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Marine Weather and Tides Chinook, WA 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

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Sunrise 6:21AM

Sunset 8:14PM

Friday August 23, 2019 4:55 PM PDT (23:55 UTC)

Moonrise 11:16PM

Moonset 1:34PM

Illumination 41%

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.

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7 Day Forecast for Marine Location Near Chinook, WA

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Area Discussion for - Portland, OR

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Fxus66 kpqr 232143 afdpqr area forecast discussion national service portland or 243 pm pdt Fri aug 23 2019 Synopsis Seasonable weather through this weekend, with areas of morning clouds. Warmer weather is expected next week with interior temperatures likely warming into the upper 80s to lower 90s. Short term This afternoon through Tuesday... An upper trough approaching british columbia is beginning to flatten the upper ridge today for a more zonal weather pattern that will persist through Sunday. A surface low associated with the upper trough to the north will form a weak surface front that will brush by the south washington coast and willapa hills on Saturday. This will result in increased clouds along the coast and extreme SW washington, and occasional light rain. Increased pops to chance for the southern washington and northern oregon coasts, willapa hills, and coast range. It looks like there's a decent chance at a few hundredths of accumulation, although not sure if it will fall as drizzle or light rain. Could even see a bit of drizzle on the eastern slopes of the nw coast range, near banks, cornelius, and forest grove. This weak front and clouds will also result in slightly cooler temperatures Saturday afternoon. Seasonal, dry weather is expected for Sunday with clouds returning to the coast and parts of the willamette valley in the morning and clearing in the afternoon. The upper ridge begins to amplifies on Monday, beginning a warming trend. Latest model runs show thermal troughing developing over western oregon on Monday, resulting in light offshore flow. This will magnify the heating a little bit Monday if offshore flow develops early enough in the day. Thermal troughing moves over the willamette valley Tuesday, which is a typical local hot pattern. Upped temperatures a few degrees, blending the ECMWF and nbm. The ECMWF is the hottest model currently, but usually does pretty well with hot temperatures. There is the potential that Tuesday could see the hottest temperatures of the summer so far, but models have been a little bit squirrelly over the past couple of days, so still not completely confident in actual temperatures. Either way, it looks

hot. Bowen Long term Tuesday night through Friday... Wednesday looks much the same as Tuesday in the upper levels, but at the surface, the thermal trough moves offshore. Models are actually showing kind of a splitting of the thermal trough and the beginnings of a southwesterly push, which complicates temperatures. For most areas, Wednesday will likely be similarly hot to Tuesday, but there's some chance that the southern portion of the forecast area will cool Wednesday. Models show the upper level remnants of a long-deceased tropical system interrupting the ridging Thursday into Friday, which should bring at least a few degrees of cooling and end the offshore flow. Overall for next week, it still looks hot, as it has for a few days now, but still not confident in exactly how hot. Bowen Aviation MVFR CIGS return to the coast late this afternoon but more likely tonight. Expect some -ra or -dz from about ktmk northward on the coast after 11z Saturday. For inland locations, expectVFR conditions through 18z Saturday. Kpdx and approaches...VFR. Light winds becoming northwest around 10 kt later this afternoon through evening hours. Mh bowen Marine High pressure continues to weaken through the weekend as a weak trough moves through. The high pressure strengthens again late this weekend and into next week. This will cause a return to a more typical summer pattern. Seas 4 to 6 ft through the weekend. Seas will build some each afternoon and evening with increasing northerly winds. Seas likely to reach 8 or even 9 ft early next week with strongest winds. 42 Pqr watches warnings advisories Or... None. Wa... None. Pz... None. Interact with us via social media:

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
46243 - Clatsop Spit, OR - 162	10 mi	55 min			65°F	4 ft
ASTO3 - 9439040 - Astoria, OR	11 mi	55 min	E 1.9 G 7	68°F	70°F		1013.5 hPa (-0.6)
46096	12 mi	75 min	NNW 19 G 21	58°F	63°F		1013.9 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth	30 mi	65 min	NNW 16 G 18	63°F	63°F	4 ft	1014.8 hPa (-0.6)	50°F
TOKW1 - 9440910 - Toke Point, WA	30 mi	55 min	NW 15 G 19				1014.2 hPa (-0.3)
46248 - Astoria Canyon, OR (179)	38 mi	55 min			64°F	4 ft
46211 - Grays Harbor, WA (036)	44 mi	55 min			63°F	3 ft
WPTW1 - 9441102 - Westport, WA	45 mi	79 min	NW 18 G 19	61°F	63°F		1014.3 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR	49 mi	55 min					1013.8 hPa (-0.6)

Wind History for Astoria, OR

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Astoria, Astoria Regional Airport, OR	8 mi	2 hrs	W 11	10.00 mi	Fair	72°F	57°F	61%	1013.5 hPa

Link to 5 minute data for KAST

Wind History from AST (wind in knots)

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Tide / Current Tables for Chinook, Baker Bay, Columbia River, Washington

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Tide / Current Tables for Columbia River entrance (N. Jetty), Washington

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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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Wind Forecast for Portland, OR (19,4,5,8)

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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.