Sunday, September20, 2020
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Marine Weather and Tides
Shelton, WA

Version 3.4
NOTICE
8/26/2020 The 7 day forecast is taking about 5 seconds to load but it will eventually load. NOAA is still working on it.
8/18/2020 NOAA continues to have trouble. Wind guest will occasionally be left off graphs. I am working with NOAA to resolve the issue.
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 6:55AMSunset 7:14PM Sunday September 20, 2020 5:13 AM PDT (12:13 UTC) Moonrise 10:03AMMoonset 8:17PM Illumination 11% Phase: Waxing Crescent; Moon at 3 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- 308 Am Pdt Sun Sep 20 2020
Today..S wind to 10 kt in the morning becoming light. Wind waves 1 ft or less. Patchy fog in the morning. A slight chance of showers.
Tonight..N wind to 10 kt. Wind waves 1 ft or less. Patchy fog after midnight.
Mon..N wind to 10 kt. Wind waves 1 ft or less. Patchy fog in the morning. A slight chance of showers in the afternoon.
Mon night..NW wind to 10 kt becoming S after midnight. Wind waves 1 ft or less.
Tue..S wind to 10 kt. Wind waves 1 ft or less.
Tue night..S wind 5 to 15 kt. Wind waves 2 ft or less.
Wed..S wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 308 Am Pdt Sun Sep 20 2020
Synopsis for the northern and central washington coastal and inland waters..Light onshore flow will continue into Monday. A cold front will reach the area by the middle of the week with increased winds across the waters.


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 201112 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 412 AM PDT Sun Sep 20 2020

SYNOPSIS. Weak upper level ridge over the area through tonight. Convergence zone in metro area dissipating this morning. Weak upper level trough moving through Monday night. Weak warm front brushing the northwest portion Tuesday. Strong front arriving Wednesday with additional systems Thursday and Friday.

SHORT TERM /TODAY THROUGH TUESDAY/. Satellite imagery shows cloudy skies over most of the area this morning with some breaks in the cloud cover over the Northwest Interior. Most of the shower activity has come to an end outside of the convergence zone over the central Puget Sound. Temperatures at 3 am/10z were in the upper 40s to lower 60s.

Weak upper level ridge over the area today. Convergence zone will dissipate this morning. Light flow in the lower levels combined with the weak ridge to make it tough to clear out the low level moisture until later this afternoon. Highs in the 60s and lower 70s.

Little change in the pattern tonight with the weak upper level ridge remaining in place and light flow in the lower levels. Patchy fog developing after midnight. Lows in the 50s.

Upper level ridge shifting east Monday with a weak upper level trough approaching the area for a slight chance of showers in the afternoon. Highs once again will be in the 60s and lower 70s.

Weak trough dissipating as it moves inland Monday night keeping a slight chance of showers in the forecast. Patchy fog developing after midnight. Lows in the 50s.

Warm front offshore Tuesday moving by to the north later in the day brushing the northwest corner for a slight chance of rain in the afternoon. Highs will mostly be in the 60s.

LONG TERM /WEDNESDAY THROUGH SATURDAY/. Extended models showing good consistency run to run and with the individual solutions showing a very fall like front moving through Western Washington Wednesday. Parent low in the lower to mid 980 mb moving inland north of Haida Gwaii but windy conditions still possible along the coast and over the Northwest Interior. Significant rainfall amounts across the area with 2 to 3 inches along the coast and Olympics with up to an inch over the interior. Additional systems Thursday and Friday. Some disagreements start to creep into the models Saturday with a race between an upper level ridge building over Western Washington and a warm front reaching the area. Will just go with chance pops on Saturday. Felton

AVIATION. West to northwest flow aloft continues today as a weak upper ridge axis slides across the region. Plentiful low level moisture remains across Western Washington this morning with widespread IFR or low MVFR ceilings and the remnants of a convergence zone over Snohomish County. Light surface flow will become northerly this afternoon. Ceilings will gradually improve with VFR expected most areas after 21Z-23Z. Light surface winds and moisture from recent rain will lead to the redevelopment of areas of stratus again Monday morning. 27

KSEA . IFR or low MVFR with a stray shower in the vicinity expected through late morning. Ceilings will gradually lift this afternoon then scatter out this evening. Confidence is moderate that IFR in stratus could redevelop again Monday morning. Surface winds light S- SW shifting to N-NW near or after 00Z. 27

MARINE. Light onshore flow through the weekend with higher pressure near the coast and lower pressure east of the Cascades through Monday. A strong front will reach the waters by late Tuesday with widespread advisory level winds across the area. Gales will be possible at least for the coastal waters and northern inland waters. Advisory level or higher winds will remain possible across the waters from midweek and beyond as a series of system affect the area. 27

HYDROLOGY. Heavy rain forecasted for the Olympics Wednesday. Rivers will react quickly and will have to keep an eye on the flood prone Skokomish not only Wednesday but Thursday and Friday as well with additional systems. Felton

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . None.

www.weather.gov/seattle


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46121 19 mi40 min 1.9 58°F 1019.3 hPa57°F
TCMW1 - 9446482 - Tacoma Met, WA 35 mi55 min Calm G 1
TCNW1 - 9446484 - Tacoma, WA 36 mi55 min 61°F 56°F1019.7 hPa
WPOW1 - West Point, WA 47 mi73 min SSE 7 G 8 58°F 1019.2 hPa (+0.0)58°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 mi20 minSW 310.00 miOvercast57°F55°F96%1018.3 hPa
Olympia, Olympia Airport, WA18 mi19 minN 010.00 miOvercast59°F57°F93%1019.1 hPa

Link to 5 minute data for KSHN

Wind History from SHN (wind in knots)
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W12W9SW6W4W4W5CalmCalmCalmW4SW3
1 day agoCalmNW3S4SW5SW7SW9W8SW7SW7SW10SW8W8SW8SW11W8SW9W10SW9SW10W10SW10W11W9W11
2 days agoCalmCalm3NE3CalmCalmCalmS3SE5S6SE4S6SE6S4SW5N3W3NW4N4CalmCalmNE3W3N4

Tide / Current Tables for Shelton, Washington
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Shelton
Click for Map
Sun -- 03:33 AM PDT     0.27 feet Low Tide
Sun -- 06:57 AM PDT     Sunrise
Sun -- 09:14 AM PDT     13.91 feet High Tide
Sun -- 11:04 AM PDT     Moonrise
Sun -- 03:44 PM PDT     2.69 feet Low Tide
Sun -- 07:12 PM PDT     Sunset
Sun -- 09:01 PM PDT     14.79 feet High Tide
Sun -- 09:16 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.14.82.10.50.52.55.99.512.513.913.612.19.97.24.73.12.84.47.510.913.714.814.212.4

Tide / Current Tables for Hammersley Inlet, W of Skookum Pt, Washington Current
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Hammersley Inlet
Click for Map
Sun -- 12:13 AM PDT     -2.51 knots Max Ebb
Sun -- 03:43 AM PDT     0.01 knots Slack
Sun -- 06:55 AM PDT     2.36 knots Max Flood
Sun -- 06:57 AM PDT     Sunrise
Sun -- 09:40 AM PDT     -0.01 knots Slack
Sun -- 11:03 AM PDT     Moonrise
Sun -- 12:43 PM PDT     -2.19 knots Max Ebb
Sun -- 04:11 PM PDT     0.01 knots Slack
Sun -- 07:10 PM PDT     1.95 knots Max Flood
Sun -- 07:12 PM PDT     Sunset
Sun -- 09:16 PM PDT     Moonset
Sun -- 09:32 PM PDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.5-2.4-1.8-0.90.31.32.12.41.90.8-0.4-1.4-2.1-2.2-1.9-1.2-0.20.81.61.91.60.6-0.5-1.6

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
Ground Weather Radar Station Seattle/Tacoma, WA
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