East Entrance U.S. waters Strait of Juan de Fuca Marine Forecast
| Tonight...W Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Wed...W Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Wed Night...W Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Thu...Nw Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Thu Night...W Wind Around 5 Kt, Backing To S After Midnight. Waves Around 2 Ft Or Less. |
| Fri...S Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Fri Night...W Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sat...W Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sat Night...W Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sun...Nw Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sun Night...W Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
| Area Forecast Discussion National Weather Service Seattle WA 835pm PDT Tuesday September 15 2026 Synopsis Cloudy skies will continue to scatter today as high pressure promotes a warming and drying trend through Thursday. Near normal temperatures and partly cloudy conditions are expected to return through the weekend and into early next week with continued low level onshore flow. Short Term - Tonight Through Thursday Night Clouds have slowly scattered this evening leaving most areas partly cloudy. Cloud cover will continue to decrease this evening, but with winds decreasing, that will open the door for some localized patchy fog in sheltered areas and river valleys. Lows tonight remain on track for the mid 40s to low 50s. 62 A high pressure ridge will slowly build into the region tonight through Thursday, bringing a warming and drying trend to western Washington. Temperatures will warm up to near-normal Wednesday under mostly clear skies, with highs generally in the mid 70s. A thermal trough building along the coast will shift inland on Thursday, inducing cooling along the coast with even warmer temperatures further inland. Temperatures Thursday will be the warmest of the week, with highs in the mid to upper 70s and around 80 degrees for some areas along the Cascade foothills and valleys and over the southern Interior. 15 Long Term - Friday Through Tuesday High pressure offshore will continue to influence the weather pattern over the weekend and into early next week, maintaining seasonable temperatures and dry conditions. Onshore flow will continue to promote morning cloud cover with plenty of sun breaks in the afternoons. Forecast models continue to hint at a potential pattern change early next week, though deterministic models continue to push back the timing of an approaching trough as the Pacific ridge holds on. 15 Marine A thermal trough will build low pressure along the coast Wednesday into Thursday. This will cause the winds to briefly turn offshore. Once the thermal trough moves inland on Friday, the onshore flow will return with weak systems passing to the north this weekend. The likelihood of winds reaching headline thresholds during the next seven days is low, but portions of the coastal waters and the Strait of Juan de Fuca may see gusts approaching 20-25 kt as the weak system looks to move through early next week. Seas will hold around 3-6 ft through the forecast period. HPR/62 Fire Weather A brief warming and drying trend will kick off today and continue into Thursday as high pressure builds offshore. Surface winds will briefly turn offshore on Wednesday as a thermal trough builds along the Pacific coast. Weak offshore flow will continue through Thursday, causing additional drying with relative humidity values bottoming out in the mid 20s to low 30s in the North Cascades and lowlands south of the Puget Sound. The thermal trough will shift inland on Thursday ahead of the return of onshore flow, which will minimize fire weather concerns through the weekend and into early next week. 15 NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...None. |
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