Alert archive / California / Hazardous Seas Warnings in 2019

Hazardous Seas Warning 13, NWS Eureka, CA

May 20, 2019

NWS Eureka, CA issued this hazardous seas warning at May 20, 2019, 3:01 PM PDT. It took effect at May 21, 2019, 6:00 AM PDT. It was in force for 36 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
May 20, 2019, 3:01 PM PDT (22:01 UTC)
In effect from
May 21, 2019, 6:00 AM PDT
Expired
May 22, 2019, 6:00 PM PDT
In force
36 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

539 
WHUS76 KEKA 202201
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
301 PM PDT Mon May 20 2019

PZZ475-210615-
/O.EXT.KEKA.SC.Y.0060.190521T0400Z-190521T1300Z/
/O.UPG.KEKA.SE.A.0003.190521T1000Z-190522T1000Z/
/O.NEW.KEKA.SE.W.0013.190521T1300Z-190522T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
301 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING TO
6 AM PDT TUESDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 6 AM TO 9 PM PDT
TUESDAY...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect from 6 AM to 9 PM PDT Tuesday.
The Hazardous Seas Watch is no longer in effect. 

* WINDS...SW 10 to 20 kt becoming W to NW 20 to 30 kt Tuesday
night and Wednesday.

* WAVES...W 8 to 9 feet at 12 seconds building to 17 to 19 ft at
  14 seconds by late Tuesday morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

PZZ470-210615-
/O.EXT.KEKA.SC.Y.0059.000000T0000Z-190521T1300Z/
/O.NEW.KEKA.SE.W.0013.190521T1300Z-190522T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
301 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 AM PDT TUESDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 6 AM TO 9 PM PDT
TUESDAY...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect from 6 AM to 9 PM PDT Tuesday. 

* WINDS...S to SW 15 to 25 kt. Winds shifting to NW late tonight
  and and Tuesday.

* WAVES...W 8 to 10 feet at 11 seconds building to 16 to 20 ft at
  14 seconds by Tuesday 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.

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.

&&

$$

PZZ450-210615-
/O.CON.KEKA.SC.Y.0059.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
301 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...S increasing to 15 to 25 kt this afternoon. Winds 
  shifting to NW and increasing to 20 to 30 kt by Wednesday. 

* WAVES...W 8 to 10 feet at 11 seconds building to 15 to 18 ft 
  Tuesday afternoon.

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.

$$

PZZ455-210615-
/O.CON.KEKA.SC.Y.0060.190521T0400Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
301 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 9 PM THIS EVENING
TO 3 AM PDT FRIDAY...

* WINDS...SW 5 to 15 kt becoming W to NW 15 to 25 kt by Tuesday.

* WAVES...W 8 to 10 feet at 11 seconds building to 15 to 18 ft 
  Tuesday afternoon.

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.

$$
11 follow-up statements
060 
WHUS76 KEKA 210404
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
904 PM PDT Mon May 20 2019

PZZ470-211215-
/O.CON.KEKA.SC.Y.0059.000000T0000Z-190521T1300Z/
/O.CON.KEKA.SE.W.0013.190521T1300Z-190522T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
904 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT
TUESDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 6 AM TO 9 PM PDT
TUESDAY...

* WINDS...S to SW 15 to 25 kt. Winds shifting to W late tonight
  and WNW on Tuesday. 

* WAVES...W 8 to 10 feet at 11 seconds building to 16 to 20 ft at
  14 seconds by Tuesday 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.

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.

&&

$$

PZZ475-211215-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190521T1300Z/
/O.CON.KEKA.SE.W.0013.190521T1300Z-190522T0400Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
904 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM PDT
TUESDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 6 AM TO 9 PM PDT
TUESDAY...

* WINDS...SW 10 to 20 kt becoming W to NW 15 to 25 kt late tonight
  into Tuesday.

* WAVES...W 8 to 9 feet at 12 seconds building to 17 to 19 ft at 
  14 seconds by late Tuesday morning. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

PZZ450-211215-
/O.CON.KEKA.SC.Y.0059.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
904 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...S 15 to 25 kt. Winds shifting to WNW on Tuesday, then NW
  on Wednesday while increasing to 20 to 30 kt. 

* WAVES...W 8 to 10 feet at 11 seconds building to 15 to 18 ft on
  Tuesday.

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.

$$

PZZ455-211215-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
904 PM PDT Mon May 20 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...SW 5 to 15 kt becoming W to NW 15 to 25 kt on Tuesday.

* WAVES...W 8 to 10 feet at 11 seconds building to 15 to 18 ft
  Tuesday. 

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.

$$
483 
WHUS76 KEKA 211008
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
308 AM PDT Tue May 21 2019

PZZ475-211815-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190521T1300Z/
/O.EXT.KEKA.SE.W.0013.190521T1300Z-190522T1300Z/
/O.NEW.KEKA.GL.W.0023.190522T1300Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
308 AM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EARLY THIS 
MORNING... 
...HAZARDOUS SEAS WARNING NOW IN EFFECT FROM 6 AM THIS 
MORNING TO 6 AM WEDNESDAY... 
...GALE WARNING IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT 
THURSDAY NIGHT...

* WINDS...W to NW 20 to 25 kt becoming N 25 to 35 kt on 
  Wednesday.

* WAVES...W building to 16 to 18 ft at 14 seconds by late 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.

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.

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.

$$

PZZ470-211815-
/O.CON.KEKA.SC.Y.0059.000000T0000Z-190521T1300Z/
/O.CON.KEKA.SE.W.0013.190521T1300Z-190522T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
308 AM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 6 AM EARLY THIS 
MORNING... 
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 6 AM THIS 
MORNING TO 9 PM THIS EVENING...

* WINDS...W to NW 15 to 25 kt becoming N 25 to 30 kt by Wednesday.

* WAVES...W building to 16 to 18 ft at 14 seconds by late 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.

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.

$$

PZZ450-211815-
/O.CON.KEKA.SC.Y.0059.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
308 AM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM FRIDAY...

* WINDS...W 10 to 20 kt becoming NW to N 15 to 25 kt with gusts 
  to 30 kt tonight. 

* WAVES...W building to 15 to 17 ft at 14 seconds by late 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.

$$

PZZ455-211815-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
308 AM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM FRIDAY...

* WINDS...W to NW 15 to 20 kt becoming NW 20 to 30 kt with
  occasional gusts to 35 kt by Wednesday.

* WAVES...W building to 15 to 17 ft at 14 seconds by late 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.

$$
710 
WHUS76 KEKA 211522
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
822 AM PDT Tue May 21 2019

PZZ475-212330-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T1300Z/
/O.CON.KEKA.GL.W.0023.190522T1300Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
822 AM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 AM PDT
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT
PDT THURSDAY NIGHT...

* WINDS...W to NW 20 to 25 kt becoming N 25 to 35 kt on 
  Wednesday. 

* WAVES...W 16 to 18 ft at 13 seconds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ470-212330-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
822 AM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...

* WINDS...W to NW 15 to 25 kt becoming N 25 to 30 kt by 
  Wednesday.

* WAVES...W building to 15 to 20 ft at 13 seconds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

$$

PZZ450-212330-
/O.CON.KEKA.SC.Y.0059.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
822 AM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...W 10 to 20 kt becoming NW to N 15 to 25 kt with gusts 
  to 30 kt tonight. 

* WAVES...W building to 14 to 17 ft at 13 seconds by late 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.

$$

PZZ455-212330-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
822 AM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...W to NW 15 to 20 kt becoming NW 20 to 30 kt with
  occasional gusts to 35 kt during Wednesday. 

* WAVES...W building to 14 to 17 ft at 13 seconds by late 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.

$$
679 
WHUS76 KEKA 211943
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
1243 PM PDT Tue May 21 2019

PZZ470-220345-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T0400Z/
/O.NEW.KEKA.GL.W.0024.190522T0400Z-190522T1300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1243 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS
EVENING...
...GALE WARNING IN EFFECT FROM 9 PM THIS EVENING TO 6 AM PDT
WEDNESDAY...

The National Weather Service in Eureka has issued a Gale Warning,
which is in effect from 9 PM this evening to 6 AM PDT Wednesday. 

* WINDS...W to NW 15 to 25 kt becoming N 25 to 30 kt with gusts to
  35 kt tonight.

* WAVES...W building to 17 to 21 ft at 13 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

PZZ450-220345-
/O.UPG.KEKA.SC.Y.0059.000000T0000Z-190524T1000Z/
/O.EXB.KEKA.SE.W.0013.000000T0000Z-190522T0300Z/
Pt St George to Cape Mendocino out 10 nm-
1243 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 8 PM PDT THIS EVENING...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect until 8 PM PDT this evening. The
Small Craft Advisory is no longer in effect. 

* WINDS...W 10 to 20 kt becoming NW 15 to 25 kt with gusts to 30 
  kt tonight. 

* WAVES...W 18 ft at 12 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ475-220345-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T1300Z/
/O.CON.KEKA.GL.W.0023.190522T1300Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1243 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 AM PDT
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 6 AM WEDNESDAY TO MIDNIGHT
PDT THURSDAY NIGHT...

* WINDS...W to NW 20 to 25 kt becoming N 25 to 35 kt on 
  Wednesday. 

* WAVES...W 17 to 21 ft at 13 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ455-220345-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
1243 PM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...W to NW 15 to 20 kt becoming NW 20 to 30 kt with 
  occasional gusts to 35 kt during Wednesday. 

* WAVES...W building to 15 to 20 ft at 13.

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.

$$
318 
WHUS76 KEKA 212108
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
208 PM PDT Tue May 21 2019

PZZ470-220515-
/O.EXT.KEKA.SE.W.0013.000000T0000Z-190522T0600Z/
/O.EXT.KEKA.GL.W.0024.190522T0600Z-190522T1200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
208 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...GALE WARNING NOW IN EFFECT FROM 11 PM THIS EVENING TO 5 AM PDT
WEDNESDAY...

* WINDS...NW 20 to 25 kt with gusts to 35 kt. 

* WAVES...W 17 to 21 ft at 12 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

PZZ475-220515-
/O.EXT.KEKA.SE.W.0013.000000T0000Z-190522T1200Z/
/O.EXT.KEKA.GL.W.0023.190522T1200Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
208 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 5 AM PDT
WEDNESDAY...
...GALE WARNING NOW IN EFFECT FROM 5 AM WEDNESDAY TO MIDNIGHT PDT
THURSDAY NIGHT...

* WINDS...NW 20 to 30 kt with gusts to 40 kt. 

* WAVES...W 17 to 21 ft at 13 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ450-220300-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T0300Z/
Pt St George to Cape Mendocino out 10 nm-
208 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS
EVENING...

* WINDS...NW 15 to 25 kt. 

* WAVES...W 17 ft at 11 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ455-220515-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
208 PM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...NW 15 to 25 kt with occasional gusts to 35 kt during 
  Wednesday. 

* WAVES...W building to 15 to 20 ft at 13.

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.

$$
980 
WHUS76 KEKA 220253
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
753 PM PDT Tue May 21 2019

PZZ450-220600-
/O.EXT.KEKA.SE.W.0013.000000T0000Z-190522T0600Z/
Pt St George to Cape Mendocino out 10 nm-
753 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

* WINDS...NW 15 to 25 kt.

* WAVES...W 17 ft at 11 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ470-221100-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T0600Z/
/O.CON.KEKA.GL.W.0024.190522T0600Z-190522T1200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
753 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 11 PM THIS EVENING TO 5 AM
PDT WEDNESDAY...

* WINDS...NW 20 to 25 kt with gusts to 35 kt.

* WAVES...W 17 to 21 ft at 12 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

PZZ475-221100-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T1200Z/
/O.CON.KEKA.GL.W.0023.190522T1200Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
753 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM PDT
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO MIDNIGHT
PDT THURSDAY NIGHT...

* WINDS...NW 20 to 30 kt with gusts to 40 kt.

* WAVES...W 17 to 21 ft at 13 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ455-221100-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
753 PM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...NW 15 to 25 kt with occasional gusts to 35 kt during 
  Wednesday. 

* WAVES...W building to 15 to 20 ft at 13.

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.

$$
106 
WHUS76 KEKA 220612
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
1112 PM PDT Tue May 21 2019

PZZ470-221200-
/O.EXP.KEKA.SE.W.0013.000000T0000Z-190522T0600Z/
/O.CON.KEKA.GL.W.0024.000000T0000Z-190522T1200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
1112 PM PDT Tue May 21 2019

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

* WINDS...NW 20 to 25 kt with gusts to 35 kt.

* WAVES...W 16 to 19 ft at 12 seconds.

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.

&&

$$

PZZ450-221415-
/O.EXP.KEKA.SE.W.0013.000000T0000Z-190522T0600Z/
/O.EXB.KEKA.SC.Y.0060.000000T0000Z-190523T1200Z/
Pt St George to Cape Mendocino out 10 nm-
1112 PM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 5 AM PDT THURSDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 5 AM PDT Thursday. 

* WINDS...NW 15 to 25 kt with occasional gusts to 35 kt during 
  Wednesday. 

* WAVES...W building to 12 to 15 ft at 13.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ475-221415-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T1200Z/
/O.CON.KEKA.GL.W.0023.190522T1200Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
1112 PM PDT Tue May 21 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM PDT
WEDNESDAY...
...GALE WARNING REMAINS IN EFFECT FROM 5 AM WEDNESDAY TO MIDNIGHT
PDT THURSDAY NIGHT...

* WINDS...NW 20 to 30 kt with gusts to 40 kt.

* WAVES...W 17 to 21 ft at 13 seconds.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ455-221415-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
1112 PM PDT Tue May 21 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...NW 15 to 25 kt with occasional gusts to 35 kt during 
  Wednesday. 

* WAVES...W building to 15 to 20 ft at 13.

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.

$$
019 
WHUS76 KEKA 221018
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
318 AM PDT Wed May 22 2019

PZZ470-221830-
/O.CAN.KEKA.GL.W.0024.000000T0000Z-190522T1200Z/
/O.EXB.KEKA.SE.W.0013.190522T1018Z-190523T0100Z/
/O.EXB.KEKA.GL.W.0023.190523T0100Z-190524T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
318 AM PDT Wed May 22 2019

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 6 PM THIS EVENING... 
...GALE WARNING IN EFFECT FROM 6 PM THIS EVENING TO MIDNIGHT 
THURSDAY NIGHT...

* WINDS...N 25 to 30 kt. Gusts to 35 kt tonight and Thursday.

* WAVES...N 10 to 12 ft at 8 seconds. W to NW swell 9 ft at 12
  seconds today subsiding tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ475-221830-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190522T1200Z/
/O.CON.KEKA.GL.W.0023.190522T1200Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
318 AM PDT Wed May 22 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 5 AM EARLY THIS
MORNING... 
...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT THURSDAY 
NIGHT...

* WINDS...N increasing to 25 to 30 kt with gusts to 40 kt.

* WAVES...N 11 to 13 ft at 10 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding tonight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ450-221830-
/O.EXT.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
318 AM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM FRIDAY...

* WINDS...N 15 to 25 kt with gusts to 30 kt. 

* WAVES...N 8 to 10 ft at 8 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding 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.

$$

PZZ455-221830-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
318 AM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM FRIDAY...

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

* WAVES...NW 9 to 11 ft at 9 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding 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.

$$
692 
WHUS76 KEKA 221544
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
844 AM PDT Wed May 22 2019

PZZ470-222345-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190523T0100Z/
/O.CON.KEKA.GL.W.0023.190523T0100Z-190524T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
844 AM PDT Wed May 22 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT PDT THURSDAY NIGHT...

* WINDS...N 25 to 30 kt. Gusts to 35 kt tonight and Thursday.

* WAVES...N 10 to 12 ft at 8 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ475-222345-
/O.CON.KEKA.GL.W.0023.000000T0000Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
844 AM PDT Wed May 22 2019

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

* WINDS...N increasing to 25 to 30 kt with gusts to 40 kt.

* WAVES...N 11 to 13 ft at 10 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ450-222345-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
844 AM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...N 15 to 25 kt with gusts to 30 kt.

* WAVES...N 8 to 10 ft at 8 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding 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.

$$

PZZ455-222345-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
844 AM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

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

* WAVES...NW 9 to 11 ft at 9 seconds. W to NW swell 9 ft at 12 
  seconds today subsiding 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.

$$
988 
WHUS76 KEKA 222201
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
301 PM PDT Wed May 22 2019

PZZ470-230615-
/O.CON.KEKA.SE.W.0013.000000T0000Z-190523T0100Z/
/O.CON.KEKA.GL.W.0023.190523T0100Z-190524T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
301 PM PDT Wed May 22 2019

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...
...GALE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING TO
MIDNIGHT PDT THURSDAY NIGHT...

* WINDS...N 25 to 30 kt. Gusts to 35 kt tonight and Thursday.

* WAVES...N 10 to 12 ft at 8 seconds. W to NW swell 7 ft at 10 
  seconds today subsiding tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ475-230615-
/O.CON.KEKA.GL.W.0023.000000T0000Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
301 PM PDT Wed May 22 2019

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

* WINDS...N 25 to 30 kt with gusts to 40 kt.

* WAVES...N 11 to 13 ft at 10 seconds. W to NW swell 7 ft at 10 
  seconds today subsiding tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ450-230615-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
301 PM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...N 15 to 25 kt with gusts to 30 kt.

* WAVES...N 8 to 10 ft at 8 seconds. W to NW swell 6 ft at 10 
  seconds today subsiding 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.

$$

PZZ455-230615-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
301 PM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

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

* WAVES...NW 9 to 11 ft at 9 seconds. W to NW swell 6 ft at 11 
  seconds today subsiding 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.

$$
681 
WHUS76 KEKA 230103
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
603 PM PDT Wed May 22 2019

PZZ470-230915-
/O.EXP.KEKA.SE.W.0013.000000T0000Z-190523T0100Z/
/O.CON.KEKA.GL.W.0023.000000T0000Z-190524T0700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
603 PM PDT Wed May 22 2019

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

* WINDS...N 25 to 30 kt. Gusts to 35 kt tonight and Thursday.

* WAVES...N 10 to 12 ft at 8 seconds. W to NW swell 7 ft at 10 
  seconds today subsiding 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.

&&

$$

PZZ475-230915-
/O.CON.KEKA.GL.W.0023.000000T0000Z-190524T0700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
603 PM PDT Wed May 22 2019

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

* WINDS...N 25 to 30 kt with gusts to 40 kt.

* WAVES...N 11 to 13 ft at 10 seconds. W to NW swell 7 ft at 10 
  seconds today subsiding tonight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

$$

PZZ450-230915-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Pt St George to Cape Mendocino out 10 nm-
603 PM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

* WINDS...N 15 to 25 kt with gusts to 30 kt.

* WAVES...N 8 to 10 ft at 8 seconds. W to NW swell 6 ft at 10 
  seconds today subsiding 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.

$$

PZZ455-230915-
/O.CON.KEKA.SC.Y.0060.000000T0000Z-190524T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
603 PM PDT Wed May 22 2019

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PDT FRIDAY...

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

* WAVES...NW 9 to 11 ft at 9 seconds. W to NW swell 6 ft at 11 
  seconds today subsiding 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.

$$

What forecasters said that day

The local office's own words before this hazardous seas warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Eureka, CA wrote its last area forecast discussion before this hazardous seas warning went out at May 20, 5:20 AM PDT, 9 hours 41 minutes earlier.

Area forecast discussion, May 20, 5:20 AM PDT, 9 hours 41 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
520 AM PDT Mon May 20 2019

.SYNOPSIS...Another Spring storm will generate widespread showers
and high mountain snow above 5500 feet tonight through Tuesday.
Blustery westerly and northwesterly winds are also expected,
especially over the exposed higher elevations and mountain peaks.
Drier weather and brisk northerly winds are expected around mid week.

&&

.DISCUSSION...Today will be mostly dry as a weak shortwave ridge
transitions across the area this morning. Another vigorous upper
trough will rapidly approach the north coast this afternoon and
generate some precip late in the day. Widespread showers will
then overspread the region this evening as a 130kt westerly jet
dips southward across northern California. Moist westerly flow
will be favorable for upslope precipitation generation in the
hills and mountains of Humboldt and Del Norte counties. The
greater Eureka area will receive more prolific rain fall with this
system compared to the weekend storm that went south. Moist
westerly flow, widespread showers and blustery westerly winds will
persist into Tuesday. Cold air aloft will also create an
environment favorable for thunderstorms. The best chances appear
to be along the Del Norte county coast tonight where a shortwave
trough amplifies off the Oregon coast. Be ready for wet and
occasional blustery weather through Tuesday. Also, if headed to
the high country, be ready for some heavy wet snow. A foot of snow
will be possible above 5500 feet in the Trinity mountains tonight
through Tuesday.

The spell of wet weather and below normal interior temperatures
will moderate around mid week as the flow aloft amplifies. A
large closed low aloft will shift to our south and southeast while
high pressure builds toward the west coast. This pressure pattern
will be a good SETUP for gusty northerly winds at the coast and
over the mountain peaks. THE BLEND, NAEFS and ECMWF ENS indicate
another shortwave trough dropping southward over the area next
weekend. This shortwave may put a damper on the warming and
produce additional shower activity, primarily over the interior.

&&

.AVIATION...Low clouds have expanded across much of the interior, as
well as along portions of the Redwood Coast and the adjacent coastal
waters. Ceiling heights are presently running around 1500 ft, and
minimal visibility reductions are noted. Clouds are forecast to thin
later this morning with daytime heating, but an approaching frontal
system will bring increasing clouds back into the picture by mid
afternoon and light rain by evening.

Winds are expected to be generally light through much of the day,
but low-level S to SW winds will increase before sunset with the
potential for gusty surface winds and/or some low-level wind shear.
/SEC

&&

.MARINE...Winds will back and become southerly today ahead of
another approaching frontal system. Wind speeds will reach advisory
levels over at least the N waters by late today, with winds shifting
to NW on Tuesday. Northerlies will continue to increase through mid-
week with gale force gusts possible.

In additions to increasing short period local wind waves, larger W
mid-period swell will build into the waters tonight and early
Tuesday, with combined seas peaking near 20 ft. Have continued the
Hazardous Seas Watch for the S outer waters starting around midnight
tonight. This will probably be upgraded to a warning later today.
Surf heights along the NW California coast will approach 20 ft as
well, just below High Surf Advisory criteria. /SEC

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...None.
NORTHWEST CALIFORNIA COASTAL WATERS...Small Craft Advisory from 3 PM this afternoon to 3 AM PDT Friday
     for PZZ450.

     Small Craft Advisory from 3 PM this afternoon to 9 AM PDT Friday
     for PZZ470.

     Small Craft Advisory from 3 AM Tuesday to 3 AM PDT Friday for
     PZZ455.

     Small Craft Advisory from 9 PM this evening to 3 AM PDT Tuesday
     for PZZ475.

     Hazardous Seas Watch from late tonight through late Tuesday
     night for PZZ475.

&&

Visit us at http://www.weather.gov/eureka

Follow us on Facebook and Twitter at:
http://www.facebook.com/NWSEureka
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For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.png
Hazardous weather outlook, May 20, 3:58 AM PDT, 11 hours 3 minutes before
Hazardous Weather Outlook
National Weather Service Eureka CA
358 AM PDT Mon May 20 2019

CAZ101>113-211100-
Coastal Del Norte-Del Norte Interior-Northern Humboldt Coast-
Southwestern Humboldt-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Mendocino Coast-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
358 AM PDT Mon May 20 2019

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

Another late Spring storm system will generate widespread
showers, high mountain snow showers above 5500 feet and blustery
westerly to northwesterly winds tonight.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

A Spring storm system will continue to generate widespread showers,
high mountain snow showers above 5500 feet and blustery westerly to
northwesterly winds on Tuesday.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 9:09 PM PDTSmall Craft AdvisoryEKA40 hr
May 19, 9:09 PM PDTHazardous Seas WatchEKA18 hr
May 20, 1:01 PM PDTSmall Craft AdvisoryEKA7 days

Nearby

Hazardous Seas Warnings in California, 2019Every hazardous seas warning in 2019

Sources

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