Friday, November16, 2018 L-36.com


Marine Weather and Tides
Cannon Beach, OR

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:12AMSunset 4:42PM Friday November 16, 2018 5:28 AM PST (13:28 UTC) Moonrise 2:06PMMoonset 12:00AM Illumination 60% Phase: Waxing Gibbous; Moon at 8 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- Waters From Cape Shoalwater Wa To Cascade Head Or From 10 To 60 Nm- 258 Am Pst Fri Nov 16 2018
Today..NW wind 5 to 10 kt, rising to 10 to 15 kt in the afternoon. Wind waves N 2 ft at 4 seconds. W swell 7 ft at 12 seconds.
Tonight..NE wind 10 to 15 kt. Gusts to 20 kt after midnight. Wind waves ne 3 ft at 4 seconds. W swell 6 ft at 11 seconds.
Sat..NE wind 15 to 20 kt. Wind waves ne 3 ft at 5 seconds. W swell 7 ft at 13 seconds.
Sat night..E wind 15 to 20 kt. Wind waves E 3 ft at 5 seconds. W swell 7 ft at 14 seconds.
Sun..E wind 10 to 15 kt. Gusts to 20 kt in the morning. Wind waves E 2 ft at 5 seconds. W swell 5 ft at 13 seconds.
Sun night..SE wind 5 to 10 kt. Wind waves se 2 ft at 4 seconds. W swell 5 ft at 12 seconds.
Mon..S wind 5 to 10 kt. Wind waves 2 ft. W swell 4 ft.
Tue..SE wind 15 to 20 kt. Wind waves 5 ft. W swell 5 ft.
PZZ200 258 Am Pst Fri Nov 16 2018
Synopsis for the southern washington and northern oregon coast.. High pressure will strengthen over the pac nw Fri, then shift east of the cascades Fri night and Sat, allowing increasing offshore flow for the weekend.


7 Day Forecast for Marine Location Near Cannon Beach, OR
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location: 45.83, -123.94     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 161052
afdpqr
area forecast discussion
national weather service portland or
252 am pst Fri nov 16 2018

Synopsis A weak disturbance will move over east washington today
for a slight chance of rain across southwest washington. High
pressure strengthens tonight for developing east winds. The east
winds will strengthen Saturday and be very windy at the west end of
the columbia gorge. East winds become more shallow Sunday, but
continue through Tuesday. Rain is expected to return to the area
Tuesday night or Wednesday.

Short term Today through Monday... Water vapor imagery shows a
sharp upper level ridge over NE pacific with an upper level
shortwave trough moving south along the eastern flank of the ridge
over british columbia. This shortwave trough has increased
atmospheric mixing across SW washington this morning for raising
cloud ceilings and fog reduction. However, south of the columbia
river, stable air continues and many weather stations are reporting
low clouds and fog. Radar imagery shows light rain moving across ne
washington ahead of the disturbance. There is a slight chance that
these showers could dip south into SW washington today as the upper
wave continues on its southward trek. High pressure builds inland
this afternoon behind the disturbance and n-ne winds will develop and
help clear any remaining fog and low clouds.

East winds will strengthen tonight and Saturday as the upper ridge
axis moves east towards the coast. The kttd-kdls gradient is expected
to be -7 to -9 mb Saturday afternoon. This will result in gusty east
winds that will help clear skies and improve air quality. Cold air
damming on the east side of the cascades will result in more of a gap
east wind for Sunday and Monday. ~tj

Long term No changes. Previous discussion follows... Monday night
through Thursday... A dry start to next week is expected with the
strong upper level ridge remaining in place over the pacific
northwest. East winds will become increasingly confined to the
eastern columbia river gorge. Elsewhere, winds will begin to become
lighter under the strengthening inversion. This pattern will remain
in place until around midweek. Forecast models continue to not be in
great agreement with respect to the timing of the next frontal system
approaching. Continued to utilize an ensemble based approach today,
resulting in highest rain chances holding off until around
thanksgiving. However, due to the aforementioned spread in models,
confidence in the holiday forecast remains lower than normal. Cullen

Aviation Varied flight conditions across the area. A weak
shortwave moving into western wa is pushing stratus with cigs
around 1500-3000 ft inland into NW or to about kuao. However
south of kuao widespread ifr to vlifr in fog persists. Clouds may
expand further south thus affecting the fog by improving
conditions somewhat. For the fog areas generally plan late
morning for improvement then trending toVFR after midday. Some
locations such as the keug area may persist in ifr CIGS well into
the afternoon. Fog likely to return from about ksle southward
tonight with keug being most affected. The coast and north
interior should beVFR with increasing easterly winds.

Pdx and approaches... Expect MVFR CIGS around 1500-3000 ft this
morning then trending toVFR after 20z. May see brief 3-5sm
visibility restrictions in fog early this morning. Increasing
easterly winds tonight will keep the areaVFR.

Marine Seas are slowly coming down after their peak and are
now near around 8 ft at 13 seconds. Seas will settle around 7 ft
today and near 5 ft by the end of the weekend.

A ridge of high pressure will lay over the waters through today,
then high pressure will strengthen inland for increasing n-ne
flow through the weekend. Some localized gusts 25-30 kt will be
possible in the offshore flow over the weekend, mainly below gaps
in the coastal terrain. Mh weagle

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... None.

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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 19 mi40 min 52°F1024 hPa
ASTO3 - 9439040 - Astoria, OR 28 mi40 min SE 2.9 G 4.1 49°F 52°F1023.4 hPa
46243 - Clatsop Spit, OR - 162 28 mi28 min 53°F6 ft
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 36 mi38 min WNW 5.8 G 9.7 55°F 54°F8 ft1023.5 hPa (-0.5)54°F
46248 - Astoria Canyon, OR (179) 43 mi33 min 55°F8 ft

Wind History for Garibaldi, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR23 mi33 minN 00.75 miFog/Mist49°F48°F100%1023.3 hPa

Wind History from AST (wind in knots)
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Last 24hrSE4E4CalmSE3CalmN4SE3N4CalmCalmN3CalmCalmCalmSE3SE3SE3SE3CalmSE4E4E3CalmCalm
1 day agoE5E5E3NE9NE3S8S83E7E5E4CalmSE3CalmCalmCalmCalmE3CalmE3NE4E3E4E5
2 days agoSE5S6SE4CalmE4E4E5E4NE4E6CalmE4CalmSE3SE4CalmCalmSE3CalmE4E4E5CalmE3

Tide / Current Tables for Nehalem, Nehalem River, Oregon
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Nehalem
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Fri -- 01:39 AM PST     1.00 feet Low Tide
Fri -- 07:16 AM PST     Sunrise
Fri -- 08:08 AM PST     6.05 feet High Tide
Fri -- 02:05 PM PST     Moonrise
Fri -- 02:46 PM PST     2.48 feet Low Tide
Fri -- 04:43 PM PST     Sunset
Fri -- 07:22 PM PST     5.24 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.51.111.52.53.74.95.765.95.44.63.732.62.52.93.84.75.25.24.84.13.3

Tide / Current Tables for Brighton, Nehalem River, Oregon
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Brighton
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Fri -- 12:37 AM PST     1.33 feet Low Tide
Fri -- 07:16 AM PST     Sunrise
Fri -- 07:42 AM PST     6.64 feet High Tide
Fri -- 01:44 PM PST     3.31 feet Low Tide
Fri -- 02:05 PM PST     Moonrise
Fri -- 04:43 PM PST     Sunset
Fri -- 06:56 PM PST     5.75 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.41.82.73.855.96.56.66.25.54.73.93.43.33.64.355.55.75.54.943

Weather Map and Satellite Images
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wmap_P
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.
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Wind Forecast for Portland, OR (8,2,3,4)
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Ground Weather Radar Station Portland, OR
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Disclaimer:
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.