Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Friday Harbor, 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 6:14AMSunset 8:18PM Sunday August 20, 2017 12:52 AM PDT (07:52 UTC) Moonrise 3:51AMMoonset 6:49PM Illumination 4% Phase: Waning Crescent; Moon at 28 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 900 Pm Pdt Sat Aug 19 2017
Tonight..SW wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Sun..SW wind to 10 kt. Wind waves 1 ft or less.
Sun night..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..W wind to 10 kt becoming nw in the afternoon. Wind waves 1 ft or less.
Mon night..NW wind 5 to 15 kt becoming sw after midnight. Wind waves 2 ft or less.
Tue..Light wind becoming W to 10 kt in the afternoon. Wind waves 1 ft or less.
Tue night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Wed..S wind 5 to 15 kt becoming sw 15 to 25 kt. Wind waves 2 ft or less building to 2 to 4 ft.
Thu..SW wind 5 to 15 kt becoming 10 to 20 kt. Wind waves 1 to 3 ft.
PZZ100 900 Pm Pdt Sat Aug 19 2017
Synopsis for the northern and central washington coastal and inland waters..A typical august pattern will prevail through the middle of next week. Expect onshore flow of varying strength to persist due to high pres offshore and lower pres east of the cascades. A weak system will approach the coastal waters on Wednesday and move inland Thursday.

7 Day Forecast for Marine Location Near Friday Harbor, WA
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location: 48.62, -123.15     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 200410
afdsew
area forecast discussion
national weather service seattle wa
910 pm pdt Sat aug 19 2017

Synopsis Light onshore flow will give some areas of low clouds in
the late night and morning hours through Monday. The areas of night
and morning low clouds and fog should mainly on the coast and near
the water. High pressure will shift over the region Monday and
Tuesday for warmer temperatures. A trough will bring cooler weather
and a chance of showers late Wednesday and Thursday. High pressure
will build over the area again toward the end of the week.

Short term A few areas of low clouds should form along the
coast late tonight and there might be a few patches inland. Light
northwesterly onshore flow will give another nice day on Sunday
with highs into the 70s across much of the interior. Upper ridging
amplifies just offshore Sunday night then progresses eastward across
the region Monday and into western montana Tuesday afternoon. This
ridge will give sunny weather except for shallow morning low clouds
and fog--but mainly for the coast and over the waters. Around puget
sound and up through the inland waters fog or low clouds should burn
off over land pretty quickly but could linger through mid morning
over the water.

Long term Onshore flow later Tuesday will usher in a marine
push Tuesday afternoon and evening that will result in increased
clouds. The push will be followed by a frontal system that will
move across the area Wednesday night and a rather deep upper level
trough Thursday through Thursday night. Long term models appear to
be converging on a solution (between the GFS and ecmwf) where
there will be a threat of showers Wednesday afternoon through
Thursday evening. Thursday high temperatures will likely not reach
the 70 degree mark across most of the area with the clouds, some
showers, and the cooler air mass. Snow levels are expected to fall
to 6000 to 7000 feet in the north cascades Thursday or Thursday
night, and may impact campers and backpackers at higher
elevations.

As high pressure builds into southeastern british columbia Friday
through the weekend, offshore flow will give a good warming and
drying trend. Albrecht

Aviation Northwest flow aloft over western washington tonight
and Sunday as an upper ridge remains over the offshore waters. At
the surface, onshore flow will continue with high pressure
offshore and lower pressure east of the cascades.

Just some high clouds over most of the area through Sunday.

Shallow marine layer along the coast with MVFR ceilings
developing for a few hours Sunday morning.

Ksea... Just some high clouds at times through Sunday. North
northeast wind 5 to 10 kt backing to northwest again midday Sunday.

Felton

Marine A typical august pattern will prevail through the
middle of next week. Expect onshore flow of varying strength to
persist due to high pressure offshore and lower pressure east of
the cascades. A weak system will approach the coastal waters on
Wednesday and move inland Thursday. Small craft advisory west
winds are likely in the central and eastern strait of juan de
fuca in the evening and early morning hours each night. Felton

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 5 am pdt Sunday 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
FRDW1 - 9449880 - Friday Harbor, WA 9 mi76 min Calm G 1 53°F 52°F1021.2 hPa
46088 - New Dungeness, WA (Hein Bank) 20 mi62 min W 16 G 19 55°F 52°F2 ft1020 hPa (-0.5)52°F
SISW1 - Smith Island, WA 26 mi52 min WSW 15 G 20 55°F 1021.2 hPa (+0.0)
CHYW1 - 9449424 - Cherry Point, WA 27 mi52 min S 8 G 8.9 56°F 52°F1020.5 hPa (+0.0)
CPMW1 27 mi52 min S 8 G 8 56°F 53°F
46118 31 mi62 min SE 18 60°F 1020.5 hPa53°F
PBFW1 - Padilla Bay Reserve, WA 38 mi82 min SSW 5.1 55°F 1022 hPa51°F
PTAW1 - 9444090 - Port Angeles, WA 38 mi76 min 4.1 G 7 59°F 51°F1021.7 hPa
PTWW1 - 9444900 - Port Townsend, WA 41 mi52 min WSW 7 G 14 58°F 53°F1021.9 hPa (-0.4)

Wind History for Friday Harbor, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Friday Harbor Airport, WA10 mi59 minN 010.00 miFair49°F48°F100%1021.4 hPa
Eastsound, Orcas Island Airport, WA15 mi57 minS 410.00 miFair59°F50°F72%1021 hPa

Wind History from FHR (wind in knots)
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Last 24hrW43CalmCalmCalmCalmCalmCalmE4SE3SE5SE5E6E6SE63SW7SW8S5S53SW4CalmCalm
1 day agoSW6S3CalmCalmCalmCalmSW5S5S7S10
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2 days agoW5SW5CalmCalmCalmCalmCalmCalmSE4E7E7E6E8SE8SE5SE5S7SW8SW8SW8SW9
G15
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Tide / Current Tables for Roche Harbor, San Juan Island, Washington
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Roche Harbor
Click for Map
Sun -- 03:09 AM PDT     7.36 feet High Tide
Sun -- 04:51 AM PDT     Moonrise
Sun -- 06:13 AM PDT     Sunrise
Sun -- 10:21 AM PDT     -1.25 feet Low Tide
Sun -- 05:46 PM PDT     7.77 feet High Tide
Sun -- 07:49 PM PDT     Moonset
Sun -- 08:17 PM PDT     Sunset
Sun -- 10:56 PM PDT     4.57 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.86.477.47.26.34.82.91-0.5-1.2-1.1-0.21.22.94.76.47.57.77.36.45.44.84.6

Tide / Current Tables for Limestone Point, Spieden Channel, Washington Current
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Limestone Point
Click for MapFlood direction 85 true
Ebb direction 283 true

Sun -- 12:56 AM PDT     1.45 knots Max Flood
Sun -- 02:42 AM PDT     -0.00 knots Slack
Sun -- 04:50 AM PDT     Moonrise
Sun -- 06:13 AM PDT     Sunrise
Sun -- 07:43 AM PDT     -4.67 knots Max Ebb
Sun -- 11:00 AM PDT     0.00 knots Slack
Sun -- 01:40 PM PDT     3.16 knots Max Flood
Sun -- 04:36 PM PDT     -0.00 knots Slack
Sun -- 07:48 PM PDT     Moonset
Sun -- 08:17 PM PDT     Sunset
Sun -- 08:57 PM PDT     -3.57 knots Max Ebb
Sun -- 11:57 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.40.9-0.4-1.7-2.9-3.9-4.5-4.6-3.9-2.3-01.82.93.12.41-0.6-1.9-2.8-3.4-3.6-3.1-1.8

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 (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.