Point Grenville to Cape Shoalwater WA out 10 NM Marine Forecast
| Tonight...Sw Wind Around 10 Kt, Veering To W Late. Seas 7 To 10 Ft, Building To 9 To 13 Ft After Midnight. Wave Detail: W 2 Ft At 9 Seconds And W 13 Ft At 17 Seconds. A Chance Of Rain Early This Evening, Then Rain Likely Late This Evening And Overnight. |
| Fri...Sw Wind 5 To 10 Kt. Seas 10 To 13 Ft. Wave Detail: W 13 Ft At 16 Seconds. Rain. |
| Fri Night...W Wind 5 To 10 Kt, Veering To Nw After Midnight. Seas 8 To 10 Ft. Wave Detail: W 10 Ft At 15 Seconds. Rain. |
| Sat...N Wind 5 To 10 Kt, Rising To 10 To 15 Kt In The Afternoon. Seas 8 To 9 Ft. Wave Detail: W 9 Ft At 14 Seconds. A Chance Of Rain. |
| Sat Night...N Wind 10 To 15 Kt, Becoming Ne 5 To 10 Kt After Midnight. Seas 7 To 9 Ft. Wave Detail: W 8 Ft At 15 Seconds. |
| Sun...E Wind 5 To 10 Kt, Backing To N In The Afternoon. Seas 6 To 8 Ft. Wave Detail: S 2 Ft At 8 Seconds And W 8 Ft At 15 Seconds. |
| Sun Night...N Wind 5 To 10 Kt. Seas 6 To 7 Ft. Wave Detail: S 2 Ft At 8 Seconds And W 7 Ft At 14 Seconds. Rain Likely After Midnight. |
| Mon...Sw Wind 10 To 15 Kt. Seas 5 To 7 Ft. Wave Detail: Sw 3 Ft At 7 Seconds, W 6 Ft At 12 Seconds And W 2 Ft At 17 Seconds. Rain. |
| Mon Night...E Wind 10 To 15 Kt, Backing To Ne After Midnight. Seas 5 To 8 Ft. Wave Detail: Sw 2 Ft At 7 Seconds, W 8 Ft At 12 Seconds And W 3 Ft At 17 Seconds. Rain. |
| Tue...E Wind 10 To 15 Kt, Veering To W In The Afternoon. Seas 7 To 10 Ft. Wave Detail: W 10 Ft At 14 Seconds. Rain. |
| Tue Night...W Wind 10 To 15 Kt. Seas 8 To 10 Ft. Wave Detail: S 2 Ft At 6 Seconds And W 10 Ft At 14 Seconds. Rain. |
| Area Forecast Discussion National Weather Service Seattle WA 242pm PST Thu Feb 12 2026 Synopsis Increasing clouds ahead of an approaching weather system expected to move onshore overnight into Friday. The large scale pattern looks to remain active with cooler and unsettled weather with periods of precipitation over the region through next week. Short Term - Tonight Through Saturday Night Afternoon sunshine for many areas except for very persistent fog over the Hood Canal area this afternoon. Increasing high- and mid-level clouds working into the Olympic Peninsula ahead of an approaching front will spread inland this afternoon and evening. Widespread precipitation ahead of the front will spread inland late this evening into Friday - falling as rain over the lowlands and needed snow in the mountains. Snow levels will lower to around 2500-3000 feet by Friday afternoon - allowing snow accumulation at all of the Cascade passes. Most likely amounts in the 4 to 6 in range with slightly more, 6 to 8 inches around Mt. Baker. This system isn't expected to bring much wind to western Washington - breezy at times Friday - however winds over the offshore waters will allow waves along the Pacific Coast to build to roughly 15 to 18 feet on Friday, and beachgoers should use caution and remain aware of the unsettled seas. By Saturday precipitation will taper off with cooler temperatures settling into the area with snow levels dipping to 1800-2500 feet by Saturday afternoon. Additional snow accumulations over the mountains will be light. Temperatures will peak in the mid to upper 40s with mostly cloudy skies. Long Term - Sunday Through Thursday Ensembles continue to consistently highlight an upper level trough digging south and west of 130W into the offshore waters of California by Sunday afternoon. This leaves much of the Pacific Northwest under split flow aloft, with most variability in the forecast north of the split in western Canada and southern Alaska. An upper level shortwave trough forecast to move south out of the Alaska interior Sunday evening will break the split flow over the Pacific Northwest going into early next week Clustering analysis hints at two scenarios, one where this upper level trough digs southward over the Northeast Pacific, and the second taking the upper level trough southward along the British Columbia coast and more directly into western Washington and Oregon. The latter scenario is forecast by 44% of the ensemble members, represents the wetter scenario for much of the Pacific Northwest. Precipitation with the system is expected to start to move onto the coast early Monday morning, with cooler temperatures over the interior lowlands it is possible that this precipitation could fall as a rain snow mix as it begins to spread inland through the morning. Interestingly, the scenario with the upper level trough over western Washington would also be less likely to result in less southerly flow ahead of the front - helping keep temperatures a little cooler as that precipitation initially moves inland. In either scenario, temperatures are not expected to be cool enough for more than a rain snow mix, with no accumulation at low elevations. Snow levels around 1500-2000 feet will allow for additional accumulations over the higher terrain steady. The pattern looks to remain cool an active through the remainder of the week, with a mean upper level trough over or along the west Coast. Good news for our mountain snowpack. Marine A weak surface ridge will maintain over area waters for tonight. A front will move onshore on Friday with a secondary system to follow on Saturday. Pre-frontal southerlies on Friday may be enough to bring SCA (Small Craft Advisory) gusts for the Northern Inland waters during the morning hours. As a result, a SCA (Small Craft Advisory) has been issued as hi-res guidance suggests a 50-60% chance of gusts above 21 kt. Surface high pressure briefly builds into British Columbia Saturday night and Sunday turning the flow northerly. A series of troughs digging southward across the coastal and offshore waters will keep conditions unsettled early next week with the potential for more headlines. Seas will build over 10 feet this evening remain in the 10 to 15 foot range into the early weekend. The outer coastal waters may briefly touch 16 ft Friday morning. They may briefly subside below the 10 foot threshold Sunday into early Monday before building back into double digits again by Tuesday. 41 Hydrology No river flooding is expected over the next 7 days. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...Small Craft Advisory from 7pm this evening to 4pm PST Friday for Grays Harbor Bar Small Craft Advisory until 4pm PST Friday 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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