Tuesday, December10, 2019
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Marine Weather and Tides
Meadowdale, 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 7:45AMSunset 4:18PM Tuesday December 10, 2019 8:02 PM PST (04:02 UTC) Moonrise 3:38PMMoonset 5:57AM Illumination 99% Phase: Full Moon; Moon at 14 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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PZZ134 Admiralty Inlet- 139 Pm Pst Tue Dec 10 2019
.small craft advisory in effect from 4 am Wednesday to 4 pm pst Thursday...
Tonight..SE wind 10 to 20 kt. Wind waves 1 to 3 ft. A chance of rain in the evening.
Wed..SE wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain likely in the afternoon.
Wed night..SE wind 20 to 30 kt becoming S 15 to 25 kt after midnight. Wind waves 3 to 5 ft. Rain.
Thu..SE wind 20 to 30 kt. Wind waves 3 to 5 ft.
Thu night..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..S wind to 10 kt. Wind waves 1 ft or less.
Fri night..Light wind becoming nw 5 to 15 kt after midnight. Wind waves 1 or 2 ft.
Sat..S wind to 10 kt. Wind waves 1 ft or less.
Sun..SE wind to 10 kt. Wind waves 1 ft or less.
PZZ100 139 Pm Pst Tue Dec 10 2019
Synopsis for the northern and central washington coastal and inland waters..A weak front moved ashore this afternoon. A stronger front will affect the region Wednesday and Wednesday night. A trough will move through the area on Thursday. Onshore flow will ease on Friday. A weather system will move ashore south of the area over the weekend.


7 Day Forecast for Marine Location Near Meadowdale, WA
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location: 47.85, -122.33     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 102303 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 303 PM PST Tue Dec 10 2019

SYNOPSIS. A weak weather system is moving across the region today bringing light rain and mountain snow showers. A brief break is expected Wednesday morning before the next, much wetter system moves into the area late Wednesday into early Friday. This system will bring heavy snow to the Cascades, particularly above 3500 to 4000 feet. Active weather will continue into next week.

SHORT TERM /TONIGHT THROUGH FRIDAY MORNING/. Light precipitation associated with a dissipating front continues to push east across western Washington this afternoon. Amounts have been relatively light, generally between a tenth and a third of an inch. While many areas will see an end to precipitation overnight, a few showers will continue, mainly in the coastal hills and mountain foothills.

Attention then turns to the next system that will impact the region Wednesday into early Friday. This system will bring much more precipitation to the region, along with breezy conditions. The headlines are as follows:

* Lowland Rainfall: Most lowland areas will see 0.50-1.25 inches of rainfall, with higher amounts of 1.5-2.00 inches along the coast.

* Mountain Precipitation: The mountains will generally see 1.5-2.5 inches of liquid equivalent precipitation, with locally higher amounts around 3.0-3.5 inches.

* Snow levels: Snow levels will generally begin between 4000-5000 feet, then lower to 2500-3500 feet late Thursday night into Friday morning. This means that Stevens Pass will likely experience significantly more snowfall than Snoqualmie Pass. * Snow Amounts: Accumulations generally 3-6 inches below 3500 feet (again, mainly early Friday), 1-2 feet between 3500-4500 feet, and 2-4 feet above 4500 feet. (A Winter Storm Watch was issued for the Cascades)

* Gusty Winds: Breezy southerly winds are expected with this system with gusts generally 20-30 MPH. Stronger winds with gusts 35-45 MPH will be possible across and near the coastal waters, through the Strait of Juan de Fuca, and in the north interior (waters near and north of Whidbey Island).

The heaviest and most widespread precipitation is likely to occur Wednesday evening/night, with precipitation becoming more showering in nature Thursday. In fact, there will exist a slight chance of thunderstorms along the coast and southwest WA Thursday afternoon and potentially again Friday as somewhat cooler air moves in aloft. -Wolcott-

LONG TERM /FRIDAY AFTERNOON THROUGH TUESDAY/. As we move into Friday afternoon through Saturday, precipitation chances will begin to diminish. That said, the pattern is messy and the door will be open for a weak system to brush the area over the weekend, so I wouldn't bet on a completely dry forecast.

Looking out further, there is good ensemble agreement in the continuation of an active pattern with the development of a mean trough just off the PNW coast. This will not only keep the door open for more energy to move through the area, but also sets up a more favorable pattern for wetter and warmer than average mid- December conditions. This matches well with the latest CPC 6-10 day and 8-14 day guidance. -Wolcott-

AVIATION. A front moved ashore this afternoon and will be east of the Cascades later this evening. The air is moist and stable with southwest flow aloft. Areas of low stratus are likely through tonight. The low clouds should break up for awhile ahead of the next front on Wednesday--and then conditions will drop again as rain moves ashore with the front Wednesday afternoon and evening.

KSEA . Cigs 1500-2500 feet tonight, and then there ought to be some improvement in conditions Wednesday morning--but then rain will develop Wed afternoon with cigs and vsby dropping into Wed evening with the next stronger front.

MARINE. A front over Western Washington this afternoon will move inland this evening. A stronger frontal system crosses the area Wednesday afternoon and evening and a trough will move through the area on Thursday. A gale warning is up for the coastal waters and the east entrance to the Strait of Juan de Fuca and northern inland waters have a good chance for gales Wednesday afternoon or evening as well. A trough will move through the area Thursday--tightening up the gradient a bit. On Friday onshore flow will ease. A weather system over the weekend should go in well south of the area.

HYDROLOGY. A wet storm system will impact the region Wednesday afternoon through Friday. Given precipitation amounts and snow levels in the 4000-5000 foot range - most rivers are not expected to approach flood stage. There is some concern that the Skokomish River in Mason County could approach flood stage. We will continue to monitor this situation. -Wolcott/Bower-

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Storm Watch from Wednesday afternoon through Friday morning for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties.

PZ . Small Craft Advisory until 3 AM PST Wednesday 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.

Gale Warning from 3 AM to 7 PM PST Wednesday 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.

Gale Watch from Wednesday afternoon through late Wednesday night for East Entrance U.S. Waters Strait Of Juan De Fuca- Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 4 PM PST Wednesday for West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 4 AM Wednesday to 4 PM PST Thursday for Admiralty Inlet.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46120 7 mi34 min SSW 3.9 46°F 1018 hPa44°F
WPOW1 - West Point, WA 14 mi62 min S 12 G 13 45°F 1018.9 hPa (-0.6)45°F
46125 16 mi30 min 45°F 1017.8 hPa43°F
PTWW1 - 9444900 - Port Townsend, WA 29 mi50 min E 7 G 8.9 46°F 48°F1019 hPa
TCMW1 - 9446482 - Tacoma Met, WA 40 mi50 min SE 2.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 41 mi50 min 42°F 52°F1019.8 hPa
SISW1 - Smith Island, WA 42 mi22 min ESE 8 G 9.9 44°F 1018.8 hPa42°F
PBFW1 - Padilla Bay Reserve, WA 43 mi92 min Calm 43°F 1019 hPa43°F

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Everett Snohomish County, WA5 mi69 minVar 310.00 miOvercast43°F41°F93%1019.2 hPa
Boeing Field - King County International Airport, WA22 mi69 minS 54.00 miFog/Mist44°F42°F93%1019.1 hPa
Arlington Municipal Airport, WA24 mi66 minN 08.00 miLight Rain43°F43°F100%1019.7 hPa

Link to 5 minute data for KPAE

Wind History from PAE (wind in knots)
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Last 24hrS43E4S4SE4SE65S7S5S8SE9S14SE10SE9S10SE9SE12SE12
G17
SE8S4E3Calm34
1 day agoCalmN3CalmCalmCalmCalmCalmCalmCalmE3NE3N4CalmE4CalmE4E3CalmCalmS3CalmCalmSE3S4
2 days agoN4N4N3NE3CalmN3N3N4N3CalmN3CalmN3CalmCalmNW3N3CalmCalmN5CalmN4CalmNW4

Tide / Current Tables for Meadowdale, Washington
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Meadowdale
Click for Map
Tue -- 04:27 AM PST     4.35 meters High Tide
Tue -- 05:57 AM PST     Moonset
Tue -- 07:47 AM PST     Sunrise
Tue -- 09:39 AM PST     3.20 meters Low Tide
Tue -- 02:48 PM PST     4.37 meters High Tide
Tue -- 03:37 PM PST     Moonrise
Tue -- 04:16 PM PST     Sunset
Tue -- 09:45 PM PST     0.93 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.333.74.14.34.34.13.83.53.33.23.43.744.34.44.23.732.31.61.10.91.2

Tide / Current Tables for President Point, 1.5 mile E of, Washington Current
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President Point
Click for MapFlood direction 203 true
Ebb direction 24 true

Tue -- 12:41 AM PST     0.45 knots Max Flood
Tue -- 04:35 AM PST     -0.00 knots Slack
Tue -- 05:57 AM PST     Moonset
Tue -- 06:49 AM PST     -0.35 knots Max Ebb
Tue -- 07:47 AM PST     Sunrise
Tue -- 10:48 AM PST     0.00 knots Slack
Tue -- 12:10 PM PST     0.16 knots Max Flood
Tue -- 02:40 PM PST     -0.00 knots Slack
Tue -- 03:38 PM PST     Moonrise
Tue -- 04:17 PM PST     Sunset
Tue -- 06:22 PM PST     -0.69 knots Max Ebb
Tue -- 10:49 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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0.40.40.40.30.1-0.1-0.3-0.4-0.3-0.2-0.100.20.10.1-0.1-0.3-0.5-0.7-0.7-0.6-0.4-0.20.1

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 (23,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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.