Point Grenville to Cape Shoalwater WA out 10 NM Marine Forecast
| Today...S Wind 5 To 10 Kt, Veering To Sw Late This Morning, Then Becoming Nw 10 To 15 Kt Early This Afternoon, Rising To 15 To 25 Kt Late. Seas 4 To 5 Ft, Building To 5 To 7 Ft This Afternoon. Wave Detail: S 3 Ft At 6 Seconds, Nw 7 Ft At 9 Seconds. Rain. |
| Tonight...Nw Wind 20 To 25 Kt. Seas 9 To 12 Ft. Wave Detail: S 2 Ft At 6 Seconds And W 11 Ft At 11 Seconds. A Chance Of Rain In The Evening, Then Rain Likely After Midnight. |
| Sun...Nw Wind 15 To 20 Kt, Easing To 10 To 15 Kt In The Afternoon. Seas 8 To 11 Ft, Subsiding To 7 To 9 Ft In The Afternoon. Wave Detail: Nw 10 Ft At 10 Seconds. Rain. |
| Sun Night...Nw Wind 5 To 10 Kt, Becoming Ne 10 To 15 Kt After Midnight. Seas 5 To 8 Ft. Wave Detail: Nw 7 Ft At 10 Seconds. Rain. |
| Mon...Ne Wind 10 To 15 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 6 Ft At 10 Seconds. A Chance Of Rain In The Morning. |
| Mon Night...Ne Wind 5 To 10 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 5 Ft At 9 Seconds And W 2 Ft At 19 Seconds. |
| Tue...E Wind 5 To 10 Kt, Backing To N In The Afternoon. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 9 Seconds And W 2 Ft At 17 Seconds. |
| Tue Night...N Wind 5 To 10 Kt, Veering To Ne After Midnight. Seas Around 4 Ft. Wave Detail: Nw 3 Ft At 9 Seconds And W 2 Ft At 15 Seconds. |
| Wed...Ne Wind Around 5 Kt, Backing To W Around 5 Kt In The Afternoon. Seas Around 4 Ft. Wave Detail: Nw 3 Ft At 8 Seconds And W 3 Ft At 14 Seconds. |
| Wed Night...Nw Wind Around 5 Kt. Seas 4 To 5 Ft. Wave Detail: Nw 4 Ft At 8 Seconds And W 3 Ft At 14 Seconds. |
| Area Forecast Discussion National Weather Service Seattle WA 904am PDT Sat Oct 11 2025 Synopsis Cool and unsettled conditions continue across Western Washington this weekend and linger into early next week. A system moving southward from British Columbia Sunday will bring the first noteworthy high elevation snow of the season. Drier conditions will return toward the middle of next week as high pressure rebuilds over the region, followed by typical autumnal conditions later next week. Short Term - Today through Monday A cooler air mass today with showers over the area. Highs are only in the mid to upper 50s. Short term trends are on track. 33 Previous discussion...Showers remain scattered across Western Washington early this morning with a few clusters of enhanced activity in the onshore flow around the approaching upper trough. Expect lingering showers in the Cascades today and tonight, but a break in between disturbances is likely. However, conditions remain cool and cloudy even if drier. An upper level shortwave moving southward through British Columbia will then bring another wave of precipitation back into Washington from the north. This system will also bring snow levels lowering from around 4000-6000 feet initially Sunday, down to 2500 ft or so in the North Cascades. NBM continues to highlight 60-75% chance of 8 inches or more above 5000 feet over the northern portions of the Cascades, and the winter weather advisory remains in effect to reflect the potential impacts from this early season snow at the higher mountain elevations. Snow levels will remain a little higher across this southern portions of the Washington Cascades. This will likely result in and inch or two at Stevens Pass and little to no accumulation down at Snoqualmie (though expect rain/snow mix at times late Sunday). Additional snow accumulations are expected at Paradise at Mt Rainier, where latest webcam imagery suggests some flakes are already in the air as the temperature has fallen to around the freezing mark. The bottom line is that those who plan to head into the higher mountain elevations this weekend should be prepared to encounter snow and cold conditions and closely monitor the weather forecast in the next few days. 12 Long Term - Tuesday Through Friday Ensemble guidance continues to favor the upper low tracking south into California. This begins to push the precipitation chances away from the region, bringing a drier trend and decreasing cloud cover. This will bring some elevated concern for morning frost Monday and Tuesday as clearing skies and light winds yield efficient cooling and temperatures may reach the mid to upper 30s for the sheltered interior locations away from the water. After a few dry days, guidance favors a return of a more active pattern, and associated precipitation chances, late in the week. 12 Marine High pressure will briefly build in over the coastal waters today as the trough along the coast pushes inland this morning. Winds will begin to increase over the coastal waters later this morning, mostly to Small Craft Advisory criteria, except to gale force in the outer coastal waters north of Point Grenville. Winds will increase a bit through the Strait of Juan de Fuca as well, but should remain below advisory criteria. Some gusts to 20-25 kt cannot be ruled out, however, this afternoon through tonight. Winds will begin to ease early Sunday morning, through there will not be much of a break. A low pressure system will begin to form along the southern coast of Vancouver Island Sunday evening and move southward along the coast on Monday. Winds will begin to turn offshore by around midnight Monday morning, with Small Craft Advisory winds once again through the outer coastal waters on Monday. Northeasterly winds look to also reach advisory level through the Northern Inland Waters and portions of the East and Central Strait of Juan de Fuca. Winds look to ease Monday night as broad high pressure begins to build back in for much of the rest of next week. Seas currently around 6 ft this morning will rise to around 12-15 ft by tonight. Seas will be steep with a dominant period of around 10 to 11 seconds. Seas will gradually subside Sunday, becoming around 5 to 8 ft by Monday evening. 62 NOAA Seattle WA Office: Watches - Warnings - Advisories WA...Winter Weather Advisory from 5am Sunday to 5am PDT Monday for Cascades of Whatcom and Skagit Counties. PZ...Small Craft Advisory from 8pm this evening to 5pm PDT Sunday for Grays Harbor Bar Small Craft Advisory from 5pm this afternoon to 5pm PDT Sunday for Coastal Waters From Cape Flattery To James Island Out 10 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm- Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm. Gale Warning until 2pm PDT Sunday for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm- Coastal Waters From James Island To Point Grenville 10 To 60 Nm. Small Craft Advisory until 5pm PDT Sunday for Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm. |
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