Skamokawa Valley, WA Marine Weather and Tide Forecast
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Marine Weather and Tide Forecast for Skamokawa Valley, WA

June 15, 2024 1:56 PM PDT (20:56 UTC) Change Location
Sunrise 5:17 AM   Sunset 9:06 PM
Moonrise 1:49 PM   Moonset 12:54 AM 
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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- 148 Pm Pdt Sat Jun 15 2024

In the main channel -

General seas - 5 to 6 ft subsiding to 4 ft Sunday noon.

First ebb - Ebb current of 2.68 kt at 1216 pm Saturday. Seas 5 to 6 ft.

SEcond ebb - Ebb current of 3.85 kt at 109 am Sunday. Seas 5 ft.

Third ebb - Ebb current of 2.45 kt at 116 pm Sunday. Seas 4 ft.

PZZ200 148 Pm Pdt Sat Jun 15 2024

Synopsis for the southern washington and northern oregon coast - Front has moved through the area, maintaining post-frontal showers and onshore flow. Seas will stay 5-6 ft through the weekend. The next impactful system looks to be expected towards the latter part of next week which could result in marginal small craft winds.

7 Day Forecast for Marine Location Near Skamokawa Valley, WA
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Area Discussion for - Portland, OR
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Area Forecast Discussion...UPDATED National Weather Service Portland OR 946 AM PDT Sat Jun 15 2024

Aviation Discussion Updated...

Low pressure brings cool and showery weather with a chance of thunderstorms today and Sunday. The best chances will be in the afternoon across northern portions of the forecast area. Cool and showery conditions last into Monday, then warmer and drier weather returns Tuesday through the end of next week.

Now through Monday Night...The pattern change is well underway this morning as an upper level low centered over Vancouver Island brings about a shift to cooler and wetter weather which will persist through the next few days. Water vapor imagery depicts a well defined shortwave embedded within the larger scale trough swinging across western Oregon and spurring an increase in shower activity across our area as a weak surface front approaches the coast. Upper level troughing will maintain widespread showers across much of the area today in the post frontal air mass, with coverage generally decreasing with southward extent and becoming a little spottier in nature around Eugene by this afternoon. Model QPF amounts remain on track from previous runs, depicting 0.50-0.75" and locally higher amounts across the north Oregon and south Washington Cascades through late this evening, but generally a quarter inch or less across most other locations. Rain amounts will be somewhat variable across the area given the hit or miss nature of the activity, with locally higher amounts possible in heavier showers.

Abundant cloud cover will help to hold temperatures 7-10 degrees below seasonal norms across the area today, with highs struggling to reach the mid 60s in most locations. Both NBM and SREF probabilistic guidance remain rather bullish on thunderstorm potential as colder air filtering into the region aloft serves to steepen mid level lapse rates. Have tempered these expectations somewhat in the forecast as this potential will be at least in part dependent on getting some breaks of sun and resulting surface heating to generate sufficient instability. Additionally, the most favorable jet dynamics and upper level support are somewhat mistimed as they will be departing the area by later this morning, and no upstream lightning strikes have been noted in association with these features thus far overnight. Despite those caveats, a few rumbles of thunder are certainly possible across the area through this evening. While the best chances will generally be focused along and north of the Columbia River into southwest Washington, a few strikes will be possible as far south as Eugene through this afternoon.

The cool and showery weather will persist over the region on Sunday as upper level troughing remains in place, with highs across the area similar to today. Shower activity will increase again in the afternoon as the main upper low shifts southeast across Washington and Oregon, bringing a renewed chance of thunderstorms across the north through early evening. The area will begin to dry out but remain cool on Monday as northwest flow takes hold behind the trough departing into the Rockies, with light shower activity mostly confined to the higher terrain and winding down through Monday night. /CB

Tuesday through Friday...Warmer weather looks to return Tuesday through the end of next week as WPC ensemble clusters agree on the weakening of the trough over the western CONUS and subsequent increasing 500 mb heights across the Pacific Northwest. Guidance suggests temperatures will rebound back above normal into the upper 70s to low 80s by Tuesday as this occurs. Wednesday and Thursday then appear to be the hottest days of the coming week as most deterministic solutions depict a weak Rex Block developing with a low amplitude ridge over western Canada and an open trough over northern California.
This results in rather high confidence in NBM temperature spreads showing highs in the mid to upper 80s for areas away from the coast both Wednesday and Thursday, with only around a 25 percent chance to reach 90 from Portland to Salem and closer to a 10 percent chance around Eugene. /CB

Post-frontal showers will linger until late this evening, with intermittent rain showers briefly lowering CIGs to MVFR along the coast until around 19Z Saturday (20% probability).
Inland terminals should remain in low-end VFR conditions throughout the TAF period, with the exception of current MVFR CIGs at KSLE/KUAO, but should improve after 18-19Z Saturday.

Isolated thunderstorms possible until 03Z Sunday (10-20% probability), primarily north of KSLE. Any thunderstorms will have the potential to produce small hail along with gusty and erratic winds. Breaks in cloud cover this morning give increased confidence in the occurrence of isolated thunderstorms this afternoon, however these post-frontal showers may not remain robust through the afternoon as they began very early this morning.

Otherwise, southwesterly winds will slightly strengthen and gradually turn westerly into late this morning (around 19-20Z).
These westerly winds will remain elevated to 10-15 kt with gusts up to 20 kt until 00-03Z Sunday. Winds will become light and variable thereafter, persisting into tonight.

PDX AND APPROACHES...Post-frontal showers will linger until late this evening, with predominantly VFR conditions through the TAF period. Possible isolated thunderstorms (20% probability) until 03z Sunday. Breaks in cloud cover have become more frequent this morning, which will aid in thunderstorm development, however showers may not remain robust enough into this afternoon due to the early transition from rain to post-frontal showers this morning.

Fairly innocuous conditions for the near future. Seas remain around 5 to 7 ft at 9 to 11 seconds. Post-frontal weather currently bringing slightly stronger west winds no stronger than 20 kt through daytime hours Saturday. These decrease again going into Saturday night. Late Sunday/early Monday strong northwesterly winds will return and will likely bring marginal Small Craft Winds to all waters. There is still some uncertainty in the timing and strength of the Monday system /42/JLiu



Weather Reporting Stations
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Stations Dist Age Wind AirWater WavesinHgDewPt
LOPW1 - 9440422 - Longview, WA 29 mi57 min 62°F30.14
46243 - Clatsop Spit, OR - 162 36 mi61 min 58°F5 ft
KLMW1 38 mi57 min 30.14
TOKW1 - 9440910 - Toke Point, WA 41 mi57 minW 12G17 58°F30.17

Wind History for Astoria, OR
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Airport Reports
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AirportDistAgeWind ktVisSkyWeatherAirDewPtRHinHg
KAST ASTORIA RGNL,OR 24 sm61 minW 14G2110 smMostly Cloudy Lt Rain 59°F46°F63%30.15
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Wind History graph: AST
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Tide / Current for Skamokawa, Steamboat Slough, Washington - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
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Skamokawa, Steamboat Slough, Washington - IGNORE HEIGHTS, Tide feet

Tide / Current for Cathlamet, Washington - IGNORE HEIGHTS
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Tide / Current data from XTide NOT FOR NAVIGATION
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Cathlamet, Washington - IGNORE HEIGHTS, Tide feet

Weather Map
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GEOS Local Image of Pacific Northwest   

Portland, OR,

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