Puget Sound and Hood Canal Marine Forecast
| Today...S Wind Around 5 Kt, Backing To N Around 5 Kt Late. Waves Around 2 Ft Or Less. |
| Tonight...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sun...S Wind Around 5 Kt, Rising To 5 To 10 Kt In The Afternoon. Waves Around 2 Ft Or Less. A Chance Of Rain In The Afternoon. |
| Sun Night...Sw Wind 5 To 10 Kt, Becoming S 10 To 15 Kt After Midnight. Waves Around 2 Ft Or Less. Rain Likely. |
| Mon...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. Rain. |
| Mon Night...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. Rain Likely. |
| Tue...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. Rain Likely. |
| Tue Night...S Wind 10 To 15 Kt. Waves Around 2 Ft Or Less. Rain. |
| Wed...S Wind 5 To 10 Kt, Rising To 10 To 15 Kt In The Afternoon. Waves Around 2 Ft Or Less. Rain. |
| Wed Night...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. Rain, Mainly In The Evening. |
| Area Forecast Discussion National Weather Service Seattle WA 837am PDT Sat September 27 2025 Synopsis A frontal system will clip the northern portions of Western Washington today, bringing light rain. Another frontal system will move through the region Sunday through Monday bringing widespread precipitation. An active weather pattern is favored through late next week as additional frontal systems are expected to impact the region. Short Term - Today through Monday No major updates have been made this morning. See below for previous forecast discussion and updated aviation sections. Light shower activity is expected to continue throughout the day today across the northern portions of Western Washington as a frontal system clips the northern part of the region. Rainfall amounts are expected to remain light, generally 0.10 or less. However, the north coast may see up to 0.30 inches. Widespread rain is expected Sunday and Monday a frontal system pushes through Western Washington. Thunderstorms remain possible Sunday evening, with a 10%-20% chance along the coast. Another chance (10%-15%) for thunderstorms is possible along the Cascades and foothills Sunday afternoon. Rainfall amounts with this frontal system from Sunday to Monday will be around 0.25-1.00 inches for the interior and 1.00-2.00 inches for the coast. Long Term - Tuesday Through Friday Ensemble guidance continues to generally favor unsettled conditions to continue into next week, as additional frontal systems are expected to impact the region. Guidance is in good agreement that a low pressure system will drop down from the Gulf of Alaska Tuesday into Wednesday and remain offshore. However, there is some uncertainty regarding the forecast Thursday and Friday. As for Thursday, differences become apparent between the deterministic models. The GFS (Global Forecast System) model has the center of the low pressure system moving southward into Oregon/California, which favors a slightly drier solution for Western Washington. The European model has the center of the low pressure system moving inland into Western Washington, which favors a wetter solution. At this time, the majority of ensemble members (85%) seem to favor a solution similar to the European model. Uncertainty continues into Friday, with ensemble members being almost evenly split between weak ridging and troughing over Western Washington. Moreover, guidance continues to show a small chance of thunder next week, with probabilities between 10%-20%. 29 Marine An approaching frontal system will bring lower ceilings/visibilities and showers over the coastal waters during the afternoon with elevated seas, 8-11 ft through the weekend. An additional frontal system Sunday into Monday will maintain elevated seas at or around 7-9 ft Sunday through Monday. Ensembles now showing anywhere between 80 to 100% odds of small craft advisory winds and gusts over the coastal waters, and the interior waters (particularly East Strait of Juan de Fuca and Northern Inland Waters) Sunday into Monday. A stronger system digging southward from Alaska Tuesday and Wednesday will likely increase seas up to 10-15 ft Tuesday into Thursday, with increased odds of strengthened south winds in the coastal waters, Strait of Juan de Fuca and interior waters. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...Small Craft Advisory until 5pm PDT this afternoon for Coastal Waters From Cape Flattery To James Island Out 10 Nm. Small Craft Advisory until 11pm PDT this evening 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- Coastal Waters From Point Grenville To Cape Shoalwater 10 To 60 Nm. |
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