Sunday, May26, 2019 L-36.com


Marine Weather and Tides
Astoria, 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 5:26AMSunset 8:51PM Sunday May 26, 2019 2:09 PM PDT (21:09 UTC) Moonrise 1:23AMMoonset 11:44AM Illumination 46% Phase: Third Quarter Moon; Moon at 23 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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PZZ210 Columbia River Bar- 301 Am Pdt Sun May 26 2019
In the main channel.. - general seas...4 to 6 feet today, lowering to 3 to 5 feet tonight and Monday. - first ebb...around 11 am Sunday. Seas 5 to 7 feet. - second ebb...around 1215 am Monday. Seas around 6 feet. - third ebb...around 1215 pm Monday. Seas around 5 feet.
PZZ200 301 Am Pdt Sun May 26 2019
Synopsis for the southern washington and northern oregon coast.. High pressure will develop across the pac nw waters today and Mon, persisting through at least Wed. Thermal low pressure is expected to strengthen along the northern ca and southern or coastline Tue and Wed.


7 Day Forecast for Marine Location Near Astoria, OR
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location: 46.19, -123.85     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 261705 aaa
afdpqr
area forecast discussion
weather service portland or
1004 am pdt Sun may 26 2019

Synopsis Yesterday's low pressure system moves down into the
ameican southwest today and tonight, allowing temperatures to warm
back to, or even a little above normal today and Monday. There is
still risk for showers or even afternoon and evening thunderstorms
to inland areas, but the focus for these will tend to be over the
cascades. Going through the middle part of the week, there is only a
slight chance for showers over cascades, otherwise dry weaher is
expected with seasonably mild temperatures thanks to onshore flow.

Short term Tonight through Tuesday... .The upper low that brought
the rain and cool temepratures yesterday, was down over the north
califoria coast early this morning, heading southeast towards the
desert southwest. With rising heights aloft, the air mass will warm
today back to near or maybe a little above normal as model 850 mb
temperatures are expected to rise to 8 to 10 degress c. The region
remains in the cyclonic flow on the north side of the low however,
which will leave the inland areas open to a chance for showers or
afternoon and evneing thunderstorms rotating in from east of the
cascades. Mid level clouds and some showers are seen on radar and
satellite over eastern washington this morning, with models
generally showing this moisture moving west and then southwest into
the north part of the forecast area later today. Model soundings
suggest potential instability today over the cascades extending as
far west as the coast range, but if clouds are thick enough over the
northern parts of the forecast area, it may inhibit heating
sufficiently to reduce the threat of thunderstorms. For now, will
keep some level of a chance for thunderstorms from the cascades out
to the oregon coast range, but this chance would be sensitive to any
clouds moving in today, or in the case of northwest oregon this
morning, sensitive to the clouds being slow to leave.

As the upper low moves east across arizona and utah Monday, the
region remains in the cyclonic flow on the backsidee of the low.

Model soundings actually suggest this may be the more unstable day
over the cascades thanks to continued low level warming, but the
trigger mechanism becomes a little more iffy as weak disturbances in
the now more northerly flow aloft are difficult to track. Expect the
main threat to be more concentrated over the cascades, although
there is still a small chance for some showers or thunderstorms to
drift west out of the foothills. A couple more degrees of warming at
850 mb and drier ground favor inland temperatures rising over a few
degrees over Sundays highs. A continuation of onshore flow at the
surface will tend to keep coastal temperatures moderated, and make
it a little tough to completely get rid of marine clouds Monday.

Tuesday sees the upper heights build a little more as an upper ridge
pushes onto the coast. Any small threat for thunderstorms will be
confined to the cascade crest by this time under the stabilizing air
mass. A continuation of onshore flow will allow for little change to
temperatures Tuesday, and should bring more clouds back to the coast
Tuesday morning.

Long term Tuesday night through Saturday... No changes.

Previous discussion follows. Ridge of high pressure remains in place
over western canada. The high is far enough north to allow for
shortwave disturbances to slide south and clip our area with a few
chances for showers, mainly in the linn and lane county cascades.

Otherwise, expect fairly nice weather for the rest of the forecast
area through midweek, with marine clouds on the coast and partly
cloudy skies inland. Temperatures will be near seasonal for this
time of year, only a few degrees above normal inland. Next weekend a
more zonal flow pattern sets up over the pacific, but high pressure
remains fairly dominant over the pacific northwest into next
weekend. -mccoy

Aviation Clearing skies will maintainVFR conditions across
the coastal portions of the area. Meanwhile, shallow low clouds are
lingering through much of the interior lowlands, with low MVFR
ceilings remaining. Expect n-ne surface wind to increase a bit later
this morning which should yield some mixing and scattering, and a
trend towardVFR conditions. Clouds will likely linger longest south
of ksle, where they may take until 20z or so to scatter. Increasing
instability throughout the day should lead to increasing showers and
potentially a few thunderstorms over the cascades this afternoon,
with possibly a few storms over the interior lowlands after 21z.

Kpdx and approaches... Low MVFR CIGS through about 17z, with trend
towardVFR after. Increasing showers and potentially a few
thunderstorms may develop over the cascades and move toward the
terminal area between 21z and 04z. Scattered clouds return
overnight, but expectVFR late tonight through early Monday.

Cullen

Marine Seas have finally subsided below 10 ft throughout the
coastal waters, so we cancelled our last remaining small craft
advisories. Moderate n-nw winds are likely across the waters
today, with a few localized gusts 20-25 kt possible mainly across
the southern waters. These gusts are not expected to be
widespread nor prolonged enough to warrant advisories. High
pressure nosing into the pac NW waters will maintain modest nw
flow Monday through midweek, tending strongest with gusts up to
20 kt at times newport southward each afternoon and evening. Seas
are expected to remain below 10 ft. 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
ASTO3 - 9439040 - Astoria, OR 5 mi39 min WSW 5.1 G 6 59°F 58°F1010.2 hPa
46243 - Clatsop Spit, OR - 162 15 mi39 min 57°F6 ft
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 34 mi79 min NW 12 G 14 55°F 56°F7 ft1011.5 hPa (-0.5)51°F
TOKW1 - 9440910 - Toke Point, WA 36 mi45 min Calm G 2.9 66°F 59°F1010.9 hPa
46248 - Astoria Canyon, OR (179) 42 mi39 min 56°F6 ft
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 44 mi45 min 57°F1009.8 hPa
LOPW1 - 9440422 - Longview, WA 48 mi45 min 56°F1010.6 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR3 mi74 minNNW 710.00 miA Few Clouds65°F53°F66%1010.4 hPa

Wind History from AST (wind in knots)
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Last 24hrW12NW12NW7NW7NW7NW3W4N9N5CalmCalmSE3CalmN6N4SE3CalmCalmN3N4NW5NW6NW7N12
1 day agoW13W10
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W8W8W9W9SW3SW3SW3SW3CalmS3CalmCalmS3S4S4SW5SW4W4W6W8NW11NW12
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Tide / Current Tables for Astoria (Youngs Bay), Columbia River, Oregon
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Astoria (Youngs Bay)
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Sun -- 01:27 AM PDT     3.47 feet Low Tide
Sun -- 02:21 AM PDT     Moonrise
Sun -- 05:31 AM PDT     Sunrise
Sun -- 06:52 AM PDT     6.64 feet High Tide
Sun -- 09:34 AM PDT     Last Quarter
Sun -- 12:44 PM PDT     Moonset
Sun -- 01:54 PM PDT     1.12 feet Low Tide
Sun -- 08:44 PM PDT     7.03 feet High Tide
Sun -- 08:53 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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43.53.64.155.96.56.66.35.44.2321.31.11.52.43.74.96.16.876.55.6

Tide / Current Tables for Chinook, Baker Bay, Washington
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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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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 (17,4,5,8)
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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.