Monday, August26, 2019 L-36.com


Marine Weather and Tides
Warrenton, OR

Version 3.4
NOTICE
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 6:23AMSunset 8:03PM Monday August 26, 2019 1:58 AM PDT (08:58 UTC) Moonrise 12:47AMMoonset 4:46PM Illumination 18% Phase: Waning Crescent; Moon at 25 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- 259 Pm Pdt Sun Aug 25 2019
In the main channel.. - general seas...3 to 5 feet today through Monday. - first ebb...around 145 am Monday. Seas temporarily building to 8 ft. - second ebb...around 215 pm Monday. Seas temporarily building to 7 ft. - third ebb...around 245 am Tuesday. Seas temporarily building to 7 ft.
PZZ200 259 Pm Pdt Sun Aug 25 2019
Synopsis for the southern washington and northern oregon coast.. High pressure will continue to strengthen over the ne pacific, while thermal low pressure builds northward along the southern or coast. Thermal low pressure is expected to continue building northward into western oregon through Tuesday. A southerly wind reversal appears likely on Wednesday.


7 Day Forecast for Marine Location Near Warrenton, OR
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location: 46.17, -123.92     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 260415
afdpqr
area forecast discussion
national service portland or
910 pm pdt Sun aug 25 2019

Synopsis High pressure aloft strengthens early this week over the
pacific northwest with offshore low-level flow developing Monday and
Tuesday. This will bring hot weather to the region, lasting until
mid-week.

Short term Tonight through Wednesday... Goes-16 visible satellite
imagery this evening revealed a noticeable haze along the coast and
across interior southwest washington. A few stations have reported
visibilities dropping down into the 4-5 mile range so perhaps there
is some smoke trapped in the marine layer. Anyway, this could result
in some hazy skies in the lower columbia and willamette river valleys
on Monday. Otherwise, models are in good agreement a shortwave ridge
building across the eastern pacific will move eastward over the
pacific northwest during the first half of this week. This will
produce some of the hottest temperatures of the 2019 summer Tuesday
and Wednesday. East winds look to hold at the coast for a chunk
of Tuesday so expect many of the coastal communities to climb well
into the 80s and perhaps even the low 90s in a few spots like
tillamook. Models are suggesting a decently strong southerly wind
reversal will arrive on the central coast of oregon Tuesday night so
expect temperatures to cool rather markedly on Wednesday,
particularly south of tillamook along the coast. In addition, fog
and patchy drizzle will likely rush onto the rest of the coast later
Wednesday afternoon and evening, if it does not arrive sooner.

It looks like the southern willamette valley could see its hottest
temperatures on Tuesday with 850mb temperatures climbing towards 24c.

The hottest temperatures appear likely to shift northward towards the
portland metro and columbia river gorge on Wednesday. A heat advisory
may be needed for our willamette valley clark county zones at a
minimum.

In the meantime, a moderately strong northerly surface pressure
gradient will drive breezy northerly winds on Monday. While fuels are
marginal given the recent rains, the combination of the northerly
winds and low relative humidities could bring critical fire weather
conditions to parts of the coast range and willamette valley on
Monday so the fire weather watches look on track. Neuman

Long term Wednesday night through Sunday... Wednesday night, a
ridge set up over the pacific northwest becomes negatively tilted
and the flow becomes more south-southwesterly. An marine push will
bring cloud cover to much of northwest oregon southwest washington
Wednesday night which will allow temperatures to cool slightly,
albeit remaining quite warm, on Thursday. In addition to the onshore
flow, a short wave trough, stemming from the south pacific, is
wrapped in ample moisture and advecting over the area through the
flow of the ridge. As the shortwave moves inland, the combination of
increased precipitable water and southerly flow sets the environment
up for a chance of rain showers west and along the crest of the
cascades. Thursday, with increased moisture, the shortwave
intensifying instability and daytime heating, there is a slight
chance of thunderstorms along the crest through the afternoon. Once
this shortwave passes through the area on Thursday, the persistent
ridge over the area will keep conditions dry, and a typical summer
pattern of morning clouds with afternoon clearing will be the norm
through the weekend. -muessle

Aviation Vfr conditions across the area this evening. Spotty
marine clouds are developing along the wa and or coast, but not
currently affecting any coastal TAF sites. However low level
pressure pattern as well as models such as the NAM and href show
MVFR CIGS forming at the coast and also inland in western wa.

This may be an event where stratus forms in puget sound then
spreads expands southward to the north willamette valley. Winds
becomes more offshore Monday morning so status should dissipate
quickly resulting in widespreadVFR conditions by late morning.

Kpdx and approaches...VFR conditions under mostly clear skies
expected through tonight. MVFR stratus move onto the terminal
between 13-17z Mon time frame, then return toVFR.

Marine High pressure continues to strengthen over the NE pac
today with thermal low pressure building along the south oregon
coast. This will cause n-nw winds to increase across our coastal
waters this afternoon, with gusts to 25 kt likely south of
tillamook head. While winds should easing near the immediate
coastline late tonight and early Monday morning, winds will
remain strong beyond 5-10 nm offshore. Winds strengthen further
Monday afternoon and evening, with local gale force gusts to 35
kt possible across our southern waters, especially near capes.

These strong winds will drive very steep wind waves, with seas as
high as 9 ft with average periods of 6 or 7 seconds.

The thermal trough over southern oregon will build northward into
the north oregon waters Tuesday and Wednesday. This may push the
stronger winds further offshore by midweek, and may open the door
for a southerly wind reversal late Tuesday night or Wednesday.

64 weagle

Pqr watches warnings advisories
Or... Fire weather watch from Monday afternoon through Tuesday
evening for east slopes of the central oregon coast range-
north oregon coast range-willamette valley.

Wa... Fire weather watch from Monday afternoon through Tuesday
evening for clark county lowlands.

Pz... Small craft advisory until 11 am pdt Tuesday for waters from
cape shoalwater wa to florence or from 10 to 60 nm.

Small craft advisory until 11 pm pdt Monday for coastal waters
from cascade head to florence or out 10 nm.

Small craft advisory until 11 pm pdt this evening for coastal
waters from CAPE shoalwater wa to cascade head or out 10
nm.

Small craft advisory from noon to 11 pm pdt Monday for coastal
waters from CAPE shoalwater wa to cascade head or out 10
nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ASTO3 - 9439040 - Astoria, OR 8 mi59 min NNE 2.9 G 5.1 59°F 68°F1023.1 hPa (+0.0)
46243 - Clatsop Spit, OR - 162 11 mi59 min 60°F5 ft
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 30 mi69 min N 16 G 19 61°F 64°F6 ft1023.7 hPa (+0.0)57°F
TOKW1 - 9440910 - Toke Point, WA 37 mi59 min Calm G 1.9 58°F 65°F1023.6 hPa (+0.0)
46248 - Astoria Canyon, OR (179) 39 mi59 min 64°F6 ft
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 42 mi59 min 61°F1023 hPa (+0.0)

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for KAST

Wind History from AST (wind in knots)
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Last 24hrNW8NW6CalmCalmS3E4E4SE3N3N6NW9NW10NW13NW14NW12NW12NW13NW14N14NW14NW10NW7NW9N7
1 day agoSE4CalmCalmSE5SE3SE3CalmSE436SW8SW83NW6NW8NW10W10NW7W4CalmNW7NW10NW5N9
2 days agoSE3SE4E3CalmCalmSE5SE4CalmE4N8NW4N9N7W11NW15NW13
G18
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Tide / Current Tables for Warrenton, Skipanon River, Columbia River, Oregon
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Warrenton
Click for Map
Mon -- 01:46 AM PDT     Moonrise
Mon -- 04:36 AM PDT     -0.02 feet Low Tide
Mon -- 06:28 AM PDT     Sunrise
Mon -- 11:14 AM PDT     5.85 feet High Tide
Mon -- 04:15 PM PDT     2.90 feet Low Tide
Mon -- 05:46 PM PDT     Moonset
Mon -- 08:05 PM PDT     Sunset
Mon -- 10:18 PM PDT     7.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.93.31.90.80.100.61.734.35.35.85.64.943.32.93.13.856.37.37.87.7

Tide / Current Tables for Chinook, Baker Bay, Columbia River, Washington
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Chinook
Click for Map
Mon -- 01:46 AM PDT     Moonrise
Mon -- 04:03 AM PDT     -0.14 feet Low Tide
Mon -- 06:28 AM PDT     Sunrise
Mon -- 10:57 AM PDT     5.66 feet High Tide
Mon -- 03:42 PM PDT     3.14 feet Low Tide
Mon -- 05:46 PM PDT     Moonset
Mon -- 08:05 PM PDT     Sunset
Mon -- 10:01 PM PDT     7.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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42.51.10.2-0.10.10.92.13.34.55.45.75.34.63.83.33.23.64.45.56.67.37.67.1

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 (4,6,7,8)
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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.