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 5:16AM||Sunset 8:56PM||Tuesday May 22, 2018 8:31 PM PDT (03:31 UTC)||Moonrise 12:14PM||Moonset 1:34AM||Illumination 58%|
EDIT (on/off)  Help
|PZZ133 Northern Inland Waters Including The San Juan Islands- 250 Pm Pdt Tue May 22 2018 |
Tonight..W wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Wed..W wind to 10 kt. Wind waves 1 ft or less. Patchy fog in the morning.
Wed night..S wind 20 to 30 kt. Wind waves 3 to 5 ft.
Thu..S wind 10 to 20 kt becoming sw to 10 kt in the afternoon. Wind waves 1 to 3 ft subsiding to 1 ft or less in the afternoon.
Thu night..S wind 5 to 15 kt rising to 15 to 25 kt after midnight. Wind waves 2 ft or less building to 2 to 4 ft after midnight.
Fri..S wind 5 to 15 kt. Wind waves 2 ft or less.
Fri night..SW wind 20 to 30 kt easing to 15 to 25 kt after midnight. Wind waves 3 to 5 ft.
Sat..SW wind 10 to 20 kt rising to 15 to 25 kt. Wind waves 2 to 4 ft.
Sun..S wind to 10 kt becoming w. Wind waves 1 ft or less.
|PZZ100 250 Pm Pdt Tue May 22 2018 |
Synopsis for the northern and central washington coastal and inland waters..High pres will remain offshore through Saturday with lower pres east of the cascades, maintaining onshore flow. Onshore flow will be stronger Wednesday and Wednesday night, and there is a good chance of gale westerlies in the central and eastern strait of juan de fuca.
7 Day Forecast for Marine Location Near Bellingham, WAHourly EDIT Help
Area Discussion for - Seattle, WA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksew 222130|
area forecast discussion
national weather service seattle wa
230 pm pdt Tue may 22 2018
Synopsis Onshore flow will develop Wednesday and increase through
the end of the week. Areas of morning low clouds will be mainly on
the coast Wednesday--but marine clouds will increase Thursday and
spread farther inland. A few showers might develop over the cascades
Wednesday afternoon and evening--with a better chance of showers
Friday afternoon through Saturday morning. A weak ridge is likely to
build into the area Sunday while a front approaches the area--but
the front should stay north over british columbia.
Short term A few patches of low clouds and fog hung on into
the afternoon--mainly on the north coast and in the strait. Areas
of low clouds or fog should increase overnight on the coast and
in the strait again, and onshore flow will develop on Wednesday
with the marine layer deepening through Wednesday night. A few
showers might build up near the cascade crest Wednesday
afternoon and evening. After a stronger marine push Wednesday
evening, expect more widespread low clouds over most of the
lowlands Thursday morning. On Friday the marine layer clouds plus
additional moisture from a weak disturbance kicking north through
the area from oregon, should combine for a mostly cloudy day.
Showers might develop--most likely over the cascades: a few model
runs have had quite a bit of shower activity late in the week while
other solutions have kept the moisture south and east of the area--
the ECMWF today as precip over oregon and hardly any over wa.
Long term The hint of a little upper trough Saturday morning
with a deep marine layer might result in a few areas of drizzle
of light showers and then some afternoon sunbreaks. Whatever
happens, the mostly cloudy chance of showers type of forecast should
give way to a good chance of warmer and sunnier weather for Sunday
and Monday. That weak upper trough early Saturday should give way to
a weak ridge Sunday--with 500mb heights rising about 100m into
the upper 570s. But there wont be a ridge axis over the area--
the models show a front nearing the region and an upper trough
offshore early next week--but so far the front is only forecast to
effect british columbia while upper level heights stay high
enough for pretty good weather for western washington. So, precip
is not likely over our area from that front--but the tail end of
the front and onshore flow might very well result in marine
layer cloudiness at times.
Aviation Light east-southeasterly flow aloft this afternoon and
evening before turning southwesterly overnight as both an upper
level ridge over bc continues to work inland and as an upper level
low centered over nevada dissipates. The air mass is generally dry
and stable... Although low level moisture is expected to increase
along the coast and near the strait of juan de fuca overnight
tonight as onshore surface flow continues. This will lead to the
development of MVFR to possibly ifr conditions in these locations
while the remainder of W wa is expected to remainVFR with only a
few or sct high clouds present. As has been the pattern lately...VFR
conditions are expected to return to all locations by late Wednesday
Ksea...VFR conditions expected to continue over the next 24 hours.
Surface winds northwest 5 to 10 knots this evening and tonight
before becoming southwest early Wednesday morning... Turning more
westerly Wednesday afternoon. Smr
Marine High pressure will remain offshore through Saturday with
lower pressure east of the cascades, maintaining onshore flow. Small
craft advisory westerlies are likely in the central and eastern
strait of juan de fuca again late this afternoon through early
Onshore flow still looks to be stronger Wednesday and Wednesday
night as models remain consistent with putting gale westerlies in
the central and eastern strait and small craft advisory winds in the
adjacent waters of admiralty inlet and the northern inland waters.
A gale watch remains in place for the aforementioned portions of the
strait and looks good. Will likely wait a bit before adding
headlines for the adjacent waters. Mcdonnal smr
Sew watches warnings advisories
Pz... Gale watch from Wednesday afternoon through late Wednesday night
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.
Small craft advisory until 3 am pdt Wednesday 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|
|46118||4 mi||97 min||W 7.8||65°F||1009.2 hPa||54°F|
|CHYW1 - 9449424 - Cherry Point, WA||16 mi||44 min||S 4.1 G 4.1||61°F||1009.3 hPa|
|CPMW1||16 mi||44 min||SSE 2.9 G 2.9||62°F||49°F|
|PBFW1 - Padilla Bay Reserve, WA||20 mi||62 min||W 4.1||66°F||1010 hPa||53°F|
|FRDW1 - 9449880 - Friday Harbor, WA||31 mi||56 min||Calm G 5.1||62°F||51°F||1009.8 hPa|
|SISW1 - Smith Island, WA||34 mi||42 min||W 17 G 21||54°F||1010.2 hPa (-1.5)||49°F|
|46088 - New Dungeness, WA (Hein Bank)||45 mi||42 min||WSW 18 G 19||52°F||50°F||2 ft||1009.7 hPa (-1.7)||50°F|
|PTWW1 - 9444900 - Port Townsend, WA||46 mi||44 min||WSW 13 G 20||61°F||51°F||1010.9 hPa|
Wind History for Cherry Point South Dock, WA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Bellingham, Bellingham International Airport, WA||3 mi||39 min||WSW 3||10.00 mi||Fair||69°F||48°F||49%||1010.1 hPa|
|Burlington/Mount Vernon, Skagit Regional Airport, WA||20 mi||37 min||SSW 6||10.00 mi||Fair||63°F||51°F||68%||1010.2 hPa|
|Eastsound, Orcas Island Airport, WA||21 mi||37 min||S 6||10.00 mi||Fair||66°F||51°F||60%||1009.5 hPa|
Wind History from BLI (wind in knots)
|1 day ago||S||S||SE||SE||S||S||Calm||S||S||Calm||S||S||S||S||SW||S||W||NW||SW||W||W|
|2 days ago||S||S||S||S||S||S||S||S||S||S||S||S||S||S|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Tue -- 12:24 AM PDT 9.04 feet High Tide
Tue -- 02:33 AM PDT Moonset
Tue -- 05:20 AM PDT Sunrise
Tue -- 07:05 AM PDT 5.19 feet Low Tide
Tue -- 10:17 AM PDT 5.79 feet High Tide
Tue -- 01:14 PM PDT Moonrise
Tue -- 05:26 PM PDT 1.45 feet Low Tide
Tue -- 08:53 PM PDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Hale Passage |
Click for Map
Tue -- 12:34 AM PDT -0.00 knots Slack
Tue -- 02:32 AM PDT Moonset
Tue -- 03:51 AM PDT -0.82 knots Max Ebb
Tue -- 05:24 AM PDT Sunrise
Tue -- 07:24 AM PDT 0.00 knots Slack
Tue -- 08:56 AM PDT 0.17 knots Max Flood
Tue -- 09:43 AM PDT -0.00 knots Slack
Tue -- 01:16 PM PDT Moonrise
Tue -- 03:18 PM PDT -0.86 knots Max Ebb
Tue -- 06:05 PM PDT 0.00 knots Slack
Tue -- 08:50 PM PDT Sunset
Tue -- 09:33 PM PDT 1.75 knots Max Flood
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 (23,6,7,8)(on/off)  Help
Ad by Google
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.