Monday, September24, 2018 L-36.com


Marine Weather and Tides
Coupeville, WA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:00AMSunset 7:04PM Monday September 24, 2018 12:10 AM PDT (07:10 UTC) Moonrise 6:24PMMoonset 5:19AM Illumination 100% Phase: Full Moon; Moon at 14 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- 701 Pm Pdt Sun Sep 23 2018
Tonight..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..Light wind becoming nw to 10 kt in the afternoon. Wind waves 1 ft or less.
Mon night..NW wind to 10 kt. Wind waves 1 ft or less.
Tue..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Tue night..NW wind to 10 kt. Wind waves 1 ft or less.
Wed..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Wed night..NW wind to 10 kt. Wind waves 1 ft or less.
Thu..NW wind 5 to 15 kt becoming light. Wind waves 2 ft or less becoming less than 1 ft.
Fri..NW wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 701 Pm Pdt Sun Sep 23 2018
Synopsis for the northern and central washington coastal and inland waters..Northerly flow will continue through Thursday with a thermal trough along the coast. Fraser outflow will develop on Friday.


7 Day Forecast for Marine Location Near Coupeville, WA
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location: 48.22, -122.69     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 240320
afdsew
area forecast discussion
national weather service seattle wa
830 pm pdt Sun sep 23 2018

Synopsis An upper level ridge just offshore will give the area
dry weather with sunny, warm days and cool clear nights for much of
the upcoming week. The ridge will weaken toward the end of the week
into next weekend with a return to more unsettled weather.

Short term There are some clouds over the mountains, but the
lowlands are mostly clear this evening. An offshore upper level
ridge building along 140w tonight into Monday will nudge dry,
northwesterly flow aloft into western washington. At low levels,
pressure gradients will remain pretty weak overnight. Light winds,
cooler temperatures and lingering low level moisture will help areas
of fog develop into Monday morning over the preferred valley
locations - especially over the south interior. What does form will
be shallow and should burn off quickly Monday morning - aided by the
building offshore ridge and downstream subsidence. Monday will see
mostly sunny skies and highs in the 60s.

The offshore upper level ridge will shift inside of 140w Monday
night and Tuesday helping further boost heights over western
washington. Clear skies and light wind will help fog to redevelop in
the preferred valley locations again Tuesday morning. Another quick
burnoff followed by sunny skies will boost highs Tuesday into the
mid 60s to mid 70s. Wednesday will likely be very similar, the only
difference may be a little bit less fog in the morning.

Long term Medium range models continue to be in pretty
good agreement through the end of the week - especially with the
upper level pattern. The models continue to show the upper level
ridge remaining just inside of 140w into Thursday then retrograding
to the west and amplifying well into the gulf of alaska as a weak
upper level shortwave trough slides down through eastern british
columbia. At low levels, models agreeing on weak offshore flow
solution Thursday and Friday with a fraser river outflow pattern
developing Friday night into Saturday. Most of the guidance agrees
on a transition to more unsettled weather later in the day Saturday
into Sunday.

Aviation Northwest flow aloft will continue through Monday
with an upper ridge offshore. At the surface, onshore flow will
weaken and turn more northerly. The air mass is stable with areas
of low and mid level clouds but generallyVFR conditions.

Areas of MVFR or perhaps ifr low clouds will develop later
tonight. Some valley fog is also likely as well, especially over
the south interior. The low levels will dry on Monday with mostly
sunny conditions by afternoon.

Ksea... Just scattered clouds this evening. There could be some MVFR
low clouds Monday morning but it is a tough call and could go either
way. Light north wind.

Marine Onshore flow is pretty light now. Northerly
flow will prevail Monday through Thursday with a thermal trough
along the coast. The coastal waters will see small craft advisory
strength northwest winds at times during this period. Fraser
outflow will develop on Friday with small craft advisory strength
northeast winds possible for the northern inland waters.

Sew watches warnings advisories
Wa... None.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SISW1 - Smith Island, WA 10 mi81 min WSW 2.9 G 4.1 54°F 1022.6 hPa (+0.7)47°F
PBFW1 - Padilla Bay Reserve, WA 21 mi41 min SE 1 49°F 1022 hPa46°F
46088 - New Dungeness, WA (Hein Bank) 26 mi51 min WSW 12 G 14 53°F 51°F1 ft1021.9 hPa50°F
FRDW1 - 9449880 - Friday Harbor, WA 28 mi95 min Calm G 1 51°F 52°F1022.3 hPa
46118 35 mi76 min SSE 3.9 55°F 1021.6 hPa50°F
PTAW1 - 9444090 - Port Angeles, WA 40 mi95 min SW 5.1 G 7 53°F 51°F1022.6 hPa
WPOW1 - West Point, WA 41 mi71 min N 5.1 G 6 56°F 1022.7 hPa (+0.7)47°F
CPMW1 44 mi47 min 52°F 54°F
CHYW1 - 9449424 - Cherry Point, WA 45 mi41 min 1022.3 hPa
EBSW1 - 9447130 - Seattle, WA 47 mi41 min 58°F 56°F1022.2 hPa

Wind History for Port Townsend, WA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA10 mi15 minESE 410.00 miMostly Cloudy51°F42°F71%1023.6 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA22 mi36 minN 010.00 miOvercast50°F46°F88%1022.7 hPa

Wind History from NUW (wind in knots)
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Last 24hrS5SE5SE6SE5SW3NE3SE3SE7SE5S7S4W7W6W5W6NW5NW5NW3NW3CalmCalmCalmSE3SE4
1 day agoSE21
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S10SW5S8SE8SE7W6SW5W5SW10W9W20
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2 days agoSE19
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SE10SE9SE6SE7----SE8SE8S13S11S7E8E11SE12SE12
G22
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S11

Tide / Current Tables for Coupeville, Washington
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Point Wilson, 1.4 miles NE of, Washington Current
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
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.