James Island to Point Grenville WA out 10 to 60 NM Marine Forecast
| Tonight...Sw Wind 5 To 15 Kt. Wind Waves 1 To 3 Ft. W Swell 7 Ft At 9 Seconds. |
| Fri...Nw Wind 5 To 15 Kt Becoming 10 To 20 Kt In The Afternoon. Wind Waves 2 To 4 Ft. W Swell 7 Ft At 9 Seconds. |
| Fri Night...Nw Wind 10 To 20 Kt Becoming W 5 To 15 Kt After Midnight. Wind Waves 1 To 3 Ft. W Swell 6 To 8 Ft At 9 Seconds Subsiding To 5 To 6 Ft At 9 Seconds After Midnight. |
| Sat...Sw Wind 5 To 15 Kt Becoming S 15 To 20 Kt In The Afternoon. Wind Waves 1 To 3 Ft. W Swell 5 Ft At 12 Seconds. |
| Sat Night...Sw Wind 15 To 20 Kt. Wind Waves 2 To 3 Ft. W Swell 6 Ft At 11 Seconds. |
| Sun...W Wind 15 To 20 Kt. Wind Waves 1 To 3 Ft. W Swell 9 Ft At 11 Seconds. |
| Sun Night...W Wind 15 To 20 Kt. Wind Waves 1 To 3 Ft. W Swell 9 Ft At 11 Seconds. |
| Mon...Sw Wind 5 To 15 Kt. Wind Waves 1 To 2 Ft. W Swell 8 Ft. |
| Tue...S Wind 5 To 15 Kt. Wind Waves 1 To 2 Ft. W Swell 7 Ft. |
| Area Forecast Discussion National Weather Service Seattle WA 214pm PDT Thu April 25 2024 Synopsis Rain will turn to showers across Western Washington tonight as a weakening frontal system moves across the area. A few showers will remain into Friday as an upper trough remains over the region. A series of fronts will maintain wet conditions and below normal temperatures well into the coming week. Short Term - Tonight Through Sunday It's a damp and cool afternoon across Western Washington as a weakening front moves into the area. Rain will turn to showers overnight as a trailing upper trough moves onshore. Showers will diminish by Friday afternoon into Friday evening as low amplitude upper ridging pushes into the coastal waters. The ridge flattens quickly by Saturday morning as the next in a series of fronts arrives. Precip coverage will increase on Saturday, but the overall Quantitative Precipitation Forecast will be lighter than that of today. Another front arrives Sunday afternoon into Sunday night. Snow levels in the Cascades generally stay in the 4000 to 5000 foot range through the weekend. With unsettled conditions in place, temperatures will remain below seasonal norms throughout Western Washington. Long Term - Monday Through Thursday The extended forecast period begins much the same as the short term with another front spreading precipitation across the area Monday into Monday night. More uncertainty creeps into the day to day forecast details Tuesday and beyond. The overall pattern remains unsettled heading into the middle of next week as the mean trough position remains over the Pacific Northwest. However, the flow is looking increasingly zonal by that point in time. This results in considerable timing differences amongst deterministic model runs as well as noteworthy differences between the height anomalies in the ensemble means. So, while it looks to remain unsettled, temperatures and Probability of Precipitation may begin to edge at least a little closer to seasonal normals by late next week. 27 Marine A low pressure system and associated cold front is located just offshore of western Washington and will continue to work its way through the region tonight into tomorrow. Winds across the area will ease down tonight. A weak surface ridge will move through Saturday morning but will be quickly followed by another front on Saturday afternoon. The active pattern continues into next week with additional systems moving through. While conditions will be breezy, widespread additional headlines are not expected with winds staying around or just below Small Craft Advisory thresholds. The Small Craft Advisory will end for the coastal waters south of Point Grenville this afternoon, and for the East Strait of Juan de Fuca and Admiralty Inlet early this evening. Seas 6 to 8 ft at 10 s continue through the end of the week, rising to 8 to 10 ft by Sunday and into the beginning of next week. LH Hydrology No river flooding expected in the next 7 days. However, recent rains over the south slopes of the Olympics could push the Skokomish River in Mason county close to action stage on NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...Small Craft Advisory until 11pm PDT this evening for Admiralty Inlet East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 5pm PDT this afternoon for 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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