Alert archive / California / Small Craft Advisories in 2020

Small Craft Advisory 101, NWS Eureka, CA

December 5, 2020

NWS Eureka, CA issued this small craft advisory at Dec 5, 2020, 2:55 AM PST. It took effect at Dec 5, 2020, 9:00 AM PST. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued: Dec 5, 2020, 2:55 AM PST (10:55 UTC)
In effect from: Dec 5, 2020, 9:00 AM PST
Expired: Dec 5, 2020, 6:00 PM PST
In force: 9 hr
Issued by: NWS Eureka, CA

The text

As transmitted.

506 
WHUS76 KEKA 051055
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
255 AM PST Sat Dec 5 2020

PZZ470-051900-
/O.NEW.KEKA.SC.Y.0101.201205T1700Z-201206T0200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
255 AM PST Sat Dec 5 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO 6 PM
PST THIS EVENING...

* WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 7
  to 9 feet expected.

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

* WHEN...From 9 AM this morning to 6 PM PST 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.

&&

$$

2 follow-up statements

120 
WHUS76 KEKA 051618
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
818 AM PST Sat Dec 5 2020

PZZ470-060030-
/O.CON.KEKA.SC.Y.0101.201205T1700Z-201206T0200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
818 AM PST Sat Dec 5 2020

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

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

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

* WHEN...From 9 AM this morning to 6 PM PST 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.

&&

$$

793 
WHUS76 KEKA 052220
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
220 PM PST Sat Dec 5 2020

PZZ470-060630-
/O.CON.KEKA.SC.Y.0101.000000T0000Z-201206T0200Z/
/O.NEW.KEKA.SC.Y.0102.201206T1400Z-201207T1800Z/
/O.NEW.KEKA.SE.A.0009.201207T1800Z-201208T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
220 PM PST Sat Dec 5 2020

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM SUNDAY TO 10 AM PST
MONDAY...
...HAZARDOUS SEAS WATCH IN EFFECT FROM MONDAY MORNING THROUGH
LATE MONDAY NIGHT...

* WHAT...For the first Small Craft Advisory, south winds 15 to 
  25 kt with gusts up to 30 kt and seas 6 to 8 feet. For the 
  second Small Craft Advisory, seas 9 to 13 feet expected. For 
  the Hazardous Seas Watch, very steep and hazardous seas 17 to 
  20 feet possible.

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

* WHEN...For the Small Craft Advisory, until 6 PM PST this 
  evening. For the Small Craft Advisory, from 6 AM Sunday to 10 
  AM PST Monday. For the Hazardous Seas Watch, from Monday 
  morning through late Monday night.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

Consider altering your plans to avoid possible hazardous sea
conditions.

&&

$$

PZZ450-455-060630-
/O.NEW.KEKA.SC.Y.0102.201206T2000Z-201207T1800Z/
/O.NEW.KEKA.SE.A.0009.201207T1800Z-201208T1000Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
220 PM PST Sat Dec 5 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM NOON SUNDAY TO 10 AM PST
MONDAY...
...HAZARDOUS SEAS WATCH IN EFFECT FROM MONDAY MORNING THROUGH
LATE MONDAY NIGHT...

* WHAT...For the Small Craft Advisory, north winds 5 to 15 kt 
  with gusts up to 25 kt and seas 7 to 11 feet expected. For the 
  Hazardous Seas Watch, very steep and hazardous seas 15 to 19 
  feet possible.

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

* WHEN...For the Small Craft Advisory, from noon Sunday to 10 AM 
  PST Monday. For the Hazardous Seas Watch, from Monday morning 
  through late Monday night.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Consider altering your plans to avoid possible hazardous sea
conditions.

&&

$$

PZZ475-060630-
/O.NEW.KEKA.SC.Y.0102.201206T1400Z-201207T1800Z/
/O.NEW.KEKA.SE.A.0009.201207T1800Z-201208T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
220 PM PST Sat Dec 5 2020

...SMALL CRAFT ADVISORY IN EFFECT FROM 6 AM SUNDAY TO 10 AM PST
MONDAY...
...HAZARDOUS SEAS WATCH IN EFFECT FROM MONDAY MORNING THROUGH
LATE MONDAY NIGHT...

* WHAT...For the Small Craft Advisory, north winds 10 to 20 kt 
  with gusts up to 25 kt and seas 9 to 13 feet expected. For the 
  Hazardous Seas Watch, very steep and hazardous seas 17 to 20 
  feet possible.

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

* WHEN...For the Small Craft Advisory, from 6 AM Sunday to 10 AM 
  PST Monday. For the Hazardous Seas Watch, from Monday morning 
  through late Monday night.

* IMPACTS...Very steep and hazardous seas could capsize or cause 
  damage to vessels.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Consider altering your plans to avoid possible hazardous sea
conditions.

&&

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 5, 2:16 PM PST	High Surf Advisory	EKA	Del Norte, Humboldt, Mendocino	3 days
Dec 5, 2:20 PM PST	Small Craft Advisory	EKA		49 hr
Dec 5, 2:20 PM PST	Hazardous Seas Watch	EKA		24 hr

Nearby

Small Craft Advisories in California, 2020 Every 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.