Friday, June23, 2017 L-36.com


Marine Weather and Tides
Vashon, WA

Version 3.4
What's New / NOTES
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:11AMSunset 9:12PM Friday June 23, 2017 3:16 AM PDT (10:16 UTC) Moonrise 4:10AMMoonset 7:44PM Illumination 1% Phase: New Moon; Moon at 29 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- 259 Am Pdt Fri Jun 23 2017
Today..N wind 5 to 15 kt. Wind waves 2 ft or less.
Tonight through Sat night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Sun..N wind to 10 kt. Wind waves 1 ft or less.
Sun night..NW wind to 10 kt. Wind waves 1 ft or less.
Mon..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..S wind 5 to 15 kt becoming variable. Wind waves 2 ft or less.
PZZ100 259 Am Pdt Fri Jun 23 2017
Synopsis for the northern and central washington coastal and inland waters..A surface ridge over the northeast pacific along with a strong heat low over california and southern oregon will set up northerly gradients over the waters through Sat night. Weak gradients are expected Sunday. Onshore flow will develop on Sunday night, becoming strong on Monday.

7 Day Forecast for Marine Location Near Vashon, WA
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location: 47.4, -122.46     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 230429
afdsew
area forecast discussion
national weather service seattle wa
929 pm pdt Thu jun 22 2017

Synopsis An upper ridge will bring dry weather with a warming
trend through the weekend. The ridge will shift inland early next
week with onshore flow developing for a return to more seasonable
temperatures and some night and morning clouds.

Short term An upper ridge will build over the area through
Saturday. At the same time, low level onshore flow will be
northerly or even slightly offshore as a thermal trough pushes
north up the coast. This will result in sunny weather Friday and
Saturday with a warming trend. Highs will be in 70s to lower 80s
Friday and in the 80s to near 90 on Saturday.

The upper ridge axis will shift over eastern washington on Sunday
and weak onshore flow will begin to develop later in the day as a
thermal trough over the coast shifts inland. It will be another
very warm day for the interior - likely the warmest of the season
so far - with highs in the mid 80s to mid 90s. The coast should
start to see some cooling as onshore breezes kick in during the
afternoon although the amount of cooling is a bit uncertain for
now. Schneider

Long term Previous discussion... The long-wave upper ridge axis
shifts east of the area Sunday night and Monday. Many models are
rather robust in shifting pressure gradients onshore as the ridge
moves eastward Sunday evening, resulting in significant cooling on
Monday. However, there is the hint of a short wave ridge offshore
at the mid levels that would only result in a partial marine push
Sunday night, with a more significant one Monday evening. Our
current forecast reflects the latter scenario and results in
cooling for Monday, but still warm in the puget sound area and
near the cascades.

After a stronger marine push on Monday, a weak trough of low
pressure aloft combined with moderate onshore flow will result in
night and morning clouds and temperatures near to slightly below
average Tuesday onward. Albrecht

Aviation A strong upper ridge axis will slowly move from its
current position near 135w to east of 130w on Friday evening.

Moderate northwest flow aloft will weaken a bit on Friday. The air
mass will be dry and stable, with clear skies prevailing.

Ksea... Clear skies and north flow for the next 30 hours. Haner

Marine A northeast-southwest oriented surface ridge will
remain over the pacific through Saturday. Meanwhile, a strong heat
low over california and southern oregon will set up northerly
gradients over the waters. Winds over the coastal waters are
following a diurnal cycle, with northerlies peaking during the
late afternoon and evening, then falling off during the morning.

This cycle will repeat itself on Friday and Saturday. Gradients
will weaken on Sunday, then onshore flow will quickly increase on
Sunday night. Haner

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 3 am pdt 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.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 9 mi46 min NW 2.9 G 4.1
TCNW1 - 9446484 - Tacoma, WA 10 mi46 min 60°F 52°F1023.8 hPa
EBSW1 - 9447130 - Seattle, WA 15 mi46 min SSE 1 G 4.1 60°F 53°F1023.8 hPa
46121 16 mi61 min 9.7 59°F 1022.6 hPa49°F
WPOW1 - West Point, WA 18 mi76 min NNE 2.9 G 2.9 55°F 1024 hPa (+0.0)51°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA8 mi23 minNE 610.00 miFair60°F46°F62%1024.4 hPa
Tacoma, Tacoma Narrows Airport, WA11 mi23 minNE 510.00 miFair58°F44°F60%1023.6 hPa
Boeing Field - King County International Airport, WA12 mi23 minN 010.00 miFair60°F50°F70%1023.7 hPa
Renton Municipal Airport, WA14 mi23 minN 310.00 miFair60°F52°F75%1024.1 hPa
Bremerton, Bremerton National Airport, WA17 mi20 minNE 610.00 miFair52°F45°F77%1025.3 hPa
Tacoma / McChord Air Force Base, WA17 mi18 minN 010.00 miFair49°F46°F93%1024 hPa
Pierce County-Thun Field, WA22 mi21 minN 010.00 miFair48°F46°F94%1023.7 hPa
Fort Lewis / Gray U. S. Army Airfield, WA22 mi78 minSE 410.00 miFair50°F46°F87%1023.7 hPa

Wind History from SEA (wind in knots)
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Last 24hrCalmN6N5N6N7N8NE8NE7N11NE11
G17
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N9NW9NW9NW9N14N9N10N10N6NE8NE8N8NE6
1 day agoNE11NE8NE6NE6NE6NE7N54NW9N8NW11W10NW9W9N10NE10N13N9N12N6N9NE7NE6NE4
2 days agoS6S4SW6S4S5S7S8SW9SW11SW9SW11W6N12N12N12NE14NE15NE13NE14NE17NE14NE14NE12NE12

Tide / Current Tables for Burton, Quartermaster Hbr. (inside), Vashon I., Puget Sound, Washington
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Burton
Click for Map
Fri -- 03:47 AM PDT     12.62 feet High Tide
Fri -- 05:10 AM PDT     Moonrise
Fri -- 05:13 AM PDT     Sunrise
Fri -- 10:55 AM PDT     -3.29 feet Low Tide
Fri -- 06:13 PM PDT     12.43 feet High Tide
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:43 PM PDT     Moonset
Fri -- 09:10 PM PDT     Sunset
Fri -- 11:31 PM PDT     6.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.59.110.912.212.611.79.66.63.2-0.1-2.5-3.3-2.20.33.679.911.712.412.211.19.57.86.7

Tide / Current Tables for Skagit Bay, 1 mile S of Goat Island, Washington Current
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Skagit Bay
Click for Map
Fri -- 01:43 AM PDT     -0.00 knots Slack
Fri -- 05:06 AM PDT     -1.59 knots Max Ebb
Fri -- 05:10 AM PDT     Moonrise
Fri -- 05:14 AM PDT     Sunrise
Fri -- 08:09 AM PDT     0.07 knots Slack
Fri -- 11:09 AM PDT     2.13 knots Max Flood
Fri -- 03:18 PM PDT     -0.00 knots Slack
Fri -- 05:55 PM PDT     -1.44 knots Max Ebb
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:43 PM PDT     Moonset
Fri -- 09:08 PM PDT     0.06 knots Slack
Fri -- 09:10 PM PDT     Sunset
Fri -- 11:23 PM PDT     1.58 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.30.8-0.6-1.1-1.5-1.6-1.5-1.2-0.51.21.92.121.81.30.6-0.9-1.3-1.4-1.3-1-0.41.11.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (6,6,7,8)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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 numerious 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.