Sunday, September23, 2018 L-36.com


Marine Weather and Tides
Anacortes, 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 6:58AMSunset 7:06PM Sunday September 23, 2018 12:55 PM PDT (19:55 UTC) Moonrise 6:00PMMoonset 4:13AM Illumination 99% Phase: Waxing Gibbous; 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 851 Am Pdt Sun Sep 23 2018
Today..SW wind 5 to 15 kt. Wind waves 2 ft or less. A chance of showers in the morning.
Tonight..SW wind 10 to 20 kt. Wind waves 1 to 3 ft.
Mon..SW wind to 10 kt. Wind waves 1 ft or less.
Mon night..NW wind to 10 kt rising to 10 to 20 kt after midnight. Wind waves 1 ft or less building to 1 to 3 ft after midnight.
Tue..NW wind 10 to 20 kt. Wind waves 1 to 3 ft.
Tue night..Light wind becoming nw 10 to 20 kt after midnight. Wind waves less than 1 ft becoming 1 to 3 ft after midnight.
Wed..NW wind 5 to 15 kt easing to 10 kt. Wind waves 2 ft or less.
Thu..NW wind 5 to 15 kt becoming 10 to 20 kt. Wind waves 1 to 3 ft.
PZZ100 851 Am Pdt Sun Sep 23 2018
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will continue today. A thermal trough will develop along the coast Monday with northerly flow through Thursday.


7 Day Forecast for Marine Location Near Anacortes, WA
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location: 48.51, -122.6     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 231602
afdsew
area forecast discussion
national weather service seattle wa
900 am pdt Sun sep 23 2018

Synopsis An upper level trough exiting the area this
morning will allow a drier pattern to settle in over the pacific
northwest through much of the week. An upper level ridge, centered
offshore, will build into the area Monday and remain over the
pacific northwest through Thursday. The ridge will weaken toward the
end of the week into next weekend.

Short term Satellite and radar imagery is showing
scattered to broken cloud cover and a few lingering showers this
morning - leftovers behind the exiting upper level shortwave
currently moving over eastern washington. Expect partly sunny skies
today and cooler temperatures today, with highs reaching into the
lower to mid 60s. A fine pacific northwest fall day.

An offshore upper level ridge will build along 140w tonight into
Monday nudging northwesterly flow aloft into western washington. At
low levels, onshore pressure gradients will ease today but will be
enough for mostly cloudy into Monday morning. The building offshore
ridge and downstream subsidence will help clear things up into
Monday with mostly sunny skies and highs in the 60s.

The offshore upper level ridge will shift inside of 140w Monday
night and Tuesday helping boost heights over western washington.

This will keep skies generally clear over the area, which will mean
cool nights and normal to slightly above normal high temperatures.

The cool nights coupled with lingering low level moisture will make
allow radiational fog to develop in the preferred valley locations
Tuesday morning. What fog that does form will be shallow and will
burn off quickly, leaving sunny skies across the area Tuesday
afternoon. Highs warming up with the ridge overhead into the mid 60s
to mid 70s.

Long term From previous discussion... Models solutions in the
extended period bouncing around with each run or two. There is
general agreement in the models Wednesday and Thursday with the
blocking pattern remaining intact over the eastern pacific. The
ecmwf has gone back to the low level offshore flow solution for
Wednesday and Thursday while the GFS keeps the surface gradients
northwesterly. Even with the low level offshore flow ecmwf
temperature guidance is about 5 degrees cooler than the GFS for both
days. Have leaned the highs toward the warmer guidance with highs in
the mid 60s to mid 70s both days. In a twist from the 00z runs
Saturday morning the ECMWF now has the upper level ridge offshore
pinching off and a cool upper level trough digging down the british
columbia coast on Friday ( the GFS solution on the 00z runs Saturday
morning ). The GFS keeps the upper level ridge closer to the area
keeping the trough a little further east. Both models have a flat
ridge over the area on Saturday with the GFS 60 dms higher on the
500 mb heights. The ECMWF generates a little precipitation on
Saturday. Going to stay with the idea of the blocking pattern
offshore not breaking down so quickly, which is more in line with
the GFS solution on the 00z Sunday run, and keep the forecast dry
through the end of the extended period. With the ridge weakening
will push high temperatures back to near normal for Friday and
Saturday, mostly in the 60s. Felton

Aviation Northwest flow aloft will continue today and tonight
with an upper ridge offshore. At the surface, onshore flow will
prevail with high pressure offshore and lower pressure inland. The
air mass is stable with areas of low and mid level moisture. In
general, areas of MVFR low clouds should lift toVFR later today.

There will be some MVFR low clouds again later tonight but less than
this morning as the low levels continue to slowly dry.

Ksea... MVFR low clouds should lift to aVFR layer late this morning
and perhaps scatter entirely at times in the afternoon.

MVFR ceilings might return again Monday morning but it looks like it
could go either way. Southerly wind 4-8 knots will become northerly
this afternoon. Schneider

Marine Onshore flow will continue today with marginal small
craft advisory strength west winds expected in the strait tonight.

A thermal trough will develop along the coast Monday with northerly
flow continuing through Thursday. Small craft advisory strength
northwest winds are likely at time for the coastal waters during
this period. Schneider

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory from 5 pm this afternoon to 3 am pdt Monday
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
PBFW1 - Padilla Bay Reserve, WA 8 mi85 min W 2.9 58°F 1022 hPa48°F
46118 15 mi60 min W 7.8 55°F 1021.2 hPa49°F
SISW1 - Smith Island, WA 18 mi65 min S 8.9 G 11 52°F 1022.1 hPa (+1.5)49°F
FRDW1 - 9449880 - Friday Harbor, WA 22 mi79 min SSE 4.1 G 6 54°F 52°F1021.8 hPa
CPMW1 26 mi43 min S 5.1 G 6 54°F 53°F
CHYW1 - 9449424 - Cherry Point, WA 26 mi37 min 1022 hPa
46088 - New Dungeness, WA (Hein Bank) 32 mi65 min SE 7.8 G 7.8 51°F 52°F1 ft1021.7 hPa (+1.3)50°F

Wind History for Friday Harbor, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Burlington/Mount Vernon, Skagit Regional Airport, WA10 mi80 minSSW 510.00 miOvercast59°F46°F63%1022 hPa
Whidbey Island Naval Air Station - Ault Field, WA11 mi2 hrsS 410.00 miOvercast62°F46°F56%1023 hPa
Bellingham, Bellingham International Airport, WA20 mi62 minSSE 910.00 miOvercast57°F46°F69%1022.2 hPa
Eastsound, Orcas Island Airport, WA21 mi60 minSSW 410.00 miOvercast57°F50°F77%1021.7 hPa
Friday Harbor Airport, WA22 mi62 minSE 610.00 miOvercast57°F48°F74%1022.1 hPa

Wind History from BVS (wind in knots)
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Last 24hr6SW4SW6S9SW8
G16
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W93SE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3SE5S3SW6
1 day agoSE7SE5E6NE6E6E7S4SE6E6SE4S8
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2 days ago6CalmCalmNE5NE4NE6E5NE8E7E7SE6SE65
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SE6S3SE4SE6--SE4CalmCalm4
G10

Tide / Current Tables for Anacortes, Guemes Channel, 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 Guemes Channel, West entrance 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 (15,3,4,5)
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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.