Thursday, December5, 2019
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Marine Weather and Tides
Artondale, WA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:38AMSunset 4:22PM Thursday December 5, 2019 9:12 AM PST (17:12 UTC) Moonrise 1:45PMMoonset 12:32AM Illumination 63% Phase: Waxing Gibbous; Moon at 9 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ135 Puget Sound And Hood Canal- 844 Am Pst Thu Dec 5 2019
Today..Light wind becoming se to 10 kt in the afternoon. Wind waves 1 ft or less. Areas of drizzle and fog in the morning.
Tonight..SE wind to 10 kt. Wind waves 1 ft or less.
Fri..S wind 5 to 15 kt becoming variable in the afternoon. Wind waves 2 ft or less. A chance of rain.
Fri night..S wind to 10 kt becoming variable after midnight. Wind waves 1 ft or less.
Sat..SE wind to 10 kt. Wind waves 1 ft or less.
Sat night..Light wind becoming N to 10 kt after midnight. Wind waves 1 ft or less.
Sun..W wind to 10 kt becoming s. Wind waves 1 ft or less.
Mon..S wind to 10 kt becoming light. Wind waves 1 ft or less.
PZZ100 844 Am Pst Thu Dec 5 2019
Synopsis for the northern and central washington coastal and inland waters..Offshore flow will persist across the waters today and will strengthen into Friday. Offshore flow will continue into the weekend as a surface low weakens over the offshore waters before moving inland along the oregon coast.


7 Day Forecast for Marine Location Near Artondale, WA
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location: 47.28, -122.65     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 051646 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 846 AM PST Thu Dec 5 2019

UPDATE. Plenty of low level moisture still in place across the region this morning and this will be slow to erode. An increase in low level offshore flow should help scour out some of the stratus with time, but higher level clouds will remain. Forecast on track and no short term updates anticipated. Applicable updates to aviation and marine discussions are below. 27

PREV DISCUSSION. /issued 359 AM PST Thu Dec 5 2019/

SYNOPSIS. Weak high pressure building over the area today with a warm front passing by to the west. Moisture spinning around an upper level low off the Oregon coast will move into Western Washington later Friday into Saturday. The low will weaken and move east Saturday night. An upper level ridge will build offshore Sunday for a short dry spell. Next system arriving Tuesday.

SHORT TERM /TODAY THROUGH SATURDAY/. Satellite imagery shows cloudy skies over Western Washington early this morning with some small breaks near the Canadian border. Temperatures at 3 am/11z were in the 40s.

Weak upper level ridge building over Western Washington today but the low level flow remains light and there is plenty of low level moisture left behind from the weak front yesterday. Weak warm front moving by to the west in the afternoon increasing the high cloud cover over the area making it even harder for the low level moisture to scour out. A little bit of subsidence with the ridge building this morning could squeeze out some drizzle anywhere in the lowlands. Outside of the morning drizzle just a chance of rain along the north coast late in the day as the warm front brushes by to the west. Under cloudy skies highs today just a couple of degrees warmer than they are now, in the mid 40s to lower 50s.

Upper level low off the Oregon coast drifting east tonight which will pump up the weak ridge over the area slightly. Still could see some light rain over the extreme northern portion of the area with the warm front hanging out over British Columbia. Cloudy conditions continuing with lows in the 40s.

00z model trends have slowed down the northeastward movement of the cold front spinning out of the low off the Oregon coast as one would expect with the system becoming negatively tilted. Most of the energy once again moving into Northern California late in the day Friday leaving what is left of the system along the Washington coast in the afternoon. Have dried out the forecast for the interior Friday morning. Highs a couple of degrees either side of 50.

Splitting front moving through Western Washington Friday night with the low weakening into a upper level trough over the area Saturday. This will keep pops in the likely or higher category through Saturday but rainfall amounts will not be significant for December. Lows in the 40s. Highs Saturday in the upper 40s.

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Models and ensemble means in good agreement this morning with an upper level ridge building over Western Washington Sunday and Monday. Could be some lingering light showers/drizzle Sunday morning especially in the foothills. Ridge axis reaches the coast Monday night and moves inland on Tuesday opening the door to another weather system. This system on Tuesday has split written all over it so for now will just keep pops in the likely range. Upper level flow becoming consolidated Wednesday with a more organized system moving into Western Washington. Snow levels could drop down to around 4000 feet at times but for the most part all of the systems through Tuesday do not look like good snow producers for the mountains. Felton

AVIATION. A moist and stable air mass remains in place across Western Washington early this morning. Low level offshore flow will persist today as high pressure briefly builds in. Given abundant moisture still in place, widespread MVFR to IFR ceilings will persist through the morning hours, with a few spots briefly dropping to LIFR. Gradual improvement expected throughout the day as offshore flow increases.

KSEA . Low MVFR to IFR ceilings will continue this morning, with brief periods of LIFR possible at times. Ceilings and visibilities will gradually improve throughout the day. Should see a return to VFR between 21-23Z. Northerly winds today will become more northeasterly this evening, 3 to 8 kts. CEO/SB

MARINE. Offshore flow will prevail across western WA today, with the highest wind/waves over the western Strait of Juan de Fuca and the adjacent coastal waters - a Small Craft Advisory is in effect. Offshore flow will continue to strengthen into Friday with Small Craft Advisory winds likely over the Coastal Waters. Offshore flow will continue into the weekend as a surface low weakens over the Offshore Waters before shifting inland into Oregon. A brief period of Fraser River outflow winds may develop early Sunday, mostly affecting the Northern Inland Waters. 33/14

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

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 6 PM PST this evening for Coastal Waters From Cape Flattery To James Island Out 10 Nm-West Entrance U.S. Waters Strait Of Juan De Fuca.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 12 mi61 min N 1 G 1.9
TCNW1 - 9446484 - Tacoma, WA 13 mi61 min 47°F 51°F1017.2 hPa
WPOW1 - West Point, WA 29 mi73 min NNE 7 G 8 46°F 1016.7 hPa (+1.0)45°F
46120 36 mi34 min 47°F 1015.9 hPa42°F
46125 43 mi35 min 45°F 1016.3 hPa42°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tacoma, Tacoma Narrows Airport, WA4 mi20 minNE 36.00 miFog/Mist45°F43°F93%1016.9 hPa
Tacoma / McChord Air Force Base, WA12 mi75 minN 09.00 miOvercast45°F45°F100%1017.1 hPa
Fort Lewis / Gray U. S. Army Airfield, WA14 mi17 minN 05.00 miFog/Mist45°F45°F100%1017.1 hPa
Bremerton, Bremerton National Airport, WA15 mi17 minNE 310.00 miMostly Cloudy44°F41°F89%1018.9 hPa
Seattle, Seattle-Tacoma International Airport, WA21 mi20 minNE 43.00 miFog/Mist46°F42°F86%1017.5 hPa
Pierce County-Thun Field, WA23 mi38 minN 01.50 miFog/Mist45°F44°F100%1016.6 hPa

Link to 5 minute data for KTIW

Wind History from TIW (wind in knots)
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Last 24hrS6SW43CalmW3N4NE3NE4NE5N7N10NE8N6N7N7N6NE7N8NE65N4N7N5NE3
1 day agoSW4SW6SE4S6S5S9SW10W3SW4CalmCalmCalmSW3SW3S4S3S4S5S5SW4S7SW7SW6SW6
2 days agoCalmCalmS3NW3S4S5CalmCalmCalmCalmS3SE3CalmS3S6S5S5S3S6S4S5CalmS8S7

Tide / Current Tables for Arletta, Washington
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Arletta
Click for Map
Thu -- 12:32 AM PST     Moonset
Thu -- 05:00 AM PST     3.58 feet Low Tide
Thu -- 07:41 AM PST     Sunrise
Thu -- 12:41 PM PST     13.47 feet High Tide
Thu -- 01:44 PM PST     Moonrise
Thu -- 04:20 PM PST     Sunset
Thu -- 07:09 PM PST     4.28 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.686.95.44.13.6456.78.710.712.313.313.412.610.98.66.44.94.34.55.36.57.7

Tide / Current Tables for Hale Passage, West end, Washington Current
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Hale Passage
Click for Map
Thu -- 12:32 AM PST     Moonset
Thu -- 01:39 AM PST     -1.02 knots Max Ebb
Thu -- 06:05 AM PST     0.00 knots Slack
Thu -- 07:41 AM PST     Sunrise
Thu -- 07:54 AM PST     1.16 knots Max Flood
Thu -- 10:30 AM PST     -0.00 knots Slack
Thu -- 01:44 PM PST     Moonrise
Thu -- 03:36 PM PST     -1.32 knots Max Ebb
Thu -- 04:20 PM PST     Sunset
Thu -- 07:34 PM PST     0.00 knots Slack
Thu -- 08:35 PM PST     0.65 knots Max Flood
Thu -- 10:35 PM PST     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-1-1-0.9-0.8-0.5-00.81.20.90.3-0.2-0.7-1-1.2-1.3-1.3-1.2-0.8-0.30.40.60.3-0.1

Weather Map
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wmap_P
GEOS Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Seattle, WA (12,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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