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Marine Weather and Tides Artondale, 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 7:04AM

Sunset 5:43PM

Wednesday February 20, 2019 9:15 AM PST (17:15 UTC)

Moonrise 7:21PM

Moonset 8:04AM

Illumination 98%

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 Artondale, WA

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Area Discussion for - Seattle, WA

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Fxus66 ksew 201656 afdsew area forecast discussion national weather service seattle wa 856 am pst Wed feb 20 2019 Synopsis A cool upper level trough will remain over the area today keeping showers in the forecast. Dry northerly flow aloft developing tonight and continuing into Thursday. The next frontal system will arrive from the northwest on Friday. Another cool upper level trough will follow the front for the weekend into the early part of next week. Low snow levels will continue through the period. Short term today through Friday Isolated to scattered showers are expected today with a cool upper level trough over the region. Snow levels are low this morning, around 500-1000 ft, and may see a rain snow mix in the higher elevations with little to no accumulation. We've had a few snow reports this morning in areas like enumclaw and eatonville with just a light dusting. Temperatures will rise into the lower 40s this afternoon for mainly rain showers. 33 previous discussion... Upper level trough remaining over the area tonight with drier northerly flow aloft increasing after midnight. With the trough hanging around will have to keep a chance of showers in the forecast for the evening hours. Snow levels will be lowering as cooler air moves into the area so there is a chance that the showers could be rain and snow mixed or briefly in the form of snow. No significant accumulations expected. Lows tonight will be in the mid 20s to mid 30s. A little break in the action on Thursday with dry northerly flow aloft over the area. Cloud cover decreasing Wednesday night and with light surface gradients patchy morning freezing fog developing with the best chances over the southwest interior. Even with some sunshine Thursday afternoon highs will only be in the upper 30s to mid 40s. Temporary upper level ridge moving through the area Thursday night ahead of the next frontal system moving down the british columbia coast. Models in better agreement on the 00z run going more with the slower timing of previous ECMWF runs. The slower timing will keep the chance of precipitation confined to the north coast early Friday morning. Lows will be in the mid 20s to mid 30s. Slower timing of the front keeping most of the moisture out of the interior Friday morning. Snow levels will be low, 500 feet or less, so if the precipitation does arrive a little earlier it will be in the form of snow initially. As with the previous system increasing onshore flow ahead of the system will lift the snow levels up to around 1000 feet in the afternoon. Highs on Friday will be in the lower to mid 40s. Felton Long term Saturday through Tuesday Previous discussion... Extended models in good agreement with the front moving through the area Friday night into Saturday morning with another post frontal convergence zone possible. This feature has the potential to lower

the snow levels back down to 500 feet or less. Cool upper level trough settling over the area for the weekend into Monday. With the trough in the area will have to keep at least a chance of showers in the forecast. Snow levels will remain low generally 1000 feet or less. Any showers that occur in the late night and early morning hours could result in some small snow accumulations especially on the higher hills. Model solutions very inconsistent on Tuesday with the ecmwf lifting a warm front up from the south into the area. The gfs keeps this feature well south of the area. With the lack of consistency in the models will go with chance pops on Tuesday. Highs will remain well below normal through the period with a chance for some warming on Tuesday. Felton Aviation Northwest flow aloft with a fairly moist unstable air mass with scattered showers. As drier air moves into the region skies will clear later today and there area already areas of sunshine out on the coast and over parts of the strait of juan de fuca. Ksea... A few showers today, but clearing later today. There might be a few wet snowflakes mixed in with the showers this morning. Marine Small craft advisories are up for the coastal waters, but the inland waters mainly have northwest winds 5-15kts. Breezy northeast winds are expected to develop tonight in the northern waters as high pressure builds over british columbia. A cold front will reach western washington on Friday. Hydrology River flooding is not expected for the next 7 days Sew watches warnings advisories Wa... None. Pz... Small craft advisory until 10 pm pst 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. Small craft advisory for rough bar until 8 pm pst this evening for grays harbor bar. Small craft advisory for hazardous seas until 6 am pst Thursday 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-west entrance u.S. Waters strait of juan de fuca. Small craft advisory from midnight tonight to noon pst Thursday for central u.S. Waters strait of juan de fuca-east entrance u.S. Waters strait of juan de fuca. Small craft advisory from 4 pm this afternoon to noon pst Thursday for northern inland waters including the san juan islands.

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
46121	4 mi	33 min		39°F			1011.4 hPa	37°F
TCMW1 - 9446482 - Tacoma Met, WA	12 mi	34 min	E 1.9 G 1.9
TCNW1 - 9446484 - Tacoma, WA	13 mi	34 min		38°F	48°F		1011.9 hPa
WPOW1 - West Point, WA	29 mi	76 min	ENE 5.1 G 6	38°F			1011.5 hPa (+0.8)	33°F
46120	36 mi	33 min	NE 1.9	38°F			1010.7 hPa	34°F

Wind History for Tacoma MET, WA

(wind in knots)    EDIT      (on/off)   Help

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Tacoma, Tacoma Narrows Airport, WA	4 mi	23 min	N 0	10.00 mi	Overcast	37°F	34°F	89%	1011.7 hPa
Tacoma / McChord Air Force Base, WA	12 mi	78 min	N 0	10.00 mi	Overcast	35°F	35°F	100%	1011.8 hPa
Fort Lewis / Gray U. S. Army Airfield, WA	14 mi	78 min	N 0	10.00 mi	Overcast	36°F	36°F	100%	1011.4 hPa
Bremerton, Bremerton National Airport, WA	15 mi	20 min	N 0	10.00 mi	Overcast	36°F	35°F	97%	1013 hPa
Seattle, Seattle-Tacoma International Airport, WA	21 mi	23 min	ENE 5	10.00 mi	Overcast	38°F	33°F	83%	1011.9 hPa
Pierce County-Thun Field, WA	23 mi	41 min	N 0	5.00 mi	Fog/Mist	36°F	35°F	100%	1010.8 hPa

Wind History from TIW (wind in knots)

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Tide / Current Tables for Arletta, Washington

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Tide / Current Tables for Hale Passage, West end, 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 (12,3,4,5)

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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.