Alert archive / California / Small Craft Advisories in 2020

Small Craft Advisory 20, NWS Eureka, CA

March 9, 2020

NWS Eureka, CA issued this small craft advisory at Mar 9, 2020, 2:35 AM PDT. It took effect at Mar 10, 2020, 12:00 AM PDT. It was in force for 51 hr.

The area

The counties it named.

The facts

Issued
Mar 9, 2020, 2:35 AM PDT (09:35 UTC)
In effect from
Mar 10, 2020, 12:00 AM PDT
Expired
Mar 12, 2020, 3:19 AM PDT
In force
51 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

323 
WHUS76 KEKA 090935
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
235 AM PDT Mon Mar 9 2020

PZZ475-091745-
/O.NEW.KEKA.SC.Y.0020.200310T0700Z-200311T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
235 AM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PDT WEDNESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 6
  to 8 feet building to 8 to 10 feet Tuesday night.

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

* WHEN...From midnight tonight to 9 AM 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.

&&

$$

PZZ470-091745-
/O.NEW.KEKA.SC.Y.0020.200310T1000Z-200311T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
235 AM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 3 AM TUESDAY TO 9 AM PDT
WEDNESDAY...

* WHAT...North winds 15 to 25 kt. Localized gusts up to 35 kt
  developing on Tuesday. N seas 6 to 8 feet building to 8 to 11 
  feet Tuesday night. 

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

* WHEN...From 3 AM Tuesday to 9 AM 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.

&&

$$
12 follow-up statements
065 
WHUS76 KEKA 091529
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
829 AM PDT Mon Mar 9 2020

PZZ475-092330-
/O.CON.KEKA.SC.Y.0020.200310T0700Z-200311T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
829 AM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 9 AM PDT WEDNESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 
  6 to 8 feet building to 8 to 10 feet Tuesday night.

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

* WHEN...From midnight tonight to 9 AM 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.

&&

$$

PZZ470-092330-
/O.CON.KEKA.SC.Y.0020.200310T1000Z-200311T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
829 AM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TUESDAY TO
9 AM PDT WEDNESDAY...

* WHAT...North winds 15 to 25 kt. Localized gusts up to 35 kt 
  developing on Tuesday. N seas 6 to 8 feet building to 8 to 11 
  feet Tuesday night.

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

* WHEN...From 3 AM Tuesday to 9 AM 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.

&&

$$
864 
WHUS76 KEKA 092153
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
253 PM PDT Mon Mar 9 2020

PZZ475-100600-
/O.EXT.KEKA.SC.Y.0020.200310T0700Z-200312T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
253 PM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM MIDNIGHT TONIGHT TO
3 AM PDT THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 
  6 to 8 feet building to 8 to 10 feet Tuesday night.

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

* WHEN...From midnight tonight to 3 AM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-100600-
/O.EXT.KEKA.SC.Y.0020.200310T1000Z-200312T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
253 PM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM TUESDAY TO 3 AM
PDT THURSDAY...

* WHAT...North winds 15 to 25 kt. Localized gusts up to 35 kt 
  developing on Tuesday. N seas 6 to 8 feet building to 8 to 11 
  feet Tuesday night.

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

* WHEN...From 3 AM Tuesday to 3 AM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
395 
WHUS76 KEKA 100352
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
852 PM PDT Mon Mar 9 2020

PZZ475-101200-
/O.CON.KEKA.SC.Y.0020.200310T0700Z-200312T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
852 PM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 3 AM PDT THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 
  6 to 8 feet building to 8 to 10 feet Tuesday night.

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

* WHEN...From midnight tonight to 3 AM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-101200-
/O.CON.KEKA.SC.Y.0020.200310T1000Z-200312T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
852 PM PDT Mon Mar 9 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TUESDAY TO
3 AM PDT THURSDAY...

* WHAT...North winds 15 to 25 kt. Localized gusts up to 35 kt 
  developing on Tuesday. N seas 6 to 8 feet building to 8 to 11 
  feet Tuesday night.

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

* WHEN...From 3 AM Tuesday to 3 AM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
362 
WHUS76 KEKA 100959
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
259 AM PDT Tue Mar 10 2020

PZZ450-101800-
/O.EXB.KEKA.SC.Y.0020.200311T0100Z-200313T0400Z/
Pt St George to Cape Mendocino out 10 nm-
259 AM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 9 PM
PDT THURSDAY...

* WHAT...North winds 15 to 25 kt. Gusts to 30 kt near Pt St
  George. N seas 6 to 8 feet building to 8 to 10 feet Wednesday 
  night.

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

* WHEN...From 6 PM this evening to 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-101800-
/O.EXT.KEKA.SC.Y.0020.200310T1000Z-200311T0400Z/
/O.NEW.KEKA.GL.A.0010.200311T0400Z-200313T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
259 AM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...GALE WATCH IN EFFECT FROM THIS EVENING THROUGH THURSDAY
EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt
  with gusts up to 30 kt and N seas 7 to 10 feet. For the Gale
  Watch, north winds 25 to 35 kt. Gusts up to 45 kt developing by
  late Wednesday. N seas 9 to 12 feet building to 12 to 15 feet
  Wednesday evening.

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

* WHEN...For the Small Craft Advisory, until 9 PM PDT this 
  evening. For the Gale Watch, from this evening through 
  Thursday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-101800-
/O.EXT.KEKA.SC.Y.0020.000000T0000Z-200313T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
259 AM PDT Tue Mar 10 2020

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

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 7
  to 9 feet building to 9 to 11 feet tonight.

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

* WHEN...Until 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
541 
WHUS76 KEKA 101526
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
826 AM PDT Tue Mar 10 2020

PZZ470-102330-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200311T0400Z/
/O.CON.KEKA.GL.A.0010.200311T0400Z-200313T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
826 AM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...GALE WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
THURSDAY EVENING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 30 kt and N seas 7 to 10 feet. For the Gale 
  Watch, north winds 25 to 35 kt. Gusts up to 45 kt developing 
  by late Wednesday. N seas 9 to 12 feet building to 12 to 15 
  feet Wednesday evening.

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

* WHEN...For the Small Craft Advisory, until 9 PM PDT this 
  evening. For the Gale Watch, from this evening through 
  Thursday evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-102330-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200313T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
826 AM PDT Tue Mar 10 2020

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

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 
  7 to 9 feet building to 9 to 11 feet tonight.

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

* WHEN...Until 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-102330-
/O.CON.KEKA.SC.Y.0020.200311T0100Z-200313T0400Z/
Pt St George to Cape Mendocino out 10 nm-
826 AM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 9 PM PDT THURSDAY...

* WHAT...North winds 15 to 25 kt. Gusts to 30 kt near Pt St 
  George. N seas 6 to 8 feet building to 8 to 10 feet Wednesday 
  night.

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

* WHEN...From 6 PM this evening to 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
277 
WHUS76 KEKA 102159
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
259 PM PDT Tue Mar 10 2020

PZZ470-110600-
/O.EXT.KEKA.SC.Y.0020.000000T0000Z-200311T2200Z/
/O.UPG.KEKA.GL.A.0010.200311T0400Z-200313T0400Z/
/O.NEW.KEKA.GL.W.0010.200311T2200Z-200313T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
259 PM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 PM PDT WEDNESDAY...
...GALE WARNING IN EFFECT FROM 3 PM WEDNESDAY TO 4 AM PDT
FRIDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 12 to 17 feet expected. For the 
  Small Craft Advisory, north winds 20 to 30 kt with gusts up to 
  35 kt and seas 9 to 11 feet.

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

* WHEN...For the Gale Warning, from 3 PM Wednesday to 4 AM PDT 
  Friday. For the Small Craft Advisory, until 3 PM 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.

&&

$$

PZZ475-110600-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200313T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
259 PM PDT Tue Mar 10 2020

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

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt. N seas 
  7 to 9 feet building to 9 to 11 feet tonight.

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

* WHEN...Until 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-110600-
/O.CON.KEKA.SC.Y.0020.200311T0100Z-200313T0400Z/
Pt St George to Cape Mendocino out 10 nm-
259 PM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 9 PM PDT THURSDAY...

* WHAT...North winds 15 to 25 kt. Gusts to 30 kt near Pt St George
  and Cape Mendocino. N seas 6 to 8 feet building to 8 to 10 feet
  Wednesday night.

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

* WHEN...From 6 PM this evening to 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
641 
WHUS76 KEKA 110353
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
853 PM PDT Tue Mar 10 2020

PZZ470-111200-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200311T2200Z/
/O.CON.KEKA.GL.W.0010.200311T2200Z-200313T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
853 PM PDT Tue Mar 10 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM WEDNESDAY TO 4 AM PDT
FRIDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 12 to 17 feet expected. For the 
  Small Craft Advisory, north winds 20 to 30 kt with gusts up to 
  35 kt and seas 9 to 11 feet.

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

* WHEN...For the Gale Warning, from 3 PM Wednesday to 4 AM PDT 
  Friday. For the Small Craft Advisory, until 3 PM 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.

&&

$$

PZZ450-475-111200-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200313T0400Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
853 PM PDT Tue Mar 10 2020

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

* WHAT...North winds 15 to 25 kt. Gusts to 30 kt near Pt St 
  George and Cape Mendocino. N seas 6 to 8 feet building to 8 to 
  10 feet Wednesday night.

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

* WHEN...From 6 PM this evening to 9 PM PDT Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
910 
WHUS76 KEKA 110955
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
255 AM PDT Wed Mar 11 2020

PZZ470-111800-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200311T2200Z/
/O.CON.KEKA.GL.W.0010.200311T2200Z-200313T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
255 AM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
4 AM PDT FRIDAY...

* WHAT...For the Gale Warning, north winds 25 to 35 kt with 
  gusts up to 45 kt and seas 12 to 17 feet expected. For the 
  Small Craft Advisory, north winds 20 to 30 kt with gusts up to 
  35 kt and seas 9 to 12 feet.

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

* WHEN...For the Gale Warning, from 3 PM Wednesday to 4 AM PDT 
  Friday. For the Small Craft Advisory, until 3 PM 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.

&&

$$

PZZ450-475-111800-
/O.EXT.KEKA.SC.Y.0020.000000T0000Z-200313T1600Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
255 AM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PDT FRIDAY...

* WHAT...North winds 15 to 30 kt. Gusts to 35 kt near Pt St 
  George and Cape Mendocino. N seas 7 to 9 feet building to 9 to 
  11 feet Wednesday night.

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

* WHEN...Until 9 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.

&&

$$
475 
WHUS76 KEKA 111609
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
909 AM PDT Wed Mar 11 2020

PZZ470-120015-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200311T2200Z/
/O.CON.KEKA.GL.W.0010.200311T2200Z-200313T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
909 AM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM THIS 
AFTERNOON... 
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO 
4 AM FRIDAY...

* WHAT...For the Gale Warning, N winds 25 to 35 kt with gusts to
  45 kt and seas 12 to 17 ft. For the Small Craft Advisory, N
  winds 25 to 30 kt with occasional gusts to 35 kt and seas 10 to
  12 ft.

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

* WHEN...For the Gale Warning, from 3 PM this afternoon to 4 AM
  Friday. For the Small Craft Advisory, until 3 PM this 
  afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

$$

PZZ450-475-120015-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200313T1600Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
909 AM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM FRIDAY...

* WHAT...N winds 20 to 30 kt with occasional gusts to 35 kt and
  seas 11 to 16 ft.

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

* WHEN...Until 9 AM 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.

$$
525 
WHUS76 KEKA 112133
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
233 PM PDT Wed Mar 11 2020

PZZ470-120545-
/O.EXP.KEKA.SC.Y.0020.000000T0000Z-200311T2200Z/
/O.CON.KEKA.GL.W.0010.200311T2200Z-200313T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
233 PM PDT Wed Mar 11 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM FRIDAY...

* WHAT...N winds 30 to 40 kt with gusts to 45 kt and seas 12 to 17
  ft.

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

* WHEN...Until 4 AM Friday.

* 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.

$$

PZZ475-120545-
/O.EXT.KEKA.SC.Y.0020.000000T0000Z-200312T0400Z/
/O.NEW.KEKA.SE.W.0007.200312T0400Z-200313T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
233 PM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 PM THIS EVENING... 
...HAZARDOUS SEAS WARNING IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
FRIDAY...

* WHAT...For the Hazardous Seas Warning, very steep and hazardous
  seas 13 to 18 ft. For the Small Craft Advisory, N winds 15 to 
  25 kt with gusts to 30 kt and seas 8 to 12 ft.

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

* WHEN...For the Hazardous Seas Warning, from 9 PM this evening to
  9 AM Friday. For the Small Craft Advisory, until 9 PM 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.

$$

PZZ450-120545-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200313T1600Z/
Pt St George to Cape Mendocino out 10 nm-
233 PM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM FRIDAY...

* WHAT...N winds 15 to 25 kt with occasional gusts to 35 kt and
  seas 8 to 13 ft.

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

* WHEN...Until 9 AM 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.

$$
916 
WHUS76 KEKA 120340
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
840 PM PDT Wed Mar 11 2020

PZZ475-121145-
/O.EXP.KEKA.SC.Y.0020.000000T0000Z-200312T0400Z/
/O.CON.KEKA.SE.W.0007.200312T0400Z-200313T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
840 PM PDT Wed Mar 11 2020

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 AM PDT
FRIDAY...

* WHAT...Very steep and hazardous seas 13 to 18 feet expected.

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

* WHEN...Now through 9 AM Friday.

* 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.

&&

$$

PZZ470-121145-
/O.CON.KEKA.GL.W.0010.000000T0000Z-200313T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
840 PM PDT Wed Mar 11 2020

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PDT FRIDAY...

* WHAT...N winds 30 to 40 kt with gusts to 45 kt and seas 12 to 
  17 ft.

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

* WHEN...Until 4 AM Friday.

* IMPACTS...Strong winds and steep hazardous seas 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.

&&

$$

PZZ450-121145-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-200313T1600Z/
Pt St George to Cape Mendocino out 10 nm-
840 PM PDT Wed Mar 11 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT FRIDAY...

* WHAT...N winds 15 to 25 kt with occasional gusts to 35 kt and 
  seas 8 to 13 ft.

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

* WHEN...Until 9 AM 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.

&&

$$
423 
WHUS76 KEKA 121019
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
319 AM PDT Thu Mar 12 2020

PZZ475-121830-
/O.CAN.KEKA.SE.W.0007.000000T0000Z-200313T1600Z/
/O.EXB.KEKA.GL.W.0010.000000T0000Z-200313T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
319 AM PDT Thu Mar 12 2020

...GALE WARNING IN EFFECT UNTIL 11 AM PDT FRIDAY...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WHAT...North winds 25 to 35 kt with gusts up to 40 kt and seas 
  13 to 18 feet.

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

* WHEN...Until 11 AM PDT Friday.

* 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.

&&

$$

PZZ450-121830-
/O.UPG.KEKA.SC.Y.0020.000000T0000Z-200313T1600Z/
/O.NEW.KEKA.SE.W.0008.200312T1019Z-200313T2200Z/
Pt St George to Cape Mendocino out 10 nm-
319 AM PDT Thu Mar 12 2020

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

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

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

* WHEN...Until 3 PM PDT Friday.

* 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.

&&

$$

PZZ470-121830-
/O.EXT.KEKA.GL.W.0010.000000T0000Z-200313T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
319 AM PDT Thu Mar 12 2020

...GALE WARNING NOW IN EFFECT UNTIL 11 AM PDT FRIDAY...

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

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

* WHEN...Until 11 AM PDT Friday.

* 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.

&&

$$

PZZ455-121830-
/O.NEW.KEKA.SC.Y.0021.200312T1019Z-200313T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
319 AM PDT Thu Mar 12 2020

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT FRIDAY...

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

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

* WHEN...Until 3 PM 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.

&&

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Eureka, CA wrote its last area forecast discussion before this small craft advisory went out at Mar 8, 4:02 PM PDT, 10 hours 33 minutes earlier.

Area forecast discussion, Mar 8, 4:02 PM PDT, 10 hours 33 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
402 PM PDT Sun Mar 8 2020

.SYNOPSIS...Cloudy and cool conditions are expected today and
Monday, with light showers across the mountains of Trinity and
northeast Mendocino counties each afternoon. Warmer, drier and
sunnier conditions are expected Tuesday through Friday, with
cooler and showery conditions over the weekend.

&&

.DISCUSSION...While there has been very little, if any
precipitation thus far throughout northwest California today,
mid level moisture is streaming into the area from the southeast
as a large low pressure system inches toward the California
coastline. This is made evident by the increase in mid and high
level cloud cover throughout the area, in addition to a
persistent cumulus field across Trinity County driven by moist
upslope flow over the Klamath Mountains. While the increasing mid
and high level clouds will limit afternoon heating and likewise
limit instability, scattered weak showers will likely develop
across mainly Trinity County over the next few hours, perhaps
lasting into the overnight hours. Precipitation totals will be
light, and while a strike of lightning or two can't be completely
ruled out, thunderstorms are not likely. Overnight tonight,
temperatures are likely to be slightly warmer than they were the
previous night thanks to the proliferation of cloud cover, which
will also likely limit the formation of frost. Conditions Monday
will be very similar to Sunday, albeit perhaps 5 to 8 degrees
warmer. Weak afternoon showers will once again be possible across
Trinity and northeast Mendocino County.

By Tuesday the previously mentioned low pressure system will
finally begin to move onshore, but this will primarily only
impact Central and Southern California, along with the southern
Sierras. Farther north, high pressure will actually begin to
build on Tuesday, putting an end to mountain showers and beginning
a sharp warming trend. Afternoon high temperatures Tuesday through
Friday are expected to climb well into the 70s across inland
areas, with decreasing clouds and no precipitation expected.

The next opportunity for rain will come on Friday night or
Saturday, as the first in a series of cold storm systems is
expected to arrive from the north. Unfortunately while it may
bring some modest rainfall, this system is not likely to bring the
kind of prolonged, soaking rain that would make a significant
impact on the region, and a second similar system later in the
weekend likely won't either. Instead, expect sporadic rain and
mountain snow, along with a marked cooling trend. /BRC

&&

.AVIATION...Afternoon satellite imagery shows high clouds
streaming across the area as cumulus cloud continue to build over
the interior. Upslope flow will continue to produce lower clouds
across portions of Trinity County through most of the TAF period.
That being said, mostly VFR conditions are expected to prevail
across Northwest California through tonight. A disturbance will
approach from the northwest tonight and will likely lower ceilings
across the area. Isolated showers/drizzle will continue to be
possible through Monday across portions of the interior,
especially in the higher elevations.

&&

.MARINE...East to southeasterly winds will continue through late
tonight over the waters as a low pressure system continues to
churn off the south-central California coast. This system will
slowly meander southward tonight as high pressure builds over the
East Pacific, resulting in northerlies redeveloping early tomorrow
morning over the coastal waters. Winds will then begin to
increase late tomorrow, with winds strengthening to moderate to
strong northerlies by early on Tuesday over the outer waters.
Conditions over the nearshore waters are expected to be less
pronounced than over the outer waters. Winds are forecast to
remain around the same strength through Thursday morning, with
some Gales possibly developing over the northern outer waters
Thursday afternoon. Winds are then expected to weaken throughout
the day on Friday.

A northwest swell will continue to diminish through Tuesday as
another northwest swell is set to move through the waters starting
late tomorrow. Steep, short-period seas will develop early next
week in response to the increasing northerlies. In addition, a
southwest swell at 1 to 3 feet around 15 seconds is forecast to
also move through portions of the waters from late today through
around the middle of the upcoming work week.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...None.
NORTHWEST CALIFORNIA COASTAL WATERS...None.
&&

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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png
Hazardous weather outlook, Mar 8, 2:49 PM PDT, 11 hours 46 minutes before
Hazardous Weather Outlook
National Weather Service Eureka CA
249 PM PDT Sun Mar 8 2020

CAZ101>115-092200-
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Mendocino Coast-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-Northern Lake County-
Southern Lake County-
249 PM PDT Sun Mar 8 2020

This hazardous weather outlook is for northwest California.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

No hazardous weather is expected at this time.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 9, 5:28 AM PDTFrost AdvisoryEKALake, Mendocino28 hr

Nearby

Small Craft Advisories in California, 2020Every small craft advisory in 2020

Sources

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