Gale Warning 15, NWS Eureka, CA

795 
WHUS76 KEKA 181104
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
304 AM PST Sun Feb 18 2024

PZZ455-181915-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240218T1700Z/
/O.CON.KEKA.GL.W.0015.240218T1700Z-240218T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
304 AM PST Sun Feb 18 2024

...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 THIS AFTERNOON...

* WHAT...For the Gale Warning, southeast winds 25 to 35 kt with 
  gusts up to 45 kt and seas 11 to 15 feet expected. For the 
  Small Craft Advisory, southeast winds 15 to 25 kt with gusts 
  up to 35 kt and seas 11 to 15 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...For the Gale Warning, from 9 AM this morning to 3 PM 
  PST this afternoon. For the Small Craft Advisory, until 9 AM 
  PST this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-181915-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240218T1700Z/
/O.CON.KEKA.GL.W.0015.240218T1700Z-240218T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
304 AM PST Sun Feb 18 2024

...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 THIS AFTERNOON...

* WHAT...For the Gale Warning, southeast winds 20 to 30 kt with 
  gusts up to 45 kt and seas 12 to 16 feet expected. For the 
  Small Craft Advisory, south winds 15 to 25 kt with gusts up to 
  35 kt and seas 13 to 15 feet.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...For the Gale Warning, from 9 AM this morning to 3 PM 
  PST this afternoon. For the Small Craft Advisory, until 9 AM 
  PST this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-181915-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240218T1500Z/
/O.CON.KEKA.GL.W.0015.240218T1500Z-240218T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
304 AM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST THIS
MORNING...
...GALE WARNING REMAINS IN EFFECT FROM 7 AM THIS MORNING TO 3 PM
PST THIS AFTERNOON...

* WHAT...For the Gale Warning, southeast winds 25 to 35 kt with a
  few gusts up to 50 kt and seas 13 to 17 feet expected. For the 
  Small Craft Advisory, southeast winds 10 to 20 kt with gusts up 
  to 25 kt and seas 12 to 15 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...For the Gale Warning, from 7 AM this morning to 3 PM 
  PST this afternoon. For the Small Craft Advisory, until 7 AM 
  PST this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-181915-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240219T1100Z/
Pt St George to Cape Mendocino out 10 nm-
304 AM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST MONDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt and 
  seas 9 to 14 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 3 AM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

094 
WHUS76 KEKA 181449
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
649 AM PST Sun Feb 18 2024

PZZ475-182300-
/O.EXP.KEKA.SC.Y.0021.000000T0000Z-240218T1500Z/
/O.CON.KEKA.GL.W.0015.240218T1500Z-240218T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
649 AM PST Sun Feb 18 2024

...GALE WARNING REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...
...SMALL CRAFT ADVISORY WILL EXPIRE AT 7 AM PST THIS MORNING...

* WHAT...Southeast winds 25 to 35 kt with gusts up to 50 kt and 
  seas 13 to 17 feet expected.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ455-182300-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240218T1700Z/
/O.CON.KEKA.GL.W.0015.240218T1700Z-240218T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
649 AM PST Sun Feb 18 2024

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

* WHAT...For the Gale Warning, southeast winds 25 to 35 kt with 
  gusts up to 45 kt and seas 11 to 15 feet expected. For the 
  Small Craft Advisory, southeast winds 20 to 25 kt with gusts 
  up to 35 kt and seas 11 to 15 feet.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...For the Gale Warning, until 3 PM PST this afternoon. 
  For the Small Craft Advisory, until 9 AM PST this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-182300-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240218T1700Z/
/O.CON.KEKA.GL.W.0015.240218T1700Z-240218T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
649 AM PST Sun Feb 18 2024

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

* WHAT...For the Gale Warning, southeast winds 20 to 30 kt with 
  gusts up to 45 kt and seas 12 to 16 feet expected. For the 
  Small Craft Advisory, south winds 20 to 25 kt with gusts up to 
  35 kt and seas 13 to 15 feet.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...For the Gale Warning, until 3 PM PST this afternoon. 
  For the Small Craft Advisory, until 9 AM PST this morning.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-182300-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240219T1100Z/
Pt St George to Cape Mendocino out 10 nm-
649 AM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST MONDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts up to 30 kt and 
  seas 7 to 12 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 3 AM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

161 
WHUS76 KEKA 181649
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
849 AM PST Sun Feb 18 2024

PZZ455-182300-
/O.EXP.KEKA.SC.Y.0021.000000T0000Z-240218T1700Z/
/O.CON.KEKA.GL.W.0015.240218T1700Z-240218T2300Z/
Cape Mendocino to Pt Arena out 10 nm-
849 AM PST Sun Feb 18 2024

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

* WHAT...Southeast winds 25 to 35 kt with gusts to 45 kt and seas
  11 to 15 feet expected.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-182300-
/O.EXP.KEKA.SC.Y.0021.000000T0000Z-240218T1700Z/
/O.CON.KEKA.GL.W.0015.240218T1700Z-240218T2300Z/
Pt St George to Cape Mendocino 10 to 60 nm-
849 AM PST Sun Feb 18 2024

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

* WHAT...Southeast winds 20 to 30 kt with gusts to 45 kt and seas
  12 to 16 feet expected.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-182300-
/O.CON.KEKA.GL.W.0015.000000T0000Z-240218T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
849 AM PST Sun Feb 18 2024

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

* WHAT...Southeast winds 25 to 35 kt with localized gusts to 50 
  kt and seas 15 to 17 feet.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...Until 3 PM PST this afternoon.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-190100-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240219T1100Z/
Pt St George to Cape Mendocino out 10 nm-
849 AM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST MONDAY...

* WHAT...Southeast winds 10 to 20 kt with gusts to 30 kt and seas
  7 to 12 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...Until 3 AM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

774 
WHUS76 KEKA 182253
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
253 PM PST Sun Feb 18 2024

PZZ455-190700-
/O.EXT.KEKA.GL.W.0015.000000T0000Z-240219T0000Z/
/O.NEW.KEKA.GL.W.0016.240219T1100Z-240220T0500Z/
Cape Mendocino to Pt Arena out 10 nm-
253 PM PST Sun Feb 18 2024

...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 3 AM TO 9 PM PST MONDAY...

* WHAT...For the first Gale Warning, southeast winds 25 to 30 kt
  with localized gusts to 50 kt and seas 13 to 15 feet. For the
  second Gale Warning, south winds 25 to 30 kt with gusts to 45 
  kt and seas 15 to 20 feet expected.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Gale Warning, from 3 AM to 9 PM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...There will be an 11 hour lull in gale force
  winds between storms from 4PM this afternoon to 3AM tomorrow 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-190700-
/O.EXT.KEKA.GL.W.0015.000000T0000Z-240219T0000Z/
/O.NEW.KEKA.GL.W.0016.240219T1100Z-240220T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
253 PM PST Sun Feb 18 2024

...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 3 AM MONDAY TO 9 AM PST TUESDAY...

* WHAT...For the first Gale Warning, southeast winds 20 to 30 kt
  with gusts to 40 kt and seas 14 to 16 feet. For the second Gale
  Warning, south winds 25 to 30 kt with gusts to 40 kt and seas 
  15 to 20 feet expected.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Gale Warning, from 3 AM Monday to 9 AM PST Tuesday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...There will be an 11 hour lull in gale force
  winds between storms from 4PM this afternoon to 3AM tomorrow 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-190700-
/O.EXT.KEKA.GL.W.0015.000000T0000Z-240219T0000Z/
/O.NEW.KEKA.GL.W.0016.240219T1100Z-240219T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
253 PM PST Sun Feb 18 2024

...GALE WARNING NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...
...GALE WARNING IN EFFECT FROM 3 AM TO 3 PM PST MONDAY...

* WHAT...For the first Gale Warning, south winds 25 to 30 kt with
  gusts to 45 kt and seas 15 to 17 feet. For the second Gale
  Warning, south winds 25 to 30 kt with gusts to 45 kt and seas 
  16 to 21 feet expected.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...For the Gale Warning, until 4 PM PST this afternoon. 
  For the Gale Warning, from 3 AM to 3 PM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

* ADDITIONAL DETAILS...There will be an 11 hour lull in gale force
  winds between storms from 4PM this afternoon to 3AM tomorrow 
  morning.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-190700-
/O.EXT.KEKA.SC.Y.0021.000000T0000Z-240219T1700Z/
/O.NEW.KEKA.GL.W.0016.240219T1700Z-240220T1100Z/
Pt St George to Cape Mendocino out 10 nm-
253 PM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 9 AM PST MONDAY...
...GALE WARNING IN EFFECT FROM 9 AM MONDAY TO 3 AM PST TUESDAY...

* WHAT...For the Gale Warning, south winds 20 to 30 kt with gusts
  to 45 kt and seas 11 to 16 feet expected. For the Small Craft
  Advisory, southeast winds 10 to 20 kt with gusts to 40 kt and 
  seas 8 to 12 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...For the Gale Warning, from 9 AM Monday to 3 AM PST 
  Tuesday. For the Small Craft Advisory, until 9 AM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

681 
WHUS76 KEKA 182353
MWWEKA

URGENT - MARINE WEATHER MESSAGE
National Weather Service Eureka CA
353 PM PST Sun Feb 18 2024

PZZ455-190800-
/O.EXP.KEKA.GL.W.0015.000000T0000Z-240219T0000Z/
/O.EXB.KEKA.SC.Y.0021.240219T0000Z-240219T1100Z/
/O.CON.KEKA.GL.W.0016.240219T1100Z-240220T0500Z/
Cape Mendocino to Pt Arena out 10 nm-
353 PM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST MONDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM TO 9 PM PST MONDAY...
...GALE WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

* WHAT...For the Gale Warning, south winds 25 to 30 kt with 
  gusts up to 45 kt and seas 15 to 20 feet expected. For the 
  Small Craft Advisory, southeast winds 15 to 25 kt with gusts 
  up to 30 kt and seas 11 to 14 feet expected.

* WHERE...Cape Mendocino to Pt Arena out 10 nm.

* WHEN...For the Gale Warning, from 3 AM to 9 PM PST Monday. For 
  the Small Craft Advisory, until 3 AM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ470-190800-
/O.EXP.KEKA.GL.W.0015.000000T0000Z-240219T0000Z/
/O.EXB.KEKA.SC.Y.0021.240219T0000Z-240219T1100Z/
/O.CON.KEKA.GL.W.0016.240219T1100Z-240220T1700Z/
Pt St George to Cape Mendocino 10 to 60 nm-
353 PM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 3 AM PST MONDAY...
...GALE WARNING REMAINS IN EFFECT FROM 3 AM MONDAY TO 9 AM PST
TUESDAY...
...GALE WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

* WHAT...For the Gale Warning, south winds 25 to 30 kt with 
  gusts up to 40 kt and seas 15 to 20 feet expected. For the 
  Small Craft Advisory, south winds 20 to 25 kt with gusts up to 
  30 kt and seas 11 to 15 feet expected.

* WHERE...Pt St George to Cape Mendocino 10 to 60 nm.

* WHEN...For the Gale Warning, from 3 AM Monday to 9 AM PST 
  Tuesday. For the Small Craft Advisory, until 3 AM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ475-190800-
/O.EXP.KEKA.GL.W.0015.000000T0000Z-240219T0000Z/
/O.EXB.KEKA.SC.Y.0021.240219T0000Z-240219T0900Z/
/O.EXT.KEKA.GL.W.0016.240219T0900Z-240219T2300Z/
Cape Mendocino to Pt Arena 10 to 60 nm-
353 PM PST Sun Feb 18 2024

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 1 AM PST MONDAY...
...GALE WARNING NOW IN EFFECT FROM 1 AM TO 3 PM PST MONDAY...
...GALE WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

* WHAT...For the Gale Warning, south winds 25 to 30 kt with 
  gusts up to 45 kt and seas 16 to 21 feet expected. For the 
  Small Craft Advisory, south winds 20 to 25 kt with gusts up to 
  30 kt and seas 12 to 14 feet expected.

* WHERE...Cape Mendocino to Pt Arena 10 to 60 nm.

* WHEN...For the Gale Warning, from 1 AM to 3 PM PST Monday. For 
  the Small Craft Advisory, until 1 AM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

PZZ450-190800-
/O.CON.KEKA.SC.Y.0021.000000T0000Z-240219T1700Z/
/O.CON.KEKA.GL.W.0016.240219T1700Z-240220T1100Z/
Pt St George to Cape Mendocino out 10 nm-
353 PM PST Sun Feb 18 2024

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

* WHAT...For the Gale Warning, south winds 20 to 30 kt with 
  gusts up to 45 kt and seas 11 to 16 feet expected. For the 
  Small Craft Advisory, southeast winds 10 to 20 kt with gusts 
  up to 40 kt and seas 8 to 12 feet.

* WHERE...Pt St George to Cape Mendocino out 10 nm.

* WHEN...For the Gale Warning, from 9 AM Monday to 3 AM PST 
  Tuesday. For the Small Craft Advisory, until 9 AM PST Monday.

* IMPACTS...Strong winds will cause hazardous seas which could 
  capsize or damage vessels and reduce visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Mariners should alter plans to avoid these hazardous conditions.
Remain in port, seek safe harbor, alter course, and/or secure the
vessel for severe conditions.

&&

$$

AREA FORECAST DISCUSSION
National Weather Service Eureka CA
339 PM PST Sat Feb 17 2024

.SYNOPSIS...Unsettled weather conditions are expected this
weekend and will continue through the first half of next week
with two impactful storm systems moving across Northern
California. Periods of moderate to localized heavy rainfall,
mountain snow (NE Trinity County), and strong southerly winds are
forecast.

&&

.DISCUSSION...A large area of cyclonic rotation over the Northeastern
Pacific, just south of Alaska, continues to impact the region. An
associated frontal boundary within a shortwave trough continues to
funnel a plume of subtropical moisture, ingested in the southwesterly
flow, toward the Pacific Northwest. Warm air advection continues to
aid in maintaining snow levels above 5,000 feet MSL. Precipitation
continues as widespread stratiform rain with mostly moderate periods
of rainfall with localized heavy bouts as the shortwave continues
through the region. Also, increasing instability will promote a
threat for isolated thunderstorms and brief heavy downpours late
this afternoon and evening. Convective allowing models (CAMs)
indicate localized strong returns over Humboldt and northern
Mendocino counties late this afternoon. Rainfall amounts are
forecast to range from 1 to 3 inches through early tomorrow with
localized totals of up to 4 inches forecasted for the King Range
in southwest Humboldt County.

In addition, a tight pressure gradient combined with a 40 to 60
kt jet streak at around 925-850 mb has been bringing gusty
southerly winds that will continue this afternoon to a lesser
degree. Gusts of around 45 to 60 mph have been observed over the
higher terrain areas of Humboldt, Mendocino, and Lake counties.
The highest gusts recorded at observation stations so far have
been: 63 mph at Kneeland, 65 mph at Mattole Road, 56 mph at Cahto
Peak in Mendocino County, and 53 mph at High Glade Lookout in
Lake County. Although the coastal barrier jet is decaying, it
will keep winds elevated into early this evening.

This warm system will continue to keep snow levels confined over
5,000 feet for the rest of today. Mountain snow is expected
mainly over Northeastern Trinity County today. As the frontal
system continues to progress eastward into early this evening,
upslope southerly flow over the terrain continues to aid in
adiabatic forcing of moist air this evening. Moderate, with brief
periods of heavy, snowfall is expected as a result. Scott Mountain
Pass on Highway 3 may see as much as 10 inches of snowfall by
every early tomorrow morning. A Winter Storm Warning continues to
be in effect through early tomorrow morning for Northeastern
Trinity, including Scott Mountain Summit on Highway 3.

A brief lull in precipitation is expected early tomorrow morning as
the shortwave moves east of the area. However, a low pressure system
will cutoff from the parent low and head east toward our coastline
later in the day tomorrow. The local pressure gradient will
quickly increase throughout tomorrow, with strengthening southerly
winds redeveloping in response. The cyclone will be weakening on
approach; however, models indicate that it will carry 925-850mb
winds of around 40 to 60 kts that are forecast to be very near the
coast. Meso and synoptic scale ascent, deep-layer saturation, and
IVT values associated with the 925-850mb speed max will favor
periods of moderate to locally heavy rainfall tomorrow night
through early this coming week. The locally heavy rainfall will be
focused over southwestern Humboldt, Mendocino, and Lake counties
due to maximum overlap of the previously mentioned rainfall
ingredients. Rainfall amounts from this system are forecast to
range from 1 to 4 inches from late tomorrow morning through
Tuesday afternoon. 5 to possibly 6 inches of rainfall are
forecast for the King Range in southwestern Humboldt through the
same time period. The heavy rainfall will lead to rapid rises on
rivers, streams, and creeks. See hydrology section below.

In the wake of the first system, snow levels are expected to drop to
between 3,000 to 4,000 feet by mid morning tomorrow. However, an
occluded frontal system, along with a subtropical plume of moisture,
will bring warm air advection which will promote a rise in snow
levels back up to above 4,500 feet by tomorrow afternoon. As a
result, more significant snow impacts are confined to over
Northeastern Trinity County tomorrow through Tuesday.

As the second low stalls off the coast and weakens, potentially
moderate rainfall will continue to fall over the far southern
parts of Mendocino and Lake counties through Tuesday, which will
likely exacerbate any ongoing flooding issues. The cutoff low
will then have potential to move north along the coast into mid
week. /ZVS /JLW

&&

.AVIATION...The main issues include temporary IFR visibility with
showers containing heavier rain. These are short-lived and
unpredictable so tempo groups were not included in the forecasts.
Ceilings have been difficult to predict and tend to be more VFR
rather than the predicted lower elevation end of MVFR as many models
had predicted which prompted amendments earlier. Still think chances
are that ceilings will eventually lower tonight somewhat, but models
have been challenged at forecasting ceiling heights, so confidence
is low in this realm.

&&

.MARINE...Lingering hazardous seas this evening for outer and
southern waters is expected to be converted to small craft advisory
later this evening, joining with the ongoing advisory in northern
outer waters. This will continue well into much of the weekend.
Isolated thunderstorms could still bring some isolated wind gusts
this evening. Seas will remain chaotic this holiday weekend with
another west southwesterly swell building in Sunday night into
Monday. A compact low will approach from the west southwest Sunday
into Monday, bringing gales and large steep waves. Risk for gales
with storm force gusts will increase again on Monday as compact low
pressure tracks NE across waters.

&&

.HYDROLOGY...Periods of moderate to heavy rainfall is forecast
to continue into this afternoon and through tonight as the first
of two storm systems moves through. Rain rates are expected to be
generally up to 0.2 in/hr, with brief and localized rain rates of
up to 0.5 in/hr. WPC issued a "Slight Risk" of excessive rainfall
for portions of NW California today, including southern Humboldt,
Mendocino, and Lake counties. The heavy rainfall will lead to
rapid rises on rivers, streams, and creeks this afternoon and
evening. Ponding of water is likely for low-lying or poorly
drained areas. There is a risk of minor flooding of urban areas and
small streams through late tonight. Mainstream rivers are
expected to rise quickly today, but will remain below flood stage.

A second storm will bring additional periods of moderate to
localized heavy rainfall tomorrow through the first half of next
week. Once again a rapid rise on rivers, streams, and creeks are
expected. This will bring another risk of minor flooding of urban
areas and small streams as a result. WPC continues to have
portions of our area in a "Slight Risk" for excessive rainfall
tomorrow through Tuesday. The Russian River at Hopland currently
has around a 40 percent chance of exceeding flood stage this
weekend through Monday. Scott's Creek will also rise quickly
tomorrow and exceed monitor stage (9 feet) by Monday. Clear Lake
in Lake County is expected to rise through the weekend and exceed
monitor stage (8 feet) by Tuesday, and may bring minor flooding
to some lake side residents. /ZVS

&&

.BEACH HAZARDS...A westerly swell will build in from 13 to 15
feet at 17 to 19 seconds today, peaking this evening. This long
period wave group will pose a risk to beachgoers and bring a
threat of shoaling. Forecast breaker heights are just under
criteria of 22 feet, so will highlight the threat in a weather
story graphic and social media posts. Another long period west
swell will build in around mid week and will pose a hazard to
beachgoers. DB

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Wind Advisory until 7 PM PST this evening for CAZ102-
     104>106-110.

     Flood Watch from Sunday morning through Tuesday morning for
     CAZ103-104-106-108>115.

     High Wind Watch from late Sunday night through late Monday
     night for CAZ103-104-106-108>115.

     Winter Storm Warning until 4 AM PST Sunday for CAZ107.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 4 PM PST Sunday for PZZ450.

     Hazardous Seas Warning until 9 PM PST this evening for
     PZZ455-470-475.

&&

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For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png