Alert archive / California / Small Craft Advisories in 2018

Small Craft Advisory 40, NWS Eureka, CA

April 20, 2018

NWS Eureka, CA issued this small craft advisory at Apr 20, 2018, 2:07 PM PDT. It took effect at Apr 21, 2018, 8:00 AM PDT. It was in force for 43 hr.

The area

The counties it named.

The facts

Issued
Apr 20, 2018, 2:07 PM PDT (21:07 UTC)
In effect from
Apr 21, 2018, 8:00 AM PDT
Expired
Apr 23, 2018, 3:00 AM PDT
In force
43 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

081 
WHUS76 KEKA 202107
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
207 PM PDT Fri Apr 20 2018

PZZ450-210515-
/O.NEW.KEKA.SC.Y.0040.180421T1800Z-180423T0400Z/
Pt St George to Cape Mendocino out 10 nm-
207 PM PDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 11 AM SATURDAY TO 9 PM PDT
SUNDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect from 11 AM Saturday to 9 PM PDT
Sunday. 

* WINDS...N 10 to 15 kt increasing to 15 to 25 kt. Isolated gusts
  up to 35 kt around Pt St George and Cape Mendocino. 

* WAVES/SEAS...Combined seas will build to 8 to 12 feet by Sunday.
 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

PZZ455-210515-
/O.NEW.KEKA.SC.Y.0040.180421T1500Z-180423T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
207 PM PDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 8 AM SATURDAY TO 9 PM PDT
SUNDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect from 8 AM Saturday to 9 PM PDT
Sunday. 

* WINDS...N 15 to 25 kt gusting up to 35 kt. Strongest gusts will
  be around Cape Mendocino.

* WAVES/SEAS...Combined seas will build to 8 to 12 feet by Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

PZZ475-210515-
/O.CON.KEKA.SC.Y.0039.000000T0000Z-180421T2200Z/
/O.CON.KEKA.GL.A.0015.180421T2200Z-180423T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
207 PM PDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT
SATURDAY...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...

* WINDS...NW to N 15 to 25 kt with gusts to 30 kt. N winds 
  strengthening to gale force during the weekend. 

* SEAS...Combined seas of 5 to 7 ft building to 8 to 11 ft 
  tonight. Higher and steeper seas expected by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

$$

PZZ470-210515-
/O.CON.KEKA.GL.A.0015.180421T2200Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
207 PM PDT Fri Apr 20 2018

...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...

* WINDS...NW 10 to 20 kt. N winds strengthening to gale force 
  during the weekend. 

* SEAS...Combined seas of 5 to 7 ft. Higher and steeper seas 
  expected by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

$$
10 follow-up statements
957 
WHUS76 KEKA 210359
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
859 PM PDT Fri Apr 20 2018

PZZ475-211200-
/O.CON.KEKA.SC.Y.0039.000000T0000Z-180421T2200Z/
/O.CON.KEKA.GL.A.0015.180421T2200Z-180423T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
859 PM PDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT
SATURDAY...
...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...

* WINDS...NW to N 15 to 25 kt with gusts to 30 kt. N winds 
  strengthening to gale force during the weekend. 

* SEAS...Combined seas of 5 to 7 ft building to 8 to 11 ft 
  tonight. Higher and steeper seas expected by late Saturday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

$$

PZZ450-211200-
/O.CON.KEKA.SC.Y.0040.180421T1800Z-180423T0400Z/
Pt St George to Cape Mendocino out 10 nm-
859 PM PDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM SATURDAY TO
9 PM PDT SUNDAY...

* WINDS...N 10 to 20 kt increasing to 15 to 25 kt. Isolated gusts
  up to 35 kt around Pt St George and Cape Mendocino. 

* WAVES/SEAS...Combined seas will build to 8 to 12 feet by 
  Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

PZZ455-211200-
/O.CON.KEKA.SC.Y.0040.180421T1500Z-180423T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
859 PM PDT Fri Apr 20 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM SATURDAY TO
9 PM PDT SUNDAY...

* WINDS...N 15 to 25 kt gusting up to 35 kt. Strongest gusts 
  will be around Cape Mendocino. 

* WAVES/SEAS...Combined seas will build to 8 to 12 feet by 
  Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$

PZZ470-211200-
/O.CON.KEKA.GL.A.0015.180421T2200Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
859 PM PDT Fri Apr 20 2018

...GALE WATCH REMAINS IN EFFECT FROM SATURDAY AFTERNOON THROUGH
SUNDAY EVENING...

* WINDS...NW 10 to 20 kt. N winds strengthening to gale force 
  during the weekend. 

* SEAS...Combined seas of 7 to 9 ft tonight. Steepening seas
  building to 13 to 15 ft by Saturday night. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Watch is issued when the risk of gale force winds of 34 to
47 knots has significantly increased, but the specific timing
and/or location is still uncertain. It is intended to provide
additional lead time for mariners who may wish to consider
altering their plans.

$$
281 
WHUS76 KEKA 211023
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
323 AM PDT Sat Apr 21 2018

PZZ470-211830-
/O.NEW.KEKA.SC.Y.0041.180421T1023Z-180421T2200Z/
/O.UPG.KEKA.GL.A.0015.180421T2200Z-180423T0700Z/
/O.NEW.KEKA.GL.W.0018.180421T2200Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
323 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 PM THIS AFTERNOON... 
...GALE WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO MIDNIGHT
SUNDAY NIGHT...

* WINDS...N increasing to 20 to 30 kt with gusts to 40 kt by late
  today.

* SEAS...Steepening seas building to 13 to 15 ft by tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ475-211830-
/O.CON.KEKA.SC.Y.0039.000000T0000Z-180421T2200Z/
/O.UPG.KEKA.GL.A.0015.180421T2200Z-180423T0700Z/
/O.NEW.KEKA.GL.W.0018.180421T2200Z-180423T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
323 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM THIS 
AFTERNOON...
...GALE WARNING IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT SUNDAY NIGHT...

* WINDS...N increasing to 20 to 30 kt by late today.

* SEAS...Steepening seas building to 12 to 14 ft by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ450-211830-
/O.CON.KEKA.SC.Y.0040.180421T1800Z-180423T0400Z/
Pt St George to Cape Mendocino out 10 nm-
323 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 11 AM THIS MORNING
TO 9 PM SUNDAY...

* WINDS...N increasing to 15 to 25 kt. Isolated gusts up to 35 kt
  around Point Saint George and Cape Mendocino. 

* SEAS...Combined seas will build to 8 to 11 feet by Sunday. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$

PZZ455-211830-
/O.CON.KEKA.SC.Y.0040.180421T1500Z-180423T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
323 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 9 PM SUNDAY...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. Strongest
  gusts will be around Cape Mendocino. 

* SEAS...Combined seas will build to 8 to 11 feet by Sunday.
 
PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$
358 
WHUS76 KEKA 211554
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
854 AM PDT Sat Apr 21 2018

PZZ470-220000-
/O.CON.KEKA.SC.Y.0041.000000T0000Z-180421T2200Z/
/O.CON.KEKA.GL.W.0018.180421T2200Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
854 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT PDT SUNDAY NIGHT...

* WINDS...N increasing to 20 to 30 kt with gusts to 40 kt by 
  late today. 

* SEAS...Steepening seas building to 13 to 15 ft by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ475-220000-
/O.CON.KEKA.SC.Y.0039.000000T0000Z-180421T2200Z/
/O.CON.KEKA.GL.W.0018.180421T2200Z-180423T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
854 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WARNING REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT PDT SUNDAY NIGHT...

* WINDS...N increasing to 20 to 30 kt by late today.

* SEAS...Steepening seas building to 12 to 14 ft by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ450-220000-
/O.CON.KEKA.SC.Y.0040.180421T1800Z-180423T0400Z/
Pt St George to Cape Mendocino out 10 nm-
854 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT SUNDAY...

* WINDS...N increasing to 15 to 25 kt. Isolated gusts up to 35 
  kt around Point Saint George and Cape Mendocino. 

* SEAS...Combined seas will build to 8 to 11 feet by Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$

PZZ455-220000-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0400Z/
Cape Mendocino to Pt Arena out 10 nm-
854 AM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 PM PDT SUNDAY...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. 
  Strongest gusts will be around Cape Mendocino. 

* SEAS...Combined seas will build to 8 to 11 feet by Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$
959 
WHUS76 KEKA 212134
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
234 PM PDT Sat Apr 21 2018

PZZ470-220545-
/O.EXP.KEKA.SC.Y.0041.000000T0000Z-180421T2200Z/
/O.CON.KEKA.GL.W.0018.180421T2200Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
234 PM PDT Sat Apr 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT SUNDAY
NIGHT...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...

* WINDS...N 20 to 30 kt with gusts to 40 kt starting this evening.

* SEAS...Steepening seas building to 13 to 15 ft by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

PZZ475-220545-
/O.EXP.KEKA.SC.Y.0039.000000T0000Z-180421T2200Z/
/O.CON.KEKA.GL.W.0018.180421T2200Z-180423T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
234 PM PDT Sat Apr 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT SUNDAY
NIGHT...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 PM PDT THIS AFTERNOON...

* WINDS...N to 20 to 30 kt with gusts to 35 kt.

* SEAS...Steepening seas building to 12 to 14 ft by tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

PZZ450-220545-
/O.EXT.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino out 10 nm-
234 PM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PDT SUNDAY
NIGHT...

* WINDS...N 15 to 25 kt. Isolated gusts up to 35 kt around Point 
  Saint George and Cape Mendocino. 

* SEAS...Combined seas will build to 8 to 11 feet by Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$

PZZ455-220545-
/O.EXT.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Cape Mendocino to Pt Arena out 10 nm-
234 PM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL MIDNIGHT PDT SUNDAY
NIGHT...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. 
  Strongest gusts will be around Cape Mendocino. 

* SEAS...Combined seas will build to 8 to 11 feet by Sunday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$
550 
WHUS76 KEKA 220343
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
843 PM PDT Sat Apr 21 2018

PZZ470-475-221145-
/O.CON.KEKA.GL.W.0018.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
843 PM PDT Sat Apr 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT SUNDAY
NIGHT...

* WINDS...N 20 to 30 kt with gusts to 40 kt through Sunday evening.

* SEAS...Combined seas around 13 feet through Sunday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

&&

$$

PZZ450-221145-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino out 10 nm-
843 PM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
SUNDAY NIGHT...

* WINDS...N 15 to 25 kt. Isolated gusts up to 35 kt around Point 
  Saint George and Cape Mendocino. 

* SEAS...Combined seas around 11 feet through Sunday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$

PZZ455-221145-
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Cape Mendocino to Pt Arena out 10 nm-
843 PM PDT Sat Apr 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
SUNDAY NIGHT...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. 
  Strongest gusts will be around Cape Mendocino. 

* SEAS...Combined seas around 11 feet through Sunday evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$
985 
WHUS76 KEKA 221019
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
319 AM PDT Sun Apr 22 2018

PZZ450-221830-
/O.NEW.KEKA.SE.W.0007.180422T1019Z-180423T0700Z/
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino out 10 nm-
319 AM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL MIDNIGHT TONIGHT... 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT  
TONIGHT...

* WINDS...N 15 to 25 kt. Isolated gusts up to 35 kt around Point 
Saint George and Cape Mendocino.

* SEAS...Combined seas around 11 ft through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$

PZZ455-221830-
/O.NEW.KEKA.SE.W.0007.180422T1019Z-180423T0700Z/
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Cape Mendocino to Pt Arena out 10 nm-
319 AM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL MIDNIGHT TONIGHT... 
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT 
TONIGHT...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt.  
Strongest gusts will be around Cape Mendocino.

* SEAS...Combined seas around 11 feet through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$

PZZ470-475-221830-
/O.CON.KEKA.GL.W.0018.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
319 AM PDT Sun Apr 22 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT TONIGHT...

* WINDS...N 20 to 30 kt with gusts to 40 kt through this evening.

* SEAS...Combined seas around 13 feet through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$
975 
WHUS76 KEKA 221602
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
902 AM PDT Sun Apr 22 2018

PZZ470-475-230015-
/O.CON.KEKA.GL.W.0018.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
902 AM PDT Sun Apr 22 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...

* WINDS...N 20 to 30 kt with gusts to 40 kt through this evening.

* SEAS...Combined seas around 13 feet through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ450-230015-
/O.CON.KEKA.SE.W.0007.000000T0000Z-180423T0700Z/
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino out 10 nm-
902 AM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

* WINDS...N 15 to 25 kt. Isolated gusts up to 35 kt around Point 
  Saint George and Cape Mendocino.

* SEAS...Combined seas around 11 ft through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$

PZZ455-230015-
/O.CON.KEKA.SE.W.0007.000000T0000Z-180423T0700Z/
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Cape Mendocino to Pt Arena out 10 nm-
902 AM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. 
  Strongest gusts will be around Cape Mendocino.

* SEAS...Combined seas around 11 feet through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$
880 
WHUS76 KEKA 222138
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
238 PM PDT Sun Apr 22 2018

PZZ470-475-230545-
/O.CON.KEKA.GL.W.0018.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
238 PM PDT Sun Apr 22 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...

* WINDS...N 20 to 30 kt with gusts to 40 kt through this evening.

* SEAS...Combined seas around 13 feet through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ450-230545-
/O.CON.KEKA.SE.W.0007.000000T0000Z-180423T0700Z/
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Pt St George to Cape Mendocino out 10 nm-
238 PM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

* WINDS...N 15 to 25 kt. Isolated gusts up to 35 kt around Point 
  Saint George and Cape Mendocino. 

* SEAS...Combined seas around 11 ft through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$

PZZ455-230545-
/O.CON.KEKA.SE.W.0007.000000T0000Z-180423T0700Z/
/O.CON.KEKA.SC.Y.0040.000000T0000Z-180423T0700Z/
Cape Mendocino to Pt Arena out 10 nm-
238 PM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT
TONIGHT...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. 
  Strongest gusts will be around Cape Mendocino. 

* SEAS...Combined seas around 11 feet through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$
823 
WHUS76 KEKA 230334
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
834 PM PDT Sun Apr 22 2018

PZZ470-475-231000-
/O.EXT.KEKA.GL.W.0018.000000T0000Z-180423T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
834 PM PDT Sun Apr 22 2018

...GALE WARNING NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

* WINDS...N 20 to 30 kt with gusts to 40 kt...diminishing
  overnight.

* SEAS...Combined seas around 13 feet...diminishing overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Gale Warning means winds of 34 to 47 knots are imminent or
occurring. Operating a vessel in gale conditions requires
experience and properly equipped vessels. It is highly
recommended that mariners without the proper experience seek safe
harbor prior to the onset of gale conditions.

$$

PZZ450-231000-
/O.EXT.KEKA.SE.W.0007.000000T0000Z-180423T1000Z/
/O.EXT.KEKA.SC.Y.0040.000000T0000Z-180423T1000Z/
Pt St George to Cape Mendocino out 10 nm-
834 PM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 3 AM PDT MONDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

* WINDS...N 15 to 25 kt. Isolated gusts up to 35 kt around Point
  Saint George and Cape Mendocino. Winds diminishing overnight. 

* SEAS...Combined seas around 11 ft...diminishing overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$

PZZ455-231000-
/O.EXT.KEKA.SE.W.0007.000000T0000Z-180423T1000Z/
/O.EXT.KEKA.SC.Y.0040.000000T0000Z-180423T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
834 PM PDT Sun Apr 22 2018

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 3 AM PDT MONDAY...
...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT MONDAY...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt. Strongest
  gusts will be around Cape Mendocino. Winds diminishing
  overnight.

* SEAS...Combined seas around 11 feet...diminishing overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

A Hazardous Seas Warning means hazardous sea conditions are
imminent or occurring. Recreational boaters should remain in
port, or take shelter until waves subside.  Commercial vessels
should prepare for rough seas and consider remaining in port or
taking shelter in port until hazardous seas subside.

$$
606 
WHUS76 KEKA 231003
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
303 AM PDT Mon Apr 23 2018

PZZ470-475-231600-
/O.EXP.KEKA.GL.W.0018.000000T0000Z-180423T1000Z/
/O.NEW.KEKA.SC.Y.0042.180423T1003Z-180423T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
303 AM PDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM THIS MORNING...
...GALE WARNING IS CANCELLED...

* WINDS...N 20 to 25 kt early this morning. 

* SEAS...Combined seas 9 to 11 ft this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners, especially those operating smaller
vessels should avoid navigating in these conditions.

$$

PZZ450-231600-
/O.EXP.KEKA.SE.W.0007.000000T0000Z-180423T1000Z/
/O.EXP.KEKA.SC.Y.0040.000000T0000Z-180423T1000Z/
/O.NEW.KEKA.SC.Y.0042.180423T1003Z-180423T1600Z/
Pt St George to Cape Mendocino out 10 nm-
303 AM PDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM THIS MORNING...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WINDS...N 15 kt.  

* SEAS...Combined seas around 8 ft this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that hazardous wave conditions will
exist for small craft. Inexperienced mariners, especially those
operating smaller vessels, should avoid navigating in these
conditions.

$$

PZZ455-231600-
/O.EXP.KEKA.SE.W.0007.000000T0000Z-180423T1000Z/
/O.EXP.KEKA.SC.Y.0040.000000T0000Z-180423T1000Z/
/O.NEW.KEKA.SC.Y.0042.180423T1003Z-180423T1600Z/
Cape Mendocino to Pt Arena out 10 nm-
303 AM PDT Mon Apr 23 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM THIS MORNING...
...HAZARDOUS SEAS WARNING IS CANCELLED...

* WINDS...N 15 kt. 

* SEAS...Combined seas around 8 feet this morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that hazardous wave conditions will
exist for small craft. Inexperienced mariners, especially those
operating smaller vessels, should avoid navigating in these
conditions.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 20, 3:35 AM PDTGale WatchEKA24 hr

Nearby

Small Craft Advisories in California, 2018Every small craft advisory in 2018

Sources

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