Friday, July28, 2017 L-36.com


Marine Weather and Tides
Chinook, WA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 5:49AMSunset 8:53PM Friday July 28, 2017 6:04 AM PDT (13:04 UTC) Moonrise 10:59AMMoonset 10:53PM Illumination 24% Phase: Waxing Crescent; Moon at 5 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- 212 Am Pdt Fri Jul 28 2017
In the main channel..Combined seas 3 ft today and tonight. However, seas will temporarily build to 5 ft during the ebbs around 9 am this morning, and 945 pm tonight.
PZZ200 212 Am Pdt Fri Jul 28 2017
Synopsis for southern washington and northern oregon coast.. High pressure over the northeast pacific will remain into next week. Low pressure over northern california will bring strengthening north winds this weekend continuing into early next week.

7 Day Forecast for Marine Location Near Chinook, WA
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location: 46.27, -123.95     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 281018
afdpqr
area forecast discussion
national weather service portland or
318 am pdt Fri jul 28 2017

Synopsis An upper level trough over the NE pacific will maintain
onshore flow with areas of low clouds night and morning low clouds,
especially near the coast and locally inland, through much of the
weekend. Look for slowly warming temps through the weekend. An upper
level ridge over the southwest u.S. Will start to expand toward the
pacific northwest later in the weekend and then especially during the
coming week, pushing temperatures inland up into the 90s, possibly
even the upper 90s or even close to 100 during the mid week period
next week.

Short term Today through Sunday... An upper trough will continue
over the NE gulf of alaska today and into the weekend, lifting out
into canada Sunday. This will maintain some onshore flow and keep
some night and morning low clouds and patchy fog at the coast,
locally inland in the mornings. There is a weak short wave aloft
along the coast this morning and slowly moving through the base of
the trough. This morning the main area of clouds is well offshore,
but we are seeing some clouds now forming along the coast and west
slopes of the coast range in the northerly low level flow. Clouds
inland are much more sparse but we could see some develop after
sunrise along the cascade foothills. Clouds will tend clear faster
this morning than on Thursday with inland temps warming into the
lower to mid 80s.

Not a lot of change Saturday. A weak short wave still lingers near
the coast, and we should see some night and morning low clouds again
along the coast, and a little bit inland especially north. Again,
anything that forms should not last long with plenty of sunshine,
especially inland. Temps inland on Saturday should reach the mid to
upper 80s.

Sunday starts to see the upper high in the southwest u.S. Expand
northwestward into the pacific northwest. After some local morning
low clouds, 500 mb heights approach 590 dm. Temps inland should reach
85 to around 90 based on 850 mb temperature considerations. Tolleson

Long term Sunday night through Thursday... The upper level ridge
that strengthens on Sunday continues through much of the coming week.

500 mb heights approach the lower 590s. Despite the southwest flow
aloft, we should see less low clouds even at the coast as the marine
layer will be shallow. 850 mb temps are indicating temps inland will
be in the 90s, perhaps the upper 90s or even close to 100 during the
mid week period. We might start to see temps ease a little late next
week but still remain above normal. Tolleson

Aviation Marine clouds have been slow to redevelop overnight,
leaving mostlyVFR conditions over NW oregon and SW washington
through the early morning hours. Expect ifr to MVFR conditions to
redevelop along much of the coastal region through 14z this morning,
before breaking up again and improving toVFR conditions between 19z
and 21z. Over the interior, there will remain a chance for MVFR cigs
to redevelop after 12z this morning, with best chances along the
cascade foothills and affecting kttd and kpdx. These clouds should
break up again by midday, between 17z and 20z. Marine clouds with
MVFR conditions are likely to redevelop along the coast again fri
night after 03z, with a chance of MVFR CIGS spreading up the lower
columbia as far as kpdx and kttd after 11z Fri night.

Kpdx and approaches... There is a chance for MVFR CIGS to develop
this morning between 12z and 19z, otherwise expectVFR conditions
today. Tonight should remainVFR through most of the night, with a
chance for MVFR CIGS to redevelop after 11z Fri night.

Marine High pres will remain offshore, keeping winds generally
out of the north through the weekend and into early next week.

Strongest winds in general will be from the late afternoon through
the evening hours each day, and strongest over the waters off the
central oregon coast as opposed to areas further north. Over the ne
pacific, keeping winds out of the north to northwest. Winds will
generally peak during the afternoon and evening hours and generally
be strongest across the waters off the central oregon coast versus
areas farther north. An area of low pres over northern ca will
strengthen this weekend, resulting in stronger winds gusting into
the 20 to 25 kt range. Seas will remain dominated by wind waves and
fresh swell resulting in short periods through the weekend and into
next week, but wave heights will remain 6 feet or less.

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 10 mi65 min 57°F3 ft
ASTO3 - 9439040 - Astoria, OR 11 mi53 min NE 2.9 G 4.1 56°F 70°F1019.8 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth 30 mi75 min N 7.8 G 7.8 58°F 57°F3 ft1020.2 hPa (+0.0)56°F
TOKW1 - 9440910 - Toke Point, WA 30 mi53 min NW 4.1 G 6 56°F 56°F1020.3 hPa
46T29 34 mi45 min N 7.8 G 9.7 59°F 59°F1021.1 hPa56°F
46211 - Grays Harbor, WA (036) 44 mi65 min 55°F4 ft
WPTW1 - 9441102 - Westport, WA 45 mi89 min NNW 9.9 G 11 54°F 55°F1019.7 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 49 mi53 min 51°F1020.1 hPa

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR8 mi70 minN 010.00 miMostly Cloudy50°F46°F89%1020.1 hPa

Wind History from AST (wind in knots)
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Last 24hrN6N7N4NW8NW8NW9NW8NW10NW12NW16NW15NW13NW13
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1 day agoNW8NW9NW9NW7NW6W9NW10NW10NW10NW9NW13NW11NW8NW8NW8NW7NW9NW8NW7NW6N8NW6W4NW9
2 days agoNW4SW3NW5W3N8NW8NW10NW10W9NW12NW13NW13NW15W16NW12NW13NW11NW7NW9NW9NW7NW7W6N6

Tide / Current Tables for Chinook, Baker Bay, Washington
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Chinook
Click for Map
Fri -- 05:03 AM PDT     7.03 feet High Tide
Fri -- 05:53 AM PDT     Sunrise
Fri -- 11:06 AM PDT     0.22 feet Low Tide
Fri -- 11:58 AM PDT     Moonrise
Fri -- 05:53 PM PDT     7.56 feet High Tide
Fri -- 08:50 PM PDT     Sunset
Fri -- 11:49 PM PDT     1.60 feet Low Tide
Fri -- 11:53 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
23.14.55.76.776.65.33.620.80.20.51.63.24.96.37.37.675.74.22.91.9

Tide / Current Tables for Columbia River entrance (N. Jetty), Washington
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Columbia River entrance (N. Jetty)
Click for Map
Fri -- 04:49 AM PDT     6.40 feet High Tide
Fri -- 05:53 AM PDT     Sunrise
Fri -- 10:58 AM PDT     0.30 feet Low Tide
Fri -- 11:59 AM PDT     Moonrise
Fri -- 05:39 PM PDT     6.96 feet High Tide
Fri -- 08:51 PM PDT     Sunset
Fri -- 11:41 PM PDT     1.52 feet Low Tide
Fri -- 11:54 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
23.14.35.46.26.45.84.63.11.70.70.30.71.83.34.866.86.96.253.72.51.7

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (9,2,3,4)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.