Wednesday, April1, 2020
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Marine Weather and Tides
Browns Point, 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 6:45AMSunset 7:41PM Wednesday April 1, 2020 1:32 PM PDT (20:32 UTC) Moonrise 10:48AMMoonset 2:14AM Illumination 63% Phase: Waxing Gibbous; Moon at 9 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- 1236 Pm Pdt Wed Apr 1 2020
Rest of today..N wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers and a slight chance of tstms.
Tonight..NW wind 5 to 15 kt becoming variable after midnight. Wind waves 2 ft or less.
Thu..S wind to 10 kt becoming sw in the afternoon. Wind waves 2 ft or less. A slight chance of rain in the morning then a chance of rain in the afternoon.
Thu night..NW wind 5 to 15 kt becoming sw after midnight. Wind waves 2 ft or less.
Fri..S wind to 10 kt becoming sw 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Fri night..NW wind 5 to 15 kt becoming variable after midnight. Wind waves 2 ft or less.
Sat..Light wind. Wind waves less than 1 ft.
Sun..Light wind. Wind waves less than 1 ft.
PZZ100 1236 Pm Pdt Wed Apr 1 2020
Synopsis for the northern and central washington coastal and inland waters..Low pressure over the region will be replaced by weak high pressure Thursday and Friday. Weather systems will likely move toward northern california late in the week.


7 Day Forecast for Marine Location Near Browns Point CDP, WA
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location: 47.3, -122.45     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 011609 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 910 AM PDT Wed Apr 1 2020

SYNOPSIS. Lowland rain showers and mountain snow showers will continue off and on for the next several days as a series of weak systems pass through the area. Temperatures will remain below normal throughout the period.

SHORT TERM /TODAY THROUGH FRIDAY/. Most shower activity this morning finds itself concentrated either along the southwestern coast of the CWA or in a narrow band of precip stretching from the southern tip of Vancouver Island into Whatcom county. Reports on social media show this band might be producing a bit of snow . and with temps in the area ranging between 35 to 37 degrees . it is certainly possible With said temperatures though. along with incremental heating through the day . cannot imagine any flakes hanging around for very long. The remainder of the area has temps generally in the upper 30s to low 40s.

The back end of an upper level trough will push through W WA today which . coupled with some instability from the afternoon sun . will allow for some scattered showers this afternoon and evening with a likely emphasis on areas south of the Seattle metro area. Given said instability . cannot rule out a rumble of thunder or brief periods of small hail within any showers that develop. A brief break in the action is expected late tonight and into early Thursday morning before a weak shortwave dips down into the area which may also trigger another round of afternoon/evening showers although given the weak nature of the system . coverage is expected to be less. The short term wraps up sounding like a broken record as things dry out for Thursday night only for another upper trough to swing in for Friday. QPF values for this system look akin to those of the weak Thursday system . and as such coverage should not be terribly widespread and may end up being mostly terrain driven . with a focus more on the mountains and higher elevations. Thanks to all of these troughs . temperatures throughout the short term forecast period will remain below normal.

Inherited forecast handles this pretty well and not expecting any morning updates at this time. 18

LONG TERM /SATURDAY THROUGH TUESDAY/. From Previous Discussion . Saturday continues to appear generally dry as weak shortwave ridging slides across the area ahead of an upper trough digging southward over the offshore waters. The deterministic models remain at odds with the eventual path of the upper low and how much wrap around moisture from it reaches Western Washington. The general chance PoPs in the current forecast look good given the uncertainty at this time. The differences between models continue into early next week, but ensemble means keep anomalous troughing over the west coast which supports at least a chance of precip and continued unseasonably cool temperatures. 27

AVIATION. Morning clouds will give way to partial clearing and cumulus buildups in a moist unstable air mass. With northerly flow developing today some dry air will work down across the region. Areas of low clouds should develop tonight and Thursday ought to see at least partly cloudy skies as gradients turn more onshore again.

KSEA . Morning clouds and a few showers will give way to higher bkn cigs and then later today we ought to scatter out for awhile. A northerly breeze should pick up this afternoon.

MARINE. A 1016mb low just off Astoria will move ashore and fill. There is high pressure over British Columbia. The northeast gradient seems to be locked up over B.C. and so far there isn't a breezy northeast wind coming down into Western Washington--but I will leave the forecast as it is and we will see if anything develops today. By Thursday morning there will be remnant weak low pressure extending from Vancouver Island southeast through the WA and that will be gradually giving way to higher pressure building in from the southwest. The net result will be that a tendency for northeast winds today (which may not be as strong as forecast) will switch to southwesterly onshore flow later Thursday and Friday. Pressure gradients Saturday look pretty light as a weather system misses the area well to the south.

HYDROLOGY. An unsettled pattern will continue through the week ahead, but the progressive nature of the pattern and precipitation amounts are not expected to lead to flooding concerns.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None.

PZ . Small Craft Advisory until 10 PM PDT this evening for Coastal Waters From Cape Flattery To James Island Out 10 Nm-Coastal Waters From James Island To Point Grenville Out 10 Nm- Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm.

Small Craft Advisory until 5 PM PDT this afternoon for Northern Inland Waters Including The San Juan Islands.

Small Craft Advisory until 2 PM PDT this afternoon for Central U.S. Waters Strait Of Juan De Fuca-West Entrance U.S. Waters Strait Of Juan De Fuca.

Small Craft Advisory until 10 PM PDT 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
TCMW1 - 9446482 - Tacoma Met, WA 2 mi45 min NW 7 G 8
TCNW1 - 9446484 - Tacoma, WA 3 mi45 min 47°F 48°F1019 hPa
46121 15 mi32 min Calm 48°F 1018.9 hPa38°F
WPOW1 - West Point, WA 25 mi33 min N 6 G 7 44°F 1019 hPa (+0.0)38°F
46120 32 mi29 min N 3.9 43°F 1018.1 hPa36°F
46125 43 mi26 min 43°F 1018.5 hPa36°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tacoma, Tacoma Narrows Airport, WA7 mi40 minW 410.00 miMostly Cloudy45°F36°F71%1018.7 hPa
Tacoma / McChord Air Force Base, WA10 mi95 minN 310.00 miMostly Cloudy45°F35°F69%1018.9 hPa
Seattle, Seattle-Tacoma International Airport, WA12 mi40 minno data10.00 miMostly Cloudy48°F34°F58%1019 hPa
Fort Lewis / Gray U. S. Army Airfield, WA16 mi95 minN 010.00 miA Few Clouds45°F42°F92%1018.8 hPa
Pierce County-Thun Field, WA16 mi38 minN 010.00 miMostly Cloudy48°F33°F58%1017.9 hPa
Boeing Field - King County International Airport, WA18 mi40 minVar 410.00 miMostly Cloudy47°F35°F63%1018.6 hPa
Renton Municipal Airport, WA18 mi40 minNW 810.00 miMostly Cloudy43°F37°F80%1019 hPa
Bremerton, Bremerton National Airport, WA21 mi37 minVar 410.00 miMostly Cloudy45°F36°F71%1019 hPa

Link to 5 minute data for KTIW

Wind History from TIW (wind in knots)
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SW6SW8S5S7S8S6S7S5S4S4S4CalmCalmSW4W3W3CalmCalmW4
1 day agoSW11
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S7S9SW6SW7SW4SW10SW5SW6S8S8S7S6SW54SW7W6SW9SW9
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Tide / Current Tables for Tacoma, Commencement Bay, Sitcum Waterway, Puget Sound, Washington (sub)
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for The Narrows, North end E side, Washington Current
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The Narrows
Click for Map
Wed -- 12:53 AM PDT     -0.00 knots Slack
Wed -- 03:14 AM PDT     Moonset
Wed -- 03:21 AM PDT     First Quarter
Wed -- 03:37 AM PDT     -1.74 knots Max Ebb
Wed -- 06:47 AM PDT     Sunrise
Wed -- 06:54 AM PDT     0.00 knots Slack
Wed -- 09:06 AM PDT     1.21 knots Max Flood
Wed -- 11:01 AM PDT     -0.00 knots Slack
Wed -- 11:49 AM PDT     Moonrise
Wed -- 03:10 PM PDT     -3.77 knots Max Ebb
Wed -- 06:38 PM PDT     0.00 knots Slack
Wed -- 07:40 PM PDT     Sunset
Wed -- 10:01 PM PDT     3.32 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.9-0.1-1.1-1.7-1.7-1.3-0.80.10.81.20.90-1.3-2.5-3.3-3.8-3.4-2.4-10.41.72.93.33

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 (16,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.