095 

WHUS76 KSEW 150430

MWWSEW



URGENT - MARINE WEATHER MESSAGE

National Weather Service Seattle WA

830 PM PST Thu Dec 14 2017



PZZ130>132-151230-

/O.EXB.KSEW.SC.Y.0302.171216T0000Z-171216T1100Z/

West Entrance U.S. Waters Strait Of Juan De Fuca-

Central U.S. Waters Strait Of Juan De Fuca-

East Entrance U.S. Waters Strait Of Juan De Fuca-

830 PM PST Thu Dec 14 2017



...SMALL CRAFT ADVISORY IN EFFECT FROM 4 PM FRIDAY TO 3 AM PST

SATURDAY...



The National Weather Service in Seattle has issued a Small Craft

Advisory...which is in effect from 4 PM Friday to 3 AM PST

Saturday. 



* WIND...West 15 to 25 knots developing late in the afternoon

  through evening.



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.



&&



$$



PZZ150-153-156-170-173-176-151230-

/O.CON.KSEW.SC.Y.0302.171215T1400Z-171216T1100Z/

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-

830 PM PST Thu Dec 14 2017



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM FRIDAY TO

3 AM PST SATURDAY...



* WIND...Northwest 15 to 25 knots developing.



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.



&&



$$





www.weather.gov/seattle





547 

WHUS76 KSEW 151018

MWWSEW



URGENT - MARINE WEATHER MESSAGE

National Weather Service Seattle WA

218 AM PST Fri Dec 15 2017



PZZ150-153-156-170-173-176-151830-

/O.CON.KSEW.SC.Y.0302.171215T1400Z-171216T1100Z/

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-

218 AM PST Fri Dec 15 2017



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING

TO 3 AM PST SATURDAY...



* WIND...Northwest 15 to 25 knots developing.



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.



&&



$$



PZZ130>132-151830-

/O.CON.KSEW.SC.Y.0302.171216T0000Z-171216T1100Z/

West Entrance U.S. Waters Strait Of Juan De Fuca-

Central U.S. Waters Strait Of Juan De Fuca-

East Entrance U.S. Waters Strait Of Juan De Fuca-

218 AM PST Fri Dec 15 2017



...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 PM THIS

AFTERNOON TO 3 AM PST SATURDAY...



* WIND...West 15 to 25 knots developing late in the afternoon 

  through evening. 



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.



&&



$$





www.weather.gov/seattle





155 

WHUS76 KSEW 151619

MWWSEW



URGENT - MARINE WEATHER MESSAGE

National Weather Service Seattle WA

819 AM PST Fri Dec 15 2017



PZZ130>132-160030-

/O.EXT.KSEW.SC.Y.0302.171215T2100Z-171216T1100Z/

West Entrance U.S. Waters Strait Of Juan De Fuca-

Central U.S. Waters Strait Of Juan De Fuca-

East Entrance U.S. Waters Strait Of Juan De Fuca-

819 AM PST Fri Dec 15 2017



...SMALL CRAFT ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON TO

3 AM PST SATURDAY...



* WIND...West 15 to 25 knots developing during the afternoon 

  through this evening. 



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.



&&



$$



PZZ150-153-156-170-173-176-160030-

/O.CON.KSEW.SC.Y.0302.000000T0000Z-171216T1100Z/

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-

819 AM PST Fri Dec 15 2017



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

SATURDAY...



* WIND...Northwest 15 to 25 knots.



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.



&&



$$





www.weather.gov/seattle





366 

WHUS76 KSEW 152241

MWWSEW



URGENT - MARINE WEATHER MESSAGE

National Weather Service Seattle WA

241 PM PST Fri Dec 15 2017



PZZ150-153-156-170-173-176-160645-

/O.CON.KSEW.SC.Y.0302.000000T0000Z-171216T1100Z/

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-

241 PM PST Fri Dec 15 2017



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

SATURDAY...



* WIND...Northwest 15 to 25 knots.



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.



&&



$$



PZZ130>132-160645-

/O.CON.KSEW.SC.Y.0302.000000T0000Z-171216T1100Z/

West Entrance U.S. Waters Strait Of Juan De Fuca-

Central U.S. Waters Strait Of Juan De Fuca-

East Entrance U.S. Waters Strait Of Juan De Fuca-

241 PM PST Fri Dec 15 2017



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

SATURDAY...



* WIND...West 15 to 25 knots. 



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.



&&



$$





www.weather.gov/seattle






795 

FPUS56 KSEW 160459 AAA

ZFPSEW



Zone Forecast Product for Western Washington...UPDATED

National Weather Service Seattle WA

859 PM PST Fri Dec 15 2017



Spot temperatures and probabilities of measurable precipitation

are for tonight, Saturday, Saturday night, and Sunday.



WAZ558-161215-

Seattle and Vicinity-

Including the cities of Seattle, Shoreline, Federal Way, and Kent

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy with scattered rain showers. Lows in the

30s to lower 40s. Southeast wind to 10 mph becoming south after

midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. South wind to 10 mph. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a tenth to a

quarter of an inch possible. Lows near 40. South wind 10 to

15 mph. 

.SUNDAY...Rain at times. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. South wind 10 to

15 mph. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts a tenth to a

quarter of an inch possible. Lows in the upper 30s to mid 40s.

South wind 10 to 15 mph decreasing to 10 mph or less after

midnight. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid to upper

40s. 

.MONDAY NIGHT...Rain likely. Lows in the lower 40s. 

.TUESDAY...Rain at times. Highs near 50. 

.TUESDAY NIGHT...Rain showers. Lows in the upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 30s. 

.THURSDAY...Mostly sunny. Highs in the lower 40s. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Partly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Seattle           37   44   41   47  /  50   40   60   80 



$$



WAZ559-161215-

Bremerton and Vicinity-

Including the cities of Bremerton and Silverdale

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy with isolated rain showers. Lows in the

30s. Light wind. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. Light wind becoming south around 10 mph in the

afternoon. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a tenth to a

quarter of an inch possible. Lows near 40. South wind 10 to

15 mph. 

.SUNDAY...Rain likely. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. South wind 10 to

15 mph becoming southwest in the afternoon. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows in the lower 40s. Light wind. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid to upper

40s. 

.MONDAY NIGHT...Rain at times. Lows in the lower 40s. 

.TUESDAY...Rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers likely. Lows in the mid to upper

30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 30s. 

.THURSDAY...Mostly sunny. Highs around 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Partly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Bremerton         33   44   38   47  /  20   40   70   80 



$$



WAZ507-161215-

Everett and Vicinity-

Including the cities of Everett, Edmonds, Lynnwood, Marysville, 

and Arlington

859 PM PST Fri Dec 15 2017



.TONIGHT...Numerous rain showers in the evening, then mostly

cloudy with isolated rain showers after midnight. Rainfall

amounts a quarter to a half inch possible. Lows in the mid to

upper 30s. South wind 10 to 15 mph decreasing to 10 mph or less

after midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. Southeast wind to 10 mph. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a tenth to a

quarter of an inch possible. Lows near 40. Southeast wind 10 to

20 mph. 

.SUNDAY...Rain at times. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. Southeast wind

10 to 20 mph becoming south 10 to 15 mph in the afternoon. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows near 40. South wind to 10 mph in

the evening becoming light. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows in the lower 40s. 

.TUESDAY...Rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Edmonds           37   45   40   47  /  50   40   60   80 

Everett           38   44   40   47  /  70   40   60   80 



$$



WAZ509-161215-

Tacoma Area-

Including the cities of Tacoma, Lakewood, Puyallup, and Sumner

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy with isolated rain showers. Lows in the

30s. South wind to 10 mph. 

.SATURDAY...Mostly cloudy with a chance of rain. Highs in the

lower to mid 40s. South wind to 10 mph increasing to 10 to 15 mph

in the afternoon. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a tenth to a

quarter of an inch possible. Lows in the mid 30s to lower 40s.

South wind 10 to 20 mph. 

.SUNDAY...Breezy. Rain at times. Rainfall amounts a tenth to a

quarter of an inch possible. Highs in the mid to upper 40s. South

wind 15 to 25 mph. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows near 40. Southwest wind 10 to

15 mph. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid to upper

40s. 

.MONDAY NIGHT...Rain likely. Lows in the lower 40s. 

.TUESDAY...Rain at times. Highs near 50. 

.TUESDAY NIGHT...Rain showers. Lows in the mid to upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Puyallup          34   45   39   47  /  50   40   60   80 

Tacoma            33   45   38   47  /  20   40   60   80 



$$



WAZ556-161215-

Bellevue and Vicinity-

Including the cities of Bellevue, Kirkland, Redmond, and Issaquah

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy with scattered rain showers. Lows in the

mid to upper 30s. Southeast wind to 10 mph becoming south after

midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. South wind to 10 mph. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a tenth to a

quarter of an inch possible. Lows near 40. Southeast wind 10 to

15 mph. 

.SUNDAY...Rain. Rainfall amounts a quarter to a half inch

possible. Highs in the mid to upper 40s. South wind 10 to 15 mph

decreasing to 10 mph or less in the afternoon. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts a tenth to a

quarter of an inch possible. Lows near 40. South wind to 10 mph. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid to upper

40s. 

.MONDAY NIGHT...Rain likely. Lows in the lower 40s. 

.TUESDAY...Rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Bellevue          37   45   41   48  /  40   40   60   80 



$$



WAZ555-161215-

East Puget Sound Lowlands-

Including the cities of Gold Bar, Enumclaw, North Bend, 

and Buckley

859 PM PST Fri Dec 15 2017



.TONIGHT...Numerous rain showers in the evening, then mostly

cloudy with scattered rain showers after midnight. Rainfall

amounts a quarter to a half inch possible. Lows in the 30s. South

wind to 10 mph. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. Light wind. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a quarter to a

half inch possible. Lows in the mid to upper 30s. Southeast wind

to 10 mph. 

.SUNDAY...Rain. Rainfall amounts a half inch to one inch

possible. Highs in the 40s. Southeast wind 10 to 15 mph becoming

south in the afternoon. 

.SUNDAY NIGHT...Rain showers. Rainfall amounts a quarter to a

half inch possible. Lows near 40. South wind to 10 mph in the

evening becoming light. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows near 40. 

.TUESDAY...Rain at times. Highs in the mid to upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the mid to upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the upper 20s. 

.FRIDAY...Partly sunny. Highs near 40. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Gold Bar          37   45   39   45  /  80   30   60   90 

Enumclaw          32   44   36   47  /  80   40   50   80 

North Bend        35   44   38   46  /  70   30   60   90 



$$



WAZ503-161215-

Western Whatcom County-

Including the cities of Bellingham, Blaine, and Lynden

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy in the evening, then mostly cloudy with

isolated rain showers after midnight. Lows in the mid to upper

30s. Southwest wind 10 to 20 mph becoming south to 10 mph after

midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. South wind 10 to 15 mph. 

.SATURDAY NIGHT...Windy. Rain likely in the evening, then rain at

times after midnight. Rainfall amounts a tenth to a quarter of an

inch possible. Lows near 40. South wind 15 to 25 mph becoming

southeast 20 to 30 mph after midnight. 

.SUNDAY...Windy. Rain at times. Rainfall amounts a tenth to a

quarter of an inch possible. Highs in the mid to upper 40s. South

wind 20 to 30 mph decreasing to 10 to 20 mph in the afternoon. 

.SUNDAY NIGHT...Cloudy with a chance of rain showers. Lows near

40. Southwest wind 10 to 15 mph becoming west after midnight. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows near 40. 

.TUESDAY...Breezy, rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the mid to upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain and snow

showers. Snow level near 1000 feet. Highs in the lower 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Bellingham        36   45   40   48  /  20   40   80   70 

Sumas             36   44   39   46  /  30   40   80   70 



$$



WAZ506-161215-

Western Skagit County-

Including the cities of Mount Vernon, Anacortes, Sedro-Woolley, 

and Burlington

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy with isolated rain showers. Lows in the

mid 30s to lower 40s. South wind 10 to 15 mph becoming southeast

after midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the lower to

mid 40s. Southeast wind to 10 mph increasing to 10 to 15 mph in

the afternoon. 

.SATURDAY NIGHT...Breezy. Rain likely. Rainfall amounts a tenth

to a quarter of an inch possible. Lows near 40. Southeast wind

15 to 25 mph. 

.SUNDAY...Rain likely. Rainfall amounts a quarter to a half inch

possible. Highs in the mid to upper 40s. Southeast wind 10 to

20 mph. 

.SUNDAY NIGHT...Cloudy with a chance of showers. Lows near 40.

South wind to 10 mph becoming west after midnight. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows in the lower 40s. 

.TUESDAY...Rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the upper 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Anacortes         40   45   42   47  /  20   40   80   70 

Mount Vernon      38   45   40   47  /  20   40   70   70 



$$



WAZ001-161215-

San Juan County-

Including the cities of Friday Harbor, East Sound, 

and Roche Harbor

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy. Isolated rain showers in the evening.

Lows near 40. West wind 10 to 15 mph. 

.SATURDAY...Cloudy with a chance of rain. Highs in the 40s. West

wind to 10 mph becoming southeast in the afternoon. 

.SATURDAY NIGHT...Breezy. Rain likely in the evening, then rain

at times after midnight. Rainfall amounts a tenth to a quarter of

an inch possible. Lows near 40. Southeast wind 15 to 25 mph. 

.SUNDAY...Rain likely. Rainfall amounts less than a tenth of an

inch likely. Highs in the mid to upper 40s. Southeast wind 10 to

20 mph becoming south around 10 mph in the afternoon. 

.SUNDAY NIGHT...Cloudy with a chance of showers. Lows near 40.

West wind 10 to 15 mph. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows in the lower 40s. 

.TUESDAY...Breezy, rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers likely. Lows near 40. 

.WEDNESDAY...Mostly cloudy with a chance of rain and snow

showers. Snow level near 1000 feet. Highs in the lower to mid

40s. 

.WEDNESDAY NIGHT...Mostly clear. Lows in the mid to upper 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower to mid 30s. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Friday Harbor     38   46   41   48  /  10   50   80   70 

Eastsound         39   46   42   48  /  10   50   80   70 



$$



WAZ510-161215-

Admiralty Inlet Area-

Including the cities of Port Townsend and Port Ludlow

859 PM PST Fri Dec 15 2017



.TONIGHT...Breezy. Mostly cloudy. Scattered rain showers in the

evening, then isolated rain showers after midnight. Lows in the

30s to lower 40s. West wind 15 to 25 mph becoming south 10 to

15 mph after midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the 40s. South

wind to 10 mph becoming southeast in the afternoon. 

.SATURDAY NIGHT...Breezy. Rain likely. Rainfall amounts a tenth

to a quarter of an inch possible. Lows in the mid 30s to lower

40s. Southeast wind 15 to 25 mph. 

.SUNDAY...Breezy. Rain likely. Rainfall amounts a tenth to a

quarter of an inch possible. Highs in the mid 40s to lower 50s.

Southeast wind 15 to 25 mph becoming south 10 to 15 mph in the

afternoon. 

.SUNDAY NIGHT...Cloudy with a chance of rain showers. Lows in the

mid 30s to lower 40s. West wind 10 to 15 mph. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid to upper

40s. 

.MONDAY NIGHT...Rain likely. Lows in the lower to mid 40s. 

.TUESDAY...Breezy. Rain likely. Highs near 50. 

.TUESDAY NIGHT...Rain showers likely. Lows near 40. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Oak Harbor        40   47   42   50  /  20   40   80   70 

Port Townsend     38   45   41   47  /  20   40   80   60 



$$



WAZ511-161215-

Hood Canal Area-

Including the cities of Hoodsport and Brinnon

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy in the evening, then mostly cloudy with

isolated rain showers after midnight. Lows in the 30s. West wind

10 to 15 mph becoming south after midnight. 

.SATURDAY...Mostly cloudy with a chance of rain. Highs in the

40s. South wind to 10 mph increasing to 10 to 15 mph in the

afternoon. 

.SATURDAY NIGHT...Breezy. Cloudy with a chance of rain in the

evening, then rain likely after midnight. Rainfall amounts a

tenth to a quarter of an inch possible. Lows in the mid 30s to

lower 40s. South wind 15 to 25 mph. 

.SUNDAY...Rain likely. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. South wind 10 to

20 mph. 

.SUNDAY NIGHT...Rain showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows near 40. Southwest wind 10 to

15 mph becoming west after midnight. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows near 40. 

.TUESDAY...Rain. Highs in the mid to upper 40s. 

.TUESDAY NIGHT...Rain showers likely. Lows in the mid to upper

30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Partly sunny. Highs near 40. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Shelton           34   46   39   48  /  10   40   70   80 



$$



WAZ504-161215-

Southwest Interior-

Including the cities of Olympia, Lacey, Tumwater, Centralia, 

and Toledo

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy. Isolated rain showers in the evening.

Lows in the lower to mid 30s. West wind 10 to 15 mph becoming

south after midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the 40s. South

wind to 10 mph increasing to 10 to 15 mph in the afternoon. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain likely after midnight. Rainfall amounts a tenth to a

quarter of an inch possible. Lows in the mid 30s to lower 40s.

South wind 10 to 20 mph. 

.SUNDAY...Breezy. Rain at times. Rainfall amounts a quarter to a

half inch possible. Highs in the 40s. South wind 15 to 25 mph. 

.SUNDAY NIGHT...Rain showers likely. Rainfall amounts a tenth to

a quarter of an inch possible. Lows near 40. South wind 10 to

15 mph becoming southwest after midnight. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid to upper

40s. 

.MONDAY NIGHT...Rain likely. Lows in the lower 40s. 

.TUESDAY...Rain at times. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the mid 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs near 40. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the upper 20s. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Chehalis          36   46   39   47  /  10   30   60   80 

Olympia           35   45   39   46  /  10   40   70   80 



$$



WAZ512-161215-

Lower Chehalis Valley Area-

Including the city of Montesano

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy in the evening then becoming mostly

cloudy. Lows in the 30s. West wind to 10 mph becoming south after

midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the mid to

upper 40s. Light wind. 

.SATURDAY NIGHT...Cloudy with a chance of rain in the evening,

then rain after midnight. Rainfall amounts a quarter to a half

inch possible. Lows near 40. South wind to 10 mph increasing to

10 to 15 mph after midnight. 

.SUNDAY...Rain. Rainfall amounts a quarter to a half inch

possible. Highs near 50. South wind 10 to 15 mph becoming

southwest in the afternoon. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows near 40. Light wind. 

.MONDAY...Rain likely. Highs in the mid to upper 40s. 

.MONDAY NIGHT...Rain at times. Lows in the lower 40s. 

.TUESDAY...Rain. Highs in the upper 40s. 

.TUESDAY NIGHT...Rain showers. Lows in the mid 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs in the lower 40s. 

.THURSDAY NIGHT...Mostly cloudy. Lows near 30. 

.FRIDAY...Mostly sunny. Highs in the lower 40s. 



$$



WAZ514-161215-

Eastern Strait of Juan de Fuca-

Including the cities of Sequim and Port Angeles

859 PM PST Fri Dec 15 2017



.TONIGHT...Breezy. Partly cloudy. Isolated rain showers in the

evening. Lows in the mid to upper 30s. West wind 15 to 25 mph

decreasing to 10 to 15 mph after midnight. 

.SATURDAY...Cloudy with a chance of rain. Highs in the mid to

upper 40s. Wind variable to 10 mph. 

.SATURDAY NIGHT...Rain likely in the evening, then rain at times

after midnight. Rainfall amounts a tenth to a quarter of an inch

possible. Lows near 40. Southeast wind 10 to 15 mph becoming

variable to 10 mph after midnight. 

.SUNDAY...Rain likely. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. Light wind

becoming variable to 10 mph in the afternoon. 

.SUNDAY NIGHT...Cloudy with a chance of rain showers. Lows near

40. West wind 10 to 15 mph. 

.MONDAY...Cloudy with a chance of rain. Highs in the mid 40s. 

.MONDAY NIGHT...Rain at times. Lows in the upper 30s. 

.TUESDAY...Rain. Highs in the mid to upper 40s. 

.TUESDAY NIGHT...Rain showers likely. Lows in the mid 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain and snow

showers. Snow level near 1500 feet. Highs in the lower to mid

40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs in the lower 40s. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Partly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Port Angeles      37   47   39   48  /  10   50   80   60 

Sequim            35   46   38   47  /  10   50   80   60 



$$



WAZ515-161215-

Western Strait of Juan De Fuca-

Including the cities of Joyce and Clallam Bay

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy in the evening then becoming mostly

cloudy. Lows in the mid to upper 30s. West wind 10 to 20 mph

becoming southwest 10 to 15 mph after midnight. 

.SATURDAY...Rain likely. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. Light wind

becoming variable to 10 mph in the afternoon. 

.SATURDAY NIGHT...Rain at times. Rainfall amounts a quarter to a

half inch possible. Lows near 40. Southeast wind 10 to 15 mph

becoming east after midnight. 

.SUNDAY...Rain likely. Rainfall amounts a tenth to a quarter of

an inch possible. Highs in the mid to upper 40s. Southwest wind

10 to 15 mph becoming variable to 10 mph in the afternoon. 

.SUNDAY NIGHT...Rain showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows near 40. Wind variable to 10 mph

becoming light after midnight. 

.MONDAY...Rain likely. Highs in the mid 40s. 

.MONDAY NIGHT...Rain. Lows in the upper 30s. 

.TUESDAY...Rain. Rain may be heavy at times. Highs in the mid to

upper 40s. 

.TUESDAY NIGHT...Breezy. Rain showers likely. Lows in the lower

to mid 30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs in the lower 40s. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Partly sunny. Highs in the lower 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Sekiu             38   47   41   49  /  10   70  100   60 



$$



WAZ516-161215-

North Coast-

Including the cities of Neah Bay, La Push, and Forks

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy in the evening then becoming mostly

cloudy. Lows in the mid 30s to lower 40s. Northwest wind 10 to

20 mph becoming west 10 to 15 mph after midnight. 

.SATURDAY...Rain likely. Rainfall amounts a quarter to a half

inch possible. Highs in the mid to upper 40s. Southeast wind to

10 mph becoming south in the afternoon. 

.SATURDAY NIGHT...Breezy, rain. Rainfall amounts a half inch to

one inch possible. Lows in the upper 30s to mid 40s. South wind

15 to 25 mph. 

.SUNDAY...Rain likely. Rainfall amounts a quarter to a half inch

possible. Highs near 50. South wind 10 to 15 mph becoming west in

the afternoon. 

.SUNDAY NIGHT...Rain showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows near 40. West wind to 10 mph in the

evening becoming light. 

.MONDAY...Rain likely. Highs in the mid to upper 40s. 

.MONDAY NIGHT...Rain. Lows in the lower 40s. 

.TUESDAY...Windy, rain. Rain may be heavy at times. Highs in the

mid to upper 40s. 

.TUESDAY NIGHT...Breezy. Rain showers likely. Lows in the mid

30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the lower to mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the lower to mid 30s. 

.THURSDAY...Mostly sunny. Highs in the lower to mid 40s. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Partly sunny. Highs in the lower to mid 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Forks             39   47   42   49  /  10   80   90   60 



$$



WAZ517-161215-

Central Coast-

Including the cities of Hoquiam, Aberdeen, Westport, 

and Ocean Shores

859 PM PST Fri Dec 15 2017



.TONIGHT...Partly cloudy in the evening then becoming mostly

cloudy. Lows in the mid 30s to lower 40s. Northwest wind 10 to

20 mph becoming north 10 to 15 mph after midnight. 

.SATURDAY...Rain likely in the morning, then cloudy with a chance

of rain in the afternoon. Rainfall amounts a tenth to a quarter

of an inch possible. Highs in the mid to upper 40s. Light wind

becoming south to 10 mph in the afternoon. 

.SATURDAY NIGHT...Rain. Rainfall amounts a half inch to one inch

possible. Lows in the lower to mid 40s. Southeast wind 10 to

20 mph. 

.SUNDAY...Rain. Rainfall amounts a quarter to a half inch

possible. Highs near 50. South wind 10 to 15 mph becoming west in

the afternoon. 

.SUNDAY NIGHT...Showers likely. Rainfall amounts less than a

tenth of an inch likely. Lows in the upper 30s to mid 40s. West

wind to 10 mph in the evening becoming light. 

.MONDAY...Rain likely. Highs in the mid to upper 40s. 

.MONDAY NIGHT...Rain at times. Lows in the lower 40s. 

.TUESDAY...Windy, rain. Rain may be heavy at times. Highs in the

upper 40s. 

.TUESDAY NIGHT...Breezy. Rain showers likely. Lows in the upper

30s. 

.WEDNESDAY...Mostly cloudy with a chance of rain showers. Highs

in the mid 40s. 

.WEDNESDAY NIGHT...Partly cloudy. Lows in the mid 30s. 

.THURSDAY...Mostly sunny. Highs in the lower to mid 40s. 

.THURSDAY NIGHT...Mostly cloudy. Lows in the lower 30s. 

.FRIDAY...Partly sunny. Highs in the lower to mid 40s. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Hoquiam           40   47   43   49  /  10   60   90   80 



$$



WAZ513-161215-

Olympics-

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy. Isolated showers ending by midnight.

Snow level near 2500 feet.

.SATURDAY...Rain or snow likely. Snow level near 2500 feet. Snow 

accumulation near Hurricane Ridge around 1 inch. 

.SATURDAY NIGHT...Rain or snow. Snow level rising to near 6000 

feet. Rainfall amounts a half inch to one inch possible. Snow 

accumulation near Hurricane Ridge up to 1 inch.

.SUNDAY...Rain. Snow level near 6500 feet. Rainfall amounts a 

quarter to a half inch possible. 

.SUNDAY NIGHT...Showers likely. Snow level near 5500 feet.

Rainfall amounts less than a tenth of an inch likely. 

.MONDAY...Rain or snow likely. Snow level near 4500 feet. 

.MONDAY NIGHT...Rain and snow. Snow level near 4000 feet. 

.TUESDAY...Rain and snow. Snow level near 5000 feet. 

.TUESDAY NIGHT...Showers. Snow level near 2000 feet. 

.WEDNESDAY...Partly sunny with a chance of showers. Snow level

near 1500 feet. 

.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.

Snow level near 1000 feet. 

.THURSDAY...Mostly sunny. Freezing level near 3500 feet. 

.THURSDAY NIGHT...Mostly cloudy. Freezing level near 4500 feet. 

.FRIDAY...Partly sunny. Freezing level near 5000 feet. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Hurricane Ridge   23   32   28   37  /  20   70  100   80 



$$



WAZ567-161215-

Cascades of Whatcom and Skagit Counties-

Including the cities of Marblemount and Concrete

859 PM PST Fri Dec 15 2017



.TONIGHT...Mostly cloudy with scattered showers. Snow level near

2000 feet. 

.SATURDAY...Mostly cloudy with a chance of rain or snow. Snow 

level near 1500 feet. 

.SATURDAY NIGHT...Rain or snow. Snow level near 1500 feet. Snow 

accumulation of 1 to 3 inches. 

.SUNDAY...Rain or snow. Snow level rising to near 4000 feet. 

Rainfall amounts a half inch to one inch possible.

.SUNDAY NIGHT...Showers. Snow level near 4000 feet. Rainfall

amounts a tenth to a quarter of an inch possible. 

.MONDAY...Cloudy with a chance of rain or snow. Snow level near 

3500 feet. 

.MONDAY NIGHT...Rain and snow. Snow level near 2000 feet. 

.TUESDAY...Rain and snow. Snow level near 4000 feet. Rain may be

heavy at times. 

.TUESDAY NIGHT...Showers. Snow level near 2500 feet. 

.WEDNESDAY...Mostly cloudy with a chance of showers. Snow level

near 1000 feet. 

.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.

Snow level near sea level. 

.THURSDAY...Mostly sunny. Freezing level near 1500 feet. 

.THURSDAY NIGHT...Mostly cloudy. Freezing level near 1500 feet. 

.FRIDAY...Partly sunny. Freezing level near 1500 feet. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Mount Baker       26   31   28   34  /  50   30   80   90 



$$



WAZ568-161215-

Cascades of Snohomish and King Counties-

Including the cities of Snoqualmie Pass, Darrington, and Index

859 PM PST Fri Dec 15 2017



.TONIGHT...Showers becoming scattered after midnight. Snow level 

near 2000 feet. Snow accumulation of 1 to 4 inches. West wind in 

the passes 10 to 15 mph. 

.SATURDAY...Cloudy with a chance of rain or snow. Snow level near

1500 feet. Afternoon pass temperatures in the lower to mid 30s. 

West wind in the passes around 10 mph. 

.SATURDAY NIGHT...Cloudy with a chance of rain or snow. Snow 

level near 2000 feet. Light wind in the passes becoming east to 10

mph after midnight. 

.SUNDAY...Rain or snow. Snow level rising to near 4500 feet. 

Rainfall amounts a half inch to one inch possible. Afternoon pass 

temperatures in the lower to mid 30s. East wind in the passes to 

10 mph becoming west in the afternoon. 

.SUNDAY NIGHT...Showers. Snow level near 5000 feet. Rainfall

amounts a quarter to a half inch possible. West wind in the

passes 10 to 15 mph. 

.MONDAY...Rain or snow likely. Snow level near 4000 feet. 

.MONDAY NIGHT...Rain and snow. Snow level near 3000 feet. 

.TUESDAY...Rain and snow. Snow level near 4500 feet. 

.TUESDAY NIGHT...Showers. Snow level near 3000 feet. 

.WEDNESDAY...Mostly cloudy with a chance of showers. Snow level

near 1500 feet. 

.WEDNESDAY NIGHT...Partly cloudy with a slight chance of showers.

Snow level near 500 feet. 

.THURSDAY...Mostly sunny. Freezing level near 1500 feet. 

.THURSDAY NIGHT...Mostly cloudy. Freezing level near 1500 feet. 

.FRIDAY...Partly sunny. Freezing level near 2500 feet. 



&&

                  TEMPERATURE         /       PRECIPITATION        



Snoqualmie Pass   28   34   28   35  /  90   40   50   90 

Stevens Pass      24   30   25   31  /  70   40   40   90 



$$



WAZ569-161215-

Cascades of Pierce and Lewis Counties-

Including the cities of Randle, Packwood, Ashford, and Morton

859 PM PST Fri Dec 15 2017



.TONIGHT...Showers becoming scattered after midnight. Snow level 

near 2500 feet. Snow accumulation of 1 to 4 inches. 

.SATURDAY...Mostly cloudy with a chance of rain or snow. Snow 

level near 2000 feet. 

.SATURDAY NIGHT...Rain or snow likely after midnight. Snow level 

rising to near 3500 feet. 

.SUNDAY...Rain or snow. Snow level rising to near 5500 feet. 

Rainfall amounts a half inch to one inch possible.

.SUNDAY NIGHT...Showers. Snow level near 5500 feet. Rainfall

amounts a quarter to a half inch possible. 

.MONDAY...Rain or snow likely. Snow level near 5000 feet. 

.MONDAY NIGHT...Rain and snow. Snow level near 4500 feet. 

.TUESDAY...Rain and snow. Snow level near 4500 feet. 

.TUESDAY NIGHT...Showers. Snow level near 3500 feet. 

.WEDNESDAY...Mostly cloudy with a chance of showers. Snow level

near 1500 feet. 

.WEDNESDAY NIGHT...Mostly cloudy with a slight chance of showers.

Snow level near 500 feet. 

.THURSDAY...Mostly sunny. Freezing level near 2500 feet. 

.THURSDAY NIGHT...Mostly cloudy. Freezing level near 3500 feet. 

.FRIDAY...Partly sunny. Freezing level near 4000 feet. 



$$






904 

FXUS66 KSEW 152304

AFDSEW



Area Forecast Discussion

National Weather Service Seattle WA

304 PM PST Fri Dec 15 2017



.SYNOPSIS...Showers will wind down tonight as a trough exits and

onshore flow eases. A weak warm front will clip the coast on

Saturday with a chance of rain in the interior. Showers will

increase on Sunday as a cold front crosses the region. A stronger

and wetter Pacific system will impact the area on Tuesday with

heavy snow possible in the mountains. A ridge will bring dry

weather toward the latter half of next week. 



&&



.SHORT TERM...A weak cold front moved inland this morning and now

we're in post-frontal onshore flow. Showers are scattered but

there is some enhancement in the activity over Snohomish county 

due to a Puget Sound Convergence Zone. Models show the convergence

zone shifting south into King county this evening. After 

midnight, most of the shower activity should be confined to the 

Cascades. 



The next system, on Saturday, is a warm front that will mainly

clip the coast then dissipate over southern B.C. There's a chance

of showers in the interior but precip amounts will be light. 

Showers will increase on Sunday as the cold front shifts SE into 

Western Washington. Snow levels will waver from 3,000-5,000 feet 

and the volcanoes may see a period of heavy snow. Another warm 

front will reach the area on Monday for more wet weather. 33



.LONG TERM...A stronger and wetter Pacific frontal system will

impact the region on Tuesday. The likely main impact is heavy 

snow in the Cascades. Models are showing a wet system draped over

W WA during this period and snow levels will be dropping from

around 5,000 to 3,000 feet through the day as a cool upper level

trough moves inland. Heavy snow could affect travel over the

passes. There were some concerns with the winds as the surface 

low moves inland but the 12z model solutions are backing off, 

especially the ECMWF and Canadian. These two solutions bring the 

low inland farther south with a weaker pressure gradient over the 

interior. The GFS still shows the low passing through the B.C./WA 

border but the 12 and 18z solutions are both weaker compared to 

previous runs. We'll see how this evolves over the next series of 

solutions. This system does appear to be a quick mover and 

showers will wind down Tuesday night as this system exits. Beyond 

then, another strong upper level ridge builds over the Pac NW for 

another period of dry/stable weather. 33



&&



.AVIATION...An upper trough over the region late this afternoon 

will shift eastward tonight. Moderate northwest aloft becoming 

southwesterly by late Saturday ahead of the next system. The air 

will be moist only slightly unstable with showers, decreasing later 

this evening. 



A Puget Sound Convergence Zone could still develop at any time 

through this evening. There now appears to a chance, perhaps 

around 50 percent, that a convergence zone could push down over 

BFI and SEA with a north wind shift possible through around 9pm. 

The wind shift is already indicated in the TAFS.



KSEA...Mostly MVFR through tonight, with showers and a possible 

convergence zone this evening. Southwest 5-10 mph switching to north 

possibly for few hours (best chance early evening). DTM



&&



.MARINE...Onshore flow will bring small craft winds to the coastal 

waters and Strait through most of tonight before easing. A lull in 

wind is expected across the waters most of the day.



A warm front will move through the waters late Saturday night into 

Sunday. Some small craft advisory conditions are likely across the 

waters, mainly north of Puget Sound. 



By Tuesday, a stronger low could track near Western Washington. 

Small craft winds or some gales are possible, but forecast 

confidence is low at this time. DTM



&&



.HYDROLOGY...River flooding is not expected in the next 7 days.





&&



.SEW WATCHES/WARNINGS/ADVISORIES...

WA...None.

PZ...Small Craft Advisory until 3 AM PST Saturday for Central U.S. 

     Waters Strait Of Juan De Fuca-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-West 

     Entrance U.S. Waters Strait Of Juan De Fuca.



&&



$$



www.weather.gov/seattle