Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 21, NWS Eureka, CA

February 19, 2021

NWS Eureka, CA issued this small craft advisory at Feb 19, 2021, 2:23 PM PST. It took effect at Feb 19, 2021, 6:00 PM PST. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Feb 19, 2021, 2:23 PM PST (22:23 UTC)
In effect from
Feb 19, 2021, 6:00 PM PST
Expired
Feb 20, 2021, 12:00 AM PST
In force
6 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

868 
WHUS76 KEKA 192223
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
223 PM PST Fri Feb 19 2021

PZZ450-200630-
/O.NEW.KEKA.SC.Y.0021.210220T0200Z-210220T0800Z/
/O.UPG.KEKA.SC.Y.0020.210220T0800Z-210221T0800Z/
/O.NEW.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
Pt St George to Cape Mendocino out 10 nm-
223 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT PST TONIGHT...
...HAZARDOUS SEAS WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM
PST SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 10 to 15 feet expected. For the Small Craft 
  Advisory, seas 8 to 10 feet expected.

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

* WHEN...For the Hazardous Seas Warning, from midnight tonight 
  to 4 PM PST Saturday. For the Small Craft Advisory, from 6 PM 
  this evening to midnight PST tonight.

* 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.

&&

$$

PZZ455-200630-
/O.NEW.KEKA.SC.Y.0021.210220T0200Z-210220T0800Z/
/O.UPG.KEKA.SC.Y.0020.210220T0800Z-210222T0800Z/
/O.NEW.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
Cape Mendocino to Pt Arena out 10 nm-
223 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT PST TONIGHT...
...HAZARDOUS SEAS WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM
PST SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 11 to 16 feet expected. For the Small Craft 
  Advisory, seas 7 to 10 feet expected.

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

* WHEN...For the Hazardous Seas Warning, from midnight tonight 
  to 4 PM PST Saturday. For the Small Craft Advisory, from 6 PM 
  this evening to midnight PST tonight.

* 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.

&&

$$

PZZ470-475-200630-
/O.EXT.KEKA.SC.Y.0020.210220T0200Z-210220T0800Z/
/O.NEW.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
223 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT PST TONIGHT...
...HAZARDOUS SEAS WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 4 PM
PST SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and 
  hazardous seas 12 to 17 feet expected. For the Small Craft 
  Advisory, southwest winds 10 to 20 kt with gusts up to 30 kt 
  and seas 9 to 14 feet expected.

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

* WHEN...For the Hazardous Seas Warning, from midnight tonight 
  to 4 PM PST Saturday. For the Small Craft Advisory, from 6 PM 
  this evening to midnight PST tonight.

* 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.

&&

$$
2 follow-up statements
086 
WHUS76 KEKA 200025
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
425 PM PST Fri Feb 19 2021

PZZ470-475-200830-
/O.CON.KEKA.SC.Y.0020.210220T0200Z-210220T0800Z/
/O.CAN.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
/O.NEW.KEKA.GL.W.0012.210220T0800Z-210220T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
425 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST
SATURDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with 
  gusts up to 40 kt and seas 12 to 17 feet expected. For the 
  Small Craft Advisory, west winds 15 to 25 kt with gusts up to 
  35 kt and seas 9 to 14 feet expected.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PST 
  Saturday. For the Small Craft Advisory, until midnight PST 
  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.

&&

$$

PZZ455-200830-
/O.CON.KEKA.SC.Y.0021.210220T0200Z-210220T0800Z/
/O.CAN.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
/O.NEW.KEKA.GL.W.0012.210220T0800Z-210220T1700Z/
Cape Mendocino to Pt Arena out 10 nm-
425 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST
SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 25 kt with 
  gusts up to 35 kt and seas 11 to 16 feet expected. For the 
  Small Craft Advisory, southwest winds 10 to 20 kt with gusts 
  up to 25 kt and seas 7 to 10 feet expected.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PST 
  Saturday. For the Small Craft Advisory, until midnight PST 
  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.

&&

$$

PZZ450-200830-
/O.CON.KEKA.SC.Y.0021.210220T0200Z-210220T0800Z/
/O.CON.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
Pt St George to Cape Mendocino out 10 nm-
425 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 4 PM PST SATURDAY...

* WHAT...For the Hazardous Seas Warning, very steep and hazardous
  seas 10 to 15 feet expected along with northwest winds 15 to 25
  kts...with a few gusts reaching 35 kt. For the Small Craft 
  Advisory, southwest winds 15 to 20 kt with gusts up to 25 kt and
  seas 8 to 10 feet expected.

* WHERE...Pt St George to Cape Mendocino out 10 nm, strongest
  winds and highest seas expected between Trinidad and Cape 
  Mendocino.

* WHEN...For the Hazardous Seas Warning, from midnight tonight 
  to 4 PM PST Saturday. For the Small Craft Advisory, until 
  midnight PST tonight.

* 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.

&&

$$
885 
WHUS76 KEKA 200422
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
822 PM PST Fri Feb 19 2021

PZZ450-201230-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-210220T0800Z/
/O.CAN.KEKA.SE.W.0013.210220T0800Z-210221T0000Z/
/O.EXA.KEKA.GL.W.0012.210220T0800Z-210220T1700Z/
Pt St George to Cape Mendocino out 10 nm-
822 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
...GALE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM PST
SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 40 kt and seas 10 to 15 feet expected. For the 
  Small Craft Advisory, southwest winds 15 to 20 kt with gusts 
  up to 30 kt and seas 8 to 10 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PST 
  Saturday. For the Small Craft Advisory, until midnight PST 
  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.

&&

$$

PZZ455-201230-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-210220T0800Z/
/O.CON.KEKA.GL.W.0012.210220T0800Z-210220T1700Z/
Cape Mendocino to Pt Arena out 10 nm-
822 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PST SATURDAY...

* WHAT...For the Gale Warning, northwest winds 20 to 30 kt with 
  gusts up to 35 kt and seas 11 to 16 feet expected. For the 
  Small Craft Advisory, west winds 10 to 20 kt with gusts up to 
  30 kt and seas 7 to 10 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PST 
  Saturday. For the Small Craft Advisory, until midnight PST 
  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.

&&

$$

PZZ470-475-201230-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-210220T0800Z/
/O.CON.KEKA.GL.W.0012.210220T0800Z-210220T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
822 PM PST Fri Feb 19 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...
...GALE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PST SATURDAY...

* WHAT...For the Gale Warning, northwest winds 25 to 30 kt with
  gusts up to 45 kt and seas 12 to 17 feet expected. For the Small
  Craft Advisory, west winds 20 to 30 kt with a few gusts up to 
  40 kt and seas 9 to 14 feet.

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

* WHEN...For the Gale Warning, from midnight tonight to 9 AM PST 
  Saturday. For the Small Craft Advisory, until midnight PST 
  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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 19, 3:01 AM PSTSmall Craft AdvisoryEKA21 hr
Feb 19, 2:23 PM PSTHazardous Seas WarningEKA6 hr

Nearby

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

Sources

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