Marine Weather and Tides
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
|Sunrise 7:47AM||Sunset 4:57PM||Friday January 19, 2018 3:31 AM PST (11:31 UTC)||Moonrise 9:18AM||Moonset 7:46PM||Illumination 7%|
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|PZZ135 Puget Sound And Hood Canal- 232 Am Pst Fri Jan 19 2018 |
.small craft advisory in effect through late tonight...
Today..S wind 15 to 25 kt. Wind waves 2 to 4 ft. A chance of showers in the morning then showers likely in the afternoon.
Tonight..S wind 15 to 25 kt. Wind waves 2 to 4 ft. Showers in the evening then a chance of showers after midnight.
Sat..S wind 15 to 25 kt easing to 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft. A chance of showers.
Sat night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Sun..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Sun night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Mon..S wind 15 to 25 kt easing to 5 to 15 kt. Wind waves 2 to 4 ft subsiding to 2 ft or less.
Tue..SE wind 5 to 15 kt. Wind waves 2 ft or less.
|PZZ100 232 Am Pst Fri Jan 19 2018 |
Synopsis for the northern and central washington coastal and inland waters..A deep low centered near 50n 131w will fill as it moves into central british columbia this evening. Pressure gradients will remain rather tight through tonight and will result in small craft advisory conditions across the waters. Seas over the coastal waters will slowly subside through tonight. A strong front will move through the waters Saturday night and early Sunday. The active weather pattern will continue through the upcoming week.
7 Day Forecast for Marine Location Near Lacey, WAHourly EDIT Help
Area Discussion for - Seattle, WA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksew 191057|
area forecast discussion
national weather service seattle wa
257 am pst Fri jan 19 2018
Synopsis An upper trough over the region will maintain cool
and showery pattern today. Snow showers above 2,000 feet could
produce a few inches of snow in the passes. A stronger and wetter
front will bring more rain, mountain snow and windy conditions
late Saturday night and Sunday. Additional fronts will will keep
the weather active through next week with temperatures trending
Short term The strong pacific system that generated large
swells yesterday has now weakened offshore. Central pressure is
around 988 mb. This system will continue to fill weaken today as
it moves inland through the queen charlotte sound. Seas will
continue to subside and will fall below 20 feet during the
morning hours. A high surf advisory remains in effect until noon
pst today for the pacific beaches.
Across western washington, moist and unstable SW flow continues
for mainly scattered showers. Showers will increase in coverage
this afternoon and evening as a trough axis moves inland. The
cooler air mass will knock snow levels down to around 2,000 ft in
the mountains with generally 1-5 inches of snow expected.
Temperatures will trend close to normal across the lowlands.
Showers will decrease on Saturday, mainly in the interior, as a
weak upper level ridge moves inland. The mountains will continue
to see showers with westerly flow aloft.
A wetter pac system will bring more rain and wind Saturday night
and Sunday. Pressure gradients tighten with strong S SE flow
along the coast and north interior - high winds are possible.
Snow levels remain low in the mountains with heavier snow
expected, including the passes. The weather will remain cool and
showery through Monday with moist westerly flow aloft. 33
Long term The weather will remain unsettled through next week
as a series of fronts track through the pac nw. There's little
break in the action. Late in the week, models show a cool upper
level trough overhead with heights in the 530s. This keeps snow
levels low, near 500-1000 ft. It's possible we could see rain snow
showers on the higher hills. However, with southerly onshore flow
snow amounts look spotty and light. 33
Aviation A deep low pressure system centered near 50n 131w
will slowly fill as it moves eastward today then onto the central
british columbia coast tonight. A cool, moist, and unstable air
mass rotating around this low will give showers to the area today.
Showers will increase later this afternoon and tonight as the
upper level trough associated with the offshore low moves onshore.
Strong southwest flow aloft will weaken and turn westerly this
evening as the upper trough passes.
Conditions are generallyVFR across the region with pockets of
MVFR ceilings in showers. ExpectVFR conditions with MVFR
conditions at times around showers to continue through the day
today. Conditions will deteriorate to lower end MVFR later this
afternoon and tonight as the upper level trough offshore pushes
inland. The 12z terminal forecasts will generally be extensions of|
the previous forecast. Albrecht
ksea... MainlyVFR conditions with showers at times for much of
today. Conditions will deteriorate to low end MVFR later this
afternoon through tonight with an increase in shower activity.
Winds will be south 10-14 knots through this afternoon then will
increase to 13 to 17 knots with gusts to 27 knots after about 00z
this afternoon as the upper level trough moves through. Albrecht
Marine A deep low near 50n 131w will fill as it moves onto the
central british columbia this evening. Scatterometer data from a
polar orbiting satellite shows near a broad expanse of 25 to 35
knot winds to the south of this old low continuing offshore. Small
craft advisory winds and hazardous coastal seas will continue
through tonight as a trough and the system's wind field push
inland this afternoon through tonight.
Another strong front offshore will move into the offshore waters
Saturday night and push inland Sunday morning. Models show the
strongest winds with this front just to the south of the forecast
area, but gales can be expected over the coastal waters, and
possibly the entrances to the strait of juan de fuca and the
northern inland waters ahead of the front. At this time will issue
a gale watch for Saturday afternoon through Sunday morning for
the coastal waters. The watch will likely need to be expanded
eastward with the next forecast.
An active weather pattern with several strong fronts will continue
during the upcoming week. Albrecht
Hydrology River flooding is not expected for the next 7 days.
Sew watches warnings advisories
Wa... High surf advisory until noon pst today for central coast-north
Pz... Gale watch from Saturday afternoon through Sunday morning for
coastal waters from CAPE flattery to james island 10 to 60
nm-coastal waters from CAPE flattery to james island out 10
nm-coastal waters from james island to point grenville 10
to 60 nm-coastal waters from james island to point
grenville out 10 nm-coastal waters from point grenville to
cape shoalwater 10 to 60 nm-coastal waters from point
grenville to CAPE shoalwater out 10 nm.
Small craft advisory until 6 am pst Saturday for coastal waters
from CAPE flattery to james island 10 to 60 nm-coastal
waters from CAPE flattery to james island out 10 nm-coastal
waters from james island to point grenville 10 to 60 nm-
coastal waters from james island to point grenville out 10
nm-coastal waters from point grenville to CAPE shoalwater
10 to 60 nm-coastal waters from point grenville to cape
shoalwater out 10 nm-east entrance u.S. Waters strait of
juan de fuca-northern inland waters including the san juan
islands-puget sound and hood canal-west entrance u.S.
Waters strait of juan de fuca.
Small craft advisory for rough bar until 6 am pst Saturday for
grays harbor bar.
Small craft advisory until midnight pst tonight for admiralty
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|
|TCNW1 - 9446484 - Tacoma, WA||26 mi||44 min||39°F||49°F||1010.8 hPa|
|TCMW1 - 9446482 - Tacoma Met, WA||26 mi||44 min||SSE 4.1 G 4.1|
|EBSW1 - 9447130 - Seattle, WA||46 mi||44 min||SE 5.1 G 6||43°F||48°F||1010.5 hPa|
|WPOW1 - West Point, WA||48 mi||32 min||SSE 15 G 16||44°F||1010 hPa (+0.0)||38°F|
Wind History for Tacoma MET, WA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Olympia, Olympia Airport, WA||7 mi||38 min||S 11||10.00 mi||A Few Clouds||41°F||37°F||89%||1010.2 hPa|
|Fort Lewis / Gray U. S. Army Airfield, WA||12 mi||94 min||SE 7||10.00 mi||Partly Cloudy||38°F||37°F||99%||1010.3 hPa|
|Tacoma / McChord Air Force Base, WA||19 mi||94 min||S 3||10.00 mi||Overcast||35°F||34°F||100%||1010.7 hPa|
|Tacoma, Tacoma Narrows Airport, WA||20 mi||39 min||S 6||10.00 mi||Mostly Cloudy||41°F||37°F||86%||1010.3 hPa|
|Shelton, Shelton Sanderson Field, WA||24 mi||39 min||N 0||10.00 mi||Overcast||38°F||37°F||100%||1009.4 hPa|
Wind History from OLM (wind in knots)
|1 day ago||Calm||Calm||Calm||Calm||Calm||Calm||NE||Calm||Calm||Calm||W||S||S||S||SE||S||S||S||S||S|
|2 days ago||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
Fri -- 12:45 AM PST -0.83 feet Low Tide
Fri -- 07:46 AM PST 15.71 feet High Tide
Fri -- 07:50 AM PST Sunrise
Fri -- 09:18 AM PST Moonrise
Fri -- 01:44 PM PST 6.98 feet Low Tide
Fri -- 04:55 PM PST Sunset
Fri -- 06:26 PM PST 12.66 feet High Tide
Fri -- 07:46 PM PST Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Nisqually Reach |
Click for Map
Fri -- 01:33 AM PST 0.00 knots Slack
Fri -- 04:37 AM PST 1.34 knots Max Flood
Fri -- 07:49 AM PST Sunrise
Fri -- 08:04 AM PST -0.01 knots Slack
Fri -- 09:17 AM PST Moonrise
Fri -- 11:22 AM PST -0.91 knots Max Ebb
Fri -- 02:25 PM PST 0.01 knots Slack
Fri -- 04:38 PM PST 0.65 knots Max Flood
Fri -- 04:54 PM PST Sunset
Fri -- 06:41 PM PST -0.01 knots Slack
Fri -- 07:45 PM PST Moonset
Fri -- 10:39 PM PST -1.39 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of PacificNorthwest EDIT
Wind Forecast for Seattle, WA (6,6,7,8)(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.