Puget Sound and Hood Canal Marine Forecast
| Today...S Wind 5 To 10 Kt, Rising To 10 To 15 Kt Late. Waves Around 2 Ft Or Less. A Chance Of Rain Early This Morning, Then Rain Late This Morning And Afternoon. |
| Tonight...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. A Chance Of Rain. |
| Thu...Sw Wind Around 5 Kt, Backing To S In The Afternoon. Waves Around 2 Ft Or Less. A Chance Of Rain. |
| Thu Night...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
| Fri...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
| Fri Night...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sat...N Wind Around 5 Kt, Rising To 5 To 10 Kt In The Afternoon. Waves Around 2 Ft Or Less. |
| Sat Night...N Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
| Sun...N Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
| Sun Night...N Wind 5 To 10 Kt, Easing To Around 5 Kt After Midnight. Waves Around 2 Ft Or Less. |
| Area Forecast Discussion National Weather Service Seattle WA 255am PDT Wednesday April 1 2026 Synopsis A weather system will move into the region today, bringing lowland rain, mountain snow, and gusty winds to the western Washington. Showers will linger across the Cascades into Thursday before a ridge of high pressure builds back into the region and brings warmer and drier conditions to the area Friday and into early next week. A pattern change is possible by Tuesday as troughing looks to move back into the region. Short Term - Today through Friday A low pressure system dropping southward along the BC coast will swing a frontal system across western Washington today. This system will bring the next round of lowland rain, mountain snow, and gusty winds to the area. Radar this morning is already showing some shower activity moving northward across the region ahead of the system and observations have started to show winds picking up over the coastal waters this morning. Additional details regarding the hazards have been outlined below: Winds: Expect winds to continue to increase along the coast and the eastern Strait through the early to mid-morning hours. The strongest winds are expected to be along the Pacific Coast and for areas from Whidbey Island northward, including the San Juans, where gusts between 35-40 mph will be possible at times. Elsewhere, winds will be breezy, with winds gusts between 20-30 mph expected as the front moves through. Winds will remain elevated through the early afternoon hours, before easing during the late afternoon and evening. The exception remains along the Strait of Juan de Fuca, where a post-frontal push will keep westerly winds breezy for areas along the Strait this evening and into Thursday morning. Rain: Showers will continue to move into the area ahead of the frontal system early this morning. Expect more widespread, steady rain to spread inland along the coast between 11-14Z and to make its way inland into the interior between 16-19Z. Steady rain will become more showery in the front's wake, with showers continuing across the area through the evening hours. Overall rainfall amounts remain in the ballpark of 0.25-0.75 inches for areas across the interior and between 0.5-1 inch for areas along the coast. Mountain Snow: Snow levels around pass level will rise to around 4000-4500 ft by late morning, before falling below pass levels by late tonight. Overall snowfall accumulations for the passes look to remain between 4-8 inches, with the the majority of the snow expected to fall at pass level late this evening and through Thursday morning. The parent low will then move inland across the region late tonight into Thursday morning. Wrap-around moisture from the low will keep light snow showers going across the Cascades through the late afternoon and early evening hours before tapering. Conditions across the lowlands will largely dry out on Thursday, with a few sunbreaks expected by the afternoon amongst mostly cloudy skies. High temperatures are expected to be in the 50s. A shift to warmer and drier conditions commences on Friday as a ridge of high pressure starts to build into western Washington. While a weak weather system moving into BC may clip the North Coast and Northern Interior on Friday, expect the majority of the area to remain dry. Afternoon highs will warm a couple of degrees and look to top out in the mid to upper 50s. Long Term - Friday Night Through Tuesday Ensembles remain in good agreement with a ridge of high pressure building over the region through the weekend. This will continue to promote a warming and drying trend across western Washington, with afternoon highs expected to warm a couple of degrees each day and to top out in the mid to upper 60s by Sunday. While forecast details become a bit more unclear heading into early next week, ensembles continue to hold on to the warmer trend on Monday as the ridge axis moves inland. At this time, Monday looks like it may be the warmest day across the interior, with afternoon highs expected to approach the upper 60s to near 70 for areas south of the Sound and along the Cascade foothills. Guidance then starts to hint at an upper level shortwave approaching the area by Monday afternoon, but will need to see how this trend evolves in the coming days. Either way, a pattern change looks to arrive by Tuesday as upper level troughing looks to move back into the region. 14 Marine A 990 mb surface low is moving into the region today for increasing southerlies over much of the waters. A Gale Warning remains in place with gusts exceeding 35 kts over all of the coastal waters and East Entrance. A small craft advisory continues for the Northern Interior Waters and Admiralty inlet for enhanced southerlies with an additional SCA (Small Craft Advisory) now going into effect later this evening into Thursday morning for a westerly push through the Strait. High pressure will redevelop on Thursday and into Friday, bringing lighter winds and more benign marine conditions. Coastal seas 9 to 11 ft this morning, falling to 6 to 8 ft tonight. An additional swell train will arrive on Thursday keeping seas near the 10 ft range before decreasing on Friday and into the weekend. McMillian Hydrology No river flooding is expected over the next 7 days. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...Winter Weather Advisory until 11am PDT Thursday for Cascades of Pierce and Lewis Counties-Cascades of Snohomish and Northern King Counties-Cascades of Southern King County- Cascades of Whatcom and Skagit Counties. PZ...Small Craft Advisory from 8pm this evening to 11am PDT Thursday for Central U.S. Waters Strait Of Juan De Fuca- East Entrance U.S. Waters Strait Of Juan De Fuca. Gale Warning until 5pm PDT this afternoon for East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 5pm PDT this afternoon for Admiralty Inlet Northern Inland Waters Including The San Juan Islands. Gale Warning until 11am PDT this morning for Coastal Waters From Cape Flattery To James Island 10 To 60 Nm- Coastal Waters From Cape Flattery To James Island Out 10 Nm- Coastal Waters From James Island To Point Grenville 10 To 60 Nm- Coastal Waters From James Island To Point Grenville Out 10 Nm- Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm- Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm. |
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