Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 104, NWS Eureka, CA

October 11, 2021

NWS Eureka, CA issued this small craft advisory at Oct 11, 2021, 8:51 PM PDT. It took effect at Oct 11, 2021, 9:00 PM PDT. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Oct 11, 2021, 8:51 PM PDT (03:51 UTC)
In effect from
Oct 11, 2021, 9:00 PM PDT
Expired
Oct 12, 2021, 9:00 PM PDT
In force
24 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

790 
WHUS76 KEKA 120351
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
851 PM PDT Mon Oct 11 2021

PZZ475-121000-
/O.EXP.KEKA.GL.W.0045.000000T0000Z-211012T0400Z/
/O.CON.KEKA.SE.W.0057.211012T0400Z-211012T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
851 PM PDT Mon Oct 11 2021

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 AM PDT
TUESDAY...

* WHAT...Very steep and hazardous seas 12 to 15 feet expected.

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

* WHEN...Until 3 AM PDT Tuesday.

* 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.

&&

$$

PZZ455-121200-
/O.EXP.KEKA.GL.W.0045.000000T0000Z-211012T0400Z/
/O.NEW.KEKA.SC.Y.0104.211012T0400Z-211012T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
851 PM PDT Mon Oct 11 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PDT TUESDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  9 to 14 feet expected.

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

* WHEN...Until 9 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.

&&

$$

PZZ450-121200-
/O.CON.KEKA.SC.Y.0103.000000T0000Z-211012T1600Z/
Pt St George to Cape Mendocino out 10 nm-
851 PM PDT Mon Oct 11 2021

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

* WHAT...North winds 10 to 20 kt with gusts up to 30 kt and seas 
  8 to 12 feet.

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

* WHEN...Until 9 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.

&&

$$

PZZ470-121200-
/O.CON.KEKA.SC.Y.0103.000000T0000Z-211012T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
851 PM PDT Mon Oct 11 2021

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

* WHAT...North winds 15 to 20 kt with gusts up to 30 kt and seas 
  10 to 12 feet.

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

* WHEN...Until 9 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.

&&

$$
4 follow-up statements
499 
WHUS76 KEKA 121000
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
300 AM PDT Tue Oct 12 2021

PZZ475-121800-
/O.EXP.KEKA.SE.W.0057.000000T0000Z-211012T1000Z/
/O.EXB.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
300 AM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 PM PDT THIS EVENING...
...HAZARDOUS SEAS WARNING HAS EXPIRED...

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

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-121800-
/O.EXT.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
300 AM PDT Tue Oct 12 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 6 to 11 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ450-121600-
/O.CON.KEKA.SC.Y.0103.000000T0000Z-211012T1600Z/
Pt St George to Cape Mendocino out 10 nm-
300 AM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

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

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

* WHEN...Until 9 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.

&&

$$

PZZ470-121600-
/O.CON.KEKA.SC.Y.0103.000000T0000Z-211012T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
300 AM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PDT THIS
MORNING...

* WHAT...North winds 15 to 20 kt with gusts up to 25 kt and seas 
  9 to 13 feet.

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

* WHEN...Until 9 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.

&&

$$
785 
WHUS76 KEKA 121555
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
855 AM PDT Tue Oct 12 2021

PZZ450-121700-
/O.EXP.KEKA.SC.Y.0103.000000T0000Z-211012T1600Z/
Pt St George to Cape Mendocino out 10 nm-
855 AM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 9 AM PDT THIS MORNING...


$$

PZZ470-121900-
/O.EXT.KEKA.SC.Y.0103.000000T0000Z-211012T1900Z/
Pt St George to Cape Mendocino 10 to 60 nm-
855 AM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL NOON PDT TODAY...

* WHAT...Seas 9 to 13 feet.

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

* WHEN...Until noon PDT today.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ455-130000-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
855 AM PDT Tue Oct 12 2021

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

* WHAT...Northwest winds 15 to 20 kt with gusts up to 25 kt and 
  seas 7 to 10 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-130000-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
855 AM PDT Tue Oct 12 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 25 kt and 
  seas 7 to 11 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
643 
WHUS76 KEKA 122114
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
214 PM PDT Tue Oct 12 2021

PZZ450-130515-
/O.NEW.KEKA.SC.Y.0105.211013T1200Z-211014T1400Z/
Pt St George to Cape Mendocino out 10 nm-
214 PM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 5 AM WEDNESDAY TO 7 AM PDT
THURSDAY...

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

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

* WHEN...From 5 AM Wednesday to 7 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.

&&

$$

PZZ470-130515-
/O.NEW.KEKA.SC.Y.0105.211013T0900Z-211014T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
214 PM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 2 AM WEDNESDAY TO 1 PM PDT
THURSDAY...

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

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

* WHEN...From 2 AM Wednesday to 1 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.

&&

$$

PZZ455-130400-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
214 PM PDT Tue Oct 12 2021

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

* WHAT...Northwest winds 15 to 20 kt with gusts up to 30 kt and 
  seas 8 to 10 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-130400-
/O.CON.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
214 PM PDT Tue Oct 12 2021

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

* WHAT...Northwest winds 10 to 20 kt with gusts up to 30 kt and 
  seas 8 to 12 feet.

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

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

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
850 
WHUS76 KEKA 130400
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
900 PM PDT Tue Oct 12 2021

PZZ455-131200-
/O.EXP.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
/O.EXB.KEKA.SC.Y.0105.211013T1600Z-211014T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
900 PM PDT Tue Oct 12 2021

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

* WHAT...Northwest winds 20 to 30 kt with gusts up to 35 kt and 
  seas 6 to 11 feet expected.

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

* WHEN...From 9 AM Wednesday to 9 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.

&&

$$

PZZ475-131200-
/O.EXP.KEKA.SC.Y.0104.000000T0000Z-211013T0400Z/
/O.EXB.KEKA.SC.Y.0105.211013T1000Z-211015T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
900 PM PDT Tue Oct 12 2021

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

* WHAT...North winds 20 to 30 kt with gusts up to 35 kt and seas 
  7 to 12 feet expected.

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

* WHEN...From 3 AM Wednesday 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.

&&

$$

PZZ450-131200-
/O.EXT.KEKA.SC.Y.0105.211013T1600Z-211014T1600Z/
Pt St George to Cape Mendocino out 10 nm-
900 PM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM WEDNESDAY TO 9 AM
PDT THURSDAY...

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

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

* WHEN...From 9 AM Wednesday to 9 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.

&&

$$

PZZ470-131200-
/O.EXT.KEKA.SC.Y.0105.211013T1000Z-211014T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
900 PM PDT Tue Oct 12 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM WEDNESDAY TO 1 PM
PDT THURSDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas 
  6 to 11 feet expected.

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

* WHEN...From 3 AM Wednesday to 1 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
Oct 12, 2:13 PM PDTFreeze WatchEKAHumboldt, Lake, Mendocino, Trinity24 hr
Oct 12, 2:14 PM PDTSmall Craft AdvisoryEKA4 days

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.