Thursday, January23, 2020
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Marine Weather and Tides
Shelton, WA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 7:45AMSunset 5:00PM Wednesday January 22, 2020 11:26 PM PST (07:26 UTC) Moonrise 6:19AMMoonset 2:56PM Illumination 4% Phase: Waning Crescent; Moon at 28 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 Pm Pst Wed Jan 22 2020
.small craft advisory in effect through Thursday afternoon...
Tonight..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain likely.
Thu..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain likely in the morning then rain in the afternoon.
Thu night..S wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft. Rain.
Fri..S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Fri night..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Sat night..S wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Sun..S wind to 10 kt. Wind waves 1 ft or less.
Mon..S wind to 10 kt. Wind waves 1 ft or less.
PZZ100 844 Pm Pst Wed Jan 22 2020
Synopsis for the northern and central washington coastal and inland waters..A warm front will lift north across the area tonight. A trailing cold front will push inland Thursday and Thursday night. Active weather will continue into early next week as additional weather systems move across the area.


7 Day Forecast for Marine Location Near Shelton, WA
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location: 47.2, -123.08     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 230448 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 848 PM PST Wed Jan 22 2020

SYNOPSIS. Active weather will continue over the next week as a series of weather systems move across the area. Rain tonight and Thursday will be enough for a few rivers flowing off the Cascades and Olympics to reach flood stage. Periods of rain will then continue for the remainder of the week and much of the weekend, preventing rivers from experiencing much recovery.

SHORT TERM /TONIGHT THROUGH SATURDAY/. A warm front will stall over the area tonight with rain at times. Rain has tapered a bit over the lowlands this evening but it should pick up again later tonight. There has also been a fairly pronounced rain shadow northeast of the Olympics in west to southwest flow aloft. Snow levels should rise to 6000-7000 feet tonight but easterly flow will keep snow down to pass levels until late this evening. The cold air in the passes should mix later tonight with snow turning to rain. It will also be breezy to locally windy coast and north interior tonight but nothing too impactful.

The atmospheric river over the area will slowly shift inland as a cold front Thursday and Thursday night. The prolonged period of rain and high snow levels will result in river flooding concerns. Please the the hydrology section below for more details.

Some showers will linger over the area on Friday in the wake of the cold front with snow levels lowering to 4000-4500 feet. Another in a series of weather systems will bring more rain later Friday night and Saturday. Schneider

LONG TERM /SUNDAY THROUGH WEDNESDAY/. Previous discussion . Progressive pattern across the Pacific essentially paves the way for a parade of storms to pass across western Washington thru the extended. The first in this series of storm systems will be on Sunday. Given current model runs, this system looks rather interesting (tho it is still far out). A negative tilt shortwave trough approaches the area from the south, with a rather robust sfc low associated with it. Will need to monitor this system for another round of rain and perhaps strong winds. After the passage of this system another shortwave is on tap for Monday, with yet another round of rain. There may be a brief break between systems Tuesday but wet conditions look to return quickly on Wednesday.

Kovacik

AVIATION. The flow aloft will be west tonight with a warm front stalling over the area. The front will start to shift inland as a cold front on Thursday with the flow aloft becoming southwest. The air mass is moist and stable. Low clouds will be widespread with occasional reduced visibilities in rain.

KSEA . Low clouds tonight and Thursday. Visibilities should be reduced at times in rain later tonight and Thursday. Southerly wind 5-10 knots. Schneider

MARINE. A warm front will stall over the area tonight then move inland as a cold front Thursday and Thursday night. Gales are likely for the Coastal Waters late tonight and Thursday morning with small craft advisory strength winds all other waters. Winds will ease a bit later Thursday. The pattern will remain active into early next week with additional weather systems crossing the area every day or two.

In addition, highs astronomical tides and somewhat low atmospheric pressure could lead to a few spots of minor tidal overflow the next few mornings. Schneider

HYDROLOGY. A period of warming, rising snow levels, and heavy rain in the mountains will force sharp rises on the rivers flowing off the Olympics and Cascades in western Washington and increase the risk for landslides across the area. Snow levels will rise to around 5,000 to 7,000 feet with 4 to 6 inches of rain in the mountains today through Saturday. Minor flooding is possible on several rivers as a result. The Skokomish River, which may reach moderate flood stage tonight or Thursday, will likely remain in flood into the weekend. The remainder of rivers may be flowing high through the rest of the weekend. Another period of warm and wet weather may renew the river flooding threat early next week.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Flood Watch from Thursday morning through Friday afternoon for Bellevue and Vicinity-Cascades of Pierce and Lewis Counties- Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties-East Puget Sound Lowlands-Everett and Vicinity-Seattle and Vicinity-Southwest Interior-Tacoma Area-Western Skagit County-Western Whatcom County.

Winter Weather Advisory until 10 PM PST this evening for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties.

Flood Watch from 10 PM PST this evening through late Thursday night for Admiralty Inlet Area-Central Coast-Eastern Strait of Juan de Fuca-North Coast-Western Strait of Juan De Fuca.

Flood Watch through late Thursday night for Hood Canal Area- Lower Chehalis Valley Area-Olympics.

Coastal Flood Advisory from 2 AM to 8 AM PST Thursday for Admiralty Inlet Area.

PZ . Small Craft Advisory until 4 PM PST Thursday for Admiralty Inlet- East Entrance U.S. Waters Strait Of Juan De Fuca-Grays Harbor Bar-Northern Inland Waters Including The San Juan Islands.

Gale Warning until noon PST Thursday 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.

Small Craft Advisory until 10 AM PST Thursday for West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until midnight PST tonight for Central U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 4 PM PST Thursday for Puget Sound and Hood Canal.



www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 35 mi68 min E 2.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 36 mi56 min 49°F1015.8 hPa
WPOW1 - West Point, WA 47 mi86 min SSE 12 G 14 49°F 1014.8 hPa (-0.3)47°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Shelton, Shelton Sanderson Field, WA4 mi33 minN 06.00 miLight Rain Fog/Mist44°F42°F93%1014.5 hPa
Olympia, Olympia Airport, WA18 mi32 minSSW 1110.00 miLight Rain49°F46°F90%1015.4 hPa

Link to 5 minute data for KSHN

Wind History from SHN (wind in knots)
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Last 24hrSW11SW11S7SE5SE5SE5CalmSE4SE4E4E43E6NE4N5N6N7N3CalmCalmCalmCalmCalmCalm
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Tide / Current Tables for Shelton, Washington
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Shelton
Click for Map
Thu -- 06:34 AM PST     15.31 feet High Tide
Thu -- 07:13 AM PST     Moonrise
Thu -- 07:48 AM PST     Sunrise
Thu -- 12:18 PM PST     6.99 feet Low Tide
Thu -- 03:52 PM PST     Moonset
Thu -- 04:17 PM PST     13.51 feet High Tide
Thu -- 05:00 PM PST     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1.30.43.57.310.913.615.115.21411.99.67.977.49.411.913.413.312.310.47.84.81.9-0.4

Tide / Current Tables for Hammersley Inlet, W of Skookum Pt, Washington Current
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Hammersley Inlet
Click for Map
Thu -- 03:09 AM PST     2.23 knots Max Flood
Thu -- 06:45 AM PST     -0.01 knots Slack
Thu -- 07:12 AM PST     Moonrise
Thu -- 07:47 AM PST     Sunrise
Thu -- 09:47 AM PST     -1.32 knots Max Ebb
Thu -- 12:22 PM PST     0.00 knots Slack
Thu -- 02:49 PM PST     0.95 knots Max Flood
Thu -- 03:52 PM PST     Moonset
Thu -- 04:49 PM PST     -0.01 knots Slack
Thu -- 05:00 PM PST     Sunset
Thu -- 08:58 PM PST     -2.42 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.41.322.22.11.50.6-0.2-0.8-1.2-1.3-1-0.30.40.80.90.6-0.1-1-1.8-2.3-2.4-2.2-1.6

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 (2,6,7,8)
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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 numerous 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.