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Marine Weather and Tides Chinook, WA Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 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.

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Sunrise 5:31AM

Sunset 9:10PM

Sunday July 12, 2020 1:34 AM PDT (08:34 UTC)

Moonrise 12:00AM

Moonset 12:22PM

Illumination 56%

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 120338 AFDPQR

Area Forecast Discussion National Weather Service Portland OR 840 PM PDT Sat Jul 11 2020

SYNOPSIS. Aside from a chance for light rain tonight and Sunday, expect primarily dry conditions with temperatures remaining near average for much of the next week.

SHORT TERM. Tonight through Tuesday . No changes. Previous discussion follows. A weak front continues to advance to the coast this afternoon. NWS radar and satellite shows two distinct bands of pcpn, one extending southwest from Forks, WA and the other also extending southwest from near Hoquiam, WA and moving into Pacific county, WA. Satellite shows there is not much clouds/showers west of the front but the water vapor loop shows a shortwave near 133 west moving to the base of the trough. This would tend to slow down the eastward progress of the front. As a result low chances for pcpn will continue into Sunday - mainly for the north coast/coast range zones, interior zones in SW WA, and north Willamette Valley as the front dissipates. The increased cloud cover to begin Sunday and cooler temperatures aloft should result in high temperatures cooling several degrees from today across the Willamette Valley and Columbia River Gorge. Models are in reasonable agreement a low amplitude ridge will shift towards the region late Sunday through Tuesday. This should result in morning clouds being primarily limited to our northern coastal zones and lower Columbia River valley each morning and inland high temperatures warming back into upper 70s to low 80s Monday and Tuesday. /mh /Neuman

LONG TERM. Tuesday night through Saturday . No changes. Previous discussion follows. Upper level ridging will continue to reside over the northeast Pacific and Four Corners regions. This will maintain near zonal flow across the region resulting in seasonal temperatures and variations on marine layer influence. But model divergence brings increasing uncertainty especially later in the week. 12Z operational ECMWF offer a front dropping in from the northwest on late Thu into Fri bringing some rain to the far nw zones. The 12Z GFS remains dry. NBM guidance incorporating a wide range of models and ensembles actually suggests rain chances across our far northern zones are slightly higher Thursday and Friday. Despite the latest EC solution didn't have a reason to argue with NBM guidance so deviations were minimal. /Neuman

AVIATION. A cold front will move onto the coast late tonight after 08Z, and slowly move inland Sunday morning. The front brings a chance of showers to the north part of the area, mainly north of KSLE. Inland TAF locations can expect primarily VFR conditions over the next 24 hours, with ceilings bottoming out between 3500 and 5000 feet between 11Z and 20Z. Along the coast there is a good chance of MVFR ceilings developing early Saturday night ahead of the front, before returning to VFR conditions after 20Z. There is a chance of ceilings dipping down to high end IFR along the north part of the coast, mainly between 09Z and 15Z.

KPDX AND APPROACHES . No concerns for the next 24 hours. VFR flight conditions are expected to continue with cigs most likely staying above 4000 ft AGL through 00z Monday. A few stray sprinkles are possible after 00z Sunday, ahead of an approaching cold front. -TK

MARINE. No changes. Previous discussion follows. A weak front will move across the waters this evening before pushing inland tonight. Off and on light stratiform rain will be possible ahead of the front, with scattered light showers behind the front. Wind speeds are not expected to increase much with this frontal passage, but rather a notable wind shift from southwesterly to northerly. Once northerly winds develop behind the front on Sunday morning, expect an increase in wind speeds beginning Sunday afternoon. The strongest winds will occur across the southern waters, mainly between 00z Monday and 03z Tuesday when winds will increase to 15 to 20 kt with gusts as high as 25 kt. This will lead to steep, choppy seas with the latest NWPS guidance hinting at the possibility of periods of square seas. Therefore, a Small Craft Advisory has been issued for the southern waters.

The remainder of the work week will feature the continuation of northerly winds, becoming gusty at times during the late afternoon and evening hours. Seas should gradually build through the week, with significant wave heights rising to 5 to 8 ft for Wednesday through Friday. Seas may become steep and choppy again each day, depending on how strong northerly winds get. Based on the orientation of the surface pressure gradient, the latest model guidance seems to be overdoing the northerly winds a bit. Although winds may stay below small craft advisory thresholds, the latest ENP guidance suggests a prolonged period of square seas Thursday through Friday. -TK

PQR WATCHES/WARNINGS/ADVISORIES. OR . None. WA . None. PZ . Small Craft Advisory from 5 PM Sunday to 8 PM PDT Monday for coastal waters from Cascade Head OR to Florence OR out 60 NM.



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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	39 min			60°F	4 ft
ASTO3 - 9439040 - Astoria, OR	11 mi	47 min	S 4.1 G 6	61°F	65°F		1020.8 hPa
46029 - COL RIVER BAR - 20NM West of Columbia River Mouth	30 mi	35 min	WSW 7.8 G 12	61°F			1021.1 hPa	60°F
TOKW1 - 9440910 - Toke Point, WA	30 mi	47 min	SSW 8.9 G 15	60°F	64°F		1020.7 hPa
46248 - Astoria Canyon, OR (179)	38 mi	39 min			61°F	5 ft
46211 - Grays Harbor, WA (036)	44 mi	39 min			60°F	4 ft
WPTW1 - 9441102 - Westport, WA	45 mi	59 min	W 12 G 16	58°F	60°F		1020.4 hPa
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR	49 mi	47 min			60°F		1022.1 hPa

Wind History for Astoria, OR

(wind in knots)    EDIT      (on/off)   Help

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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	40 min	SSW 9	10.00 mi	Overcast	62°F	55°F	80%	1020.6 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

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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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East

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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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