Wednesday, February24, 2021
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Marine Weather and Tides
White Center, 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 6:56AMSunset 5:48PM Wednesday February 24, 2021 6:46 PM PST (02:46 UTC) Moonrise 2:38PMMoonset 5:58AM Illumination 97% Phase: Waxing Gibbous; Moon at 13 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- 213 Pm Pst Wed Feb 24 2021
.small craft advisory in effect through Friday afternoon...
Tonight..S wind 5 to 15 kt rising to 20 to 30 kt after midnight. Wind waves 2 ft or less building to 3 to 5 ft after midnight. A chance of rain after midnight.
Thu..S wind 20 to 30 kt becoming sw 15 to 25 kt in the afternoon. Wind waves 3 to 5 ft. A chance of rain in the morning then a chance of showers and a slight chance of tstms in the afternoon.
Thu night..SW wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers likely in the evening then showers after midnight.
Fri..W wind 15 to 25 kt. Wind waves 2 to 4 ft.
Fri night..Variable wind 5 to 15 kt becoming to 10 kt after midnight. Wind waves 2 ft or less.
Sat..Light wind. Wind waves less than 1 ft.
Sat night..Light wind. Wind waves less than 1 ft.
Sun..S wind to 10 kt. Wind waves 1 ft or less.
Mon..SW wind to 10 kt. Wind waves 1 ft or less.
PZZ100 213 Pm Pst Wed Feb 24 2021
Synopsis for the northern and central washington coastal and inland waters..A vigorous frontal system will move through the area tonight and Thursday, producing hazardous winds and seas across offshore and inland waters through Friday. Conditions gradually improving this weekend.


7 Day Forecast for Marine Location Near White Center, WA
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location: 47.56, -122.35     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 250033 CCA AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 432 PM PST Wed Feb 24 2021

SYNOPSIS. The next frontal system will move into Western Washington tonight. Windy conditions will develop as the front moves ashore later tonight--mainly on the coast and around the San Juans and Whidbey Island. Periods of heavy snow will fall in the mountains Thursday and Friday. There will be a break in the weather Saturday and then weak weather systems could bring a chance of rain at times into next week.

SHORT TERM /TONIGHT THROUGH SATURDAY/. The next frontal system will reach Western Washington overnight, with a fropa around daybreak. There are gale warnings and wind advisories in the normally windier spots. A winter storm warning is up for the Cascades, and periods of heavy mountain snow will fall Thursday and Friday with strong westerly flow aloft and strong low level surface gradients as well. After the first system moves through the area Thursday morning, there will be a short period of modest upper height rises in the northwest flow aloft, and then a bit of an upper shortwave will move through the area Friday morning. At 700mb, temps will fall off to as cool as -16c over northwest WA Thursday afternoon--and when the PSCZ develops (perhaps as shown by the wrfgfs) maybe we will see a thunderstorm or two fire off Thursday afternoon somewhere near the King/Snohomish county line. Following the second shortwave, 700mb falls off to as cool as -18c--but the winds aloft turn more to the NW and there isn't really any PSCZ shown in the UW wrfgfs on Friday--just streaks of showers shooting off into the Cascades. The flow aloft is very good for orographically enhanced snowfall in the Cascades Thursday and Friday and the winter storm warning is a pretty easy forecast. The showers will taper off into Saturday which looks like a pretty nice day across Western Washington. 19

LONG TERM /SUNDAY THROUGH WEDNESDAY/. A period of pretty benign weather is likely with only the prospect for weak weather systems. There is a chance of rain in the forecast and a blend of the guidance gives a 20-50% chance of rain for the lowlands on any given day. The ECMWF and GFS are quite different--but the Canadian model looks quite reasonable and has a run of the mill cold front moving through Western Washington Monday morning followed by dribs and drabs of precip sneaking through a dirty ridge Tuesday and Wednesday. No doubt the models will flip flop around with the details of next week. 19

AVIATION. Clouds increasing tonight as our next Pacific frontal system arrives. The flow aloft is northerly, becoming west. Rain will reach the coast after 06z tonight then spread inland by 12z with MVFR cigs expected. Gusty S/SW winds expected through Thursday with this system. 33

KSEA . VFR through tonight. Rain, MVFR cigs and gusty S winds by 12z. 33

MARINE. Southerly flow will increase tonight ahead of our next incoming system. This system will likely bring gales overnight and into Thursday, with another strong onshore push Thursday night. Strong post-frontal onshore flow will continue into Friday with seas building to 20-25 feet. Winds and seas will ease/subside over the weekend. 33

HYDROLOGY. The Chehalis at Porter has been cresting today just a little under minor flood stage. A flood watch is in effect for the lower reaches of the river--happily, low tide at Aberdeen is around 0 feet around 530pm and high tide around midnight isn't particularly high at only 8.9 feet. We will take another look at the river later this evening. Flooding is not expected on any of the other rivers in the week ahead. 19

SEW WATCHES/WARNINGS/ADVISORIES. WA . Winter Storm Warning from 2 AM Thursday to 10 PM PST Friday for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and King Counties-Cascades of Whatcom and Skagit Counties.

Wind Advisory from 10 PM this evening to 4 PM PST Thursday for Admiralty Inlet Area-San Juan County-Western Skagit County- Western Whatcom County.

Flood Watch until 10 PM PST this evening for Central Coast-Lower Chehalis Valley Area-Olympics.

Wind Advisory from 10 PM this evening to 10 AM PST Thursday for Central Coast-North Coast.

High Wind Watch from Thursday afternoon through Friday morning for Admiralty Inlet Area.

Winter Weather Advisory from 10 PM this evening to 10 AM PST Friday for Olympics.

PZ . Small Craft Advisory from 9 AM Thursday to 4 PM PST Friday for Grays Harbor Bar.

Gale Warning until 10 AM PST Friday for Admiralty Inlet-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 until 4 PM PST Friday for East Entrance U.S. Waters Strait Of Juan De Fuca.

Gale Warning until 10 PM PST Thursday for Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 1 PM PST Thursday for Central U.S. Waters Strait Of Juan De Fuca-West Entrance U.S. Waters Strait Of Juan De Fuca.

Gale Warning from 1 PM Thursday to 4 PM PST Friday for Central U.S. Waters Strait Of Juan De Fuca-West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 4 PM PST Friday 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 mi47 min S 12 G 12 44°F 1033.2 hPa (-2.5)34°F
TCMW1 - 9446482 - Tacoma Met, WA 20 mi47 min N 1.9 G 2.9
TCNW1 - 9446484 - Tacoma, WA 21 mi47 min 44°F 48°F1034.1 hPa (-2.3)
PTWW1 - 9444900 - Port Townsend, WA 44 mi47 min E 8.9 G 11 44°F 46°F1033.4 hPa (-2.4)

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, WA3 mi54 minN 010.00 miFair44°F30°F58%1033.3 hPa
Renton Municipal Airport, WA8 mi54 minN 010.00 miFair45°F32°F61%1033.7 hPa
Seattle, Seattle-Tacoma International Airport, WA9 mi54 minSW 310.00 miMostly Cloudy42°F31°F65%1033.9 hPa
Tacoma, Tacoma Narrows Airport, WA23 mi54 minN 010.00 miFair41°F31°F67%1033.5 hPa
Bremerton, Bremerton National Airport, WA23 mi51 minS 410.00 miFair40°F31°F70%1034 hPa
Everett Snohomish County, WA24 mi54 minS 810.00 miFair42°F31°F65%1033.3 hPa

Link to 5 minute data for KBFI

Wind History from BFI (wind in knots)
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Last 24hrSE7SE3N3CalmN8CalmSE6SE6SE5SE5SE3SE4S3SE3CalmSW3W3SE4CalmCalmSW4S6S5Calm
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Tide / Current Tables for Lockheed Shipyard, Washington
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Lockheed Shipyard
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Wed -- 04:16 AM PST     11.41 feet High Tide
Wed -- 05:58 AM PST     Moonset
Wed -- 06:58 AM PST     Sunrise
Wed -- 09:28 AM PST     7.52 feet Low Tide
Wed -- 01:48 PM PST     9.70 feet High Tide
Wed -- 02:38 PM PST     Moonrise
Wed -- 05:47 PM PST     Sunset
Wed -- 09:10 PM PST     -0.66 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.27.69.510.811.411.210.49.28.17.67.68.18.89.59.79.286.34.11.90.1-0.6-0.31.2

Tide / Current Tables for Restoration Point, 0.6 miles ESE of, Washington Current
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Restoration Point
Click for Map
Wed -- 12:01 AM PST     0.67 knots Max Flood
Wed -- 04:06 AM PST     -0.00 knots Slack
Wed -- 05:58 AM PST     Moonset
Wed -- 06:58 AM PST     Sunrise
Wed -- 07:02 AM PST     -0.51 knots Max Ebb
Wed -- 10:54 AM PST     0.00 knots Slack
Wed -- 11:40 AM PST     0.11 knots Max Flood
Wed -- 01:38 PM PST     -0.00 knots Slack
Wed -- 02:38 PM PST     Moonrise
Wed -- 05:47 PM PST     Sunset
Wed -- 06:17 PM PST     -0.93 knots Max Ebb
Wed -- 10:07 PM PST     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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0.70.60.50.30-0.2-0.4-0.5-0.5-0.3-0.100.10.1-0.1-0.3-0.6-0.8-0.9-0.9-0.7-0.4-00.4

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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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.