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 7:31AM||Sunset 6:17PM||Tuesday October 17, 2017 1:33 PM PDT (20:33 UTC)||Moonrise 4:02AM||Moonset 4:48PM||Illumination 7%|
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|PZZ135 Puget Sound And Hood Canal- 847 Am Pdt Tue Oct 17 2017 |
.small craft advisory in effect until 5 pm pdt this afternoon...
Today..S wind 20 to 30 kt. Wind becoming sw 15 to 25 kt S part and nw 10 to 20 kt N part in the afternoon. Wind waves 2 to 5 ft. Rain in the morning then rain likely in the afternoon.
Tonight..Variable wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Wed..S wind 10 to 20 kt rising to 20 to 30 kt in the afternoon. Wind waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Rain.
Wed night..S wind 15 to 25 kt easing to 10 to 20 kt after midnight. Wind waves 2 to 4 ft.
Thu..S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Thu night..S wind 15 to 25 kt. Wind waves 2 to 4 ft.
Fri..SW wind 5 to 15 kt. Wind waves 2 ft or less.
Sat..S wind 5 to 15 kt. Wind waves 2 ft or less.
|PZZ100 847 Am Pdt Tue Oct 17 2017 |
Synopsis for the northern and central washington coastal and inland waters..A front will continue to move inland today with strong onshore flow over the region. A stronger frontal system will affect the area on Wednesday with gales expected over most waters. Onshore flow will prevail Thursday and Friday with swells reaching 20 feet. A third strong frontal system will reach the area Saturday.
7 Day Forecast for Marine Location Near Dash Point, WAHourly EDIT Help
Area Discussion for - Seattle, WA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksew 171830|
area forecast discussion
national weather service seattle wa
1130 am pdt Tue oct 17 2017
Synopsis A cold front moving through the area this morning will
drop southeast of the area this afternoon. After a few hours of
moderate to heavy rain and windy conditions, expect a lull later
this afternoon through tonight. A strong warm front on Wednesday
will more widespread heavy rain, along with stronger wind. A cold
front on Thursday will push the heavy rain out of the area, but it
will be followed by numerous showers on Thursday and Friday.
Another strong front will pass across the pacific northwest on
Saturday and Saturday night.
Short term Observations, radar and satellite all show a "garden
variety" frontal system moving southeast across the area bringing
brief heavy rain and windy conditions. Peak wind gusts around
40-45 mph has been sufficient to give local power outages in
portions of the northern interior. Winds will shift to the
northwest and die down behind the front.
Conditions will dry out behind the front and showers will rapidly
be confined to the west slopes of the cascades by this afternoon
and this evening. Tonight will be generally be dry with lighter
wind and seasonably cool conditions.
12z models bring rain with an incoming warm front into the area by
8 am Wednesday. The front will stall over the area then drop
southeast through the area late Wednesday night and Monday
morning. The incoming model solutions continue the more
progressive nature of the front. So while the front has a tap to
tropical moisture from the western pacific, the period of heavy
rainfall in the mountains will be limited to about 24 hours. We
still expect quite a bit of rain with 5-8 inch totals in the
olympics, 3-6 inches in the north cascades, 2-4 inches in the
central cascades, and 1-3 inches in the interior lowlands.
Southwesterly 850 mb winds around 60 kt will interact with the
terrain to give rather strong wind gusts to the coastal zones and
the interior from the greater puget sound region northward.
Strongest winds on the coast and in the north will be late morning
through mid afternoon with winds stronger in the greater seattle
area during the late afternoon and early evening hours. A high
wind watch is in effect for the coastal zones and the north
interior from everett northward for wind gusts on the order of 50
mph on hills and near the coastline. 40-45 mph gusts are expected
in portions of the seattle area. Local power outages can be
expected as trees get pruned of their dead branches.
A cold front will cross western washington on Thursday morning,
causing heavy rain to taper to numerous showers. Snow levels will
fall to 3500-4500 feet from Thursday night through Friday evening.
Should be enough instability in the post-frontal air mass for a
few thunderstorms along the coast and over the coastal waters on
Thursday and Thursday night. Albrecht
Long term From the previous long term discussion: a broad
upper trough axis with plenty of cold air aloft will cross western
washington Friday, supporting numerous showers and snow levels of
Showers should diminish on Friday night, then another strong warm
front will cross the area on Saturday. Strong southeast gradients
will again bring strong wind to southeast-wind prone locations
such as the coast and north interior. More heavy rain.
A flat but strong upper ridge will start to nudge into the pac nw
on Sunday and Monday, pushing the wet and windy storm track closer
to and north of the canadian border. Haner
Aviation A strong front will continue moving inland today for
rain and windy conditions. The flow aloft is westerly with mainly
MVFR to ifr conditions. Most areas will see W SW gusts to
20-30kt. This front will be quick moving with rain tapering off
after 21z this afternoon and mainly affecting the cascades. There
will be a lull in the weather tonight then another round of windy
and wet weather on Wednesday as another strong pacific system
moves inland. The coast and north interior will again see gusty s
winds to 35-45 kt. 33|
ksea... Rain, MVFR ceilings and S winds gusting to 25-30kt this
morning. Precip and winds tapering off and easing after 21z.VFR
conditions expected overnight. 33
Marine Strong onshore flow across western washington today will
bring gales to the strait of juan de fuca and small craft advisory
winds over all remaining waters. Winds will ease tonight for a
brief lull. Expect another round of gales on Wednesday as a
second, strong pacific system impacts the region. Strong onshore
flow will continue through Thursday with seas building to 20-24
feet. A third vigorous storm system will reach the area on
Hydrology From the previous hydrology discussion: tdoay's
front is not expected to produce flooding.
Main focus of this discussion is from Wednesday through Thursday
morning. During this time, 30-hour rainfall totals ending late
Thursday morning will go something like this: 5-8 inches olympics,
3-6 inches north cascades, 2-4 inches central cascades, and
1-2.5" along the i-5 corridor. With today's rain priming the pump
a bit, that much rain could easily bringing the flood-prone skokomish
river to its first flood of the season. Heaviest rain over the
olympic mtns will come in an intense burst on Wednesday
afternoon evening. So the skokomish should be rising quickly on
Wednesday evening and overnight. Will soon be hoisting a flood
watch for mason county to cover this possibility.
Next time period to watch will be late Saturday and Saturday
night. Heavy rain will cause rises on area rivers, with flooding
possible on the skokomish. Haner
Sew watches warnings advisories
Wa... Flood watch from Wednesday afternoon through Thursday morning
for hood canal area-lower chehalis valley area-olympics.
High wind watch from Wednesday morning through Wednesday evening
for admiralty inlet area-everett and vicinity-san juan
county-western skagit county-western whatcom county.
High wind watch from Wednesday morning through Wednesday evening
for central coast-north coast.
Pz... Small craft advisory for rough bar until 11 pm pdt this evening
for grays harbor bar.
Small craft advisory until 5 pm pdt this afternoon for admiralty
inlet-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-puget
sound and hood canal-west entrance u.S. Waters strait of
juan de fuca.
Gale warning from 5 am to 8 pm pdt Wednesday 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 from 6 pm this evening to midnight pdt
tonight for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.
Gale warning until 6 pm pdt this evening for central u.S. Waters
strait of juan de fuca-east entrance u.S. Waters strait of
juan de fuca.
Gale warning from 6 am to 6 pm pdt Wednesday for east entrance
u.S. Waters strait of juan de fuca-northern inland waters
including the san juan islands.
Small craft advisory until 11 pm pdt this evening for northern
inland waters including the san juan islands.
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||5 mi||51 min||58°F||55°F||1017.9 hPa|
|TCMW1 - 9446482 - Tacoma Met, WA||5 mi||45 min||SW 13 G 19|
|EBSW1 - 9447130 - Seattle, WA||18 mi||45 min||E 4.1 G 6||54°F||54°F||1017.7 hPa|
|WPOW1 - West Point, WA||22 mi||33 min||E 6 G 8||53°F||1017.7 hPa (+3.8)||50°F|
|46120||29 mi||35 min||SSE 5.8||54°F||1016.8 hPa||47°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
|Seattle, Seattle-Tacoma International Airport, WA||8 mi||40 min||SW 11||10.00 mi||Mostly Cloudy||56°F||48°F||77%||1018.3 hPa|
|Tacoma, Tacoma Narrows Airport, WA||11 mi||40 min||SSW 12 G 21||10.00 mi||Partly Cloudy||56°F||46°F||72%||1017.9 hPa|
|Tacoma / McChord Air Force Base, WA||13 mi||95 min||SSW 15||10.00 mi||Overcast||54°F||53°F||100%||1018 hPa|
|Boeing Field - King County International Airport, WA||14 mi||40 min||Var 4||10.00 mi||Overcast||55°F||48°F||80%||1017.7 hPa|
|Renton Municipal Airport, WA||14 mi||40 min||S 8 G 15||10.00 mi||Mostly Cloudy||59°F||52°F||78%||1018.1 hPa|
|Pierce County-Thun Field, WA||17 mi||58 min||Var 6 G 12||10.00 mi||Overcast||54°F||53°F||100%||1018.6 hPa|
|Fort Lewis / Gray U. S. Army Airfield, WA||20 mi||95 min||SSE 14||10.00 mi||Overcast||53°F||53°F||100%||1018 hPa|
|Bremerton, Bremerton National Airport, WA||22 mi||37 min||SSE 6||10.00 mi||Mostly Cloudy||59°F||51°F||75%||1018.9 hPa|
Wind History from SEA (wind in knots)
|1 day ago||W||NW||W||W||W||NW||N||N||NE||Calm||SE||SE||SE||SE||Calm||E||Calm||SE||S||S||S||S||S|
|2 days ago||S||S||S||SE||SE||SE||SE||E||E||Calm||E||Calm||Calm||N||E||Calm||N||N||NE||N||N||NE||N||NE |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Des Moines |
Click for Map
Tue -- 03:58 AM PDT 10.03 feet High Tide
Tue -- 05:01 AM PDT Moonrise
Tue -- 07:31 AM PDT Sunrise
Tue -- 09:59 AM PDT 2.12 feet Low Tide
Tue -- 04:24 PM PDT 11.92 feet High Tide
Tue -- 05:48 PM PDT Moonset
Tue -- 06:16 PM PDT Sunset
Tue -- 10:46 PM PDT 2.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|The Narrows |
Click for Map
Tue -- 01:22 AM PDT 2.91 knots Max Flood
Tue -- 04:34 AM PDT -0.01 knots Slack
Tue -- 05:02 AM PDT Moonrise
Tue -- 07:32 AM PDT Sunrise
Tue -- 08:28 AM PDT -4.39 knots Max Ebb
Tue -- 10:53 AM PDT 0.00 knots Slack
Tue -- 01:45 PM PDT 3.65 knots Max Flood
Tue -- 05:10 PM PDT -0.00 knots Slack
Tue -- 05:49 PM PDT Moonset
Tue -- 06:17 PM PDT Sunset
Tue -- 09:02 PM PDT -4.86 knots Max Ebb
Tue -- 11:29 PM PDT 0.00 knots Slack
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 (16,3,4,5)(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.