Thursday, March4, 2021
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Marine Weather and Tides
Manchester, WA

Version 3.4
NOTICE
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 6:41AMSunset 6:01PM Thursday March 4, 2021 7:45 PM PST (03:45 UTC) Moonrise 12:00AMMoonset 9:36AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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- 249 Pm Pst Thu Mar 4 2021
.small craft advisory in effect until 8 pm pst this evening...
Tonight..S wind 15 to 25 kt becoming variable to 10 kt after midnight. Wind waves 2 to 4 ft subsiding to 1 ft or less. Rain.
Fri..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain.
Fri night..S wind 10 to 20 kt rising to 20 to 30 kt after midnight. Wind waves 1 to 3 ft building to 3 to 5 ft. A chance of showers.
Sat..S wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 1 to 4 ft.
Sat night..S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Sun..S wind 5 to 15 kt. Wind waves 2 ft or less.
Sun night..S wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Mon..Light wind. Wind waves less than 1 ft.
Tue..Light wind. Wind waves less than 1 ft.
PZZ100 249 Pm Pst Thu Mar 4 2021
Synopsis for the northern and central washington coastal and inland waters..Usettled conditions return to the area waters today as the next system impacts the region. Expect elevated winds to persist across area waters through Saturday, with only breif lulls at times. Elevated seas will persist through most of the weekend. A brief break in conditions is expected Saturday night before elevated winds and seas return Sunday and continue into early next week.


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 042318 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 315 PM PST Thu Mar 4 2021

SYNOPSIS. A slow moving frontal system just off the coast will move slowly inland through Friday. An upper level trough will move through the region Friday night and Saturday morning. Another weather system arrives Sunday. An upper level trough will remain just offshore during the first half of next week.

SHORT TERM /TONIGHT THROUGH SUNDAY/. Rainy weather on tap as the front stalls near the coast tonight. The upper level trough just off the West Coast will send out a second frontal wave that will arrive Friday. The cold front will finally shift through the interior of Western Washington later on Friday and the precip will turn more showery. There's a Winter weather advisory for the Olympics with snow at the higher elevations and with a decent amount of rain in the lower elevations in southerly flow aloft. A flood watch is up for the Skokomish River in Mason county. After the front moves through, the air will destabilize for a chance of a couple of thunderstorms near the coast, and the upper trough will shift ashore on Saturday with showery weather over the weekend at times through Saturday and the chance for another frontal system Sunday. 19

LONG TERM /MONDAY THROUGH THURSDAY/. It looks like an upper trough will be a fixture for the weather along the West Coast into next week. No doubt there will be showery periods, but also some sunbreaks at times. The air mass will be a bit cool and the snow level relatively low. The 6-10 day outlook is showing that about the western third of the country is likely to be cool--but especially as you go south toward southern California. Precipitation ranges from favoring somewhat drier than normal conditions across Washington State, to wetter conditions favored for the southern half of California. So, it would seem that weather systems are likely to be splitting with most of the action going in to the south of WA. 19

AVIATION. Southwesterly flow will persist aloft as an upper level trough digs into the northeastern Pacific and becomes the dominant influence across the Pacific Northwest. Radar this afternoon shows that the rain ahead of the frontal system has already made its way into the Sound at this hour. Expect periods of rain to continue for area terminals as the frontal system slowly progresses through the region through Friday. Ceilings and visibilities at area TAF sites are mainly a mix of MVFR and VFR this afternoon and expect that trend to continue into Friday, with lower cigs and visibilities possible in areas of heavier rain. Gusty conditions persist as well this afternoon, mainly for terminals along the coast (KHQM) and across the Northern Interior (KPAE,KBLI). Elsewhere, southerly surface winds primarily at 8-13 kts expected, shifting more southeasterly tonight.

KSEA . Southerly winds this afternoon, generally between 7-13 knots. Rain to continue into Friday. Conditions currently VFR, becoming MVFR in any heavier showers. 14

MARINE. A vigorous cold front will slowly move through the area waters through Friday. Gales will continue for the coastal waters through Friday night, with brief lulls in the winds at times. Gusty winds will persist across portions of the Eastern Strait and Northern Interior waters as well through Friday as the frontal system makes its way through the region.

Meanwhile, offshore swells will continue to build this evening and remain elevated, primarily between 13-18 feet, into early Friday morning before briefly subsiding ahead of another swell train expected to arrive overnight into Saturday.

A number of marine headlines are posted for area waters today and into Friday evening, including offshore gale warnings and Small Craft Advisories for much of the inland waters. In addition, a gale watch is in effect for the Northern Inland waters and the Eastern Strait for Friday as the front moves through the area. Additional marine headlines are likely Sunday into early next week as the unsettled pattern continues. 14

HYDROLOGY. Stalling front will keep rain focused in the Olympics in southerly flow aloft (with snow higher elevations). With 2-3" of rain for the Skokomish basin, a flood watch is up for that river.

SEW WATCHES/WARNINGS/ADVISORIES. WA . Flood Watch through Friday afternoon for Hood Canal Area-Lower Chehalis Valley Area-Olympics.

Winter Weather Advisory until 10 AM PST Friday for Olympics.

PZ . Gale Warning until 10 PM PST Friday 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 4 PM PST Saturday for Grays Harbor Bar.

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

Small Craft Advisory until 6 AM PST Friday 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 Friday for West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory from 4 AM to 10 AM PST Friday for Central U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 1 AM PST Saturday for Admiralty Inlet.

Small Craft Advisory until 8 PM PST this evening 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 mi46 min SSE 12 G 14 47°F 1018.8 hPa (+0.7)44°F
TCMW1 - 9446482 - Tacoma Met, WA 21 mi46 min ESE 6 G 8.9
TCNW1 - 9446484 - Tacoma, WA 22 mi46 min 49°F 49°F1019.2 hPa (+1.2)
PTWW1 - 9444900 - Port Townsend, WA 39 mi46 min E 12 G 17 47°F 46°F1018.7 hPa (+1.3)

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 mi53 minESE 56.00 miLight Rain Fog/Mist48°F48°F100%1019 hPa
Bremerton, Bremerton National Airport, WA14 mi50 minNE 36.00 miLight Rain Fog/Mist44°F43°F96%1019.1 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi53 minESE 67.00 miLight Rain49°F43°F80%1019.6 hPa
Renton Municipal Airport, WA17 mi53 minN 05.00 miLight Rain Fog/Mist48°F45°F89%1019.5 hPa
Tacoma, Tacoma Narrows Airport, WA21 mi53 minN 010.00 miLight Rain45°F43°F93%1018.5 hPa

Link to 5 minute data for KBFI

Wind History from BFI (wind in knots)
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Last 24hrNW4W3CalmCalmCalmCalmSE4SE7SE6SE6SE5SE9SE11SE10SE7SE11SE10S7SE5S6CalmE5E6E5
1 day agoCalmCalmCalmCalmCalmCalmCalmSE5CalmSE5SE4SE4SE4CalmCalmCalmNW4W33W3W5W7CalmCalm
2 days agoCalmCalmCalmCalmS3CalmCalm4CalmCalmW3NE43Calm343Calm3E3NE3NE4NE5NE3

Tide / Current Tables for Clam Bay, Rich Passage, Washington
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Clam Bay
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Thu -- 02:05 AM PST     4.32 feet Low Tide
Thu -- 06:44 AM PST     Sunrise
Thu -- 08:04 AM PST     12.03 feet High Tide
Thu -- 09:35 AM PST     Moonset
Thu -- 03:02 PM PST     0.24 feet Low Tide
Thu -- 06:00 PM PST     Sunset
Thu -- 09:50 PM PST     9.96 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.34.94.34.86.289.911.41211.5107.85.22.70.90.20.82.34.46.68.59.79.99.5

Tide / Current Tables for Rich Passage, West end, Washington Current
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Rich Passage
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Thu -- 12:15 AM PST     -2.64 knots Max Ebb
Thu -- 02:25 AM PST     0.00 knots Slack
Thu -- 05:35 AM PST     2.29 knots Max Flood
Thu -- 06:44 AM PST     Sunrise
Thu -- 08:55 AM PST     -0.00 knots Slack
Thu -- 09:35 AM PST     Moonset
Thu -- 12:31 PM PST     -4.10 knots Max Ebb
Thu -- 03:17 PM PST     0.01 knots Slack
Thu -- 06:00 PM PST     Sunset
Thu -- 06:44 PM PST     3.04 knots Max Flood
Thu -- 10:46 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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-2.6-2.2-0.80.71.62.22.31.81-0.1-1.7-3.1-4-3.9-2.7-0.612.22.932.71.90.9-0.3

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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