Tuesday, September28, 2021
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Marine Weather and Tides
Manchester, WA

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:04AMSunset 6:56PM Tuesday September 28, 2021 9:32 AM PDT (16:32 UTC) Moonrise 10:05PMMoonset 2:05PM Illumination 52% Phase: Third Quarter Moon; Moon at 22 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- 826 Am Pdt Tue Sep 28 2021
.small craft advisory in effect until 3 pm pdt this afternoon...
Today..SW wind 15 to 25 kt becoming 5 to 15 kt in the afternoon. Wind waves 1 to 4 ft. Showers likely in the morning. A slight chance of tstms. A chance of showers in the afternoon.
Tonight..S wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers and a slight chance of tstms in the evening. A chance of rain after midnight.
Wed..S wind 10 to 20 kt. Wind waves 1 to 3 ft. Rain likely.
Wed night..S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Thu..S wind 15 to 25 kt becoming ne 5 to 15 kt in the afternoon. Wind waves 2 to 4 ft subsiding to 2 ft or less in the afternoon.
Thu night..Variable wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Fri..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
Sat..Light wind. Wind waves less than 1 ft.
PZZ100 826 Am Pdt Tue Sep 28 2021
Synopsis for the northern and central washington coastal and inland waters..Breezy southerly winds ahead of weak surface low pressure crossing the waters early today. A warm front lifts north on Wednesday followed by another stronger cold front late Wednesday into Thursday. High pressure then returns over the waters this weekend.


7 Day Forecast for Marine Location Near Manchester, WA
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location: 47.57, -122.53     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 281558 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 858 AM PDT Tue Sep 28 2021

UPDATE /0900 AM/. Some showers continue to linger across Western Washington this Tuesday morning. There remains a slight chance of some thunderstorms later today; with the highest chance being under the Puget Sound Convergence Zone and along the Cascades Crest.

The forecast from this morning remains on track. And the previous forecast discussion with updated marine and aviation sections are below.

Butwin

SYNOPSIS. An upper level trough will keep showers and isolated thunderstorms in the forecast today, along with lower snow levels in the mountains. Another system will bring additional rain and wind to the region Wednesday night and Thursday before drier conditions return for the end of the week.

SHORT TERM /TODAY THROUGH THURSDAY/. Active weather will continue through the short term forecast across western WA.

The air mass remains cool and unstable today for additional showers and isolated thunderstorms. A surface trough is currently passing through the region early this morning (with scattered showers) and we'll see onshore flow increase behind this trough this morning. With strengthening onshore flow we'll likely see a Puget Sound Convergence Zone forming around the King/Snohomish line. This area within the PSCZ may see heavy showers, small hail, and cloud-to-ground lightning. It will be cooler today with highs only around 60 degrees. Up in the mountains, the cooler air mass will also bring snow levels down to around 5000-6000 feet with a few inches of snow possible on the higher mountain peaks. Showers will wind down this evening as the flow flips offshore. A warm front will clip the region on Wednesday with rain mostly along the coast and in the Northwest Interior. It will likely be windy in these locations as well, especially toward Wednesday night as SE pressure gradients tighten (S/SE gusts to 35-45 mph). In the interior, expect light rain from Seattle southward by the afternoon (less than 0.10").

Wet and rainy weather will follow on Thursday, the end of September, as a baroclinic band slowly shifts S/SE through western WA. Additional rainfall amounts will range from 1-2" along the coast to 0.50-1" in the interior. This system will exit Thursday night with steady rain tapering off. 33

LONG TERM /FRIDAY THROUGH MONDAY/. The weather pattern from Friday through the weekend looks much quieter across the region with high pressure over the PacNW. The flow will turn offshore and we'll see temperatures gradually warming back up into the upper 60s to lower 70s. The ridge axis starts to shift east and farther inland on Monday with a slight chance of rain along the coast. Temps will remain mild across the interior. 33

AVIATION. West to northwest flow aloft expected today as upper trough axis moves onshore. Increased low level onshore flow will continue into this afternoon. The air mass is moist and somewhat unstable. A mix of MVFR and VFR ceilings will gradually lift this afternoon then gradually solidify into a VFR ceiling tonight as high level moisture increases ahead of another frontal system and level flow turns offshore once again.

KSEA . A mix of VFR and tempo MVFR ceilings around heavier showers through the morning. Ceilings lifting to VFR this afternoon. Enough instability exists for an isolated thunderstorm, but not enough to mention in TAF. Any convergence zone activity this afternoon and evening is expected to remain well north of the terminal. Breezy S/SW surface winds will ease somewhat this afternoon and evening. 27

MARINE. Breezy southerly winds continue through the inland waters of the Salish Sea this morning, with light flow through the Strait of Juan de Fuca. However, an onshore push to bring increasing west winds through the Strait this morning. Meanwhile, gusty winds associated with showers over the coastal waters continue through the day. Seas remain elevated over the coastal waters as a large west swell continues to move through, but will gradually ease later today and into Wednesday. All this to say that current advisories remain or will be in effect for all of the area waters as of this morning.

The next front will move through the coastal waters Wednesday and push inland through Thursday, with some gales likely to develop across the coastal waters and the northern inland waters and eastern Strait. As a result, a Gale Watch has been issued for this next system. Seas over the coastal waters may briefly drop below 10 ft for a short time, but will again become confused with a mix of the residual west swell and the large wind wave/fresh swell contribution ahead of the front. After the winds ease behind the front, expect another west swell to maintain seas near 10 ft through much of the week, before lowering more significantly over the weekend. Cullen

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Gale Watch from Wednesday morning through Wednesday evening 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-East Entrance U.S. Waters Strait Of Juan De Fuca-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 5 AM PDT 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-West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 1 AM PDT Wednesday for Grays Harbor Bar.

Small Craft Advisory until 11 PM PDT this evening for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 9 AM PDT Wednesday for Admiralty Inlet-Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 3 PM PDT this afternoon 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
WPOW1 - West Point, WA 8 mi33 min SSW 9.9 G 11 55°F 1014.4 hPa (+2.3)51°F
TCMW1 - 9446482 - Tacoma Met, WA 21 mi51 min S 6 G 9.9
TCNW1 - 9446484 - Tacoma, WA 22 mi51 min 56°F1015 hPa
PTWW1 - 9444900 - Port Townsend, WA 39 mi51 min S 4.1 G 5.1 52°F 52°F1014.4 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, WA12 mi40 minS 710.00 miOvercast55°F51°F87%1014.5 hPa
Bremerton, Bremerton National Airport, WA14 mi37 minSSW 710.00 miOvercast53°F52°F96%1014.9 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi40 minSSW 1010.00 miMostly Cloudy54°F50°F87%1014.9 hPa
Renton Municipal Airport, WA17 mi40 minS 610.00 miOvercast55°F49°F80%1014.8 hPa
Tacoma, Tacoma Narrows Airport, WA21 mi40 minSSW 10 G 2110.00 miMostly Cloudy51°F51°F100%1015 hPa

Link to 5 minute data for KBFI

Wind History from BFI (wind in knots)
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Tide / Current Tables for Clam Bay, Rich Passage, Washington
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Clam Bay
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Tue -- 04:30 AM PDT     1.17 feet Low Tide
Tue -- 07:05 AM PDT     Sunrise
Tue -- 12:23 PM PDT     9.83 feet High Tide
Tue -- 03:05 PM PDT     Moonset
Tue -- 05:32 PM PDT     7.34 feet Low Tide
Tue -- 06:54 PM PDT     Sunset
Tue -- 06:58 PM PDT     Last Quarter
Tue -- 09:50 PM PDT     8.55 feet High Tide
Tue -- 11:04 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.75.13.52.11.31.32.13.45.16.88.39.39.89.79.38.67.87.47.47.78.18.48.58.2

Tide / Current Tables for Rich Passage, West end, Washington Current
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Rich Passage
Click for Map
Tue -- 01:50 AM PDT     -2.80 knots Max Ebb
Tue -- 04:52 AM PDT     0.00 knots Slack
Tue -- 07:05 AM PDT     Sunrise
Tue -- 08:30 AM PDT     2.12 knots Max Flood
Tue -- 12:46 PM PDT     -0.00 knots Slack
Tue -- 03:05 PM PDT     Moonset
Tue -- 03:36 PM PDT     -1.42 knots Max Ebb
Tue -- 06:54 PM PDT     Sunset
Tue -- 06:58 PM PDT     Last Quarter
Tue -- 08:58 PM PDT     -0.10 knots Min Ebb
Tue -- 11:04 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-2.1-2.6-2.8-2.3-1.20.111.72.12.11.81.30.6-0.2-0.9-1.4-1.4-1.2-0.9-0.5-0.2-0.1-0.3-0.7

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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