Friday, May26, 2017 L-36.com


Marine Weather and Tides
Poulsbo, 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 5:18AMSunset 8:57PM Friday May 26, 2017 12:26 AM PDT (07:26 UTC) Moonrise 5:32AMMoonset 9:01PM Illumination 1% Phase: New Moon; Moon at 1 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- 1151 Pm Pdt Thu May 25 2017
Tonight..N wind 10 kt or less. Wind waves 1 ft or less.
Fri through Sun..N wind 10 kt or less. Wind waves 1 ft or less.
Sun night..N wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..Variable wind 10 kt or less. Wind waves 1 ft or less.
Tue..SW wind 10 kt or less. Wind waves 1 ft or less.
PZZ100 1151 Pm Pdt Thu May 25 2017
Synopsis for the northern and central washington coastal and inland waters..High pres centered over the ne pacific with lower pres inland will result in light onshore flow through Fri. The flow will become more northerly this weekend due to the offshore high weakening and redeveloping off the california coast.

7 Day Forecast for Marine Location Near Poulsbo, WA
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location: 47.73, -122.64     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 260409
afdsew
area forecast discussion
national weather service seattle wa
909 pm pdt Thu may 25 2017

Synopsis An upper ridge will bring dry and warmer weather
through memorial day. Onshore flow will develop Monday night or
Tuesday giving a cooling trend and a chance of showers by the
middle of next week.

Short term Radars and satellite imagery shows thunderstorms
over northern portions of eastern washington with a few showers
and isolated thunderstorms extending as far west as just east of
sumas in whatcom county, index in snohomish county, and mount
rainier national park. Cumulus clouds from the southern olympic
mountains southward into eastern grays harbor and western lewis
counties have not developed. This convection will dissipate early
this evening as the short wave trough initiating the development
moves off to the southeast and we lose our sunshine.

A 575+ dam 500-mb ridge along 138w and its 1029 mb high centered
near 49n 143w will slide slowly eastward tonight through Saturday.

By Saturday the upper ridge will be centered over western
washington with heights around 580 dam. The main surface high will
remain centered offshore, but even with the light onshore flow,
warm air aloft and plenty of sunshine will allow temperatures to
rise into the lower 80s from about seattle southward. Sunday looks
2-4 degrees warmer than Saturday across the area as weak thermal
troughing extends from the olympics southeastward to the columbia
river gorge area. When will the next marine push occur? The 18z
gfs and its ensembles hint at during the day Monday as the ridge
shifts east and an upper trough approaches from the west. The 12z
ecmwf and canadian solutions along with their ensemble means
suggest a day or so later. Monday, and Tuesday could remain quite
warm if the later solutions verify.

Forecasts look good for now. No evening update is needed. Albrecht

Long term From the previous long term discussion: an upper
ridge over the area will shift inland early next week. This will
put western washington in unstable southerly flow aloft on the
back side of the ridge. There could be some afternoon and evening
thunderstorms over the cascades Monday and Tuesday in this
pattern. There will also be a chance of showers for the lowlands
by Tuesday.

The other change early next week will be for cooler weather.

Cooling will probably be mainly confined to the coast on Monday
then the interior will cool several degrees on Tuesday. It should
be noted that the latest ECMWF is slower pushing the upper ridge
inland. If the ec is correct, Tuesday would be another warm day
for the interior and the onshore push would be on Wednesday.

An upper trough will settle over the area Wednesday and Thursday
for a good chance of showers. Highs should cool to near normal.

Schneider

Aviation High pres aloft will continue to build into the area
from the west overnight. Strong nly flow aloft will weaken. Contd
weak low level onshore flow. The air mass over the cascades will
cont stabilizing this evening. The threat of tstms has ended.

Meanwhile, anticipate areas of ifr CIGS vsbys to dvlp over the
coast overnight. Patchy lifr CIGS and vsbys (due to fog) are
possible from about kolm swd after 0900 utc.

Ksea...VFR. Winds will generally be light nly.

Marine High pressure centered over the northeast pacific with
lower pressure inland will result in light onshore flow (flow from
off the pacific) through Friday. The flow will become more
northerly this weekend due to the offshore high weakening and
redeveloping off the ca coast.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until midnight pdt tonight for central u.S.

Waters strait of juan de fuca-east entrance u.S. Waters
strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 12 mi27 min NNE 7 G 8 55°F 1012.5 hPa (+1.4)49°F
EBSW1 - 9447130 - Seattle, WA 18 mi39 min N 1 G 4.1 61°F 51°F1012.5 hPa
PTWW1 - 9444900 - Port Townsend, WA 27 mi39 min SW 2.9 G 5.1 57°F 50°F1012.8 hPa
46121 31 mi3 min 5.8 58°F 1011.6 hPa52°F
TCNW1 - 9446484 - Tacoma, WA 34 mi39 min 58°F 51°F1012.5 hPa
TCMW1 - 9446482 - Tacoma Met, WA 34 mi39 min NW 5.1 G 7
SISW1 - Smith Island, WA 42 mi27 min SSW 5.1 G 6 51°F 1012.4 hPa (+0.9)

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bremerton, Bremerton National Airport, WA19 mi31 minN 010.00 miFair49°F46°F90%1014.4 hPa
Everett Snohomish County, WA23 mi34 minNW 310.00 miFair54°F44°F69%1012.7 hPa
Seattle, Seattle Boeing Field, WA23 mi34 minNNW 310.00 miFair59°F51°F75%1012.4 hPa

Wind History from PWT (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmNW4SW5Calm--E366NE4E8NE66N6NE3CalmCalmCalm
1 day agoE5NE3CalmCalmSE3Calm4SE4S33Calm4SE6S4CalmNE4NE9N7NE6NE4CalmCalmCalmCalm
2 days agoCalmCalmCalmCalmCalmCalmN3NE5NE5E7E3SW7SW10
G15
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6S7NE12NE9NE9NE8NE7NE9E5

Tide / Current Tables for Poulsbo, Liberty Bay, Washington
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Poulsbo
Click for Map
Fri -- 04:59 AM PDT     12.16 feet High Tide
Fri -- 05:20 AM PDT     Sunrise
Fri -- 06:32 AM PDT     Moonrise
Fri -- 12:00 PM PDT     -3.07 feet Low Tide
Fri -- 07:15 PM PDT     12.73 feet High Tide
Fri -- 08:55 PM PDT     Sunset
Fri -- 10:01 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.76.68.210.111.612.211.59.66.83.50.3-2.2-3.1-2.303.26.69.711.812.712.411.19.27.3

Tide / Current Tables for West Point, Seattle, 0.3 miles W of, Washington Current
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West Point
Click for Map
Fri -- 12:05 AM PDT     0.00 knots Slack
Fri -- 02:19 AM PDT     0.54 knots Max Flood
Fri -- 04:51 AM PDT     -0.00 knots Slack
Fri -- 05:20 AM PDT     Sunrise
Fri -- 06:32 AM PDT     Moonrise
Fri -- 08:27 AM PDT     -1.28 knots Max Ebb
Fri -- 12:09 PM PDT     0.01 knots Slack
Fri -- 03:21 PM PDT     1.39 knots Max Flood
Fri -- 07:13 PM PDT     -0.00 knots Slack
Fri -- 08:55 PM PDT     Sunset
Fri -- 09:38 PM PDT     -0.77 knots Max Ebb
Fri -- 10:01 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-00.30.50.50.3-0.1-0.5-1-1.2-1.2-1-0.6-0.10.61.11.41.31.10.60.1-0.4-0.7-0.8-0.6

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 (3,6,7,8)
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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.