Monday, March25, 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 7:05AMSunset 7:30PM Sunday March 24, 2019 10:24 PM PDT (05:24 UTC) Moonrise 11:15PMMoonset 8:31AM Illumination 82% Phase: Waning Gibbous; Moon at 19 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- 912 Pm Pdt Sun Mar 24 2019
In the main channel.. - general seas...5 to 6 ft through Monday evening. - first ebb...around 830 pm this evening. Seas to 8 ft. - second ebb...strong ebb around 845 am Monday. Seas to 9 ft. - third ebb...around 915 pm Monday. Seas to 8 ft.
PZZ200 912 Pm Pdt Sun Mar 24 2019
Synopsis for the southern washington and northern oregon coast.. A low pres system offshore will push a front south to north across the waters Monday. Weak offshore flow occurs Tuesday, followed by unsettled conditions for the middle part of the week.


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 250420 aaa
afdpqr
area forecast discussion... Updated
national weather service portland or
919 pm pdt Sun mar 24 2019
updated aviation and marine sections

Synopsis High pressure briefly brings dry and mild weather today
across southwest washington and northwest oregon. Weather turns
cooler and wetter starting Monday as an upper-level trough settles
over the northeastern pacific and pacific northwest.

Short term Today through Wednesday... A shortwave ridge is passing
over the area today, causing this clear sunny weather this
afternoon, as well as the morning fog this morning. This will be
short lived, however. A broad unstable air mass off the west coast
can be seen on satellite, and this is the broad upper-level trough
that will be settling itself off the coast of washington and oregon
through most of this week.

This negatively tilted trough will bring the first shortwave up from
the southwest late tonight into Monday. This means rain and some
mountain snow at higher elevations. The warm front lifts north,
spreading rain across the area Monday morning, with stratiform rain
turning to showers behind the warm front as the unstable air mass
moves into northwest oregon and southwest washington. Expect showers
to stat to taper off Monday night, but won't completely clear out on
Tuesday. Any showers on Tuesday should stay confined mainly to the
coast and coast range. Offshore flow increases late Tuesday night
into Wednesday as the low pressure center associated with the base of
this upper-level trough moves closer to southwest oregon and starts
to approach from the southwest. Wednesday should stay mostly dry as
the low stays south of our area, but lane county may get clipped by
some precipitation on the north side of the low. We will also see
gusty east winds develop through the columbia river gorge on
Wednesday as the pressure gradient increases across the cascades.

-mccoy

Long term Wednesday night through Sunday... Operational
models and their ensembles suggest a large upper level trough over
the eastern pacific will continue cool and showery weather over the
region during the second half of the work week. Expect shower
activity to generally be at a minimum during the nighttime hours and
to peak each day during the afternoon and early evening hours.

Thursday definitely looks to be the wettest day in the extended
forecast. While shower chances certainly appear to exist on Friday,
coverage and intensity should be considerably less than Thursday.

Both the eps and GEFS ensemble means suggest shortwave ridging will
shift across the region over the weekend, but the GEFS is admittedly
a bit faster. As a result, went with a blend of the solutions, which
trended pops and sky cover downward and temperatures upwards
Saturday. Pops were trended closer to climo on Sunday when timing
differences in the shortwave ridge axis shifting across the region
could result in additional wet weather moving back into the region.

Neuman

Aviation Vfr conditions with increasing high clouds this
evening as an occluded front approaches from the southwest. The front
will swing south to north across the region Monday.

Expect rain to begin around 13-15z Mon in the konp-keug area
then reach kast-k4s2 by 18-20z mon. MVFR conditions are expected
with the front, around 19-21z konp-keug and 22z mon-01z tue
kast-kpdx.VFR should return after frontal passage, but may still see
spots of MVFR CIGS through Mon evening.

Kpdx and approaches...VFR expected to continue through 21z mon,
then increasing chances for MVFR CIGS as the occluded front moves
through. Right now think best time for MVFR conditions will be
around 00z-03z Tue time frame. east wind develops at the west
end of the gorge, including kttd, tonight and strengthens
overnight into Mon morning with gusts 25-35 kt. Mh weishaar

Marine Wind speeds primarily 15 kt or less through 07z mon.

Another splitting front along 130w longitude this afternoon pivots
northeast overnight and Mon morning. The bulk of the energy will
be over the N california and S oregon waters. There is the potential
for southerly gusts to 25 kt over the southwest portion of pzz275
and easterly gusts to 25 kt over the north waters late tonight
through Mon morning. Due to the localized nature of these gusts
om the easterly winds, will not issue an advisory. However with
greater potential for south to southwest gusts to 25 kt mon
through Mon night over all zones, have issued an advisory. Wind
speeds diminish later Mon evening and Tue through late week
under generally weak surface gradients.

Wave heights expected to get just above 10 ft late tonight through
mon night and will issue a small craft advisory for hazardous
seas with the afternoon forecast. Although total wave heights may
fluctuate at or just below 10 ft, the potential roughness due to
mixed swell supports an advisory. Seas hover in the 6 to 8 foot
range Tue through the end of next week. Mh weishaar

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds from 11 am to 10 pm pdt Monday
for coastal waters from CAPE shoalwater wa to florence or
out 60 nm.

Small craft advisory for hazardous seas from 5 am Monday to 5
am pdt Tuesday for coastal waters from CAPE shoalwater wa
to florence or out 60 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ASTO3 - 9439040 - Astoria, OR 5 mi36 min 51°F 46°F1019.1 hPa
46243 - Clatsop Spit, OR - 162 15 mi24 min 50°F5 ft
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 34 mi34 min NE 9.7 G 12 51°F 51°F6 ft1019.2 hPa (-0.5)44°F
TOKW1 - 9440910 - Toke Point, WA 36 mi42 min 51°F 52°F1019.9 hPa
46248 - Astoria Canyon, OR (179) 42 mi24 min 51°F7 ft
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 44 mi36 min 53°F1019 hPa
LOPW1 - 9440422 - Longview, WA 48 mi36 min 44°F1020.2 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR3 mi29 minESE 310.00 miFair44°F37°F79%1019.1 hPa

Wind History from AST (wind in knots)
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Last 24hrSE5S4SE3SE4CalmSE4CalmSE3S3SE4SE3E5NE3NE4N5N4N5N6N8NW7NW4CalmS4E3
1 day agoS4CalmSE4E4SE3CalmSE3CalmCalmSE3Calm3N6N7N5N5E6CalmN4W6W5W3CalmCalm
2 days agoCalmCalmSE3CalmSE4CalmE3E3E3CalmE6SE3SE6SE5E5S9S13SW10
G19
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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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Mon -- 12:14 AM PDT     Moonrise
Mon -- 04:48 AM PDT     9.03 feet High Tide
Mon -- 07:08 AM PDT     Sunrise
Mon -- 10:05 AM PDT     Moonset
Mon -- 11:38 AM PDT     0.02 feet Low Tide
Mon -- 05:53 PM PDT     7.23 feet High Tide
Mon -- 07:34 PM PDT     Sunset
Mon -- 11:28 PM PDT     2.17 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.23.85.87.68.798.36.84.82.81.20.20.10.92.44.25.86.97.26.75.54.132.3

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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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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Portland, OR (1,6,7,8)
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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.