Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 31, NWS Eureka, CA

March 15, 2021

NWS Eureka, CA issued this small craft advisory at Mar 15, 2021, 10:44 PM PDT. It was in force for 20 hr.

The area

The counties it named.

The facts

Issued
Mar 15, 2021, 10:44 PM PDT (05:44 UTC)
Expired
Mar 16, 2021, 6:54 PM PDT
In force
20 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

527 
WHUS76 KEKA 160544
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1044 PM PDT Mon Mar 15 2021

PZZ450-455-161345-
/O.CAN.KEKA.GL.W.0016.000000T0000Z-210316T0600Z/
/O.NEW.KEKA.SC.Y.0031.210316T0544Z-210316T1800Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
1044 PM PDT Mon Mar 15 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM PDT TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  8 to 13 feet.

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

* WHEN...Until 11 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.

&&

$$

PZZ470-161200-
/O.CON.KEKA.GL.W.0016.000000T0000Z-210316T1200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1044 PM PDT Mon Mar 15 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 5 AM PDT TUESDAY...

* WHAT...North winds 20 to 25 kt with gusts up to 35 kt and seas 
  10 to 12 feet.

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

* WHEN...Until 5 AM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-161345-
/O.CON.KEKA.GL.W.0016.000000T0000Z-210316T1500Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1044 PM PDT Mon Mar 15 2021

...GALE WARNING REMAINS IN EFFECT UNTIL 8 AM PDT TUESDAY...

* WHAT...North winds 25 to 30 kt with gusts up to 40 kt and seas 
  11 to 15 feet.

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

* WHEN...Until 8 AM PDT Tuesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
4 follow-up statements
422 
WHUS76 KEKA 161009
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
309 AM PDT Tue Mar 16 2021

PZZ470-161815-
/O.CAN.KEKA.GL.W.0016.000000T0000Z-210316T1200Z/
/O.EXB.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
/O.NEW.KEKA.GL.A.0014.210318T0400Z-210318T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
309 AM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...
...GALE WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH THURSDAY
MORNING...
...GALE WARNING IS CANCELLED...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt
  with gusts up to 30 kt and seas 8 to 11 feet. For the Gale
  Watch, south winds 30 to 35 kt with gusts to around 45 kt and 
  seas 10 to 14 feet possible.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Gale Watch, from Wednesday evening through 
  Thursday morning.

* 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.

&&

$$

PZZ475-161600-
/O.EXT.KEKA.GL.W.0016.000000T0000Z-210316T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
309 AM PDT Tue Mar 16 2021

...GALE WARNING NOW IN EFFECT UNTIL 9 AM PDT THIS MORNING...

* WHAT...North winds 25 to 30 kt with gusts up to 35 kt and seas 
  11 to 15 feet.

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

* WHEN...Until 9 AM PDT this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-161815-
/O.EXT.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
Pt St George to Cape Mendocino out 10 nm-
309 AM PDT Tue Mar 16 2021

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

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

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-161815-
/O.EXT.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
309 AM PDT Tue Mar 16 2021

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

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

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
581 
WHUS76 KEKA 161540
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
840 AM PDT Tue Mar 16 2021

PZZ475-162345-
/O.CAN.KEKA.GL.W.0016.000000T0000Z-210316T1600Z/
/O.EXB.KEKA.SC.Y.0031.210316T1600Z-210317T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
840 AM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...
...GALE WARNING IS CANCELLED...

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

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

* WHEN...Until midnight PDT tonight.

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


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-162345-
/O.CON.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
/O.CON.KEKA.GL.A.0014.210318T0400Z-210318T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
840 AM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING THROUGH
THURSDAY MORNING...

* WHAT...For the Small Craft Advisory, north winds 15 to 25 kt 
  with gusts up to 30 kt and seas 8 to 10 feet. For the Gale 
  Watch, south winds 30 to 35 kt with gusts up to 50 kt and seas 
  10 to 13 feet possible.

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

* WHEN...For the Small Craft Advisory, until 3 PM PDT this 
  afternoon. For the Gale Watch, from Wednesday evening through 
  Thursday morning.

* 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.

&&

$$

PZZ450-162200-
/O.CON.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
Pt St George to Cape Mendocino out 10 nm-
840 AM PDT Tue Mar 16 2021

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

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

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

&&

$$

PZZ455-162200-
/O.CON.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
840 AM PDT Tue Mar 16 2021

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

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

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

* WHEN...Until 3 PM PDT 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.

&&

$$
580 
WHUS76 KEKA 162125
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
225 PM PDT Tue Mar 16 2021

PZZ470-170530-
/O.CAN.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
/O.NEW.KEKA.SC.Y.0032.210317T2100Z-210318T0400Z/
/O.UPG.KEKA.GL.A.0014.210318T0400Z-210318T1600Z/
/O.NEW.KEKA.GL.W.0017.210318T0400Z-210318T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
225 PM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 PM TO 9 PM PDT
WEDNESDAY...
...GALE WARNING IN EFFECT FROM 9 PM WEDNESDAY TO 9 AM PDT
THURSDAY...

* WHAT...For the Gale Warning, south winds 30 to 40 kt with 
  gusts up to 50 kt and seas 8 to 11 feet expected. For the 
  Small Craft Advisory, south winds 20 to 25 kt with gusts up to 
  30 kt and seas 6 to 9 feet expected.

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

* WHEN...For the Gale Warning, from 9 PM Wednesday to 9 AM PDT 
  Thursday. For the Small Craft Advisory, from 2 PM to 9 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.

&&

$$

PZZ475-170530-
/O.EXT.KEKA.SC.Y.0031.000000T0000Z-210317T0300Z/
/O.NEW.KEKA.GL.W.0017.210318T0400Z-210318T1400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
225 PM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 PM PDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 9 PM WEDNESDAY TO 7 AM PDT
THURSDAY...

* WHAT...For the Gale Warning, southeast winds 25 to 35 kt with 
  gusts up to 45 kt and seas 8 to 11 feet expected. For the 
  Small Craft Advisory, north winds 15 to 20 kt with gusts up to 
  25 kt and seas around 7 feet.

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

* WHEN...For the Gale Warning, from 9 PM Wednesday to 7 AM PDT 
  Thursday. 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.

&&

$$

PZZ450-162230-
/O.CON.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
Pt St George to Cape Mendocino out 10 nm-
225 PM PDT Tue Mar 16 2021

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

* WHAT...Seas around 6 feet.

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

&&

$$

PZZ455-162230-
/O.CON.KEKA.SC.Y.0031.000000T0000Z-210316T2200Z/
Cape Mendocino to Pt Arena out 10 nm-
225 PM PDT Tue Mar 16 2021

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

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

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

&&

$$
207 
WHUS76 KEKA 170154
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
654 PM PDT Tue Mar 16 2021

PZZ475-171000-
/O.CAN.KEKA.SC.Y.0031.000000T0000Z-210317T0300Z/
/O.EXB.KEKA.SC.Y.0032.210318T0000Z-210318T0400Z/
/O.EXT.KEKA.GL.W.0017.210318T0400Z-210318T1500Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
654 PM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 PM TO 9 PM PDT
WEDNESDAY...
...GALE WARNING NOW IN EFFECT FROM 9 PM WEDNESDAY TO 8 AM PDT
THURSDAY...

* WHAT...For the Gale Warning, southeast winds 25 to 35 kt with 
  gusts up to 45 kt and seas 8 to 11 feet expected. For the 
  Small Craft Advisory, south winds 20 to 30 kt with gusts up to 
  35 kt and seas around 8 feet expected.

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

* WHEN...For the Gale Warning, from 9 PM Wednesday to 8 AM PDT 
  Thursday. For the Small Craft Advisory, from 5 PM to 9 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.

&&

$$

PZZ470-171000-
/O.CON.KEKA.SC.Y.0032.210317T2100Z-210318T0400Z/
/O.EXT.KEKA.GL.W.0017.210318T0400Z-210318T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
654 PM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 2 PM TO 9 PM PDT
WEDNESDAY...
...GALE WARNING NOW IN EFFECT FROM 9 PM WEDNESDAY TO 11 AM PDT
THURSDAY...

* WHAT...For the Gale Warning, south winds 30 to 40 kt with 
  gusts up to 50 kt and seas 8 to 11 feet expected. For the 
  Small Craft Advisory, south winds 20 to 25 kt with gusts up to 
  30 kt and seas 6 to 9 feet expected.

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

* WHEN...For the Gale Warning, from 9 PM Wednesday to 11 AM PDT 
  Thursday. For the Small Craft Advisory, from 2 PM to 9 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.

&&

$$

PZZ450-455-171000-
/O.EXB.KEKA.SC.Y.0032.210318T0400Z-210318T2100Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
654 PM PDT Tue Mar 16 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM WEDNESDAY TO 2 PM PDT
THURSDAY...

* WHAT...Southeast winds 20 to 30 kt with gusts to 35 kt and seas
  6 to 9 feet expected.

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

* WHEN...From 9 PM Wednesday to 2 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 16, 3:09 AM PDTGale WatchEKA11 hr
Mar 16, 9:08 AM PDTFreeze WatchEKALake, Mendocino4 hr
Mar 16, 1:27 PM PDTFrost AdvisoryEKADel Norte, Humboldt, Mendocino20 hr
Mar 16, 1:27 PM PDTFreeze WarningEKALake, Mendocino20 hr
Mar 16, 1:39 PM PDTWinter Storm WatchEKA14 hr
Mar 16, 2:25 PM PDTGale WarningEKA46 hr
Mar 16, 2:25 PM PDTSmall Craft AdvisoryEKA36 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.