Alert archive / California / Hazardous Seas Warnings in 2018

Hazardous Seas Warning 3, NWS Eureka, CA

February 17, 2018

NWS Eureka, CA issued this hazardous seas warning at Feb 17, 2018, 3:00 PM PST. It took effect at Feb 18, 2018, 9:00 AM PST. It was in force for 30 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: Feb 17, 2018, 3:00 PM PST (23:00 UTC)
In effect from: Feb 18, 2018, 9:00 AM PST
Expired: Feb 19, 2018, 3:00 PM PST
In force: 30 hr
Issued by: NWS Eureka, CA

The text

As transmitted.

573 
WHUS76 KEKA 172300
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
300 PM PST Sat Feb 17 2018

PZZ475-180700-
/O.UPG.KEKA.SC.Y.0020.000000T0000Z-180220T0500Z/
/O.NEW.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
/O.NEW.KEKA.SC.Y.0021.180218T0500Z-180218T1700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
300 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY IN EFFECT FROM 9 PM THIS EVENING TO 9 AM
PST SUNDAY...
...GALE WARNING IN EFFECT FROM 9 AM SUNDAY TO 3 PM PST MONDAY...

The National Weather Service in Eureka has issued a Gale Warning,
which is in effect from 9 AM Sunday to 3 PM PST Monday. A Small
Craft Advisory has also been issued. This Small Craft Advisory is
in effect from 9 PM this evening to 9 AM PST Sunday.  

* WINDS...N 10 to 20 kt with gusts to 25 kt today. N winds will
  increase to 25 to 35 kt with occasional gusts up to 40 kt for 
  Sunday and Monday.

* WAVES...Combined seas of 8 to 11 ft. A large and long period
  swell will build into the waters on Sunday and Monday. In
  addition, steep short period waves will build into the area from
  the strong northerly winds. The result will be combined seas of
  20 to 25 feet.

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.

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.

&&

$$

PZZ470-180700-
/O.EXT.KEKA.SC.Y.0020.180218T0500Z-180218T1700Z/
/O.NEW.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
300 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 9 PM THIS EVENING TO
9 AM PST SUNDAY...
...GALE WARNING IN EFFECT FROM 9 AM SUNDAY TO 3 PM PST MONDAY...

The National Weather Service in Eureka has issued a Gale Warning,
which is in effect from 9 AM Sunday to 3 PM PST Monday. 

* WINDS...N 10 to 15 kt with gusts to 20 kt today. N winds will 
  increase to 25 to 35 kt with occasional gusts up to 40 kt for 
  Sunday and Monday.

* WAVES...Combined seas around 8 ft today. A large and long period
  swell will build into the waters on Sunday and Monday. In
  addition, steep short period waves will build into the area from
  the strong northerly winds. The result will be combined seas of
  20 to 25 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

PZZ450-180700-
/O.EXT.KEKA.SC.Y.0020.180218T1100Z-180218T2300Z/
/O.NEW.KEKA.SE.W.0003.180218T2300Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
300 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM TO 3 PM PST
SUNDAY...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 3 PM SUNDAY TO 3 PM PST
MONDAY...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect from 3 PM Sunday to 3 PM PST
Monday. 

* WINDS...N 5 to 15 kt increasing to 20 to 30 kt on Sunday.

* WAVES/SEAS...Combined seas around 5 to 8 ft today. A large and
  long period swell will build into the waters on Sunday and
  Monday. In addition, steep short period waves will build into
  the area from the strong northerly winds. The result will be
  combined seas of 15 to 20 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

PZZ455-180700-
/O.EXT.KEKA.SC.Y.0020.180218T1100Z-180219T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
300 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 3 AM SUNDAY TO 3 PM
PST MONDAY...

* WINDS...N 5 to 15 kt increasing to 20 to 25 kt on Sunday.

* WAVES/SEAS...Combined seas around 5 to 8 ft today. A large and 
  long period swell will build into the waters on Sunday and 
  Monday. In addition, steep short period waves will build into 
  the area from the strong northerly winds. 

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.

&&

$$

8 follow-up statements

900 
WHUS76 KEKA 180435
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
835 PM PST Sat Feb 17 2018

PZZ470-181245-
/O.CON.KEKA.SC.Y.0020.180218T0500Z-180218T1700Z/
/O.CON.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
835 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM SUNDAY TO 3 PM PST
MONDAY...

* WINDS...N 10 to 15 kt with gusts to 20 kt tonight. N winds will
  increase to 25 to 35 kt with occasional gusts up to 40 kt for 
  Sunday and Monday. 

* WAVES...A large and long period swell will build into the 
  waters on Sunday and Monday. In addition, steep short period 
  waves will build into the area from the strong northerly winds. 
  The result will be combined seas of 20 to 25 feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

PZZ475-181245-
/O.CON.KEKA.SC.Y.0021.180218T0500Z-180218T1700Z/
/O.CON.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
835 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST SUNDAY...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM SUNDAY TO 3 PM PST
MONDAY...

* WINDS...N 10 to 20 kt with gusts to 25 kt tonight. N winds will
  increase to 25 to 35 kt with occasional gusts up to 40 kt for 
  Sunday and Monday. 

* WAVES...A large and long period swell will build into the 
  waters on Sunday and Monday. In addition, steep short period 
  waves will build into the area from the strong northerly winds. 
  The result will be combined seas of 20 to 25 feet. 

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.

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.

&&

$$

PZZ450-181245-
/O.CON.KEKA.SC.Y.0020.180218T1100Z-180218T2300Z/
/O.CON.KEKA.SE.W.0003.180218T2300Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
835 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM TO 3 PM PST
SUNDAY...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 PM SUNDAY TO
3 PM PST MONDAY...

* WINDS...N 5 to 15 kt increasing to 20 to 30 kt on Sunday.

* WAVES/SEAS...A large and long period swell will build into the 
  waters on Sunday and Monday. In addition, steep short period 
  waves will build into the area from the strong northerly winds. 
  The result will be combined seas of 15 to 20 feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

PZZ455-181245-
/O.CON.KEKA.SC.Y.0020.180218T1100Z-180219T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
835 PM PST Sat Feb 17 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 3 AM SUNDAY TO
3 PM PST MONDAY...

* WINDS...N 5 to 15 kt increasing to 20 to 25 kt on Sunday.

* WAVES/SEAS...A large and long period swell will build into the
  waters on Sunday and Monday. In addition, steep short period
  waves will build into the area from the strong northerly winds.
  The result will be combined seas of 13 to 18 feet.

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.

&&

$$

976 
WHUS76 KEKA 181101
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
301 AM PST Sun Feb 18 2018

PZZ455-181915-
/O.EXT.KEKA.SC.Y.0020.000000T0000Z-180219T0200Z/
/O.EXB.KEKA.SE.W.0003.180219T0200Z-180219T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
301 AM PST Sun Feb 18 2018

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 6 PM PST THIS
EVENING...
...HAZARDOUS SEAS WARNING IN EFFECT FROM 6 PM THIS EVENING TO
3 PM PST MONDAY...

The National Weather Service in Eureka has issued a Hazardous
Seas Warning, which is in effect from 6 PM this evening to 3 PM
PST Monday. 

* WINDS...N 5 to 15 kt increasing to 20 to 25 kt today.

* WAVES/SEAS...A large and long period swell will build into the
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 14 to 19 feet. 

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.

&&

$$

PZZ470-181915-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-180218T1700Z/
/O.CON.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
301 AM PST Sun Feb 18 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 3 PM
PST MONDAY...

* WINDS...N winds will increase to 25 to 35 kt with occasional
  gusts up to 40 kt through Monday. 

* WAVES...A large and long period swell will build into the waters
  today and Monday. In addition, steep short period waves will 
  build into the area from the strong northerly winds. The result 
  will be combined seas of 20 to 25 feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

PZZ475-181915-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-180218T1700Z/
/O.CON.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
301 AM PST Sun Feb 18 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING TO 3 PM
PST MONDAY...

* WINDS...N winds will increase to 25 to 35 kt with occasional
  gusts up to 40 kt through Monday. 

* WAVES...A large and long period swell will build into the waters
  today and Monday. In addition, steep short period waves will 
  build into the area from the strong northerly winds. The result 
  will be combined seas of 20 to 25 feet. 

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.

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.

&&

$$

PZZ450-181915-
/O.CON.KEKA.SC.Y.0020.000000T0000Z-180218T2300Z/
/O.CON.KEKA.SE.W.0003.180218T2300Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
301 AM PST Sun Feb 18 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT FROM 3 PM THIS
AFTERNOON TO 3 PM PST MONDAY...

* WINDS...N 5 to 15 kt increasing to 20 to 30 kt today.

* WAVES/SEAS...A large and long period swell will build into the
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 15 to 20 feet. 

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.

&&

$$

654 
WHUS76 KEKA 181622
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
822 AM PST Sun Feb 18 2018

PZZ470-190030-
/O.CAN.KEKA.SC.Y.0020.000000T0000Z-180218T1700Z/
/O.CON.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
822 AM PST Sun Feb 18 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PST MONDAY...

The National Weather Service in Eureka has cancelled the Small
Craft Advisory. 

* WINDS...N winds will increase to 25 to 35 kt with occasional 
  gusts up to 40 kt through Monday. 

* WAVES...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 20 to 25 feet. 

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.

&&

$$

PZZ475-190030-
/O.CAN.KEKA.SC.Y.0021.000000T0000Z-180218T1700Z/
/O.CON.KEKA.GL.W.0008.180218T1700Z-180219T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
822 AM PST Sun Feb 18 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PST MONDAY...

The National Weather Service in Eureka has cancelled the Small
Craft Advisory. 

* WINDS...N winds will increase to 25 to 35 kt with occasional 
  gusts up to 40 kt through Monday. 

* WAVES...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 20 to 25 feet. 

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.

&&

$$

PZZ450-190030-
/O.CAN.KEKA.SC.Y.0020.000000T0000Z-180218T2300Z/
/O.NEW.KEKA.SI.Y.0001.180218T1622Z-180219T2300Z/
/O.EXT.KEKA.SE.W.0003.180218T1700Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
822 AM PST Sun Feb 18 2018

...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 3 PM PST
MONDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 3 PM PST MONDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory for winds, which is in effect until 3 PM PST Monday. The
Small Craft Advisory has been cancelled. 

* WINDS...N 5 to 15 kt increasing to 20 to 30 kt today.

* WAVES/SEAS...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 15 to 20 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

PZZ455-190030-
/O.CAN.KEKA.SC.Y.0020.000000T0000Z-180219T0200Z/
/O.NEW.KEKA.SI.Y.0001.180218T1622Z-180219T2300Z/
/O.EXT.KEKA.SE.W.0003.180218T1700Z-180219T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
822 AM PST Sun Feb 18 2018

...SMALL CRAFT ADVISORY FOR WINDS IN EFFECT UNTIL 3 PM PST
MONDAY...
...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 3 PM PST MONDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory for winds, which is in effect until 3 PM PST Monday. The
Small Craft Advisory has been cancelled. 

* WINDS...N 5 to 15 kt increasing to 20 to 25 kt today.

* WAVES/SEAS...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 14 to 19 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

204 
WHUS76 KEKA 182208
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
208 PM PST Sun Feb 18 2018

PZZ470-475-190615-
/O.CON.KEKA.GL.W.0008.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
208 PM PST Sun Feb 18 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PST MONDAY...

* WINDS...N winds will increase to 25 to 35 kt with occasional 
  gusts up to 40 kt through Monday. 

* WAVES...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 20 to 25 feet. 

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.

&&

$$

PZZ450-190615-
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
/O.CON.KEKA.SI.Y.0001.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
208 PM PST Sun Feb 18 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PST
MONDAY...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 3 PM
PST MONDAY...

* WINDS...N 20 to 30 kt. These will diminish on Monday.

* WAVES/SEAS...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 15 to 20 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

PZZ455-190615-
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
/O.CON.KEKA.SI.Y.0001.000000T0000Z-180219T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
208 PM PST Sun Feb 18 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PST
MONDAY...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 3 PM
PST MONDAY...

* WINDS...N 5 to 15 kt increasing to 20 to 25 kt this evening.
  Winds will diminish on Monday.

* WAVES/SEAS...A large and long period swell will build into the 
  waters today and Monday. In addition, steep short period waves 
  will build into the area from the strong northerly winds. The 
  result will be combined seas of 14 to 19 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

398 
WHUS76 KEKA 190555
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
955 PM PST Sun Feb 18 2018

PZZ470-475-191400-
/O.CON.KEKA.GL.W.0008.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
955 PM PST Sun Feb 18 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PST MONDAY...

* WINDS...N winds will increase to 25 to 35 kt with occasional 
  gusts up to 40 kt through Monday. 

* WAVES...A large and long period swell will build into the waters
  tonight and Monday. In addition, steep short period waves will 
  build into the area from the strong northerly winds. The result 
  will be combined seas of 20 to 25 feet. 

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.

&&

$$

PZZ450-191400-
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
/O.CON.KEKA.SI.Y.0001.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
955 PM PST Sun Feb 18 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PST
MONDAY...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 3 PM
PST MONDAY...

* WINDS...N 20 to 30 kt. These will diminish on Monday.

* WAVES/SEAS...A large and long period swell will build into the
  waters tonight and Monday. In addition, steep short period 
  waves will build into the area from the strong northerly winds. 
  The result will be combined seas of 15 to 20 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

PZZ455-191400-
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
/O.CON.KEKA.SI.Y.0001.000000T0000Z-180219T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
955 PM PST Sun Feb 18 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PST
MONDAY...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 3 PM
PST MONDAY...

* WINDS...N 20 to 25 kt. Winds will diminish on Monday. 

* WAVES/SEAS...A large and long period swell will build into the
  waters tonight and Monday. In addition, steep short period 
  waves will build into the area from the strong northerly winds. 
  The result will be combined seas of 14 to 19 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

280 
WHUS76 KEKA 191053
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
253 AM PST Mon Feb 19 2018

PZZ455-191900-
/O.EXT.KEKA.SE.W.0003.000000T0000Z-180220T0600Z/
/O.EXT.KEKA.SI.Y.0001.000000T0000Z-180220T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
253 AM PST Mon Feb 19 2018

...HAZARDOUS SEAS WARNING NOW IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY FOR WINDS NOW IN EFFECT UNTIL 10 PM PST
THIS EVENING...

* WINDS...N 20 to 25 kt gusting to near 35 kt. Winds will 
  gradually weaken today.

* WAVES/SEAS...A large and long period swell will move across our
  waters today. In addition, steep short period waves will remain
  present until due to strong northerly winds. The result will be
  combined seas of 14 to 20 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

PZZ470-475-191900-
/O.CON.KEKA.GL.W.0008.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
253 AM PST Mon Feb 19 2018

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

* WINDS...N 15 to 25 kt with occasional gusts up to 35 kt today.
  Winds will gradually be weakening from north to south. 

* WAVES...A large and long period swell will move across our
  waters today. In addition, steep short period waves will remain
  present until due to strong northerly winds. The result will be
  combined seas of 20 to 25 feet. 

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.

&&

$$

PZZ450-191900-
/O.EXT.KEKA.SI.Y.0001.000000T0000Z-180220T0600Z/
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino out 10 nm-
253 AM PST Mon Feb 19 2018

...SMALL CRAFT ADVISORY FOR WINDS NOW IN EFFECT UNTIL 10 PM PST
THIS EVENING...
...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...

* WINDS...N 20 to 25 kt gusting to near 30. Winds will gradually
  weaken today.

* WAVES/SEAS...A large and long period swell will move across our
  waters today. In addition, steep short period waves will remain
  present until due to strong northerly winds. The result will be
  combined seas of 14 to 20 feet.  

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

223 
WHUS76 KEKA 191622
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
822 AM PST Mon Feb 19 2018

PZZ470-475-192300-
/O.CON.KEKA.GL.W.0008.000000T0000Z-180219T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
Cape Mendocino to Pt Arena 10 to 60 nm-
822 AM PST Mon Feb 19 2018

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

* WINDS...N 15 to 25 kt with occasional gusts up to 35 kt today.
  Winds will gradually be weakening from north to south late in
  the day.

* WAVES...A large and long period swell will move across our 
  waters today. In addition, steep short period waves will 
  remain present until due to strong northerly winds. The result 
  will be combined seas of 20 to 25 feet. 

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.

&&

$$

PZZ450-200030-
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
/O.CON.KEKA.SI.Y.0001.000000T0000Z-180220T0600Z/
Pt St George to Cape Mendocino out 10 nm-
822 AM PST Mon Feb 19 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS
AFTERNOON...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 10 PM
PST THIS EVENING...

* WINDS...N 20 to 25 kt gusting to near 30. Winds will gradually 
  weaken later today. 

* WAVES/SEAS...A large and long period swell will move across 
  our waters today. In addition, steep short period waves will 
  remain present until due to strong northerly winds. The result 
  will be combined seas of 14 to 20 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

PZZ455-200030-
/O.CON.KEKA.SE.W.0003.000000T0000Z-180220T0600Z/
/O.CON.KEKA.SI.Y.0001.000000T0000Z-180220T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
822 AM PST Mon Feb 19 2018

...HAZARDOUS SEAS WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...
...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT UNTIL 10 PM
PST THIS EVENING...

* WINDS...N 20 to 25 kt gusting to near 35 kt. Winds will 
  gradually weaken later today. 

* WAVES/SEAS...A large and long period swell will move across 
  our waters today. In addition, steep short period waves will 
  remain present until due to strong northerly winds. The result 
  will be combined seas of 14 to 20 feet. 

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 for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners, especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$

658 
WHUS76 KEKA 192240
MWWEKA

Urgent - Marine Weather Message
National Weather Service Eureka CA
240 PM PST Mon Feb 19 2018

PZZ455-200645-
/O.CAN.KEKA.SE.W.0003.000000T0000Z-180220T0600Z/
/O.NEW.KEKA.SC.Y.0022.180219T2300Z-180220T1700Z/
/O.CAN.KEKA.SI.Y.0001.000000T0000Z-180220T0600Z/
Cape Mendocino to Pt Arena out 10 nm-
240 PM PST Mon Feb 19 2018

...HAZARDOUS SEAS WARNING WILL EXPIRE AT 3 PM PST THIS 
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PST TUESDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 9 AM PST Tuesday. The
Hazardous Seas Warning has been cancelled.

* WINDS...N 20 to 25 kt gusting to near 30 kt. Winds will
  gradually weaken overnight Monday. 

* WAVES/SEAS...While seas will remain large late this afternoon,
  both the northwest swell and steep wind waves will very
  gradually subside through the night. Expect combined seas of 14
  to 17 feet Monday afternoon and evening, decreasing to 7 to 9
  feet by late 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.

&&

$$

PZZ450-200645-
/O.CAN.KEKA.SI.Y.0001.000000T0000Z-180220T0600Z/
/O.CON.KEKA.SE.W.0003.000000T0000Z-180219T2300Z/
/O.NEW.KEKA.SC.Y.0022.180219T2300Z-180220T1100Z/
Pt St George to Cape Mendocino out 10 nm-
240 PM PST Mon Feb 19 2018

...HAZARDOUS SEAS WARNING WILL EXPIRE AT 3 PM PST THIS 
AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST TUESDAY...

The National Weather Service in Eureka has issued a Small Craft
Advisory, which is in effect until 3 AM PST Tuesday. The Small
Craft Advisory for winds has been cancelled. 

* WINDS...N 20 to 25 kt gusting to near 30 kt. Winds will
  gradually weaken overnight Monday. 

* WAVES/SEAS...While seas will remain large late this afternoon,
  both the northwest swell and steep wind waves will very
  gradually subside through the night. Expect combined seas of 14
  to 17 feet Monday afternoon and evening, decreasing to 7 to 9
  feet 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.

&&

$$

PZZ470-200645-
/O.CON.KEKA.GL.W.0008.000000T0000Z-180219T2300Z/
/O.NEW.KEKA.SC.Y.0022.180219T2300Z-180220T1100Z/
Pt St George to Cape Mendocino 10 to 60 nm-
240 PM PST Mon Feb 19 2018

...GALE WARNING WILL EXPIRE AT 3 PM PST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST TUESDAY...

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

* WINDS...N 20 to 25 kt gusting to near 30 kt. Winds will
  gradually weaken overnight Monday. 

* WAVES...While seas will remain large late this afternoon, both
  the northwest swell and steep wind waves will very gradually
  subside through the night. Expect combined seas of 14 to 17 feet
  Monday afternoon and evening, decreasing to 7 to 9 feet 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.

&&

$$

PZZ475-200645-
/O.CON.KEKA.GL.W.0008.000000T0000Z-180219T2300Z/
/O.NEW.KEKA.SC.Y.0022.180219T2300Z-180220T1700Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
240 PM PST Mon Feb 19 2018

...GALE WARNING WILL EXPIRE AT 3 PM PST THIS AFTERNOON...
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 9 AM PST TUESDAY...

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

* WINDS...N 20 to 25 kt gusting to near 30 kt. Winds will
  gradually weaken overnight Monday. 

* WAVES...While seas will remain large late this afternoon, both
  the northwest swell and steep wind waves will very gradually
  subside through the night. Expect combined seas of 14 to 17 feet
  Monday afternoon and evening, decreasing to 7 to 9 feet by late 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.

&&

$$

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 Feb 17, 5:07 AM PST, 9 hours 53 minutes earlier.

Area forecast discussion, Feb 17, 5:07 AM PST, 9 hours 53 minutes before

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
507 AM PST Sat Feb 17 2018

.SYNOPSIS...An incoming storm system will bring rain and snow
showers to northwest California beginning late this afternoon
through early Monday morning. Snow levels will rapidly fall from
3000 feet Sunday to around 1000 feet early Monday morning. A
prolonged period of cold temperatures will persist into early next
week.

.DISCUSSION...Beginning today, northwest California is in for a
switch in weather conditions as a cold upper trough digs over the
Pacific Northwest. Light rain will begin to impact the northern
reaches of the forecast area beginning this afternoon and gradually
shift southward through tonight. Showers will continue Sunday into
early Monday morning in the wake of the cold front. The arrival of
this colder airmass will cause snow levels to rapidly fall from 3000
feet Sunday morning to around 1000 feet Monday morning. Snow levels
will fall further on Monday however, precipitation will diminish.
Rainfall totals will not be particularly significant with 0.25-0.80
inches across Humboldt and Del Norte counties and around 1.25 inches
possible in the mountains of Del Norte. Accumulations will be
lighter across Mendocino and eastern Trinity counties ranging from a
few hundredths to nearly 0.20 inches. Snow accumulations will be
more impactful as snow levels drop on Sunday. Passes on Highways
199, 299, and 3 could see 2 to 5 inches which will make travel more
hazardous. Greater snow accumulations around 6 to 10 inches will be
possible above 4500 feet. A winter weather advisory has been issued
early Sunday through early Monday primarily for snow impacting
highway passes. In addition, small hail will be possible in
showers near the north coast although instability will remain
limited. Precipitation chances will diminish later Monday as dry,
polar air moves into the region. Widespread, cold temperatures
will impact much of the region early next week. Model guidance
suggests that that daytime temperatures will only reach the 40s
and low 50s with nighttime temperatures in the upper 20s possibly
extending to the coast. /KML

.AVIATION...More or less of the same on satellite imagery this
morning. High clouds are moving into the region with the associated
low pressure system arriving, but where there has been clear skies,
fog and low cloud have formed. Look for lowering clouds to arrive
later in the morning with MVFR conditions expected when the frontal
system passes through. Model soundings suggest IFR conditions could
be possible, but my confidence was not high enough to put them in
for the coastal TAF sites this morning.

.MARINE...Not much has changed in the marine forecast this morning,
with northerly winds briefly decreasing and wave heights subsiding
today. These conditions will be short lived though as a trough drops
into the Pacific Northwest. Strong northerly winds will return with
the trough which will create some steep wind waves. A couple of
swells will also be moving through the waters, with the largest one
of 15 to 20 feet arriving Sunday into Monday.

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...Winter Weather Advisory from 4 AM Sunday to 4 AM PST Monday for
CAZ102-105>108.

NORTHWEST CALIFORNIA COASTAL WATERS...Small Craft Advisory from 9 PM this evening to 9 PM PST Monday
for PZZ470.

Small Craft Advisory from 7 AM Sunday to 9 PM PST Monday for
PZZ450-455.

Small Craft Advisory until 9 PM PST Monday for PZZ475.

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

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

Hazardous weather outlook, Feb 17, 2:15 PM PST, 45 minutes before

Hazardous Weather Outlook
National Weather Service Eureka CA
215 PM PST Sat Feb 17 2018

CAZ102-105>108-182215-
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
215 PM PST Sat Feb 17 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SUNDAY TO 4 AM PST
MONDAY ABOVE 1,500 feet...

This hazardous weather outlook is for northwest California.

.DAY ONE...This afternoon and tonight.

A Winter Weather Advisory is currently in effect starting Sunday
morning.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A Winter Weather Advisory is currently in effect through early
Monday morning.

Cold temperatures are expected Tuesday and Wednesday morning with
lows in the teens and 20s in most areas.

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

CAZ101-103-182215-
Coastal Del Norte-Northern Humboldt Coast-
215 PM PST Sat Feb 17 2018

This hazardous weather outlook is for northwest California.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A cold storm system will bring rapidly falling snow levels from 3000
feet early Sunday morning to around 1000 feet early Monday morning.
Rain and snow showers may impact travel on Sunday through Monday
morning. Showers may contain small hail.

Cold temperatures are expected Tuesday and Wednesday morning with
lows in the 20s in most areas.

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

CAZ104-182215-
Southwestern Humboldt-
215 PM PST Sat Feb 17 2018

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SUNDAY TO 4 AM PST
MONDAY...

This hazardous weather outlook is for northwest California.

.DAY ONE...This afternoon and tonight.

A Winter Weather Advisory is currently in effect.

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A Winter Weather Advisory is currently in effect.

Cold temperatures are expected Tuesday and Wednesday morning with
lows in the teens and 20s in most areas.

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

CAZ109>113-182215-
Mendocino Coast-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-Southwestern Mendocino Interior-
Southeastern Mendocino Interior-
215 PM PST Sat Feb 17 2018

This hazardous weather outlook is for northwest California.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

A cold storm system will bring a chance for rain and high elevation
snow showers for Sunday. Snow levels will fall from 3000 feet Sunday
morning to around 1000 feet early Monday morning. Snow accumulations
of up to 2 inches are possible.

Cold temperatures are expected Tuesday and Wednesday morning with
lows in the teens and 20s in most areas.

.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	Counties	Lasted
Feb 17, 2:49 AM PST	Small Craft Advisory	EKA		30 hr
Feb 17, 3:40 AM PST	Winter Weather Advisory	EKA	Del Norte, Humboldt, Trinity	51 hr
Feb 17, 3:00 PM PST	Gale Warning	EKA		48 hr
Feb 17, 3:00 PM PST	Small Craft Advisory	EKA		17 hr

Nearby

Hazardous Seas Warnings in California, 2018 Every hazardous seas warning 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.