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 5:24AM||Sunset 9:07PM||Tuesday June 27, 2017 11:57 PM PDT (06:57 UTC)||Moonrise 8:48AM||Moonset 10:57PM||Illumination 18%|
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|PZZ250 Coastal Waters From Cape Shoalwater Wa To Cascade Head Or Out 10 Nm- Waters From Cape Shoalwater Wa To Cascade Head Or From 10 To 60 Nm- 841 Pm Pdt Tue Jun 27 2017 |
Tonight..NW wind 10 to 15 kt with gusts to 20 kt. Wind waves nw 4 ft at 5 seconds. NW swell 7 ft at 8 seconds.
Wed..NW wind 10 to 15 kt with gusts to 20 kt. Wind waves nw 4 ft at 4 seconds. NW swell 7 ft at 8 seconds.
Wed night..NW wind 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves nw 3 ft at 5 seconds. NW swell 5 ft at 8 seconds.
Thu..NW wind 10 to 15 kt, easing to 5 to 10 kt in the afternoon. Wind waves nw 2 ft at 4 seconds. W swell 5 ft at 10 seconds.
Thu night..NW wind 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves nw 3 ft at 5 seconds. W swell 5 ft at 9 seconds.
Fri..NW wind 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft. W swell 3 ft.
Fri night..NW wind 10 to 15 kt. Wind waves 3 ft. W swell 4 ft.
Sat..NW wind 5 to 10 kt. Wind waves 2 ft. W swell 5 ft.
Sun..N wind 15 to 20 kt. Wind waves 4 ft. W swell 4 ft.
|PZZ200 841 Pm Pdt Tue Jun 27 2017 |
Synopsis for southern washington and northern oregon coast.. High pressure persists over the ne pacific through the weekend as a thermal low remains over northern california. Surface high pressure increases a little on Sunday for a stronger north surface pressure gradient. The seas near shore (0 to 5 nm) will likely be choppy Wednesday morning with the strong ebb.
7 Day Forecast for Marine Location Near Manzanita, ORHourly EDIT Help
Area Discussion for - Portland, OR  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 kpqr 280414|
area forecast discussion
national weather service portland or
914 pm pdt Tue jun 27 2017
Synopsis Dry, onshore flow continues through the forecast period.
An upper ridge will traverse the area Thursday and Friday, bringing
less morning low clouds and slightly warmer afternoon temperatures.
Otherwise, the seasonable pattern of morning clouds and afternoon sun
continues through the weekend.
Short term Tonight through Saturday... Forecast appears to be in
good shape, with classic summertime weather expected for the next
week across the pacific northwest. Only minor changes were made with
the evening update, mainly to allow for a bit more morning low
cloudiness Wed Thu mornings.
An upper ridge near 135w keeps northwest flow over the region through
Wednesday. A weak but dry shortwave in the northwest flow moves over
the area early tomorrow, so expecting another robust marine layer in
the morning. Model soundings suggest a robust marine layer about
3000-4000 ft deep around 12z wed, which should allow stratus to push
all the way to near the cascade crest. Coastal areas may see some
spotty drizzle due to the deep onshore flow. Clouds will be slow to
clear, but eventually most of the forecast area should break into a
mostly sunny afternoon with seasonable temps in the 70s inland
valleys and 60s along the coast.
The upper ridge will move closer to shore later Wednesday and
Thursday, then traverse western or wa Friday morning. While offshore
flow never develops, the upper ridging should compress the marine
layer to 1500-2000 ft Wed night Thu morning. This should lead to a
less extensive marine push, with any morning clouds likely quicker to
burn off Thu morning. As a result of this and 850 mb temps warming to
around +14 to +15 deg c, temps should warm up 5-10 degrees
inland... With highs in the lower to mid 80s in the valleys. Even less
stratus is expected Friday morning as the upper ridge axis moves
across the pac nw. However, flow remains onshore, so temps should be
similar or just slightly warmer Friday.
Saturday sees the ridge flatten and move eastward, bringing a benign
westerly flow and thickening marine layer, for morning clouds
followed by afternoon sun. Weagle drb
Long term Saturday night through Tuesday... Westerly flow continues
through the extended period. A couple of embedded, low amplitude
ridge trough systems pass mostly to the north of area, with GFS gefs|
timing favoring weak shortwaves late Saturday and again on Monday.
The main result will be a thickening marine layer over the weekend
and particularly on Monday. Depending on the strength of these
shortwaves, some drizzle very light precipitation along coastal zones
is not out of the question. That said, the odds favor a dry forecast
with many dry ensemble members through the period. Temperatures
should be close to seasonal normals this weekend, and near or
slightly below normal early next week. Drb
Aviation Cigs may lower to below 1000 feet along the coast
tonight. A shortwave upper trough moving over the area tonight
will maintain a deep marine layer and expect coastal MVFR stratus
to move inland into the willamette valley and cascade foothills
early Wednesday morning (~12z). Inland areas should clear toVFR
Kpdx and approaches... Marine stratus will return MVFR CIGS very
early Wednesday morning (11-13z), and clear toVFR Wednesday
afternoon. ~bowen tj
Marine A persistent surface pressure pattern with high
pressure over the NE pacific and a thermal low in northern ca
will result in little changes to the overall marine weather
through the weekend. N-nw winds will mostly remain below 25 kt,
although there will be a few gusts around 25 kt in the waters
beyond 20 nm this evening. The next chance for winds of that
strength will be when surface high pressure increases a tad on
Sunday and the north winds will likely strengthen to 25 kt,
especially south of cascade head.
A combination of wind wave and fresh swell will create choppy
seas with heights 5 to 8 feet and dominant periods around 8
seconds today and Wednesday. A strong ebb Wednesday morning may
steepen the seas nearshore (0-5 nm) a few hours around the 845 am
ebb. A weak low moving across the gulf of alaska Wednesday night
and Thursday will increase wave periods to around 10-11 seconds
beginning early Thursday. ~bowen tj
Pqr watches warnings advisories
Pz... Small craft advisory for rough columbia river bar from 8 am to
11 am pdt Wednesday.
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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|
|TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR||10 mi||46 min||60°F||1017.7 hPa|
|46096||34 mi||148 min||NW 7.8 G 9.7||53°F||60°F||1017.3 hPa|
|ASTO3 - 9439040 - Astoria, OR||36 mi||46 min||WNW 4.1 G 7||59°F||66°F||1016.9 hPa|
|46243 - Clatsop Spit, OR - 162||37 mi||58 min||58°F||7 ft|
|46029 - COL RIVER BAR - 20NM West of Columbia River Mouth||42 mi||68 min||NNW 12 G 18||58°F||60°F||6 ft||1017.6 hPa (+0.4)||52°F|
|46T29||45 mi||38 min||NW 14 G 21||58°F||61°F||1018.3 hPa||53°F|
|46248 - Astoria Canyon, OR (179)||48 mi||58 min||61°F||7 ft|
Wind History for Garibaldi, OR(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Tillamook, Tillamook Airport, OR||21 mi||83 min||N 0||10.00 mi||Overcast||59°F||50°F||72%||1018.3 hPa|
Wind History from TMK (wind in knots)
|1 day ago||SE||W||SW||Calm||Calm||Calm||Calm||Calm||Calm||Calm||SW||W||SW||W||W||W||W||W||W||SW||W||W||SW||Calm|
|2 days ago||SE||SE||SE||SE||Calm||E||Calm||Calm||Calm||Calm||W||SW||W||W||W||W||W||W||W||W||SW||S||S||SW |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Wed -- 03:53 AM PDT 7.65 feet High Tide
Wed -- 05:28 AM PDT Sunrise
Wed -- 10:44 AM PDT -0.87 feet Low Tide
Wed -- 10:57 AM PDT Moonrise
Wed -- 05:27 PM PDT 7.21 feet High Tide
Wed -- 09:09 PM PDT Sunset
Wed -- 11:15 PM PDT 2.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
Click for Map
Wed -- 03:41 AM PDT 7.31 feet High Tide
Wed -- 05:29 AM PDT Sunrise
Wed -- 10:44 AM PDT -0.84 feet Low Tide
Wed -- 10:58 AM PDT Moonrise
Wed -- 05:16 PM PDT 6.87 feet High Tide
Wed -- 09:08 PM PDT Sunset
Wed -- 11:14 PM PDT 2.04 feet Low Tide
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 Portland, OR (2,6,7,8)(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.