Alert archive / California / Small Craft Advisories in 2018

Small Craft Advisory 49, NWS Eureka, CA

May 12, 2018

NWS Eureka, CA issued this small craft advisory at May 12, 2018, 2:46 AM PDT. It was in force for 30 hr.

The area

The counties it named.

The facts

Issued
May 12, 2018, 2:46 AM PDT (09:46 UTC)
Expired
May 13, 2018, 9:00 AM PDT
In force
30 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

646 
WHUS76 KEKA 120946
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
246 AM PDT Sat May 12 2018

PZZ450-121800-
/O.CAN.KEKA.GL.W.0020.000000T0000Z-180512T1600Z/
/O.NEW.KEKA.SE.W.0009.180512T0946Z-180512T2200Z/
Pt St George to Cape Mendocino out 10 nm-
246 AM PDT Sat May 12 2018

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...
...GALE WARNING IS CANCELLED...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect until 3 PM PDT this afternoon.
The Gale Warning has been cancelled. 

* Winds...Northerly 15 to 25 KT diminishing tonight. Local gusts
  to 35 KT near Pt St George.

* SEAS...Steep, 10 to 14 ft. These will begin to slowly diminish
  through the afternoon.

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.

&&

$$

PZZ455-121800-
/O.CAN.KEKA.GL.W.0020.000000T0000Z-180512T1600Z/
/O.NEW.KEKA.SC.Y.0049.180512T0946Z-180513T0900Z/
Cape Mendocino to Pt Arena out 10 nm-
246 AM PDT Sat May 12 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM PDT SUNDAY...
...GALE WARNING IS CANCELLED...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 2 AM PDT Sunday. The Gale
Warning has been cancelled. 

* WINDS...Sustained north winds 25 kt with local gusts to 35 kt
  near Cape Mendocino. Winds will diminish and become southerly
  late tonight. 

* SEAS...Steep, 9 to 11 ft at 10 seconds. These will begin to 
  slowly diminish through 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.

&&

$$

PZZ470-121800-
/O.CON.KEKA.GL.W.0020.000000T0000Z-180513T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
246 AM PDT Sat May 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* WINDS...North 25 to 30 with gusts 35 kt. These will diminish
  this evening.

* SEAS...Steep at around 12 to 14 ft. These will start to diminish
  during the overnight hours. 

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.

&&

$$

PZZ475-121600-
/O.CON.KEKA.GL.W.0020.000000T0000Z-180512T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
246 AM PDT Sat May 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 AM PDT THIS MORNING...

* WINDS...Sustained north winds 25 to 30 kt with gusts to 35 kt
  this morning diminishing to 15 to 25 kt this afternoon. 

* SEAS...Steep at around 12 to 14 ft. These will begin to slowly
  diminish this afternoon and tonight.

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.

&&

$$
4 follow-up statements
233 
WHUS76 KEKA 121600
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
900 AM PDT Sat May 12 2018

PZZ475-130000-
/O.EXP.KEKA.GL.W.0020.000000T0000Z-180512T1600Z/
/O.EXB.KEKA.SE.W.0009.180512T1600Z-180513T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
900 AM PDT Sat May 12 2018

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 3 AM PDT SUNDAY...
...GALE WARNING WILL EXPIRE AT 9 AM PDT THIS MORNING...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect until 3 AM PDT Sunday. 

* WINDS...Sustained north winds 20 to 25 kt with local gusts to 35
  kt. 

* SEAS...Steep seas at around 12 to 14 ft at 10 seconds. These
  will begin to diminish 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.

&&

$$

PZZ470-130000-
/O.CON.KEKA.GL.W.0020.000000T0000Z-180513T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
900 AM PDT Sat May 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* WINDS...North 25 to 30 with gusts 35 kt. These will diminish 
  this evening. 

* SEAS...Steep at around 12 to 14 ft. These will start to 
  diminish during the overnight hours. 

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.

&&

$$

PZZ450-122200-
/O.CON.KEKA.SE.W.0009.000000T0000Z-180512T2200Z/
Pt St George to Cape Mendocino out 10 nm-
900 AM PDT Sat May 12 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS
AFTERNOON...

* Winds...Northerly 15 to 25 KT diminishing tonight. Local gusts 
  to 35 KT near Pt St George. 

* SEAS...Steep, 10 to 14 ft at 8 to 10 seconds. These will begin
  to diminish heading into this evening. 

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.

&&

$$

PZZ455-130000-
/O.EXT.KEKA.SC.Y.0049.000000T0000Z-180513T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
900 AM PDT Sat May 12 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 3 AM PDT SUNDAY...

* WINDS...Sustained north winds 15 to 25 kt with local gusts to 
  35 kt near Cape Mendocino. Winds will diminish and become 
  southerly late tonight. 

* SEAS...Steep, 9 to 11 ft at 10 seconds, highest near Cape
  Mendocino. These will begin to slowly diminish 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.

&&

$$
408 
WHUS76 KEKA 122150
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
250 PM PDT Sat May 12 2018

PZZ450-130600-
/O.EXP.KEKA.SE.W.0009.000000T0000Z-180512T2200Z/
/O.EXB.KEKA.SC.Y.0049.180512T2200Z-180513T1000Z/
Pt St George to Cape Mendocino out 10 nm-
250 PM PDT Sat May 12 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PDT SUNDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 3 AM PDT Sunday. 

* WINDS...Sustained north winds 15 to 25 kt with local gusts to 
  35 kt near Cape Mendocino. Winds will diminish and become 
  southerly late tonight. 

* SEAS...Steep, 8 to 10 ft at 9 seconds, highest near Cape 
  Mendocino. These will begin to slowly diminish 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.

&&

$$

PZZ470-130400-
/O.CON.KEKA.GL.W.0020.000000T0000Z-180513T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
250 PM PDT Sat May 12 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 9 PM PDT THIS EVENING...

* WINDS...North 25 to 30 with gusts 35 kt. These will diminish 
  this evening. 

* SEAS...Steep at around 12 to 14 ft. These will start to 
  diminish during the overnight hours. 

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.

&&

$$

PZZ475-130600-
/O.CON.KEKA.SE.W.0009.000000T0000Z-180513T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
250 PM PDT Sat May 12 2018

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

* WINDS...Sustained north winds 20 to 25 kt with local gusts to 
  35 kt. 

* SEAS...Steep seas around 12 to 14 ft at 10 seconds. These will 
  begin to diminish 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.

&&

$$

PZZ455-130600-
/O.CON.KEKA.SC.Y.0049.000000T0000Z-180513T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
250 PM PDT Sat May 12 2018

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

* WINDS...Sustained north winds 15 to 25 kt with local gusts to 
  35 kt near Cape Mendocino. Winds will diminish and become 
  southerly late tonight. 

* SEAS...Steep, 8 to 10 ft at 9 seconds, highest near Cape 
  Mendocino. These will begin to slowly diminish 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.

&&

$$
840 
WHUS76 KEKA 130342
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
842 PM PDT Sat May 12 2018

PZZ475-131000-
/O.CAN.KEKA.SE.W.0009.000000T0000Z-180513T1000Z/
/O.NEW.KEKA.SE.W.0010.180513T0400Z-180513T1000Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
842 PM PDT Sat May 12 2018

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 3 AM PDT SUNDAY...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect until 3 AM PDT Sunday. 

* WINDS...Sustained north winds 20 to 25 kts with local gusts to 
  35 kts.

* SEAS...Steep seas around 12 to 14 ft at 10 seconds. These will
  continue to diminish 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.

&&

$$

PZZ470-131000-
/O.EXP.KEKA.GL.W.0020.000000T0000Z-180513T0400Z/
/O.NEW.KEKA.SE.W.0010.180513T0400Z-180513T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
842 PM PDT Sat May 12 2018

...HAZARDOUS SEAS WARNING IN EFFECT UNTIL 3 AM PDT SUNDAY...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect until 3 AM PDT Sunday. 

* WINDS...Sustained north winds 10 to 20 kts.

* SEAS...Steep seas around 11 to 14 ft at 10 seconds. These will 
  continue to diminish 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.

&&

$$

PZZ450-455-131000-
/O.CON.KEKA.SC.Y.0049.000000T0000Z-180513T1000Z/
Pt St George to Cape Mendocino out 10 nm-
Cape Mendocino to Pt Arena out 10 nm-
842 PM PDT Sat May 12 2018

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

* WINDS...Sustained north winds 10 to 15 kt. Winds will become
  southerly tonight. 

* SEAS...Steep, 7 to 10 ft at 9 seconds, highest near Cape
  Mendocino. These will continue to diminish 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.

&&

$$
842 
WHUS76 KEKA 130955
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
255 AM PDT Sun May 13 2018

PZZ470-475-131600-
/O.EXP.KEKA.SE.W.0010.000000T0000Z-180513T1000Z/
/O.EXB.KEKA.SC.Y.0049.180513T1000Z-180513T1600Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
255 AM PDT Sun May 13 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PDT THIS MORNING...
...HAZARDOUS SEAS WARNING WILL EXPIRE AT 3 AM PDT EARLY THIS
MORNING...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 9 AM PDT this morning. 

* WINDS...Sustained north winds 10 to 15 kt will become southerly
  this morning.

* SEAS...7 to 10 ft at 9 seconds will diminish through the day.

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.

&&

$$

PZZ455-131100-
/O.EXP.KEKA.SC.Y.0049.000000T0000Z-180513T1000Z/
Cape Mendocino to Pt Arena out 10 nm-
255 AM PDT Sun May 13 2018

...SMALL CRAFT ADVISORY WILL EXPIRE AT 3 AM PDT EARLY THIS
MORNING...

Winds and seas have dropped below small craft criteria. A few
locally higher waves a possible near Cape Mendocino.

$$

PZZ450-131600-
/O.EXT.KEKA.SC.Y.0049.000000T0000Z-180513T1600Z/
Pt St George to Cape Mendocino out 10 nm-
255 AM PDT Sun May 13 2018

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

* WINDS...Southerly winds 10 to 15 kt. 

* SEAS...Steep, 7 to 10 ft at 9 seconds, highest near Cape
  Mendocino. These will continue to diminish 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 2:46 AM PDTHazardous Seas WarningEKA18 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.