Friday, December6, 2019
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Marine Weather and Tides
Burien, 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 7:40AMSunset 4:20PM Friday December 6, 2019 9:39 AM PST (17:39 UTC) Moonrise 2:03PMMoonset 1:34AM Illumination 73% Phase: Waxing Gibbous; Moon at 10 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- 803 Am Pst Fri Dec 6 2019
Today..SE wind to 10 kt. Wind waves 1 ft or less. A chance of rain in the afternoon.
Tonight..SE wind 5 to 15 kt. Wind waves 2 ft or less. Rain.
Sat..SW wind to 10 kt. Wind waves 1 ft or less. Rain likely.
Sat night..Light wind becoming N to 10 kt after midnight. Wind waves less than 1 ft becoming 1 ft or less after midnight.
Sun..N wind to 10 kt in the morning becoming light. Wind waves 1 ft or less in the morning becoming less than 1 ft.
Sun night..Light wind. Wind waves less than 1 ft.
Mon..Light wind. Wind waves less than 1 ft.
Tue..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 803 Am Pst Fri Dec 6 2019
Synopsis for the northern and central washington coastal and inland waters..Southeast flow will increase over the waters today and east late tonight. Weak low pressure on Saturday will give way to high pressure Sunday and Monday. A front will approach the area on Tuesday.


7 Day Forecast for Marine Location Near Burien, WA
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location: 47.48, -122.4     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 061614 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 814 AM PST Fri Dec 6 2019

UPDATE. Forecast still on track with warm front draped to the north of the region with negative tilt trough and associated cold front still offshore. Should see a decent shot of rain as front lifts northeast and dissipates over the area late tonight. Showers continue through much of Saturday. No forecast updates planned this morning. Aviation and marine discussions updated below. 27

PREV DISCUSSION. /issued 244 AM PST Fri Dec 6 2019/

SYNOPSIS. A weak front will spread light rain across Western Washington this evening through Saturday morning. The low will move east of the area Saturday night. An upper level ridge will build offshore Sunday for dry weather through early Tuesday. The next system should slide through later on Tuesday.

SHORT TERM /TODAY THROUGH SUNDAY/. Radar as of 2AM shows areas of light rain showers across portions of the northern Olympic Peninsula and North Interior as a warm front lifts through. Dry weather elsewhere with patchy low clouds and fog in spots. An area of low pressure well offshore will slide east through today. A weak front with this system will move onshore later today into tonight with light rain across Western Washington. The interior will stay generally dry through this afternoon as the rain moves onshore with showers overnight into Saturday morning. Snow levels with this system will be around 4500 feet, with at least a rain/snow mix and an inch or two possible at Stevens Pass. Showers will be in the area Saturday afternoon before diminishing Saturday night as the system moves east.

An upper level ridge will build offshore Sunday morning with drier weather expected along with areas of morning fog. Partly sunny skies expected by the afternoon. Temperatures into the weekend will be in the upper 40s to mid 50s across Western Washington. JD

LONG TERM /MONDAY THROUGH THURSDAY/. The upper level ridge will build over the area on Monday. Areas of fog expected on Monday with the ridge with mostly sunny conditions by afternoon. The ridge will slide east on Tuesday as the next frontal system approaches. The first system will move through later Tuesday into Tuesday night although it may weaken as it does slide across the area. Guidance does show a more substantial system may move through by Thursday with ensembles suggesting a more active pattern later next week. JD

AVIATION. There are patches of low clouds and fog this morning-- Olympia to Chehalis for example, and also near the Olympics. The next frontal system will move over the area by evening with cigs thickening up and rain spreading into the area later today. The radars don't really show a lot of precip in the frontal band off the Oregon coast, but the air mass will moisten up with lowering cigs tonight through Saturday morning. It might be drizzly Saturday morning with low cigs and areas of fairly low vsby as the frontal band breaks up over the area. Southwest flow aloft.

KSEA . Conditions should deteriorate to MVFR this evening and tonight with approaching system. Light southeast wind.

MARINE. A frontal system will give southeasterly flow over the waters through this evening and then winds will become fairly light over the weekend as the low pressure area fills. The next front will approach the area on Tuesday with southeasterly flow again ahead of the front--that front looks similar without any kinds of a westerly push behind it as it fizzles out over the area.

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

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory until 4 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- Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 6 PM PST this evening for 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
WPOW1 - West Point, WA 13 mi39 min SSE 5.1 G 6 48°F 1013.3 hPa (+0.0)47°F
TCMW1 - 9446482 - Tacoma Met, WA 14 mi57 min SSE 1.9 G 2.9
TCNW1 - 9446484 - Tacoma, WA 15 mi57 min 45°F 52°F1014 hPa
46120 19 mi33 min 50°F 1012.3 hPa43°F
46125 32 mi32 min 47°F 1012.4 hPa45°F
PTWW1 - 9444900 - Port Townsend, WA 48 mi57 min E 1.9 G 2.9 47°F 49°F1013.8 hPa

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA6 mi46 minN 010.00 miOvercast46°F43°F89%1013.1 hPa
Seattle, Seattle-Tacoma International Airport, WA6 mi46 minSSE 57.00 miMostly Cloudy49°F41°F74%1013.9 hPa
Renton Municipal Airport, WA10 mi46 minN 06.00 miFog/Mist44°F42°F93%1013.7 hPa
Tacoma, Tacoma Narrows Airport, WA17 mi46 minN 00.15 miFog43°F43°F100%1013.8 hPa
Bremerton, Bremerton National Airport, WA20 mi43 minN 010.00 miA Few Clouds42°F42°F100%1014.8 hPa
Tacoma / McChord Air Force Base, WA23 mi1.7 hrsN 01.13 miFog/Mist43°F42°F100%1013.7 hPa

Link to 5 minute data for KSEA

Wind History from SEA (wind in knots)
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Last 24hrN3W5CalmCalmS3W5CalmS4CalmW4CalmCalmE7N5NE8N5N7N7NW3N3S3E3SE4S5
1 day agoSW5SW6W3W3W3CalmN5N4N6N9N7N8N7N6N6N7N9N9N6N9N10N10N8NE4
2 days agoSW9S10SW9S11
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S9S10S7S8SW10S7SE7S5SW3SW6S3S3S6S6S7S5SE6S7S6SW5

Tide / Current Tables for Port Vashon, Washington
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Port Vashon
Click for Map
Fri -- 12:43 AM PST     7.78 feet High Tide
Fri -- 01:34 AM PST     Moonset
Fri -- 06:01 AM PST     4.41 feet Low Tide
Fri -- 07:42 AM PST     Sunrise
Fri -- 12:46 PM PST     11.47 feet High Tide
Fri -- 02:03 PM PST     Moonrise
Fri -- 04:19 PM PST     Sunset
Fri -- 07:45 PM PST     3.07 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.77.87.46.65.64.84.44.75.77.18.810.311.211.510.99.77.95.94.33.33.13.64.76.1

Tide / Current Tables for Skagit Bay, 1 mile N of Rocky Point, Washington Current
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Skagit Bay
Click for Map
Fri -- 12:18 AM PST     -0.00 knots Slack
Fri -- 01:34 AM PST     Moonset
Fri -- 05:38 AM PST     -0.57 knots Max Ebb
Fri -- 07:02 AM PST     0.00 knots Slack
Fri -- 07:42 AM PST     Sunrise
Fri -- 10:52 AM PST     0.52 knots Max Flood
Fri -- 12:35 PM PST     -0.00 knots Slack
Fri -- 02:03 PM PST     Moonrise
Fri -- 04:19 PM PST     Sunset
Fri -- 06:28 PM PST     -1.07 knots Max Ebb
Fri -- 08:54 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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0.1-0.1-0.2-0.4-0.5-0.6-0.5-00.20.40.50.50.3-0.1-0.4-0.6-0.8-1-1.1-1-0.500.20.3

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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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.