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Marine Weather and Tides Coupeville, WA Version 3.4

What's New / NOTES 10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome. 10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

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Sunrise 5:17AM

Sunset 8:57PM

Saturday May 25, 2019 3:50 AM PDT (10:50 UTC)

Moonrise 12:55AM

Moonset 10:31AM

Illumination 61%

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.

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7 Day Forecast for Marine Location Near Coupeville, WA

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Area Discussion for - Seattle, WA

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Fxus66 ksew 251016 afdsew area forecast discussion national weather service seattle wa 318 am pdt Sat may 25 2019 Synopsis Another upper level low will drop south today with showers increasing over western washington throughout the day. While chances for showers and isolated thunderstorms will linger in the mountains through memorial day... Drier and warmer weather is expected for the lowlands starting Sunday and into next week. Short term today through Tuesday Current radar this early morning remains pretty quiet while satellite shows low clouds in place over the area but the bulk of moisture hanging out over the coastal waters and moving to the south. Models show that southerly flow is what will bring another upper level low down along the coast and associated showers reaching inland. Precip chances will gradually increase during the morning hours with more widespread pops expected to kick in by late morning early afternoon. Nothing breaks the stride of this system though... As it will be down to the or ca border by tonight... Taking precip activity with it. As this system plunges further south and then moving inland by Sunday afternoon... Some wrap around moisture may allow for mountain showers Sunday afternoon and evening. The lowlands however should be able to remain dry and daytime highs will rebound back into the 70s. Upper level ridging off the coast will be the major weather feature for memorial day keeping the majority of W wa dry and lowland temps in the lower to mid 70s... Perfect for outdoor activities. Wrap around moisture from the aforementioned low will still be an issue for the cascades... And enough instability might be present for the prospect for an afternoon early evening thunderstorm. Tuesday sees the coastal ridge start to nudge its way inland... Allowing for warm and dry conditions to continue. Smr Long term Wednesday through Saturday This upper ridging will remain in place over the area for the bulk of the extended with dry conditions persisting. Low level onshore flow for much of this time frame will keep afternoon high temperatures in check... Although lowland interior locations are still looking at high temps in the lower 70s. An upper level trough will start to nudge into the area as early as Thursday night or as late as Saturday... Models are in some disagreement as to when the pattern change will occur. But the prospect for showers to return seems to be in the cards for next weekend. Smr Aviation Westerly flow aloft becoming southerly later this morning then easterly this afternoon as an upper level low moves south off the coast. Flow aloft becoming northeast overnight as

the low moves into northern california late tonight. In the lower level onshore flow will becoming light tonight into Sunday. Ceilings over the interior in the 3500-4500 foot range lowering to 1000 to 2000 feet by late morning and remaining in that range through the afternoon. Improving trend this evening with low cloud decks dissipating leaving just mid and high level clouds. Ksea... Ceilings near 3500 feet lower to around 2500 feet by 15z then down to around 1500 feet by 19z. Ceilings improving tonight to AOA 10000 feet by Sunday morning. Southerly winds 4 to 8 knots becoming northerly 00z-03z Sunday. Felton Marine Onshore flow today will weaken becoming light tonight into Sunday. Gale force winds over the outer coastal waters and small craft advisory winds over the inner coastal waters will ease to 20 knots or less tonight. Westerly swell will subside below 10 feet tonight. Onshore flow will increase again on Monday and continue through Wednesday with high pressure centered well offshore. Small craft advisory westerlies are possible in the central and eastern strait of juan de fuca each evening. Felton Hydrology The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated as needed until then. Sew watches warnings advisories Wa... None. Pz... Small craft advisory from 2 pm this afternoon to 6 pm pdt this evening for coastal waters from CAPE flattery to james island 10 to 60 nm-coastal waters from james island to point grenville 10 to 60 nm-coastal waters from point grenville to CAPE shoalwater 10 to 60 nm. Gale warning until 2 pm pdt this afternoon for coastal waters from CAPE flattery to james island 10 to 60 nm-coastal waters from james island to point grenville 10 to 60 nm- coastal waters from point grenville to CAPE shoalwater 10 to 60 nm. Small craft advisory for rough bar until 6 pm pdt this evening for grays harbor bar. Small craft advisory until 6 pm pdt this evening for coastal waters from CAPE flattery to james island out 10 nm-coastal waters from james island to point grenville out 10 nm- coastal waters from point grenville to CAPE shoalwater out 10 nm.

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
PTWW1 - 9444900 - Port Townsend, WA	8 mi	50 min	ESE 1.9 G 4.1	53°F	51°F		1015.1 hPa (+0.0)
SISW1 - Smith Island, WA	10 mi	60 min	SSE 9.9 G 11	53°F			1014.2 hPa (-0.3)	48°F
46125	22 mi	42 min	7.8	54°F			1013.9 hPa	49°F
46088 - New Dungeness, WA (Hein Bank)	26 mi	60 min	SE 1.9 G 5.8	51°F	50°F		1013.8 hPa (-0.4)	51°F
FRDW1 - 9449880 - Friday Harbor, WA	28 mi	74 min	SSW 2.9 G 5.1	52°F	51°F		1014.3 hPa
46118	35 mi	60 min			57°F
46120	35 mi	43 min	S 5.8	53°F			1014.2 hPa	48°F
PTAW1 - 9444090 - Port Angeles, WA	40 mi	74 min	Calm G 2.9	55°F	50°F		1014.1 hPa
WPOW1 - West Point, WA	41 mi	50 min	S 13 G 14	53°F			1015.5 hPa (+0.3)	48°F
CPMW1	44 mi	50 min	SSE 8.9 G 9.9	55°F	53°F
CHYW1 - 9449424 - Cherry Point, WA	45 mi	50 min					1014.3 hPa (+0.0)

Wind History for Port Townsend, WA

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W4 G7

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Whidbey Island Naval Air Station - Ault Field, WA	10 mi	1.9 hrs	SSE 5	10.00 mi	Mostly Cloudy	57°F	48°F	74%	1015.6 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA	22 mi	55 min	SE 4	10.00 mi	Overcast	55°F	50°F	82%	1014.9 hPa

Wind History from NUW (wind in knots)

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Tide / Current Tables for Coupeville, Washington

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Tide / Current Tables for Point Wilson, 2.3 miles NE of, Washington Current

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Weather Map and Satellite Images

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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

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Wind Forecast for Seattle, WA (6,6,7,8)

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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.