Tuesday, April24, 2018 L-36.com


Marine Weather and Tides
Langley, WA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.

Sunrise 5:59AMSunset 8:15PM Tuesday April 24, 2018 5:42 PM PDT (00:42 UTC) Moonrise 1:12PMMoonset 2:54AM Illumination 72% Phase: Waxing Gibbous; Moon at 10 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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PZZ134 Admiralty Inlet- 241 Pm Pdt Tue Apr 24 2018
Tonight..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Wed and Wed night..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Thu..Light wind. Wind waves less than 1 ft.
Thu night..Variable wind to 10 kt. Wind waves 1 ft or less.
Fri..Light wind. Wind waves less than 1 ft.
Fri night..S wind to 10 kt. Wind waves 1 ft or less.
Sat..SE wind 5 to 15 kt. Wind waves 2 ft or less.
Sun..S wind to 10 kt. Wind waves 1 ft or less.
PZZ100 241 Pm Pdt Tue Apr 24 2018
Synopsis for the northern and central washington coastal and inland waters..High pressure inland with thermally induced low pressure along the oregon and washington coasts will persist until about Thursday morning. The thermal low pressure will move inland on Thursday with onshore flow developing Thursday night and Friday.

7 Day Forecast for Marine Location Near Langley, WA
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location: 48.04, -122.38     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 242130
afdsew
area forecast discussion
national weather service seattle wa
230 pm pdt Tue apr 24 2018

Synopsis Upper level ridging over washington will keep
conditions dry through Thursday. Surface high pressure over
southeastern british columbia will give low level offshore flow.

Warm conditions, with near-record to record high temperatures,
are expected through Thursday. An upper level low will approach
from the southwest late in the week bringing a return to
seasonably cool temperatures and an increasing chance of showers
Friday into the weekend.

Short term Upper level ridging centered over eastern washington
is showing signs of flattening somewhat this afternoon through
tonight as a shortwave trough now located inside of 135w moves
over the top of the ridge. The trough will do little more than
bring cirrus to our area and to decrease the easterly flow
overnight. We did manage to hit record high temperatures today.

Temperatures tonight will hold up in the 40s to around 50 across
the area.

Behind the upper level trough, surface high pressure is expected
to strengthen over north-central british columbia Wednesday
morning then move southeast toward southeastern british columbia
Wednesday night and Thursday. Expect north to northeast flow to
increase around the fraser river valley in western whatcom county
early Wednesday, then flow to become more northerly across the
interior of western washington during the day. The area northeast
of bellingham and the lowlands around the west and south slopes of
the olympics will likely see the warmest temperatures on Wednesday
with the benefit of downslope flow. Other locations in the
interior with northerlies coming off cool bodies of water will
likely be about the same as they are today, and perhaps a degree
or so higher. Record highs on Wednesday are low enough that many
will likely fall.

Offshore easterly flow will increase Wednesday night as the
surface high shifts in to southeastern bc. Then the upper level
ridge and surface high will begin shifting eastward away from the
area Thursday. The increased easterlies Wednesday night will
increase the strength of the thermal trough along the coast. The
thermal trough will then migrate eastward into the interior
during the afternoon hours and east of the cascades Thursday
evening. Temperatures on Thursday will be much cooler than
Wednesday along the coast and through the coastal gaps, and highs
will occur earlier in the day. The interior will see widespread
temperatures in the upper 70s to mid 80s, and more high
temperature records will likely fall.

Pressure gradients will rapidly become southwesterly onshore late
Thursday afternoon or Thursday evening, and this will usher in
cooler and moist marine air from the pacific. Clouds will spread
onto the coast during the afternoon hours on Thursday then spread
inland Thursday evening. By Friday morning, clouds will cover much
of the interior. While the onshore flow develops, the upper low
now seen well off the central california coast will move
northeastward into the far northern california offshore waters.

Showers will eventually form in the diffluent southeasterly flow
over oregon and will likely spread into far southwestern
washington later Thursday night then into southern portions of the
forecast area on Friday. Temperatures will be 15 degrees cooler
on Friday than on Thursday. Albrecht

Long term Global model solutions, including the us gfs, have
all come around to the ECMWF solution of the past few days. This
solution is generally slower in moving precipitation northward
through western washington than the earlier GFS solutions and has
lighter precipitation amounts Friday through the upcoming weekend.

Highs on Saturday and Sunday will struggle to hit 60 degrees and
there will be a good chance of showers under cloudy skies and a
cold-feeling southwest breeze.

Shower chances will diminish early next week as high pressure
builds into the area from the west. By the middle of next week,
temperatures are expected to return to normal or perhaps a few
degrees above, and conditions will dry out.

The extended forecast represents a blend of the various model
solutions. Albrecht

Aviation The air mass will remain dry and stable. There will
be some cirrus through tonight. Low level offshore flow will
persist and the thermally induced low pressure trough is centered
along the oregon coast.

Ksea... Some cirrus with an afternoon and evening northerly breeze.

Marine The thermally induced low pressure trough is centered
along the oregon coast and there wont be any substantial changes
til Thursday. The thermally induced low pressure will move inland on
Thursday with onshore flow developing Thursday night and persisting
into the weekend.

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46120 19 mi34 min NNW 16 59°F 1018.1 hPa45°F
PTWW1 - 9444900 - Port Townsend, WA 21 mi43 min WSW 7 G 11 65°F 49°F1020.2 hPa (-2.2)
WPOW1 - West Point, WA 26 mi43 min NNE 17 G 18 59°F 1018.7 hPa (-2.0)43°F
PBFW1 - Padilla Bay Reserve, WA 30 mi73 min N 15 58°F 1020 hPa47°F
EBSW1 - 9447130 - Seattle, WA 30 mi43 min NNW 8 G 12 72°F 48°F1018.3 hPa (-1.9)
SISW1 - Smith Island, WA 31 mi53 min W 6 G 7 58°F 1019.8 hPa (-2.2)40°F
46088 - New Dungeness, WA (Hein Bank) 46 mi53 min NNW 7.8 G 7.8 54°F 50°F1 ft1019.9 hPa (-2.0)43°F
FRDW1 - 9449880 - Friday Harbor, WA 48 mi67 min N 2.9 G 6 62°F 48°F1019.6 hPa
46118 48 mi48 min 55°F 1019.2 hPa44°F

Wind History for Port Townsend, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Everett Snohomish County, WA10 mi50 minNNW 810.00 miFair68°F42°F39%1019.4 hPa
Arlington Municipal Airport, WA14 mi47 minWNW 1210.00 miFair71°F39°F31%1019.4 hPa

Wind History from PAE (wind in knots)
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Last 24hrNW10NW7NW5N5CalmNW4N43N3N4CalmCalmN3N5NW4N3N3N4N5NW8NW9NW9NW9NW8
1 day agoNW7NW7NW4NW5NW6NW4NW5NW4N4N5N4CalmCalmN5NE3N3NW4N6N5NW6NW9NW11
G17
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2 days agoN8NW5NW4NW4N3NW7NW7NW6N5CalmNW3NW3Calm35N5NW4N8W10NW7NW9NW8NW8NW8

Tide / Current Tables for Sandy Point, Whidbey Island, Washington
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Sandy Point
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Tue -- 01:38 AM PDT     11.37 feet High Tide
Tue -- 03:53 AM PDT     Moonset
Tue -- 06:03 AM PDT     Sunrise
Tue -- 07:42 AM PDT     5.50 feet Low Tide
Tue -- 12:37 PM PDT     8.39 feet High Tide
Tue -- 02:11 PM PDT     Moonrise
Tue -- 07:13 PM PDT     0.92 feet Low Tide
Tue -- 08:12 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
10.311.211.310.79.47.86.45.75.55.96.77.68.38.37.86.653.21.70.91.22.44.36.5

Tide / Current Tables for Port Gamble Bay, Washington Current
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Port Gamble Bay
Click for Map
Tue -- 01:37 AM PDT     -0.00 knots Slack
Tue -- 03:54 AM PDT     Moonset
Tue -- 04:46 AM PDT     -0.69 knots Max Ebb
Tue -- 06:03 AM PDT     Sunrise
Tue -- 07:59 AM PDT     0.00 knots Slack
Tue -- 10:10 AM PDT     0.38 knots Max Flood
Tue -- 12:40 PM PDT     -0.00 knots Slack
Tue -- 02:12 PM PDT     Moonrise
Tue -- 04:30 PM PDT     -0.75 knots Max Ebb
Tue -- 07:12 PM PDT     0.00 knots Slack
Tue -- 08:13 PM PDT     Sunset
Tue -- 10:43 PM PDT     1.30 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.80.3-0.1-0.4-0.6-0.7-0.5-0.300.30.40.30.2-0.1-0.3-0.6-0.7-0.7-0.5-0.10.50.91.21.3

Weather Map and Satellite Images
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wmap_P
GOES 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.
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Wind Forecast for Seattle, WA (20,4,5,8)
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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 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.