Marine Weather and Tides
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
|Sunrise 5:08AM||Sunset 9:17PM||Saturday June 23, 2018 11:01 AM PDT (18:01 UTC)||Moonrise 3:53PM||Moonset 1:51AM||Illumination 78%|
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|PZZ134 Admiralty Inlet- 900 Am Pdt Sat Jun 23 2018 |
Today..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Tonight..NW wind 10 to 20 kt becoming 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Sun..Variable wind to 10 kt becoming nw in the afternoon. Wind waves 1 ft or less.
Sun night..NW wind 15 to 25 kt. Wind waves 2 to 4 ft.
Mon..NW wind 10 to 20 kt becoming S 5 to 15 kt in the afternoon. Wind waves 1 to 3 ft.
Mon night..NW wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..Variable wind to 10 kt becoming nw 5 to 15 kt. Wind waves 2 ft or less.
Wed..NW wind to 10 kt rising to 10 to 20 kt. Wind waves 1 ft or less building to 1 to 3 ft.
|PZZ100 900 Am Pdt Sat Jun 23 2018 |
Synopsis for the northern and central washington coastal and inland waters..Moderate onshore flow will continue today, weaken Sunday, then increase again Sunday night. Onshore flow will continue into next week. Small craft advisory strength westerly winds are likely each day in the strait. Gale force winds are possible at times.
7 Day Forecast for Marine Location Near Portsend, WAHourly EDIT Help
Area Discussion for - Seattle, WA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksew 231625|
area forecast discussion
national weather service seattle wa
925 am pdt Sat jun 23 2018
Synopsis An offshore upper ridge will move to the coast today,
gradually breaking up the clouds over western washington. The
ridge will bring sunny and warmer weather on Sunday. An upper
trough will arrive Monday for a chance of showers and cooler
weather. Tuesday and Wednesday will be partly to mostly sunny,
then another upper trough will be over the area late in the week.
Short term Morning stratus remains in place over much of W wa
this morning. These clouds likely to linger into the afternoon hours
as any clearing may need the help of the incoming upper level ridge
to get started. Current radar shows some very weak convergence zone
echoes over western snohomish county... Kind of masked within the
ground clutter but becomes visible when the image is
looped... .Resulting in a morning sprinkle or drizzle there.
As already alluded to... Upper level ridging will build over the area
today helping to eventually clear skies out... With some peeks of sun
possible by mid to late afternoon. The length of time these clouds
linger will play a factor in how the temperature forecast will turn
out for the day. If clearing adheres to current forecast... Inherited
temps would be okay... With highs in the lowlands getting into the
low to mid 70s. However... Longer cloud cover would result in temps
being cooler than forecast. With the ridge axis making it to the
coast by 11 am pdt this morning... That would be a good indicator for
clearing... So will leave forecast as is. Models have been consistent
on the progressive nature of this ridge... As it will make its way
out of the area overnight tonight... Although it is a little hesitant
to leave wa entirely as it lingers over the eastern half of the
state into early Sunday afternoon. This will keep conditions over w
wa sunny and dry for Sunday... With afternoon highs expected to reach
near 80 in the interior lowlands.
A front in advance of an upper level low will reach the coast by
Sunday evening and moving inland overnight... With pops area-wide
Monday morning. Models have had trouble with this feature in past
runs but are finally gelling on a solution... Agreeing that the upper
low will lift northeastward through the day with dry conditions re-
emerging over the southern half of the CWA by late Monday afternoon.
This will still manage to knock temps down... With highs expected to
be in the upper 60s to around 70 in the interior.
As already stated... Inherited forecast covers the above well and
will make no changes or updates at this time. Smr|
Long term From previous discussion... The upper trough axis will
move east of the cascades Monday night, leaving zonal and weakly
cyclonic flow over western washington on Tuesday. The day will
probably start mostly cloudy with a few residual showers, becoming
mostly sunny in the afternoon. Strictly zonal flow will continue
Wednesday -- which should allow for a mostly sunny day -- and then
another upper trough will bring a chance of showers Wednesday night
through Friday. Mcdonnal
Aviation Flow aloft today will be northwesterly as a transient
upper ridge moves through the region. Flow aloft will turn westerly
tonight then southwesterly Sunday morning as a weak front approaches
the coast. Moderate surface onshore flow will continue. The air mass
is stable with marine stratus over most of the area this morning.
Most terminals have MVFR ceilings 1-2k ft this morning. The olympics
are mostly clear and there are definite holes in the clouds, mainly
near the strait and over the southwest interior. The building upper
ridge should allow ceilings to lift today and eventually dissipate.
Guidance suggests late afternoon scattering, say 23z, with mostly
clear skies through the night into Sunday. Some stratus will reform
early Sunday morning, mainly western sections, but there could be a
few hours of MVFR ceilings around puget sound.
Ksea... Improving trend will continue today, with 3k ft ceiling by
21z or so, and scattering late afternoon. Onshore gradients are
considerably weaker late tonight so there is a decent chance of no
ceiling Sunday morning. Variable wind to 5 kt becoming northerly 5
to 10 kt this afternoon and tonight. Chb
Marine Onshore flow will continue into next week with westerlies
in the strait of juan de fuca rising to at least 20-30 kt each
evening, but possibly reaching gale force for a few hours. A cold
front will reach western washington Sunday night ahead of the next
upper trough. Currently Sunday evening looks like the best bet for
gale force westerlies in the strait. Wednesday evening could also
have unusually strong onshore gradients. Chb
Sew watches warnings advisories
Pz... Small craft advisory until 3 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 StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|46125||15 mi||43 min||3.9||56°F||1022 hPa||54°F|
|SISW1 - Smith Island, WA||16 mi||71 min||W 12 G 15||55°F||1022 hPa (+1.0)||50°F|
|46088 - New Dungeness, WA (Hein Bank)||27 mi||41 min||WSW 12 G 16||54°F||52°F||1 ft||1021.8 hPa||51°F|
|PBFW1 - Padilla Bay Reserve, WA||30 mi||91 min||SSE 2.9||58°F||1022 hPa||54°F|
|WPOW1 - West Point, WA||35 mi||61 min||NNE 5.1 G 6||55°F||1022.7 hPa (+1.1)||54°F|
|46118||44 mi||66 min||SSW 7.8||57°F||1021.5 hPa||54°F|
Wind History for Port Townsend, WA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Whidbey Island Naval Air Station - Ault Field, WA||19 mi||65 min||SW 7||10.00 mi||Mostly Cloudy||61°F||53°F||75%||1023.3 hPa|
Wind History from NUW (wind in knots)
|1 day ago||SW||W||W||W||W||W||W||SW||SW||SW||SW||SW||SW||SW||SW||SW||SW||SW||S||SW||SW||SW|
|2 days ago||W||W||W||W||W||W||W||SW||SW||SW||SW||Calm||SW||SW|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Point Hudson |
Click for Map
Sat -- 12:54 AM PDT 8.87 feet High Tide
Sat -- 02:51 AM PDT Moonset
Sat -- 05:11 AM PDT Sunrise
Sat -- 08:00 AM PDT 0.69 feet Low Tide
Sat -- 03:12 PM PDT 6.64 feet High Tide
Sat -- 04:52 PM PDT Moonrise
Sat -- 07:18 PM PDT 4.85 feet Low Tide
Sat -- 09:15 PM PDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Tide / Current data from XTide NOT FOR NAVIGATION|
Weather Map and Satellite Images(on/off)  HelpWeather Map
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 (14,3,4,5)(on/off)  Help
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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.