Alert archive / Washington / Small Craft Advisories in 2021

Small Craft Advisory 29, NWS Seattle, WA

January 31, 2021

NWS Seattle, WA issued this small craft advisory at Jan 31, 2021, 1:35 AM PST. It took effect at Jan 31, 2021, 6:25 AM PST. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued
Jan 31, 2021, 1:35 AM PST (09:35 UTC)
In effect from
Jan 31, 2021, 6:25 AM PST
Expired
Feb 1, 2021, 4:00 PM PST
In force
34 hr
Issued by
NWS Seattle, WA

The text

As transmitted.

425 
WHUS76 KSEW 310935
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
135 AM PST Sun Jan 31 2021

PZZ150-153-156-170-173-176-311745-
/O.UPG.KSEW.SC.Y.0028.000000T0000Z-210201T0100Z/
/O.NEW.KSEW.GL.W.0013.210131T0935Z-210131T1500Z/
/O.NEW.KSEW.SC.Y.0029.210131T1500Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
135 AM PST Sun Jan 31 2021

...GALE WARNING IN EFFECT UNTIL 7 AM PST THIS MORNING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 AM THIS MORNING TO 4 PM
PST MONDAY...

* WHAT...For the Gale Warning, southeast winds 25 to 35 kt until
  daybreak. For the Small Craft Advisory, south wind 15 to 25 kt.


* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...For the Gale Warning, until 7 AM PST this morning. For 
  the Small Craft Advisory, from 7 AM this morning to 4 PM PST 
  Monday.

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



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.

&&

$$

PZZ132-311745-
/O.UPG.KSEW.SC.Y.0028.000000T0000Z-210201T0100Z/
/O.NEW.KSEW.GL.W.0013.210131T0935Z-210131T1800Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
135 AM PST Sun Jan 31 2021

...GALE WARNING IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WHAT...Southeast winds 25 to 35 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST this morning.

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



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.

&&

$$

PZZ134-311745-
/O.EXB.KSEW.SC.Y.0028.210131T0935Z-210131T2200Z/
Admiralty Inlet-
135 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 PM PST THIS AFTERNOON...

* WHAT...Southeast wind 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...Until 2 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ130-311745-
/O.EXB.KSEW.SC.Y.0028.210131T0935Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
135 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM PST MONDAY...

* WHAT...West swell 10 feet. 

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-311745-
/O.EXT.KSEW.SC.Y.0028.210131T0935Z-210202T0000Z/
Grays Harbor Bar-
135 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Combined seas 11 to 13 ft. Bar conditions rough with
  breakers during the maximum ebb currents around 615 AM and 615
  PM today. The afternoon ebb Sunday will be strong.

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ133-311745-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T0100Z/
Northern Inland Waters Including The San Juan Islands-
135 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 20 to 30 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca and 
  Northern Inland Waters Including The San Juan Islands.

* WHEN...Until 5 PM PST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
7 follow-up statements
956 
WHUS76 KSEW 311425
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
625 AM PST Sun Jan 31 2021

PZZ150-153-156-170-173-176-312230-
/O.CAN.KSEW.GL.W.0013.000000T0000Z-210131T1500Z/
/O.EXT.KSEW.SC.Y.0029.210131T1425Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
625 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 4 PM PST MONDAY...
...GALE WARNING IS CANCELLED...

* WHAT...For the Small Craft Advisory, west swqell 13 to 15 ft at
  14 seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ132-312230-
/O.CAN.KSEW.GL.W.0013.000000T0000Z-210131T1800Z/
/O.EXA.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
625 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM PST MONDAY...
...GALE WARNING IS CANCELLED...

* WHAT...Southeast wind 20 to 30 kt becoming southwest 15 to 25
  kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 4 PM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ133-312230-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T0100Z/
Northern Inland Waters Including The San Juan Islands-
625 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 20 to 30 kt easing to 15 to 25 kt.

* WHERE...Northern Inland Waters Including The San Juan Islands.

* WHEN...Until 5 PM PST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-312230-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
625 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Combined seas 11 to 13 ft. Bar conditions rough with 
  breakers during the maximum ebb currents around 615 AM and 615 
  PM today. The afternoon ebb Sunday will be strong.

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ134-312200-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210131T2200Z/
Admiralty Inlet-
625 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* WHAT...Southeast wind 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...Until 2 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ130-312230-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
625 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY...

* WHAT...West swell 10 feet.

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
370 
WHUS76 KSEW 311657
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
857 AM PST Sun Jan 31 2021

PZZ150-153-156-170-173-176-010100-
/O.CON.KSEW.SC.Y.0029.000000T0000Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
857 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Seas 10 to 14 ft at 14 to 15 seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ133-010100-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T0100Z/
Northern Inland Waters Including The San Juan Islands-
857 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 5 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 20 to 30 kt becoming south 15 to 25 kt
  this afternoon.

* WHERE...Northern Inland Waters Including The San Juan Islands.

* WHEN...Until 5 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-010100-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
857 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Combined seas becoming 11 to 13 ft. Bar conditions
  becoming rough with breakers during the maximum ebb currents
  around 615 PM today and 7 AM Monday. The afternoon ebb today 
  will be strong.

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ134-312200-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210131T2200Z/
Admiralty Inlet-
857 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 PM PST THIS
AFTERNOON...

* WHAT...South wind 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...Until 2 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ130-010100-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
857 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY...

* WHAT...Seas 10 ft at 14 to 15 seconds.

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ132-010100-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
857 AM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Southeast winds 20 to 30 kt becoming southwest 15 to 25
  kt in the afternoon.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
820 
WHUS76 KSEW 312257
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
257 PM PST Sun Jan 31 2021

PZZ132-010700-
/O.CAN.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
/O.NEW.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
257 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 4 PM PST MONDAY...

* WHAT...South winds 20 to 30 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...From 10 AM to 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ133-010700-
/O.CAN.KSEW.SC.Y.0028.000000T0000Z-210201T0100Z/
/O.NEW.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
Northern Inland Waters Including The San Juan Islands-
257 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 4 PM PST MONDAY...
...SMALL CRAFT ADVISORY IS CANCELLED...

* WHAT...Southeast winds 15 to 25 kt.

* WHERE...Northern Inland Waters Including The San Juan Islands.

* WHEN...From 10 AM to 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ134-010700-
/O.NEW.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
Admiralty Inlet-
257 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY IN EFFECT FROM 10 AM TO 4 PM PST MONDAY...

* WHAT...Southeast winds 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...From 10 AM to 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ150-153-156-170-173-176-010700-
/O.CON.KSEW.SC.Y.0029.000000T0000Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
257 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...South winds 15 to 25 kt becoming east 15 to 25 kt Monday.
  Seas 10 to 13 ft at 14 seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-010700-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
257 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Combined seas 8 to 10 ft, becoming 11 to 13 ft tonight.
  Bar conditions becoming rough with breakers during the maximum
  ebb currents around 615 PM today and 7 AM Monday. The evening
  ebb today will be strong. 

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ130-010700-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
257 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY...

* WHAT...Seas around 10 ft at 14 seconds.

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
163 
WHUS76 KSEW 010358
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
758 PM PST Sun Jan 31 2021

PZZ150-153-156-170-173-176-011200-
/O.CON.KSEW.SC.Y.0029.000000T0000Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
758 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Southeast winds 15 to 25 kt and seas 10 to 12 ft at 14 
  seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-011200-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
758 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* WHAT...Combined seas 10 to 13 ft. Bar conditions becoming 
  rough with breakers during the maximum ebb currents around 7 
  AM and 7 PM Monday. 

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST Monday.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ130-011200-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
758 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY...

* WHAT...Seas around 10 ft at 14 seconds.

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ132-133-011200-
/O.CON.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
Northern Inland Waters Including The San Juan Islands-
758 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 4 PM PST
MONDAY...

* WHAT...Southeast winds 20 to 30 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca and 
  Northern Inland Waters Including The San Juan Islands.

* WHEN...From 10 AM to 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ134-011200-
/O.CON.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
Admiralty Inlet-
758 PM PST Sun Jan 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM TO 4 PM PST
MONDAY...

* WHAT...Southeast winds 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...From 10 AM to 4 PM PST Monday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
168 
WHUS76 KSEW 011023
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
223 AM PST Mon Feb 1 2021

PZZ150-153-156-170-173-176-011830-
/O.CON.KSEW.SC.Y.0029.000000T0000Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
223 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 15 to 20 kt, becoming south 20 to 30 kt
  this morning. Seas 10 to 13 ft at 14 seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-011830-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
223 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Rough bar conditions through Monday afternoon with
  combined seas 10 to 12 ft. Bar conditions become moderate 
  Monday night, with combined seas easing to 7 to 9 ft. Maximum 
  ebb currents will be around 7 AM and 7 PM Monday.

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ130-011800-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
223 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* WHAT...Seas around 10 ft at 14 seconds.

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ132-133-011830-
/O.CON.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
Northern Inland Waters Including The San Juan Islands-
223 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 4 PM PST THIS AFTERNOON...

* WHAT...Southeast winds 20 to 30 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca and 
  Northern Inland Waters Including The San Juan Islands.

* WHEN...From 10 AM this morning to 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ134-011830-
/O.CON.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
Admiralty Inlet-
223 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING
TO 4 PM PST THIS AFTERNOON...

* WHAT...Southeast winds 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...From 10 AM this morning to 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
792 
WHUS76 KSEW 011647
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
847 AM PST Mon Feb 1 2021

PZZ150-153-156-170-173-176-020000-
/O.CON.KSEW.SC.Y.0029.000000T0000Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
847 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...South winds 20 to 30 kt and seas 10 to 12 ft at 14 
  seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ110-020000-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
847 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Combined seas 10 to 12 through the afternoon, easing to 7
  to 9 ft this evening. Bar conditions rough, becoming moderate
  tonight. Maximum ebb currents will be around 7 PM Monday and 
  745 AM Tuesday.

* WHERE...Grays Harbor Bar.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Conditions will be hazardous to small craft 
  especially when navigating in or near harbor entrances.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for rough bar means that wave conditions
are expected to be hazardous to small craft in or near harbor
entrances. 

&&

$$

PZZ130-011800-
/O.CON.KSEW.SC.Y.0028.000000T0000Z-210201T1800Z/
West Entrance U.S. Waters Strait Of Juan De Fuca-
847 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* WHAT...Seas around 10 ft at 14 seconds.

* WHERE...West Entrance U. S. Waters Strait Of Juan De Fuca.

* WHEN...Until 10 AM PST this morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ132-133-020000-
/O.CON.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
Northern Inland Waters Including The San Juan Islands-
847 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 20 to 30 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca and 
  Northern Inland Waters Including The San Juan Islands.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ134-020000-
/O.CON.KSEW.SC.Y.0030.210201T1800Z-210202T0000Z/
Admiralty Inlet-
847 AM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle
965 
WHUS76 KSEW 012236
MWWSEW

URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
236 PM PST Mon Feb 1 2021

PZZ110-012345-
/O.CAN.KSEW.SC.Y.0028.000000T0000Z-210202T0000Z/
Grays Harbor Bar-
236 PM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY IS CANCELLED...

Seas have subsided to below 10 feet. 

$$

PZZ150-153-156-170-173-176-020000-
/O.CON.KSEW.SC.Y.0029.000000T0000Z-210202T0000Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
236 PM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Southwest winds 15 to 25 kt and seas around 10 ft at 14 
  seconds.

* WHERE...Coastal Waters from Cape Flattery to Cape Shoalwater 
  out to 60 nm.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ132-133-020000-
/O.CON.KSEW.SC.Y.0030.000000T0000Z-210202T0000Z/
East Entrance U.S. Waters Strait Of Juan De Fuca-
Northern Inland Waters Including The San Juan Islands-
236 PM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Southeast winds 15 to 25 kt.

* WHERE...East Entrance U. S. Waters Strait Of Juan De Fuca and 
  Northern Inland Waters Including The San Juan Islands.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

PZZ134-020000-
/O.CON.KSEW.SC.Y.0030.000000T0000Z-210202T0000Z/
Admiralty Inlet-
236 PM PST Mon Feb 1 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...South winds 15 to 25 kt.

* WHERE...Admiralty Inlet.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
and/or seas 10 feet or higher are expected to produce hazardous
wave conditions to small craft. Inexperienced mariners,
especially those operating smaller vessels should avoid
navigating in these conditions.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/seattle

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 Seattle, WA wrote its last area forecast discussion before this small craft advisory went out at Jan 30, 8:02 PM PST, 5 hours 33 minutes earlier.

Area forecast discussion, Jan 30, 8:02 PM PST, 5 hours 33 minutes before
Area Forecast Discussion
National Weather Service Seattle WA
802 PM PST Sat Jan 30 2021

.UPDATE /THIS EVENING/...Forecast largely on track this evening -
only minor tweaks made to match current trends. Large area of
showers continues east of the Sound this evening with scattered
showers on the Olympic Peninsula and another batch of rain
offshore. Southwesterly flow aloft is driving higher snowfall
rates at Mt Baker than the rest of the Cascades. Showers will
continue into Sunday. Previous forecast discussion follows with
update to aviation and marine sections below. Carpenter

&&

.SYNOPSIS...Upper level trough remaining offshore through Monday
with bands of moisture moving through the area. Trough moving
inland through Western Washington Tuesday. Upper level ridge
building offshore for the latter half of the week. The ridge will
not be strong enough to prevent systems from coming over the top
of the ridge into the area.

&&

.SHORT TERM /TONIGHT THROUGH TUESDAY/...Satellite imagery shows
deep cool upper level trough anchored offshore. Little change in
the pattern through Monday night with the upper level trough
remaining offshore and bands of moisture spinning around the
trough moving through Western Washington. Snow levels, currently
near 3000 feet, will slowly rise in the next 24 hours and be
around 4000 feet Sunday afternoon. Easterly gradients will
increase overnight and continue into Sunday. This will drive some
colder air into Snoqualmie pass keeping the snow level near the
pass level there through Sunday afternoon. Precipitation amounts
over the Central Cascades only in the quarter of an inch every 12
hours so have dropped the winter weather advisory for the area.
Different story for the North Cascades with the southwesterly flow
aloft a prime direction for the snow to pile up on Mount Baker.
Have gone the other direction and issued a winter storm warning
for the North Cascades. Could see up to 2 feet of new snow at
Mount Baker between now and early Monday morning. South Cascades
in between the other two areas, getting more precipitation than
the Central Cascades and less than the Northern Cascades. Right
now precipitation amounts do not look to be enough to get 6 inches
of snow in 12 hours ( minimum for a winter weather advisory ) so
have dropped the advisory for the Southern Cascades as well.

In the lowlands bands of moisture moving through the area in the
next 48 hours. Will broadbrush the forecast and go rain at times.
With the southwesterly flow aloft and plenty of cloud cover there
will be little in the way of temperature spread between the highs
and lows with temperatures dropping into the mid 40s overnight
with highs around 50 the next two days.

Upper level trough finally moving inland Tuesday bringing about an
end to the moist southwesterly flow aloft. Snow levels lowering
back down below the passes with possible winter weather advisory
new snow amounts for all of the Cascades. For the lowlands one
more round of rain. Felton

.LONG TERM /WEDNESDAY THROUGH SATURDAY/...Extended models and
ensembles in pretty good agreement Wednesday and Thursday with an
upper level ridge building offshore but the ridge does not have
enough amplitude to rule out systems moving over the top of the
ridge from getting into Western Washington. This will keep at
least chance pops in the forecast. Wet solutions in the GFS
ensembles decrease Friday and Saturday while the ECMWF still has
over half of the solutions wet on Friday and around 40 percent of
the solutions with light precipitation Saturday. With the lack of
consistency between the models and the models trending toward a
weaker ridge will have to keep at least a slight chance of rain in
the forecast Friday and Saturday. Highs in the mid to upper 40s
with lows in the mid 30s to lower 40s through the period. Felton

&&

.AVIATION...Southwesterly flow will persist aloft through the
weekend. The air mass will remain moist and upper level troughing
will remain the dominant influence across the Pacific Northwest.
Expect showers to continue through the evening hours, before yet
another frontal system moves over the area tonight into Sunday.
This next system will bring another round of more widespread rain
to the area overnight and Sunday. Cigs currently a mixed bag
across area terminals with mainly VFR and MVFR, though a few spots
of IFR in heavier showers. Expect an overall downward trend to
MVFR and IFR cigs across the region as the next system approaches,
with MVFR to IFR conditions likely across the majority of the TAF
sites by Sunday morning. Mountains will remain obscured in precip
and clouds.

KSEA...Mainly VFR this evening though brief periods of MVFR cigs
in pockets of heavier showers. Showers will continue into Sunday
with MVFR cigs overnight into Sunday. Current conditions are VFR
at the terminal this afternoon, however could see brief periods of
MVFR cigs as showers pass nearby. Surface winds SE 5 to 12 kts.

14/Carpenter

&&

.MARINE...The next system will move through the region tonight
into Sunday, bringing another round of headlines to the area
waters. Overall, expect small craft southerly winds (20-30 kts)
to continue for the Coastal Waters, the Northern Inland Waters,
and the Eastern Strait as this second front approaches the region
tonight into Sunday. Winds will then start to ease late Sunday
morning into Sunday afternoon. An area of low pressure just
offshore will persist through Monday and then the weather pattern
looks to change around the middle of next week with periods of
stronger westerly flow at times.

Seas across the coastal waters remain near 10 feet and are
expected to remain elevated through the remainder of the weekend.

14/Carpenter

&&

.HYDROLOGY...Bands of moisture moving through Western Washington
through Tuesday with precipitation amounts not high enough for any
flooding on most of the area rivers. The exception is the
Skokomish where 1.5 to 2.5 inches of rain along the south slopes
of the Olympics in the next 48 hours could push the river to near
flood stage Monday. Tuesday through next Saturday no river flooding
expected. Felton

&&

.SEW WATCHES/WARNINGS/ADVISORIES...
WA...Winter Storm Warning until 4 AM PST Monday for Cascades of
     Whatcom and Skagit Counties.

PZ...Small Craft Advisory until 5 PM PST Sunday for Coastal Waters
     From Cape Flattery To James Island 10 To 60 Nm-Coastal
     Waters From Cape Flattery To James Island Out 10 Nm-Coastal
     Waters From James Island To Point Grenville 10 To 60 Nm-
     Coastal Waters From James Island To Point Grenville Out 10
     Nm-Coastal Waters From Point Grenville To Cape Shoalwater
     10 To 60 Nm-Coastal Waters From Point Grenville To Cape
     Shoalwater Out 10 Nm-East Entrance U.S. Waters Strait Of
     Juan De Fuca-Northern Inland Waters Including The San Juan
     Islands.

     Small Craft Advisory from 4 AM to 5 PM PST Sunday for Grays
     Harbor Bar.

&&

www.weather.gov/seattle

The office that day

Everything else NWS Seattle, WA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jan 31, 1:35 AM PSTGale WarningSEW5 hr
Jan 31, 2:57 PM PSTSmall Craft AdvisorySEW25 hr
Jan 31, 3:54 PM PSTWinter Weather AdvisorySEW18 hr

Nearby

Small Craft Advisories in Washington, 2021Every small craft advisory in 2021

Sources

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