Cape Flattery to James Island WA out 10 NM Marine Forecast
| Tonight...W Wind 10 To 15 Kt, Rising To 15 To 20 Kt Late This Evening, Easing To 10 To 15 Kt After Midnight. Seas 4 To 5 Ft, Building To 5 To 7 Ft After Midnight. Wave Detail: W 6 Ft At 7 Seconds And W 3 Ft At 15 Seconds. A Chance Of Showers With A Slight Chance Of Tstms Early This Evening. A Slight Chance Of Rain Late This Evening. A Chance Of Showers With A Slight Chance Of Tstms Late. |
| Fri...Sw Wind 10 To 15 Kt. Seas 6 To 7 Ft. Wave Detail: W 6 Ft At 7 Seconds And W 7 Ft At 14 Seconds. Rain In The Morning, Then Showers In The Afternoon. |
| Fri Night...W Wind 10 To 15 Kt. Seas 7 To 8 Ft. Wave Detail: Nw 2 Ft At 5 Seconds And W 8 Ft At 14 Seconds. Rain. |
| Sat...Nw Wind 10 To 15 Kt, Rising To 15 To 20 Kt In The Afternoon. Seas 8 To 9 Ft, Building To 9 To 11 Ft In The Afternoon. Wave Detail: Nw 3 Ft At 5 Seconds And W 10 Ft At 12 Seconds. A Chance Of Rain. |
| Sat Night...Nw Wind 15 To 20 Kt. Seas 8 To 10 Ft. Wave Detail: Nw 3 Ft At 6 Seconds And W 10 Ft At 12 Seconds. |
| Sun...Nw Wind 5 To 10 Kt. Seas 6 To 8 Ft, Subsiding To 5 To 6 Ft In The Afternoon. Wave Detail: Nw 2 Ft At 5 Seconds And W 7 Ft At 11 Seconds. |
| Sun Night...Nw Wind 10 To 15 Kt. Seas 5 To 6 Ft. Wave Detail: Nw 3 Ft At 5 Seconds And W 5 Ft At 10 Seconds. |
| Mon...W Wind 5 To 10 Kt. Seas 5 To 7 Ft. Wave Detail: Nw 2 Ft At 4 Seconds And W 7 Ft At 15 Seconds. |
| Mon Night...W Wind 5 To 10 Kt. Seas 7 To 9 Ft. Wave Detail: Nw 4 Ft At 5 Seconds And W 9 Ft At 14 Seconds. A Chance Of Rain In The Evening. |
| Tue...Nw Wind 5 To 10 Kt, Rising To 10 To 15 Kt In The Afternoon. Seas 8 To 9 Ft. Wave Detail: Nw 7 Ft At 7 Seconds And W 9 Ft At 14 Seconds. |
| Tue Night...Nw Wind 10 To 15 Kt, Easing To 5 To 10 Kt After Midnight. Seas 5 To 6 Ft. Winds And Seas Higher In And Near Tstms. |
| Area Forecast Discussion National Weather Service Seattle WA 1248pm PDT Thu May 14 2026 Synopsis A pair of weather systems will produce showers and unseasonably cool conditions across Western Washington on Friday and Saturday. Drier and gradually warmer conditions will develop early next week as a weak upper level ridge begins to rebuild into the region. Short Term - Tonight Through Saturday Night The next in series of frontal systems will spread showers and breezy winds across Western Washington into tonight. A secondary, stronger system will quickly follow Friday afternoon into Friday night with a trailing upper trough settling over the area on Saturday. High temperatures both days will be as much as 10 to 13 degrees below normal. Along with the cool air mass will come some instability for isolated thunderstorm activity. The best probabilities for any storms will be on Saturday when the upper trough axis is overhead and a fairly potent convergence zone is likely to form Saturday afternoon. Snow levels will fall to 3500 to 4000 feet in the Cascades on Saturday. As of now, accumulation at pass levels looks rather minimal, but several inches could fall higher up at places like Paradise. Long Term - Sunday Through Thursday The upper trough axis will shift eastward on Sunday as low amplitude upper ridging slowly begins to build into the area. This should allow most of the area to dry out with temperatures trending upward a notch...though still a bit below normal. Heigheights continue to rise into Monday and Tuesday...though probably not enough to prevent a weak system passing to our north from clipping the region with some clouds and perhaps a couple showers across the North Interior and coast. Looking toward the middle of next week and beyond, ensemble height anomalies keep persistent upper troughing in place across the western Canadian provinces...which suggests that we'll struggle to get any upper ridging that lasts. It's still spring after all. Summer can wait. 27 Marine Onshore flow will continue over the weekend which will allow for daily pushes through the Strait of Juan De Fuca. Wind speeds are expected to largely remain below small craft criteria this afternoon, although some gusts up to 21 kts can be possible at times this evening. Winds will increase over the coastal waters Saturday into Sunday along with a stronger push down the Strait that may warrant headlines. Coastal seas 4 to 6 feet for much of today before rising to 7 to 9 feet tonight. Seas will then increase further on Saturday, rising from 9 to 11 feet lasting throughout Sunday. Mazurkiewicz Hydrology The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated during this time as needed. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...None. |
Seattle/Tacoma WA Radar
Northwest Radar