
  Small Craft Advisory, northwest winds 20 to 25 kt with gusts 
  up to 35 kt and seas 6 to 8 feet. For the second Small Craft 
  Advisory, north winds 15 to 25 kt with gusts up to 30 kt and 
  seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, from 3 PM to 11 PM PDT Thursday. 
  For the Small Craft Advisory, until 3 PM PDT Thursday. For the 
  Small Craft Advisory, from 11 PM Thursday to 11 AM PDT 
  Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-210600-
/O.CON.KEKA.SC.Y.0088.250821T2200Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
254 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THURSDAY TO
5 AM PDT FRIDAY...

* WHAT...Seas 5 to 7 feet expected.

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

* WHEN...From 3 PM Thursday to 5 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-210600-
/O.CON.KEKA.SC.Y.0088.250820T2300Z-250822T0900Z/
Cape Mendocino to Pt Arena out 10 nm-
254 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and 
  seas 5 to 8 feet expected.

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

* WHEN...Until 2 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-210600-
/O.CON.KEKA.SC.Y.0088.250821T0600Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
254 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM PDT SATURDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 10 feet expected.

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

* WHEN...From 11 PM this evening to 11 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.

&&

$$

272 
WHUS76 KEKA 210519
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1019 PM PDT Wed Aug 20 2025

PZZ475-211330-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250821T2200Z/
/O.CON.KEKA.GL.W.0040.250821T2200Z-250822T0600Z/
/O.CON.KEKA.SC.Y.0089.250822T0600Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1019 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT
THURSDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM TO 11 PM PDT
THURSDAY...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THURSDAY TO
11 AM PDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and seas 8 to 9 feet expected. For the first 
  Small Craft Advisory, northwest winds 20 to 25 kt with gusts 
  up to 30 kt and seas 6 to 8 feet. For the second Small Craft 
  Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt 
  and seas 6 to 9 feet expected.

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

* WHEN...For the Gale Warning, from 3 PM to 11 PM PDT Thursday. 
  For the Small Craft Advisory, until 3 PM PDT Thursday. For the 
  Small Craft Advisory, from 11 PM Thursday to 11 AM PDT 
  Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-211330-
/O.CON.KEKA.SC.Y.0088.250821T2200Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
1019 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THURSDAY TO
5 AM PDT FRIDAY...

* WHAT...Seas 5 to 7 feet expected.

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

* WHEN...From 3 PM Thursday to 5 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-211330-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T0900Z/
Cape Mendocino to Pt Arena out 10 nm-
1019 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 40 kt and 
  seas 5 to 8 feet.

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

* WHEN...Until 2 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-211330-
/O.CON.KEKA.SC.Y.0088.250821T0600Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1019 PM PDT Wed Aug 20 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 10 feet expected.

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

* WHEN...Until 11 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.

&&

$$

376 
WHUS76 KEKA 211022
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
322 AM PDT Thu Aug 21 2025

PZZ475-211830-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250821T2200Z/
/O.CON.KEKA.GL.W.0040.250821T2200Z-250822T0600Z/
/O.CON.KEKA.SC.Y.0089.250822T0600Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
322 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
11 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM PDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with
  gusts to 35 kt and seas 8 to 9 feet expected. For the first
  Small Craft Advisory, northwest winds 20 to 25 kt with gusts to
  30 kt and seas 6 to 8 feet. For the second Small Craft Advisory,
  northwest winds 15 to 25 kt with gusts to 30 kt and seas 6 to 9
  feet expected.

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

* WHEN...For the Gale Warning, from 3 PM this afternoon to 11 PM 
  PDT this evening. For the Small Craft Advisory, until 3 PM PDT 
  this afternoon. For the Small Craft Advisory, from 11 PM this 
  evening to 11 AM PDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-211830-
/O.CON.KEKA.SC.Y.0088.250821T2200Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
322 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 5 AM PDT FRIDAY...

* WHAT...Seas 5 to 7 feet expected.

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

* WHEN...From 3 PM this afternoon to 5 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-211830-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T0900Z/
Cape Mendocino to Pt Arena out 10 nm-
322 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with localized gusts to 40 
  kt and seas 5 to 8 feet.

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

* WHEN...Until 2 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-211830-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
322 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 15 to 25 kt with gusts to 30 kt and seas 7 
  to 10 feet.

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

* WHEN...Until 11 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.

&&

$$

247 
WHUS76 KEKA 211817
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1117 AM PDT Thu Aug 21 2025

PZZ475-220230-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250821T2200Z/
/O.CON.KEKA.GL.W.0040.250821T2200Z-250822T0600Z/
/O.CON.KEKA.SC.Y.0089.250822T0600Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1117 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
11 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM PDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and seas 8 to 10 feet expected. For the 
  first Small Craft Advisory, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and seas around 8 feet. For the second Small 
  Craft Advisory, northwest winds 15 to 25 kt with gusts up to 
  30 kt and seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, from 3 PM this afternoon to 11 PM 
  PDT this evening. For the Small Craft Advisory, until 3 PM PDT 
  this afternoon. For the Small Craft Advisory, from 11 PM this 
  evening to 11 AM PDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-220230-
/O.CON.KEKA.SC.Y.0088.250821T2200Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
1117 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 5 AM PDT FRIDAY...

* WHAT...Seas 5 to 7 feet expected.

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

* WHEN...From 3 PM this afternoon to 5 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-220230-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T0900Z/
Cape Mendocino to Pt Arena out 10 nm-
1117 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT FRIDAY...

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

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

* WHEN...Until 2 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-220230-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1117 AM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 10 feet.

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

* WHEN...Until 11 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.

&&

$$

633 
WHUS76 KEKA 212232
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
332 PM PDT Thu Aug 21 2025

PZZ475-220645-
/O.CON.KEKA.GL.W.0040.000000T0000Z-250822T0600Z/
/O.CON.KEKA.SC.Y.0089.250822T0600Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
332 PM PDT Thu Aug 21 2025

...GALE WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM THIS EVENING
TO 11 AM PDT SATURDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 35 kt and seas 8 to 10 feet. For the Small Craft 
  Advisory, northwest winds 15 to 25 kt with gusts up to 30 kt 
  and seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, until 11 PM PDT this evening. For 
  the Small Craft Advisory, from 11 PM this evening to 11 AM PDT 
  Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-220645-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
332 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY...

* WHAT...Seas 5 to 7 feet.

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

* WHEN...Until 5 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-220645-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T0900Z/
Cape Mendocino to Pt Arena out 10 nm-
332 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM PDT FRIDAY...

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

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

* WHEN...Until 2 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-220645-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
332 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  7 to 10 feet.

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

* WHEN...Until 11 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.

&&

$$

234 
WHUS76 KEKA 220544
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1044 PM PDT Thu Aug 21 2025

PZZ475-221345-
/O.EXP.KEKA.GL.W.0040.000000T0000Z-250822T0600Z/
/O.CON.KEKA.SC.Y.0089.250822T0600Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1044 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...
...GALE WARNING WILL EXPIRE AT 11 PM PDT THIS EVENING...

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

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

* WHEN...Until 11 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.

&&

$$

PZZ455-221345-
/O.EXT.KEKA.SC.Y.0088.000000T0000Z-250822T1800Z/
Cape Mendocino to Pt Arena out 10 nm-
1044 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 35 kt and 
  seas 5 to 8 feet.

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

* WHEN...Until 11 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-221200-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
1044 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT FRIDAY...

* WHAT...Seas 4 to 6 feet.

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

* WHEN...Until 5 AM PDT Friday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-221345-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1044 PM PDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 15 to 25 kt and seas 5 to 8 feet.

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

* WHEN...Until 11 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.

&&

$$

359 
WHUS76 KEKA 221003
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
303 AM PDT Fri Aug 22 2025

PZZ450-221200-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T1200Z/
Pt St George to Cape Mendocino out 10 nm-
303 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 AM PDT EARLY
THIS MORNING...

* WHAT...Steep seas up to 6 feet.

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

* WHEN...Until 5 AM PDT early 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.

&&

$$

PZZ455-221800-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250822T1800Z/
Cape Mendocino to Pt Arena out 10 nm-
303 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING...

* WHAT...Northwest winds 10 to 20 kt with gusts to 25 kt and seas
  5 to 8 feet.

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

* WHEN...Until 11 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.

&&

$$

PZZ470-221815-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
303 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 10 to 20 kt with gusts to 25 kt and seas 5 
  to 8 feet.

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

* WHEN...Until 11 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.

&&

$$

PZZ475-221815-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
303 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts to 30 kt and seas
  6 to 8 feet.

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

* WHEN...Until 11 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.

&&

$$

318 
WHUS76 KEKA 221700
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1000 AM PDT Fri Aug 22 2025

PZZ455-221800-
/O.CAN.KEKA.SC.Y.0088.000000T0000Z-250822T1800Z/
Cape Mendocino to Pt Arena out 10 nm-
1000 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

PZZ470-230100-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1000 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 5 to 15 kt and seas 4 to 7 feet.

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

* WHEN...Until 11 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.

&&

$$

PZZ475-230100-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1000 AM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 5 to 8 feet.

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

* WHEN...Until 11 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.

&&

$$

860 
WHUS76 KEKA 222153
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
253 PM PDT Fri Aug 22 2025

PZZ470-230600-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
253 PM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 5 to 15 kt and seas 4 to 7 feet.

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

* WHEN...Until 11 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.

&&

$$

PZZ475-230600-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-250823T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
253 PM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 5 to 7 feet.

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

* WHEN...Until 11 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.

&&

$$

127 
WHUS76 KEKA 230512
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1012 PM PDT Fri Aug 22 2025

PZZ475-231315-
/O.EXT.KEKA.SC.Y.0089.000000T0000Z-250823T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1012 PM PDT Fri Aug 22 2025

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

* WHAT...North winds 15 to 20 kt with gusts up to 25 kt and seas 
  5 to 8 feet.

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

* WHEN...Until 3 PM PDT Saturday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-231315-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1012 PM PDT Fri Aug 22 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT
SATURDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 
  5 to 7 feet.

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

* WHEN...Until 11 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.

&&

$$

509 
WHUS76 KEKA 231016
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
316 AM PDT Sat Aug 23 2025

PZZ470-231800-
/O.CON.KEKA.SC.Y.0088.000000T0000Z-250823T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
316 AM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM PDT THIS
MORNING...

* WHAT...North winds 10 to 20 kt with gusts to 25 kt and seas 5 
  to 7 feet.

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

* WHEN...Until 11 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.

&&

$$

PZZ475-231830-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-250823T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
316 AM PDT Sat Aug 23 2025

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

* WHAT...Northwest winds 15 to 20 kt with gusts to 25 kt and seas
  5 to 7 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

596 
WHUS76 KEKA 231649
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
949 AM PDT Sat Aug 23 2025

PZZ470-240100-
/O.EXT.KEKA.SC.Y.0088.000000T0000Z-250823T1700Z/
/O.NEW.KEKA.SC.Y.0090.250825T0600Z-250826T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
949 AM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM SUNDAY TO 3 AM PDT 
TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 5
  to 8 feet.

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

* WHEN...11 PM Sunday to 3 AM 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.

&&

$$

PZZ475-240100-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-250823T2200Z/
/O.NEW.KEKA.SC.Y.0090.250825T0600Z-250826T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
949 AM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT FROM 11 PM SUNDAY TO 3 AM PDT
TUESDAY...

* WHAT...For the first Small Craft Advisory, northwest winds 10 
  to 20 kt with gusts up to 25 kt and seas 6 to 7 feet. For the 
  second Small Craft Advisory, north winds 15 to 25 kt with 
  gusts up to 30 kt and seas 5 to 8 feet expected.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Small Craft Advisory, from 11 PM Sunday to 
  3 AM 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.

&&

$$

954 
WHUS76 KEKA 231653
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
953 AM PDT Sat Aug 23 2025

PZZ470-240100-
/O.EXP.KEKA.SC.Y.0088.000000T0000Z-250823T1700Z/
/O.CON.KEKA.SC.Y.0090.250825T0600Z-250826T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
953 AM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM SUNDAY TO
3 AM PDT TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  5 to 8 feet expected.

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

* WHEN...From 11 PM Sunday to 3 AM 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.

&&

$$

PZZ475-240100-
/O.CON.KEKA.SC.Y.0089.000000T0000Z-250823T2200Z/
/O.CON.KEKA.SC.Y.0090.250825T0600Z-250826T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
953 AM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM SUNDAY TO
3 AM PDT TUESDAY...

* WHAT...For the first Small Craft Advisory, northwest winds 10 
  to 20 kt with gusts up to 25 kt and seas 6 to 7 feet. For the 
  second Small Craft Advisory, north winds 15 to 25 kt with 
  gusts up to 30 kt and seas 5 to 8 feet expected.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Small Craft Advisory, from 11 PM Sunday to 
  3 AM 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.

&&

$$

462 
WHUS76 KEKA 232146
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
246 PM PDT Sat Aug 23 2025

PZZ475-240600-
/O.EXP.KEKA.SC.Y.0089.000000T0000Z-250823T2200Z/
/O.CON.KEKA.SC.Y.0090.250825T0600Z-250826T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
246 PM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM SUNDAY TO
3 AM PDT TUESDAY...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  5 to 8 feet expected.

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

* WHEN...From 11 PM Sunday to 3 AM 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.

&&

$$

PZZ470-240600-
/O.CON.KEKA.SC.Y.0090.250825T0600Z-250826T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
246 PM PDT Sat Aug 23 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 PM SUNDAY TO
3 AM PDT TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  5 to 8 feet expected.

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

* WHEN...From 11 PM Sunday to 3 AM 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.

&&

$$

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
1200 AM PDT Wed Aug 20 2025

.SYNOPSIS...Hot and very dry weather will build in through the week
with a shallower and stronger marine layer along the coast. There is
very slight potential for thunderstorms over the interior this
weekend into early next week.

&&

.DISCUSSION...Over the past few days a shortwave trough
lingering along the Pacific Northwest coast has allowed for cooler
than normal temperatures across the interior and for a weak, easy to
clear marine layer along the coast.

Conditions will gradually but starkly change through the week as
strong high pressure begins to stretch across from the 4 corners
region. Interior highs will most likely return to near 100 by
Thursday and peak between 105 and 110 by either Friday or Saturday.
Though not quite record breaking, it's getting late in the season
for such hot temperatures. Daytime heat, combined with enhanced
overnight lows in the mid 60s will combine to generate generally
moderate to localized major (in the Trinity River Valley and Russian
River Valley mostly) HeatRisk.

High pressure will generally promote a shallow but more resilient
marine layer along the coast, likely encouraging a stronger deck of
marine stratus late in the week, especially with more persistent
onshore flow. That said, a weakening in the wind may allow for some
hotter air to creep closer to the coast this weekend with slight
potential (25% chance) for coastal highs near 70 on Saturday. Most
model ensembles show high pressure slowly weakening early next week.
/JHW

&&

.AVIATION...Stratus remains along the coast north of Cape Mendocino
this morning. This is expected generally remain in or very near KCEC
and KACV. It appears to be expanding, but there is some offshore
flow developing which could push it offshore again this morning.
Confidence is very low on this so have left them LIFR overnight.
later this morning the inversion is still fairly weak and should
allow for some decent clearing this afternoon. There is also
expected to be some gusty winds of 10 to 20 along the coast and that
may help clear skies out as well. Tonight stratus is more uncertain
on it's return and how quickly this will occur. The HREF shows KCEC
remain clearing overnight, but low clouds returning quickly at KACV.
MKK

&&

.MARINE...High pressure is building into the area this morning.
Northerly winds are expected to continue to strengthen over the next
several days. One of the lower confidence parts of the forecast is
how close these stronger winds will get to shore. For now the hires
models are showing them mainly beyond 5 NM from much of the area
north of Cape Mendocino. So have not added a small craft advisory
to the northern inner waters, but as it gets closer this could be
needed. South of Cape Mendocino it looks like they may move in
closer to the coast by Wednesday afternoon and linger overnight. So
have added a small craft advisory for the southern inner waters.

The winds are expected to continue to increase and likely peak on
Thursday around 20 to 25 kt. There will be some gusts to 35 kt, but
at this point it doesn't seem like a gale warning will be needed.
This could change as we get more into the range of HIRES models.

Waves are currently dominated by a 3 to 4 foot wave at 10 seconds.
This is expected to diminish and get absorbed into the other wave by
Wednesday night. This afternoon a small southwest wave around 15
seconds is expected to move into the waters, but is expected to peak
around 2 feet and linger through the weekend. MKK

&&

.FIRE WEATHER...Building hot and very dry weather over the next
several days will generally increase fire danger and dry fuels back
out after several days of relief. Though light rain last weekend was
enough to moisten fine fuels, live and larger fuels continue to be
near peak dryness for all interior areas. RH late this week will
drop to some of the lowest of the season so far with some single
digit minimum RH possible in the feat eastern interior.

Beyond hot and dry weather, the main concerns will be for potential
thunderstorms late in the week and this weekend. Heat will greatly
increase surface instability, but moisture will generally be lacking
to generate thunderstorms. By around Sunday, there is some
indication of monsoon moisture wrapping around and up into the
Central Valley, but the general pattern will be much more conducive
to storms over the central Sierras (20% chance there) rather than NW
California (only 5% thunder chance here). There is some potential
for a more concerning pattern around next Monday with moisture
possibly wrapping back out to the coast. This potential will have to
be watched closely. /JHW

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Heat Advisory from 11 AM Friday to 11 PM PDT Saturday for
     CAZ105-106-110-113.

     Heat Advisory from 11 AM Thursday to 11 PM PDT Saturday for
     CAZ107-108-111-114-115.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory from 4 PM Wednesday to 2 AM PDT Friday
     for PZZ455.

     Small Craft Advisory from 11 PM Wednesday to 10 PM PDT
     Friday for PZZ470.

     Small Craft Advisory until 4 AM PDT Saturday for PZZ475.

&&

NOTE: The full forecast discussion is now regularly issued between
10 am/pm and 1 pm/am. Additional updates will be issued as needed.

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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png