Alert archive / California / Small Craft Advisories in 2021

Small Craft Advisory 144, NWS Eureka, CA

December 28, 2021

NWS Eureka, CA issued this small craft advisory at Dec 28, 2021, 2:36 PM PST. It took effect at Dec 29, 2021, 2:46 AM PST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Dec 28, 2021, 2:36 PM PST (22:36 UTC)
In effect from
Dec 29, 2021, 2:46 AM PST
Expired
Dec 30, 2021, 2:34 PM PST
In force
36 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

242 
WHUS76 KEKA 282236
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
236 PM PST Tue Dec 28 2021

PZZ470-290645-
/O.NEW.KEKA.SC.Y.0144.211229T1700Z-211230T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
236 PM PST Tue Dec 28 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM WEDNESDAY TO 6 AM 
THURSDAY...

* WHAT...North winds 20 to 30 kt and seas 7 to 12 feet expected.

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

* WHEN...From 9 AM Wednesday to 6 AM 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.

$$

PZZ475-290645-
/O.NEW.KEKA.SC.Y.0144.211229T2000Z-211230T1700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
236 PM PST Tue Dec 28 2021

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

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

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

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

$$
9 follow-up statements
743 
WHUS76 KEKA 290447
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
847 PM PST Tue Dec 28 2021

PZZ470-291300-
/O.CON.KEKA.SC.Y.0144.211229T1700Z-211230T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
847 PM PST Tue Dec 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 AM WEDNESDAY TO
6 AM PST THURSDAY...

* WHAT...North winds 20 to 30 kt with gusts to around 35 kt and 
  seas 8 to 13 feet expected.

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

* WHEN...From 9 AM Wednesday to 6 AM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-291300-
/O.CON.KEKA.SC.Y.0144.211229T2000Z-211230T1700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
847 PM PST Tue Dec 28 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM NOON WEDNESDAY TO
9 AM PST THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 35 kt and seas 
  8 to 13 feet expected.

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

* WHEN...From noon Wednesday to 9 AM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
330 
WHUS76 KEKA 291046
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
246 AM PST Wed Dec 29 2021

PZZ450-291900-
/O.EXB.KEKA.SC.Y.0144.211229T2000Z-211230T1000Z/
Pt St George to Cape Mendocino out 10 nm-
246 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON TODAY TO 2 AM PST
THURSDAY...

* WHAT...North winds 15 to 25 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 noon today to 2 AM PST 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.

&&

$$

PZZ470-291900-
/O.EXT.KEKA.SC.Y.0144.211229T1046Z-211230T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
246 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM PST THURSDAY...

* WHAT...North winds 15 to 25 kt with a few gusts up to 35 kt and
  seas 9 to 12 feet.

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

* WHEN...Until 6 AM PST 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.

&&

$$

PZZ475-291900-
/O.EXT.KEKA.SC.Y.0144.211229T1700Z-211230T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
246 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 AM THIS MORNING TO
3 PM PST THURSDAY...

* WHAT...North winds 15 to 25 kt with a few gusts up to 35 kt and
  seas 8 to 12 feet expected.

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

* WHEN...From 9 AM this morning to 3 PM PST 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.

&&

$$
529 
WHUS76 KEKA 291710
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
910 AM PST Wed Dec 29 2021

PZZ450-300115-
/O.CON.KEKA.SC.Y.0144.211229T2000Z-211230T1000Z/
Pt St George to Cape Mendocino out 10 nm-
910 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts to 30 kt and seas 7 
  to 11 feet expected.

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

* WHEN...Until 2 AM 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.

$$

PZZ470-300115-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
910 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM THURSDAY...

* WHAT...North winds 15 to 25 kt with occasional gusts to 35 kt 
  and seas 9 to 12 feet.

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

* WHEN...Until 6 AM 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.

$$

PZZ475-300115-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
910 AM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM THURSDAY...

* WHAT...North winds 15 to 25 kt with occasional gusts to 35 kt 
  and seas 8 to 12 feet.

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

* WHEN...Until 3 PM 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.

$$
597 
WHUS76 KEKA 300030
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
430 PM PST Wed Dec 29 2021

PZZ450-300830-
/O.EXT.KEKA.SC.Y.0144.000000T0000Z-211230T1100Z/
Pt St George to Cape Mendocino out 10 nm-
430 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PST THURSDAY...

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

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

* WHEN...Until 3 AM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-300830-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
430 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST
THURSDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  9 to 12 feet.

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

* WHEN...Until 6 AM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-300830-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
430 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
THURSDAY...

* WHAT...North winds 15 to 25 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 3 PM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
429 
WHUS76 KEKA 300419
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
819 PM PST Wed Dec 29 2021

PZZ450-301100-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T1100Z/
Pt St George to Cape Mendocino out 10 nm-
819 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST
THURSDAY...

* WHAT...North winds 10 to 15 kt with gusts up to around 25 kt 
  and seas 7 to 9 feet.

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

* WHEN...Until 3 AM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ470-301230-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T1400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
819 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST
THURSDAY...

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

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

* WHEN...Until 6 AM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PZZ475-301230-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
819 PM PST Wed Dec 29 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST
THURSDAY...

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

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

* WHEN...Until 3 PM PST Thursday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
628 
WHUS76 KEKA 301039
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
239 AM PST Thu Dec 30 2021

PZZ450-301700-
/O.EXT.KEKA.SC.Y.0144.000000T0000Z-211230T1700Z/
Pt St George to Cape Mendocino out 10 nm-
239 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* WHAT...Seas 8 to 10 feet at 12 seconds.

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

* WHEN...Until 9 AM PST 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.

&&

$$

PZZ470-301700-
/O.EXT.KEKA.SC.Y.0144.000000T0000Z-211230T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
239 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* WHAT...Seas 9 to 11 feet at 12 seconds.

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

* WHEN...Until 9 AM PST 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.

&&

$$

PZZ475-301845-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211230T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
239 AM PST Thu Dec 30 2021

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

* WHAT...Northwest winds 10 to 15 kt and seas 9 to 11 feet.

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

* WHEN...Until 3 PM PST 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.

&&

$$
129 
WHUS76 KEKA 301706
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
906 AM PST Thu Dec 30 2021

PZZ450-302000-
/O.EXP.KEKA.SC.Y.0144.000000T0000Z-211230T1700Z/
/O.NEW.KEKA.SC.Y.0145.211230T1706Z-211230T2000Z/
Pt St George to Cape Mendocino out 10 nm-
906 AM PST Thu Dec 30 2021

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

* WHAT...Seas 7 to 10 feet.

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

* WHEN...Until noon 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.

$$

PZZ470-302000-
/O.EXP.KEKA.SC.Y.0144.000000T0000Z-211230T1700Z/
/O.NEW.KEKA.SC.Y.0145.211230T1706Z-211230T2000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
906 AM PST Thu Dec 30 2021

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

* WHAT...Seas 8 to 11 feet.

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

* WHEN...Until noon 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.

$$

PZZ475-310115-
/O.EXT.KEKA.SC.Y.0144.000000T0000Z-211231T0200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
906 AM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM THIS EVENING...

* WHAT...Seas 7 to 10 feet.

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

* WHEN...Until 6 PM 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.

$$
314 
WHUS76 KEKA 302002
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
1202 PM PST Thu Dec 30 2021

PZZ450-470-302115-
/O.EXP.KEKA.SC.Y.0145.000000T0000Z-211230T2000Z/
Pt St George to Cape Mendocino out 10 nm-
Pt St George to Cape Mendocino 10 to 60 nm-
1202 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY HAS EXPIRED...

$$

PZZ475-310200-
/O.CON.KEKA.SC.Y.0144.000000T0000Z-211231T0200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1202 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM THIS 
EVENING...

* WHAT...Northwest winds 10 to 15 kt with gusts to 25 kt and seas
  6 to 9 feet.

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

* WHEN...Until 6 PM 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.

$$
100 
WHUS76 KEKA 302234
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
234 PM PST Thu Dec 30 2021

PZZ475-310645-
/O.CAN.KEKA.SC.Y.0144.000000T0000Z-211231T0200Z/
/O.NEW.KEKA.SC.Y.0146.211231T0500Z-220101T0500Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
234 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 PM 
FRIDAY...


* WHAT...Northwest winds 15 to 20 kt with gusts to 25 kt and seas 6 
  to 11 feet expected.

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

* WHEN...From 9 PM this evening to 9 PM 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.

$$

PZZ470-310645-
/O.NEW.KEKA.SC.Y.0146.211231T0200Z-211231T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
234 PM PST Thu Dec 30 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 PM THIS EVENING TO 3 PM
FRIDAY...

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

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

* WHEN...From 6 PM this evening to 3 PM 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.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 28, 2:14 PM PSTWinter Weather AdvisoryEKAHumboldt, Trinity17 hr
Dec 28, 2:15 PM PSTFreeze WatchEKADel Norte, Humboldt, Mendocino13 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.