Wednesday, November22, 2017 L-36.com


Marine Weather and Tides
Boulevard Park, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
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 7:24AMSunset 4:26PM Wednesday November 22, 2017 12:25 PM PST (20:25 UTC) Moonrise 10:49AMMoonset 8:02PM Illumination 17% Phase: Waxing Crescent; Moon at 4 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- 900 Am Pst Wed Nov 22 2017
Today..S wind 5 to 15 kt becoming 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. Rain likely.
Tonight..S wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft. Rain.
Thu..SW wind 15 to 25 kt. Wind waves 2 to 4 ft. Rain in the morning then showers likely in the afternoon.
Thu night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Fri..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Fri night..S wind 5 to 15 kt becoming variable after midnight. Wind waves 2 ft or less.
Sat..NE wind 10 to 20 kt becoming se. Wind waves 1 to 3 ft.
Sun..S wind 10 to 20 kt becoming se 5 to 15 kt. Wind waves 1 to 3 ft.
PZZ100 900 Am Pst Wed Nov 22 2017
Synopsis for the northern and central washington coastal and inland waters..Strong southerly flow will continue today and tonight, with low end gales on the coast and small craft advisory strength winds over the inland waters. Winds will continue to be at least moderate Thursday and Friday. Another system will arrive about Saturday night.

7 Day Forecast for Marine Location Near Boulevard Park, WA
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location: 47.54, -122.32     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 221731
afdsew
area forecast discussion
national weather service seattle wa
931 am pst Wed nov 22 2017

Synopsis A relative break between wet weather systems will
occur today, although scattered showers will still be around. The
next wet frontal system will bring more rain to the area tonight
through thanksgiving morning. Another relative break between
weather systems, but with a little light rain still around, will
occur Thursday afternoon through Friday. The next system to bring
widespread light rain will arrive Saturday afternoon. This active
weather pattern should continue into early next week.

Short term Radar shows scattered areas of rain moving NE across
w wa this morning. The area will remain under moist SW flow aloft,
but between weather systems today. The air mass remains warm with
high temperatures expected to be around 60 today, despite cloudy
skies. This could set a couple of high temperature records for
nov 22.

Yesterdays plume of sub-tropical moisture has weakened and shifted
s over oregon. The next system expected tonight and Thursday
morning will develop out of the weak front offshore along roughly
132w at 9 am. An upper level shortwave trough rounding the base of
the larger longwave trough along 140w, will move NE across the top
of the front tonight causing it to strengthen. Rain will reach the
coast this evening then spread inland overnight. The front should
be moving over the cascades by late Thursday morning, then E of
the cascades by later Thursday afternoon. Rain amounts should be
less than what fell Tuesday - about 2-4 inches in the olympics,
1.5-3.5 inches in the cascades and about a half to 1.5 inches in
the lowlands.

Scattered showers will be around Thursday afternoon and night as
the trailing upper level trough crosses the area. This system,
coming in from the w, will bring a cooler air mass, allowing snow
levels over the mountains to lower to around 4000 feet by Thursday
evening.

A slow moving front will move SE down vancouver island Thursday
evening then slow down to a crawl over southern vancouver island
Friday and Friday night. The front will be close enough to W wa to
bring a little light rain to the area, mainly the north part. Kam

Long term Another large longwave trough will form along roughly
140w late Friday. The SW flow aloft downstream, aimed at W wa,
will strengthen, which will allow a shortwave embedded in the sw
flow to bring more widespread light rain to the area Saturday
afternoon through Sunday morning. Cascade snow levels will pop up
again to the 5000 to 7000 ft range late Saturday before dropping
to around 4000 feet again behind the system Sunday.

Recent runs of the GFS and ECMWF had been in fair agreement with
the trailing trough late Sunday, but have diverged a little this
morning. Regardless, it will remain an active pattern with some
rain or showers. The models are still hanging on to the warm front
that reaches the area Monday night. Kam

Aviation Moist southwest flow aloft will continue today and
tonight. At the surface, southeasterly pressure gradients will
continue. Strong south to southwest winds 35 to 50 kt will continue
at times between 3000 and 5000 feet. Rain at times will continue
in the stable air mass.

MostlyVFR conditions today, though there are several cloud decks
around and MVFR ceilings are likely in rain. There are some breaks
in the clouds and under those there is patchy ifr fog. Conditions
will change little today. More clouds and rain is forecast tonight,
and this will probably bring widespread MVFR ceilings.

Ksea...VFR today, MVFR tonight. Light southerly winds today will
increase to 8-12 kt tonight. Chb

Marine A frontal system will approach from the northwest this
afternoon then move inland late tonight. Low end gale conditions are
likely on the coast today into tonight, with small craft advisory
strength winds over the inland waters.

Southerly gradients will continue to be moderate to strong on
Thursday, then they will ease on Friday. At least small craft
advisory conditions are likely on Friday.

Another system will arrive around Saturday night. Strong southerly
gradients are possible over the entire area Sunday. The preferred
solutions would result in gales over most waters with small craft
advisory conditions over puget sound and hood canal. Chb

Hydrology Many western washington rivers are above flood
stage this morning, and we may not be done yet - a few more are
could still rise above flood stage today. Several rivers have gages
registering moderate category flooding: the skokomish,
stillaguamish, and satsop rivers. And the main stem stillaguamish
has reached major flood category.

Warnings and watches change as needed. For the current list, please
check:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EBSW1 - 9447130 - Seattle, WA 4 mi38 min SE 4.1 G 8 63°F 51°F1014.8 hPa
WPOW1 - West Point, WA 10 mi26 min SSE 9.9 G 11 59°F 1014.4 hPa (-0.9)57°F
46120 16 mi30 min SW 9.7 61°F 1013.5 hPa61°F
TCNW1 - 9446484 - Tacoma, WA 19 mi38 min 66°F 52°F1015.1 hPa
TCMW1 - 9446482 - Tacoma Met, WA 19 mi38 min SSE 5.1 G 7
46121 28 mi27 min 7.8 60°F 1013.9 hPa57°F
PTWW1 - 9444900 - Port Townsend, WA 46 mi38 min E 23 G 27 59°F 50°F1012.8 hPa

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, WA1 mi33 minSSE 810.00 miOvercast62°F59°F90%1014.9 hPa
Renton Municipal Airport, WA6 mi33 minESE 410.00 miOvercast62°F59°F90%1015.2 hPa
Seattle, Seattle-Tacoma International Airport, WA7 mi33 minS 910.00 miMostly Cloudy64°F59°F84%1015.6 hPa
Tacoma, Tacoma Narrows Airport, WA23 mi33 minS 610.00 miMostly Cloudy63°F59°F87%1015.1 hPa
Bremerton, Bremerton National Airport, WA24 mi90 minSSW 1110.00 miLight Rain59°F57°F96%1016.7 hPa

Wind History from BFI (wind in knots)
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Last 24hrCalmCalm5SE7CalmS3SE5S8SE7SE4CalmS4SE4S6S6CalmCalmSE3CalmCalmCalmSE3SE4S8
1 day agoCalm3CalmNE5NE11NE8NE4CalmCalmCalmCalmCalmCalmCalmCalmCalmSW4CalmCalmN3N3CalmCalmCalm
2 days agoS5SW9
G17
W4S54S8SE9SE4SE5SE3SE7SE7SE3SE3CalmS3CalmCalmNW6W7Calm3W5N3

Tide / Current Tables for Duwamish Waterway, Washington
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Duwamish Waterway
Click for Map
Wed -- 12:47 AM PST     -0.44 feet Low Tide
Wed -- 07:24 AM PST     Sunrise
Wed -- 08:03 AM PST     11.43 feet High Tide
Wed -- 10:48 AM PST     Moonrise
Wed -- 01:46 PM PST     6.45 feet Low Tide
Wed -- 04:25 PM PST     Sunset
Wed -- 06:08 PM PST     9.04 feet High Tide
Wed -- 08:02 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.1-0.40.52.44.97.49.610.911.411.110.28.97.66.76.577.88.698.87.96.44.62.7

Tide / Current Tables for Restoration Point, 0.6 miles ESE of, Washington Current
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Restoration Point
Click for Map
Wed -- 01:34 AM PST     0.00 knots Slack
Wed -- 04:07 AM PST     0.71 knots Max Flood
Wed -- 07:25 AM PST     Sunrise
Wed -- 08:10 AM PST     -0.00 knots Slack
Wed -- 10:49 AM PST     Moonrise
Wed -- 11:12 AM PST     -0.56 knots Max Ebb
Wed -- 03:26 PM PST     0.00 knots Slack
Wed -- 03:54 PM PST     0.06 knots Max Flood
Wed -- 04:26 PM PST     Sunset
Wed -- 05:36 PM PST     -0.00 knots Slack
Wed -- 08:02 PM PST     Moonset
Wed -- 10:20 PM PST     -0.81 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.5-0.20.20.60.70.70.50.30-0.2-0.5-0.6-0.5-0.4-0.2-0.10.10-0.1-0.3-0.5-0.7-0.8-0.8

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 (15,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.