Thursday, September19, 2019 L-36.com


Marine Weather and Tides
Long Beach, WA

Version 3.4
NOTICE
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:56AMSunset 7:21PM Thursday September 19, 2019 12:33 PM PDT (19:33 UTC) Moonrise 9:15PMMoonset 11:25AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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- 230 Am Pdt Thu Sep 19 2019
In the main channel.. - general seas...around 6 ft, but easing to 4 ft by Thursday evening. - first ebb...around 815 am Thursday. Seas to 7 feet. - second ebb...around 845 pm Thursday. Seas to 7 feet. - third ebb...around 9 am Friday. Seas to 5 feet.
PZZ200 230 Am Pdt Thu Sep 19 2019
Synopsis for the southern washington and northern oregon coast.. High pressure will reside over the waters through Saturday. The next frontal system moves into the waters late Saturday night and then moves inland Sunday morning. High pressure returns to the waters Sunday afternoon.


7 Day Forecast for Marine Location Near Long Beach, WA
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location: 46.37, -124.05     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 191629
afdpqr
area forecast discussion
national weather service portland or
930 am pdt Thu sep 19 2019

Synopsis Today will be a relative break from the wet weather
across SW washington and NW oregon, with a mix of Sun and clouds for
most of the forecast area. A weak disturbance may clip our northern
zones with some light rain later tonight into Friday, then high
pressure should result in a dry and mild day Saturday. The next
organized frontal system will spread another round of rain across
western wa or Sunday.

Short term Today through Saturday... No changes. Previous
discussion follows. Most of the showers have dissipated across sw
washington and NW oregon, though weak low-level convergence is
maintaining a few light showers in the oregon cascade foothills. As
of 130 am, skies had cleared across much of the tualatin valley and
western willamette valley, allowing for good radiational cooling and
some patchy fog. Expect some cloudiness to linger much of the day,
though there will probably be increasing sunbreaks during the
afternoon as some drying mixing occurs in the boundary layer.

Depending on how much Sun we get, lower elevations may approach 70
degrees this afternoon.

High clouds will begin to encroach on the region from the north,
reaching astoria and the willapa hills this afternoon then spreading
south across the forecast area as a weak frontal system approaches
tonight. Most guidance suggests spotty light QPF as a weak occluding
front moves through later tonight and Friday. 00z NAM time-height
cross sections suggest a deep moist layer with plenty of mid- and
high-level clouds Friday, so there probably won't be much sunshine
and showers will likely continue into the afternoon hours. As a
result, expect most of the forecast area to stay in the 60s for highs
Friday, with higher elevations staying in the 50s.

Low-level moisture lingers into Saturday, but high pressure should
result in a drier day with a bit more sunshine, especially south of
salem. Cannot completely rule out a shower Saturday due to the
lingering moisture, mainly over SW washington where the moist layer
will be a bit deeper. Latest nbm forecast suggests highs in the lower
70s Saturday, which seems reasonable. If clouds clear a little
earlier than expected, 850 mb temps near +10 deg c may support temps
in the mid 70s Saturday afternoon... The best chance for this will be
south of salem. Either way, with an organized frontal system expected
for Sunday, it appears Saturday will be the relatively drier day this
coming weekend. Weagle

Long term Saturday night through Tuesday... No changes. Previous
discussion follows. After a brief reprieve from the rain, yet
another long wave trough will advance towards the west coast
Saturday night. This low will usher in an extensive amount of
moisture, increasing rainfall throughout much of northwest
oregon southwest washington. This low and associated cold front are
fairly fast moving and rain should only persist through day on
Sunday. Behind the trough, a ridge moves in as high pressure builds
in the pacific on Monday. Skies are expected to clear out early
Monday morning causing temperatures to drop slightly. This decrease
in temperature along with the residual moisture from the rain on
Sunday will create an environment suitable for fog development in
valleys and along the coast. This will be something to watch over
the next couple of days. The high pressure is expected to persist
through the middle of the week keeping conditions drier, and
temperatures slightly warmer in the 60s and low 70s.

Aviation A wide range of conditions this morning across northwest
oregon and southwest washington, with widespred ifr and MVFR
conditions mainly in the valleys and along the coast, but areas of
vfr conditions and mostly clear skies. Expect improving conditions
from 17z to 20z, with mostlyVFR conditions this afternoon and early
evening. Expect MVFR ceilings to return tonight between 02z and 10z
as clouds spread initially from the north coastal areas southeast
into the willamette valley. MVFR conditions are then likely to
persist past 18z Friday.

Kpdx and approaches... MVFR ceilings this morning expected to break
up between 18z and 21z, leavingVFR conditions that will last
through the afternoon and into the evening. After 06z to 09z MVFR
ceilings are expected to spread back into the region from the
northwest, and then persist past 18z Friday.

Marine No changes. Previous discussion follows. Surface high pres
will remain over the waters through Sat morning with NW to N wind 15
kt or less. Models in good agreement showing the next cold front
moving into the outer zones late Sat night, likely resulting in
small craft advisory level wind. The front pushes inland by late sun
morning. High pres returns late Sun and holds through early next
week. May see northerly wind gusts to 20 kt at times Sun through
tue.

Seas have slowly lowered below 10 ft and have allowed the small
craft advisory for the outer zones to expire. Wave heights will
continue to diminish over the next couple of days. Seas may reach
10 ft again sun. Longer range model guidance shows a northwest
fetch reaching the waters around the middle of next week. Have
gone conservative for now, generally 9-12 ft, but enp guidance
shows a core of 15-20 ft seas reaching the washington waters.

Weishaar

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
46243 - Clatsop Spit, OR - 162 11 mi33 min 63°F6 ft
46096 14 mi53 min 61°F
ASTO3 - 9439040 - Astoria, OR 19 mi63 min W 1 G 2.9 62°F 67°F1018.9 hPa
TOKW1 - 9440910 - Toke Point, WA 24 mi63 min S 2.9 G 2.9 61°F 63°F1019.3 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 28 mi43 min S 1.9 G 3.9 62°F 61°F7 ft1019.6 hPa (+0.5)58°F
46211 - Grays Harbor, WA (036) 35 mi33 min 62°F7 ft
46248 - Astoria Canyon, OR (179) 36 mi33 min 63°F6 ft
WPTW1 - 9441102 - Westport, WA 37 mi57 min WNW 2.9 G 5.1 62°F 62°F1018.9 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR17 mi38 minN 510.00 miMostly Cloudy63°F55°F76%1019 hPa

Link to 5 minute data for KAST

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Last 24hrN6N10NW9NW11NW12NW11NW8NW9NW7NW5CalmSE3SE4CalmCalmCalmS4E3E3SE3CalmE3CalmN5
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S6S4SE4S4S5CalmS7SE4CalmCalmSE3E5CalmS3CalmSE3Calm4--
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Tide / Current Tables for Tarlatt Slough, Willapa Bay, Washington
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Tarlatt Slough
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Thu -- 12:04 AM PDT     0.51 feet Low Tide
Thu -- 05:44 AM PDT     7.14 feet High Tide
Thu -- 06:59 AM PDT     Sunrise
Thu -- 11:52 AM PDT     2.07 feet Low Tide
Thu -- 12:25 PM PDT     Moonset
Thu -- 05:21 PM PDT     8.40 feet High Tide
Thu -- 07:19 PM PDT     Sunset
Thu -- 10:14 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.51.12.94.86.16.97.16.65.54.232.32.12.84.66.67.88.48.37.66.44.731.7

Tide / Current Tables for Fort Canby, Jetty A, Columbia River, Washington
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Fort Canby
Click for Map
Thu -- 04:40 AM PDT     6.26 feet High Tide
Thu -- 06:59 AM PDT     Sunrise
Thu -- 09:50 AM PDT     2.13 feet Low Tide
Thu -- 12:25 PM PDT     Moonset
Thu -- 04:15 PM PDT     7.70 feet High Tide
Thu -- 07:20 PM PDT     Sunset
Thu -- 10:15 PM PDT     Moonrise
Thu -- 10:40 PM PDT     0.43 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.634.45.56.16.25.64.53.22.42.12.53.44.76.17.27.77.56.44.72.81.40.60.5

Weather Map
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wmap_P
GEOS 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 (15,3,4,5)
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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.