Alert archive / California / Small Craft Advisories in 2018

Small Craft Advisory 67, NWS Eureka, CA

July 20, 2018

NWS Eureka, CA issued this small craft advisory at Jul 20, 2018, 2:16 PM PDT. It was in force for 56 hr.

The area

The counties it named.

The facts

Issued: Jul 20, 2018, 2:16 PM PDT (21:16 UTC)
Expired: Jul 22, 2018, 10:00 PM PDT
In force: 56 hr
Issued by: NWS Eureka, CA

The text

As transmitted.

966 
WHUS76 KEKA 202116
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
216 PM PDT Fri Jul 20 2018

PZZ475-210530-
/O.CAN.KEKA.GL.W.0027.000000T0000Z-180720T2200Z/
/O.NEW.KEKA.SC.Y.0067.180720T2116Z-180721T1600Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
216 PM PDT Fri Jul 20 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PDT SATURDAY...
...GALE WARNING IS CANCELLED...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 9 AM PDT Saturday. The Gale
Warning has been cancelled. 

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt through
  this tonight.

* WAVES...N 12 to 14 ft at around 11 seconds. Large, steep waves
  will subside into the weekend. 

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.

&&

$$

PZZ450-210530-
/O.UPG.KEKA.SC.Y.0066.000000T0000Z-180721T1100Z/
/O.NEW.KEKA.SE.W.0015.180720T2116Z-180721T1000Z/
Pt St George to Cape Mendocino out 10 nm-
216 PM PDT Fri Jul 20 2018

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

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect until 3 AM PDT Saturday. The
Small Craft Advisory is no longer in effect. 

* WINDS...N 15 to 25 kt with gusts near 30 kt near Point Saint
  George and N 5 to 15 kt elsewhere.

* WAVES...NW 9 to 12 ft at around 9 seconds.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

PZZ470-210530-
/O.CON.KEKA.GL.W.0027.000000T0000Z-180721T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
216 PM PDT Fri Jul 20 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM PDT SATURDAY...

* WINDS...N 25 to 35 kt through tonight.

* WAVES...N 12 to 16 ft at around 11 seconds. Large, steep waves
  will gradually subside into the weekend. 

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.

$$

11 follow-up statements

450 
WHUS76 KEKA 210354
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
854 PM PDT Fri Jul 20 2018

PZZ470-211200-
/O.EXT.KEKA.GL.W.0027.000000T0000Z-180721T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
854 PM PDT Fri Jul 20 2018

...GALE WARNING NOW IN EFFECT UNTIL 3 PM PDT SATURDAY...

* WINDS...N 25 to 35 kt with gusts to 40 kt.

* WAVES...N 12 to 16 ft at around 10 seconds. Large, steep waves
  will gradually subside late this weekend. 

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.

$$

PZZ450-211000-
/O.CON.KEKA.SE.W.0015.000000T0000Z-180721T1000Z/
Pt St George to Cape Mendocino out 10 nm-
854 PM PDT Fri Jul 20 2018

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

* WINDS...N 15 to 25 kt with gusts near 30 kt near Point Saint 
  George and N 5 to 15 kt elsewhere. 

* WAVES...NW 9 to 12 ft at around 8 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.

&&

$$

PZZ475-211200-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-180722T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
854 PM PDT Fri Jul 20 2018

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

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt through 
  tonight. 

* WAVES...N 12 to 15 ft at around 10 seconds. Large, steep waves
  will subside late this weekend. 

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.

&&

$$

918 
WHUS76 KEKA 210959
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
259 AM PDT Sat Jul 21 2018

PZZ450-211300-
/O.EXT.KEKA.SE.W.0015.000000T0000Z-180721T1300Z/
Pt St George to Cape Mendocino out 10 nm-
259 AM PDT Sat Jul 21 2018

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 6 AM EARLY THIS 
MORNING...

* WINDS...NW to N 5 to 15 kt. Gusts to 25 kt near Point Saint 
  George today.

* WAVES...NW 8 to 10 ft at around 9 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.

$$

PZZ470-211800-
/O.CON.KEKA.GL.W.0027.000000T0000Z-180721T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
259 AM PDT Sat Jul 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM THIS AFTERNOON...

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

* WAVES...N 12 to 15 ft at around 10 seconds. Large, steep waves
  will gradually subside Sunday. 

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.

$$

PZZ475-211800-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
259 AM PDT Sat Jul 21 2018

...SMALL CRAFT ADVISORY IN EFFECT THROUGH SUNDAY AFTERNOON...

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt today. 

* WAVES...N 10 to 13 ft at around 10 seconds. Large, steep waves
  will subside 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.

$$

805 
WHUS76 KEKA 211249
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
549 AM PDT Sat Jul 21 2018

PZZ450-211600-
/O.EXT.KEKA.SE.W.0015.000000T0000Z-180721T1600Z/
Pt St George to Cape Mendocino out 10 nm-
549 AM PDT Sat Jul 21 2018

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 9 AM THIS 
MORNING...

* WINDS...NW to N 5 to 15 kt. Gusts to 25 kt near Point Saint 
  George today. 

* WAVES...NW 8 to 10 ft at around 9 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.

$$

PZZ470-212100-
/O.CON.KEKA.GL.W.0027.000000T0000Z-180721T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
549 AM PDT Sat Jul 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM THIS AFTERNOON...

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

* WAVES...N 12 to 15 ft at around 10 seconds. Large, steep waves 
  will gradually subside Sunday. 

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.

$$

PZZ475-212100-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
549 AM PDT Sat Jul 21 2018

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

* WINDS...N 15 to 25 kt with occasional gusts to 35 kt today.

* WAVES...N 10 to 13 ft at around 10 seconds. Large, steep waves 
  will subside 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.

$$

256 
WHUS76 KEKA 211546
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
846 AM PDT Sat Jul 21 2018

PZZ450-220000-
/O.EXP.KEKA.SE.W.0015.000000T0000Z-180721T1600Z/
/O.EXB.KEKA.SC.Y.0067.180721T1600Z-180722T1000Z/
Pt St George to Cape Mendocino out 10 nm-
846 AM PDT Sat Jul 21 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...N 15 to 25 kt with occasional gusts to 30 kt today near
  Pt St George.

* WAVES...N 7 to 10 ft at around 8 seconds. Large, steep waves 
  will subside 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.

&&

$$

PZZ470-212200-
/O.CON.KEKA.GL.W.0027.000000T0000Z-180721T2200Z/
Pt St George to Cape Mendocino 10 to 60 nm-
846 AM PDT Sat Jul 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PDT THIS AFTERNOON...

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

* WAVES...N 9 to 13 ft at around 10 seconds. Large, steep waves 
  will gradually subside Sunday. 

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.

$$

PZZ475-220000-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
846 AM PDT Sat Jul 21 2018

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

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

* WAVES...N 7 to 11 ft at around 9 seconds. Large, steep waves 
  will subside 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.

$$

958 
WHUS76 KEKA 212128
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
228 PM PDT Sat Jul 21 2018

PZZ470-220400-
/O.EXT.KEKA.GL.W.0027.000000T0000Z-180722T0400Z/
Pt St George to Cape Mendocino 10 to 60 nm-
228 PM PDT Sat Jul 21 2018

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

* WINDS...N 15 to 25 kt with gusts to 35 kt tonight.

* WAVES...N 9 to 13 ft at around 10 seconds. Large, steep waves 
  will gradually subside Sunday. 

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.

$$

PZZ450-220530-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T1000Z/
Pt St George to Cape Mendocino out 10 nm-
228 PM PDT Sat Jul 21 2018

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

* WINDS...N 15 to 25 kt with occasional gusts to 30 kt today 
  near Pt St George. 

* WAVES...N 7 to 10 ft at around 8 seconds. Large, steep waves 
  will subside 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.

&&

$$

PZZ475-220530-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T2200Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
228 PM PDT Sat Jul 21 2018

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

* WINDS...N 10 to 20 kt with occasional gusts to 25 kt tonight.

* WAVES...N 7 to 11 ft at around 9 seconds. Large, steep waves 
  will subside 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.

$$

699 
WHUS76 KEKA 220317
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
817 PM PDT Sat Jul 21 2018

PZZ470-221000-
/O.EXT.KEKA.GL.W.0027.000000T0000Z-180722T1000Z/
Pt St George to Cape Mendocino 10 to 60 nm-
817 PM PDT Sat Jul 21 2018

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

* Northerly WINDS gusting to around 35 kt tonight.

* Steep northerly WAVES around 11 to 13 ft 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.

$$

PZZ475-221130-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-180722T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
817 PM PDT Sat Jul 21 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 11 AM PDT SUNDAY...

* WAVES...N 9 to 11 ft around 9 seconds tonight through Sunday 
  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.

$$

PZZ450-221000-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T1000Z/
Pt St George to Cape Mendocino out 10 nm-
817 PM PDT Sat Jul 21 2018

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

* WAVES...N 7 to 9 ft around 8 seconds tonight. 

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.

&&

$$

241 
WHUS76 KEKA 221004
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
304 AM PDT Sun Jul 22 2018

PZZ470-221800-
/O.EXP.KEKA.GL.W.0027.000000T0000Z-180722T1000Z/
/O.EXA.KEKA.SC.Y.0067.000000T0000Z-180722T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
304 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 11 AM THIS MORNING...
...GALE WARNING HAS EXPIRED...

* WINDS...N 15 to 25 kt...diminishing to 5 to 15 kt by afternoon.

* WAVES...N 9 to 11 ft at around 8 seconds tonight through Sunday
  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.

$$

PZZ450-221300-
/O.EXP.KEKA.SC.Y.0067.000000T0000Z-180722T1000Z/
/O.NEW.KEKA.SC.Y.0068.180722T1004Z-180722T1300Z/
Pt St George to Cape Mendocino out 10 nm-
304 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM EARLY THIS 
MORNING...

* WAVES...NW 7 to 9 ft at around 8 seconds early 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.

$$

PZZ475-221800-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
304 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM THIS 
MORNING...

* WAVES...N 7 to 9 ft at around 8 seconds 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.

$$

087 
WHUS76 KEKA 221253
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
553 AM PDT Sun Jul 22 2018

PZZ450-221600-
/O.EXT.KEKA.SC.Y.0068.000000T0000Z-180722T1600Z/
Pt St George to Cape Mendocino out 10 nm-
553 AM PDT Sun Jul 22 2018

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

* WAVES...NW 7 to 9 ft at around 8 seconds early 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.

$$

PZZ475-221800-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T1800Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
553 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM THIS 
MORNING...

* WAVES...N 7 to 9 ft at around 8 seconds 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.

$$

PZZ470-221800-
/O.CON.KEKA.SC.Y.0067.000000T0000Z-180722T1800Z/
Pt St George to Cape Mendocino 10 to 60 nm-
553 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 11 AM THIS 
MORNING...

* WINDS...N 15 to 25 kt...diminishing to 5 to 15 kt by afternoon.

* WAVES...N 9 to 11 ft at around 8 seconds tonight through 
  Sunday 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.

$$

799 
WHUS76 KEKA 221604
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
904 AM PDT Sun Jul 22 2018

PZZ450-221900-
/O.EXP.KEKA.SC.Y.0068.000000T0000Z-180722T1600Z/
/O.EXB.KEKA.SC.Y.0067.000000T0000Z-180722T1900Z/
Pt St George to Cape Mendocino out 10 nm-
904 AM PDT Sun Jul 22 2018

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

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until noon PDT today. 

* WAVES...NW 6 to 7 ft at around 7 seconds through this morning.

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.

&&

$$

PZZ475-222300-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-180722T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
904 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PDT THIS
AFTERNOON...

* WAVES...N 7 to 9 ft at around 8 seconds today and gradually
  decreasing.

* WINDS...N 10 to 15 kt for the northern portion of the waters and
  S 5 to 10 kt for the southern portion. 

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.

$$

PZZ470-222300-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-180722T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
904 AM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PDT THIS
AFTERNOON...

* WINDS...N 15 to 25 kt...diminishing to 5 to 15 kt by afternoon.

* WAVES...N 7 to 9 ft at around 8 seconds.

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.

$$

632 
WHUS76 KEKA 222137
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
237 PM PDT Sun Jul 22 2018

PZZ475-230500-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-180723T0500Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
237 PM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WAVES...N 7 to 9 ft at around 8 seconds today and gradually 
  decreasing. 

* WINDS...N 10 to 15 kt for the northern portion of the waters and
  S 5 to 10 kt for the southern portion. Winds then become
  northerly on Monday. 

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.

$$

PZZ470-230500-
/O.EXT.KEKA.SC.Y.0067.000000T0000Z-180723T0500Z/
Pt St George to Cape Mendocino 10 to 60 nm-
237 PM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 10 PM PDT THIS
EVENING...

* WINDS...N 5 to 15 kt.

* WAVES...N 6 to 8 ft at around 8 seconds.

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.

$$

173 
WHUS76 KEKA 230453
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
953 PM PDT Sun Jul 22 2018

PZZ475-230600-
/O.EXP.KEKA.SC.Y.0067.000000T0000Z-180723T0500Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
953 PM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM PDT THIS EVENING...

Winds and seas have dropped below criteria this evening.

$$

PZZ470-230600-
/O.EXP.KEKA.SC.Y.0067.000000T0000Z-180723T0500Z/
Pt St George to Cape Mendocino 10 to 60 nm-
953 PM PDT Sun Jul 22 2018

...SMALL CRAFT ADVISORY WILL EXPIRE AT 10 PM PDT THIS EVENING...

Winds and seas have dropped below criteria this evening.

$$

What forecasters said that day

The local office's own words before this small craft advisory 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 small craft advisory went out at Jul 20, 4:43 AM PDT, 9 hours 33 minutes earlier.

Area forecast discussion, Jul 20, 4:43 AM PDT, 9 hours 33 minutes before

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
443 AM PDT Fri Jul 20 2018

.SYNOPSIS...Warm temperatures will continue through next week. In
addition, isolated thunderstorms will be possible this afternoon
through Sunday over Trinity and Mendocino Counties.

&&

.DISCUSSION...The combination of an upper-level anticyclone over
the southern High Plains, and a weak cyclone positioned offshore
from Baja CA, are aiding in transporting subtropical moisture
northward across CA. However, monsoonal moisture flux into
northwestern CA will temporarily be inhibited by an upper trough
positioned over the PACNW. A midlevel deformation zone separating
dry air with the trough to the north, and moist air to the south,
will gradually be shunted northward this afternoon and night.
This will allow PW values from 1.0-1.5 inches to enter Mendocino
County late Friday night through Saturday...with moisture
continuing to spread north across the region during the remainder
of the weekend.

The increase in moisture combined with steep mid/upper-level
lapse rates, and modest isentropic upglide, may be sufficient for
the development of an isolated elevated thunderstorm late tonight
over Mendocino County. However, the more probable scenario
(albeit still fairly low) for thunderstorm development will occur
Saturday and Sunday afternoon as strong boundary layer
destabilization occurs over the mountains of northeastern
Mendocino County and Trinity County.

Otherwise, warm midlevel temperatures (850 mb temperatures at or
above 23 C) and strong surface heating will favor highs in the
upper 90s to mid 100s across the valleys of Trinity, interior Del
Norte, and northeastern Mendocino Counties this afternoon. The
risk of heat related illness will subsequently become elevated,
which has prompted the issuance of another heat advisory.
Temperatures across the interior are forecast to cool slightly
going into the weekend, but will likely warm back into the upper
90s to low 100s during much of next week.

&&

.AVIATION...Little in the way of low cloudiness has formed across
the area this morning. However, the inland thermal trough has
shifted W overnight, particularly S of Cape Mendocino. As a
result, a southerly flow reversal has begun off the Mendocino
County coast, and coastal low clouds have begun to develop near
and S of Fort Bragg. This cloudiness is expected to advect
northward through the day as S flow becomes more pronounced.
However, high resolution model data keeps low-level flow out of
the N near and north of the Cape. As a result, although low clouds
will continue thickening S of the Cape, they are not expected to
make their way N of the Cape through the afternoon. Low clouds may
advect N across the Russian River Valley early this morning and
approach KUKI. However, ceilings are not expected at the airport.
A few thunderstorms are possible over the Yolla Bollys this
afternoon, but they are expected to remain well NE-E of KUKI.
Winds across most of the land areas will be generally light, but N
winds will increase late this morning and this afternoon at KCEC
with gusts to 25 knots. /SEC

&&

.MARINE...N winds are peaking over the N outer waters early this
morning. As mentioned, the surface thermal trough has begun
pivoting across the S waters. As a result, winds will be
decreasing across the area today and tonight, although winds will
remain fairly strong in the N outer waters. Winds will become S-Sw
over the S inner waters as the surface flow reverses with a
pronounced eddy forming S of Cape Mendocino. However, winds
between Cape Mendocino and Shelter Cover will remain mostly out of
the N and gusty into the afternoon. Have cancelled the Hazardous
Seas Warning for the N inner waters, although conditions near Cape
Mendocino will likely remain near criteria through the afternoon.
Winds will become light across all of our waters by late Sunday
and into early next week, with northerlies increasing again by the
middle of next week. /SEC

&&

.FIRE WEATHER...Hot and dry conditions will continue to affect
much of the region today, and while some modest heat relief is
expected over the weekend, temperatures are only forecast to fall
3 to 8 degrees area-wide. Thereafter, temperatures will likely
become hot once again Monday through the remainder of next week.

Otherwise, northeasterly winds gusting to 30 mph are occurring
across the higher ridges of Del Norte County. Winds will likely
slacken during the hottest/driest part of Friday, and then re-
strengthen Friday night as RH values experience moderate
recoveries. The expected temporal offset between the nocturnal
peak in wind speeds, and low afternoon RH, continues to preclude
the issuance of a red flag warning.

Elsewhere, monsoon moisture will spread north across Mendocino
County late tonight, and will aid in a very slight chance for
elevated thunderstorm development. Thereafter, moisture will
continue to spread north across NWRN CA during the weekend.
Isolated thunderstorms across the interior mountains of Trinity
and northeastern Mendocino Counties will be possible Saturday and
Sunday afternoon/evening. /BRC/JMG

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...Heat Advisory from noon today to 9 PM PDT this evening for
     CAZ102-107-108-111.

NORTHWEST CALIFORNIA COASTAL WATERS...Small Craft Advisory until
     5 AM PDT early this morning for PZZ455.

     Small Craft Advisory until 4 AM PDT Saturday for PZZ450.

     Gale Warning until 4 AM PDT Saturday for PZZ470.

     Gale Warning until 3 PM PDT this afternoon for PZZ475.

&&

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For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.png

Hazardous weather outlook, Jul 20, 3:14 AM PDT, 11 hours 2 minutes before

Hazardous Weather Outlook
National Weather Service Eureka CA
314 AM PDT Fri Jul 20 2018

CAZ107-108-211015-
Northern Trinity-Southern Trinity-
314 AM PDT Fri Jul 20 2018

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS
EVENING...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Heat Advisory is currently in effect from noon today to 9 PM this
evening. In addition, isolated thunderstorm development will be
possible over southeastern Trinity County this evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Isolated thunderstorm development will be possible Saturday and
Sunday.

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

CAZ101-103>106-211015-
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
314 AM PDT Fri Jul 20 2018

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected at this time.

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

CAZ110-112-113-211015-
Northwestern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
314 AM PDT Fri Jul 20 2018

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

Isolated thunderstorm development will be possible this evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Isolated thunderstorm development will be possible Saturday morning.

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

CAZ102-211015-
Del Norte Interior-
314 AM PDT Fri Jul 20 2018

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS
EVENING...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Heat Advisory is currently in effect from noon today to 9 PM this
evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

No hazardous weather is expected.

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

CAZ111-211015-
Northeastern Mendocino Interior-
314 AM PDT Fri Jul 20 2018

...HEAT ADVISORY IN EFFECT FROM NOON TODAY TO 9 PM PDT THIS
EVENING...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Heat Advisory is currently in effect from noon today to 9 PM this
evening. In addition, an isolated thunderstorm will be possible this
afternoon and evening.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Isolated thunderstorms are possible Saturday afternoon through Sunday
afternoon.

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

CAZ109-211015-
Mendocino Coast-
314 AM PDT Fri Jul 20 2018

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Isolated thunderstorm development will be possible Saturday morning.

.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.

Issued	Product	Office	Lasted
Jul 19, 9:09 PM PDT	Small Craft Advisory	EKA	17 hr
Jul 19, 9:09 PM PDT	Hazardous Seas Warning	EKA	6 hr
Jul 20, 2:16 PM PDT	Hazardous Seas Warning	EKA	19 hr

Nearby

Small Craft Advisories in California, 2018 Every 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.