Tuesday, September26, 2017 L-36.com

Marine Weather and Tides
Nehalem, OR

Version 3.4
What's New / NOTES
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 7:04AMSunset 7:01PM Tuesday September 26, 2017 7:35 AM PDT (14:35 UTC) Moonrise 12:32PMMoonset 10:06PM Illumination 34% Phase: Waxing Crescent; Moon at 6 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ250 Coastal Waters From Cape Shoalwater Wa To Cascade Head Or Out 10 Nm- 248 Am Pdt Tue Sep 26 2017
Today..NE wind to 5 kt, becoming N in the morning, then rising to 10 to 15 kt with gusts to 20 kt in the afternoon. Wind waves N 2 ft at 4 seconds. W swell 5 ft at 10 seconds.
Tonight..N wind 10 to 15 kt with gusts to 20 kt, becoming ne 5 to 10 kt with gusts to 15 kt after midnight. Wind waves N 2 ft at 4 seconds. W swell 4 ft at 10 seconds.
Wed..NE wind 5 to 10 kt. Gusts to 15 kt in the morning. Wind waves ne 2 ft at 4 seconds. W swell 4 ft at 10 seconds.
Wed night..E wind 5 to 10 kt. Wind waves ne 2 ft at 4 seconds. W swell 4 ft at 9 seconds.
Thu..E wind 5 to 10 kt, veering to S in the afternoon. Wind waves E 2 ft at 4 seconds, shifting to the S 1 ft at 4 seconds in the afternoon. W swell 4 ft at 11 seconds.
Thu night..S wind 5 to 10 kt, rising to 10 to 15 kt after midnight. Wind waves S 2 ft at 4 seconds. W swell 4 ft at 10 seconds. Patchy fog.
Fri..SW wind 5 to 10 kt. Wind waves 2 ft. W swell 6 ft.
Sat..W wind 10 kt. Wind waves 2 ft. W swell 7 ft.
PZZ200 248 Am Pdt Tue Sep 26 2017
Synopsis for southern washington and northern oregon coast.. High pressure will build across the waters for most of the week. Thermal low pressure will develop off the southern oregon coast Tuesday evening through Wednesday for a short round of gusty northerlies.

7 Day Forecast for Marine Location Near Nehalem, OR
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location: 45.72, -123.88     debug

Area Discussion for - Portland, OR
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Fxus66 kpqr 261034
area forecast discussion
national weather service portland or
333 am pdt Tue sep 26 2017

Synopsis High pressure will build into eastern washington and
oregon resulting in offshore flow and warmer temps through Thursday.

The next chance for rain comes around Friday, as a weakening cold
front moves into the pac nw. Showers and cooler temperatures will
probably linger into the weekend.

Short term Today through Thursday... Krtx radar is presently down
due to a mechanical failure it is unknown at this time when it will
return to service. Fortunately fair weather will be with us for the
next several days as high pressure aloft builds over the pacnw.

Surface high pressure will increase east of the cascades, inducing
offshore flow and a trough along the coast today and tonight. The
trough weakens Wed but the offshore flow continues. The warmest days
will be Wed and Thu with inland and coastal temperatures above
seasonal normals. Coastal areas should approach 80 degrees
wed and a few degrees cooler Thu while the interior lowland will
likely have MAX temperatures in the low 80s.

Models show thermal low pressure lingering near the oregon coast wed
night thu, while easterly flow aloft turns more southerly. This
should help induce a southerly wind reversal along the coast, likely
bringing areas of fog and low clouds back to coastal areas. With this
wind reversal and an approaching pacific cold front, expect the
marine layer to deepen a bit late Thu thu night... Perhaps enough to
bring some low clouds into the inland valleys by Friday morning.

Mh weagle

Long term Thursday night through Monday... Southwesterly flow
across the region Thursday night and Friday as an upper trough
advances through the forecast area. Forecast models in general
agreement with a weakening front pushing across the area. Boosted
pops even further as 00z models are in better agreement for late in
the week and weekend with a cool trough transiting the region sat.

After the weekend however, models then diverge a bit for the first
half of next week, so have maintained some low end pop chances for
the start of next week in a nod to the ECMWF solution which provides
for a deeper upper trough with more moisture (compared to the drier
gfs solution). Expect that temperatures will trend back to slightly
below seasonal normals for the weekend through early next week. Mh

Aviation MVFR CIGS are locked in at kast this morning and
should remain there while konp continues to bounce betweenVFR
and ifr. While the stratus will likely stay offshore, the valley
fog stratus may continue to impact the terminal periodically.

3500 to 4000 foot CIGS which built westward off the cascades last
evening have started to break up as winds aloft switch from
north winds to east winds. Expect these inland CIGS to remain
vfr. The only exception is khio where ceilings are occasionally
dipping below 3000 feet, but these clouds are transient and
conditions will likely return toVFR soon.

Kpdx and approaches...VFR conditions expected through the period.


Marine Issued a short duration small craft advisory for winds
for all waters except for the northern inner waters with varying
start and end times. Small craft winds will start by pushing up
the coast this evening and by Wednesday morning will be relegated
to the outer waters as the thermal trough builds north and winds
turn offshore. Winds will remain light through the remainder of
the week and into the weekend. Towards the end of next weekend
and the beginning of next week there is still considerable model
uncertainty with the ECMWF indicating gusty southerlies ahead of
the next system to move through the area while the GFS continues
the northerlies.

Seas will remain small through the week until later in the
weekend when either a system moving in or persistent gusty north
winds will bring increasing seas across our waters. Bentley

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds from 8 pm this evening to 2 am
pdt Wednesday for waters from CAPE shoalwater wa to
cascade head or from 10 to 60 nm.

Small craft advisory for winds from 5 pm this afternoon to 8 am
pdt Wednesday for waters from cascade head to florence or
from 10 to 60 nm.

Small craft advisory for winds from 5 pm this afternoon to 11
pm pdt this evening for coastal waters from cascade head
to florence or out 10 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 12 mi47 min 57°F1020.5 hPa
46096 34 mi125 min NNE 1.9 G 1.9 53°F 58°F1020.6 hPa
ASTO3 - 9439040 - Astoria, OR 34 mi47 min NNE 2.9 G 5.1 61°F 65°F1020.2 hPa
46243 - Clatsop Spit, OR - 162 37 mi35 min 59°F6 ft
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 43 mi45 min E 1.9 G 3.9 58°F 57°F6 ft1020.8 hPa (+0.7)58°F
46T29 47 mi35 min ESE 3.9 G 5.8 58°F 59°F6 ft1021.3 hPa (+0.6)58°F
46248 - Astoria Canyon, OR (179) 49 mi40 min 59°F6 ft

Wind History for Garibaldi, OR
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Tillamook, Tillamook Airport, OR21 mi40 minSSE 30.50 miFog54°F53°F100%1020.7 hPa

Wind History from TMK (wind in knots)
Last 24hrCalmCalmCalmCalmCalmNW3CalmW4W6W5W3SW3SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSE3
1 day agoCalmCalmCalmCalmSW3NW4CalmNW9SW5SW5CalmSW3CalmCalmCalmCalmS3CalmCalmCalmCalmCalmCalmSE3
2 days agoCalmCalmCalmCalmW3CalmNW5W7W7NW5SW4CalmE3CalmCalmS3CalmCalmSE3CalmSE4CalmCalmCalm

Tide / Current Tables for Nehalem, Nehalem River, Oregon
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Tue -- 12:14 AM PDT     0.69 feet Low Tide
Tue -- 06:09 AM PDT     5.23 feet High Tide
Tue -- 07:07 AM PDT     Sunrise
Tue -- 12:03 PM PDT     2.30 feet Low Tide
Tue -- 01:31 PM PDT     Moonrise
Tue -- 05:24 PM PDT     6.12 feet High Tide
Tue -- 07:04 PM PDT     Sunset
Tue -- 11:06 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Garibaldi, Oregon
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Tue -- 06:07 AM PDT     5.66 feet High Tide
Tue -- 07:08 AM PDT     Sunrise
Tue -- 11:35 AM PDT     2.75 feet Low Tide
Tue -- 01:31 PM PDT     Moonrise
Tue -- 05:35 PM PDT     6.61 feet High Tide
Tue -- 07:04 PM PDT     Sunset
Tue -- 11:06 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of PacificNorthwest    EDIT

Wind Forecast for Portland, OR (10,2,3,4)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.