Thursday, June4, 2020
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Marine Weather and Tides
Herron Island, 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 5:16AMSunset 9:03PM Thursday June 4, 2020 7:15 PM PDT (02:15 UTC) Moonrise 7:03PMMoonset 3:42AM Illumination 99% Phase: Waxing Gibbous; Moon at 14 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- 248 Pm Pdt Thu Jun 4 2020
Tonight..N wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Fri..N wind 5 to 15 kt. Wind waves 2 ft or less.
Fri night..Variable wind to 10 kt becoming S after midnight. Wind waves 1 ft or less. A chance of showers.
Sat..S wind 5 to 15 kt becoming sw in the afternoon. Wind waves 2 ft or less.
Sat night..Variable wind to 10 kt in the evening becoming light. Wind waves 1 ft or less.
Sun..Light wind becoming sw to 10 kt in the afternoon. Wind waves 1 ft or less.
Sun night..Variable wind 5 to 15 kt becoming sw to 10 kt after midnight. Wind waves 2 ft or less.
Mon..SW wind to 10 kt. Wind waves 1 ft or less.
Tue..S wind to 10 kt. Wind waves 1 ft or less.
PZZ100 248 Pm Pdt Thu Jun 4 2020
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will persist through the end of the week. Additional systems traversing through the pacific northwest will bring stronger winds through the strait of juan de fuca and adjacent waters at times.


7 Day Forecast for Marine Location Near Herron Island, WA
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location: 47.2, -122.94     debug


Area Discussion for - Seattle, WA
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FXUS66 KSEW 042220 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 320 PM PDT Thu Jun 4 2020

SYNOPSIS. A few light showers were over and near the Olympics this afternoon. An upper trough will move over the area for another round of cool showery weather through the weekend. Monday could be a break between weather systems before a front arrives Tuesday.

SHORT TERM /TONIGHT THROUGH SUNDAY/. Not much remains of the weak front--just a few light showers around the Olympics this afternoon. An upper trough will increase the clouds and showers late Friday. Saturday and Sunday will be cool and showery with highs only in the upper 50s and lower 60s. In the low levels onshore flow will be light at first, but as the trough moves inland pressure gradients will increase Sunday. Snowfall in the mountains will just be a few inches on the high peaks, orographics are poor and the trough will be digging to the south. There will also be a chance of typical springtime isolated afternoon thunderstorms of the sort we see with cool upper troughs. 19

LONG TERM /MONDAY THROUGH THURSDAY/. After a relative break in shower activity on Monday, a frontal system should arrive for a rainy day on Tuesday. Wednesday and Thursday will probably see postfrontal showers as an upper trough nears the area for the latter part of the week. Overall it looks like June will continue to see an unsettled weather pattern and the CPC outlooks continue to lean toward cooler and wetter than average--although to be sure, this has not been that unusual and June is famous for cool damp weather in Western Washington. 19

AVIATION. Westerly flow will persist aloft tonight, before becoming more southwesterly overnight. Meanwhile, onshore flow will continue in the low levels. Satellite imagery indicates that mid level clouds have started to scatter this afternoon, while a few showers continue to bring some light precipitation to portions of the Olympic Peninsula. Precipitation should decrease by this evening and overall conditions for the terminals should remain VFR. Winds will remain light, however will transition to a more northerly direction during the evening hours. The next system will approach the region on Friday, bringing another round of lower ceilings and rain to the majority of the region by Friday afternoon. SB

KSEA . VFR cigs with some scattered mid level clouds. Variable and light winds will transition more northerly again by this evening, 3- 8 knots. SB

MARINE. Winds will remain relatively light across area waters through the remainder of the day. The next system will move through the region Friday afternoon into Friday night, bringing another round of Small Craft Advisory winds, mainly along the Strait of Juan de Fuca and portions of the adjacent inland waters. Onshore flow will persist into early next week with additional systems expected to move through the Pacific Northwest. Additional headlines will be needed at times as these systems traverse the region. A westerly swell 4-6 feet will briefly build to 5 to 7 feet tonight before subsiding again by mid-morning Friday. SB

HYDROLOGY. The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed until then.

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 12 mi30 min 3.9 64°F 1015.1 hPa49°F
TCMW1 - 9446482 - Tacoma Met, WA 28 mi45 min NNW 5.1 G 7
TCNW1 - 9446484 - Tacoma, WA 28 mi45 min 66°F 52°F1015.8 hPa
WPOW1 - West Point, WA 42 mi75 min NNE 5.1 G 6 57°F 1016.4 hPa (-2.3)54°F
46120 48 mi33 min N 5.8 59°F 1014.6 hPa47°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Shelton, Shelton Sanderson Field, WA11 mi22 minWNW 410.00 miA Few Clouds65°F48°F54%1014.5 hPa
Olympia, Olympia Airport, WA15 mi21 minNNE 610.00 miFair65°F46°F52%1015 hPa
Tacoma, Tacoma Narrows Airport, WA20 mi22 minNE 410.00 miFair63°F45°F52%1015.3 hPa
Fort Lewis / Gray U. S. Army Airfield, WA21 mi77 minNW 810.00 miFair68°F51°F55%1015.9 hPa
Bremerton, Bremerton National Airport, WA21 mi19 minNNE 510.00 miMostly Cloudy63°F48°F58%1015.8 hPa

Link to 5 minute data for KSHN

Wind History from SHN (wind in knots)
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Last 24hrW7W8W8W4CalmW4W4W5W4W4W3SW3Calm--NW3Calm3W5W7W9W6W5SW6W4
1 day agoW8W5SW4W5W6W3CalmW3CalmCalmCalmCalmCalmS3SE4SE4S736--E6SE3W11W9
2 days agoW6W7W7W7W5W4NW3CalmCalmW3CalmCalmSW33SW6SW9--------------SW8

Tide / Current Tables for Arcadia, Washington
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Arcadia
Click for Map
Thu -- 04:16 AM PDT     15.18 feet High Tide
Thu -- 04:41 AM PDT     Moonset
Thu -- 05:17 AM PDT     Sunrise
Thu -- 11:41 AM PDT     -2.29 feet Low Tide
Thu -- 06:35 PM PDT     14.40 feet High Tide
Thu -- 08:02 PM PDT     Moonrise
Thu -- 09:03 PM PDT     Sunset
Thu -- 11:55 PM PDT     6.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.58.611.313.815.114.813.210.57.13.40.1-1.9-2.2-0.72.46.29.912.714.214.313.211.18.87

Tide / Current Tables for Pickering Passage, South, Washington Current
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Pickering Passage
Click for Map
Thu -- 12:13 AM PDT     0.01 knots Slack
Thu -- 02:46 AM PDT     1.17 knots Max Flood
Thu -- 04:41 AM PDT     Moonset
Thu -- 04:45 AM PDT     -0.00 knots Slack
Thu -- 05:17 AM PDT     Sunrise
Thu -- 08:56 AM PDT     -2.23 knots Max Ebb
Thu -- 12:36 PM PDT     0.01 knots Slack
Thu -- 03:42 PM PDT     1.98 knots Max Flood
Thu -- 06:48 PM PDT     -0.01 knots Slack
Thu -- 08:03 PM PDT     Moonrise
Thu -- 09:03 PM PDT     Sunset
Thu -- 10:12 PM PDT     -1.31 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.20.511.10.7-0.2-1-1.6-2.1-2.2-2-1.5-0.70.41.31.921.50.7-0.1-0.8-1.1-1.3-1.2

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 (22,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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Disclaimer:
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.