Point Grenville to Cape Shoalwater WA out 10 to 60 NM Marine Forecast
| Rest Of Today...Sw Wind 30 To 35 Kt With Gusts Up To 45 Kt, Becoming W 20 To 25 Kt. Seas 21 To 24 Ft, Subsiding To 18 To 23 Ft This Afternoon. Wave Detail: S 3 Ft At 10 Seconds And Sw 24 Ft At 14 Seconds. A Slight Chance Of Tstms. |
| Tonight...W Wind 15 To 20 Kt, Becoming Sw 10 To 15 Kt After Midnight. Seas 14 To 18 Ft, Subsiding To 11 To 14 Ft After Midnight. Wave Detail: S 4 Ft At 9 Seconds And W 18 Ft At 13 Seconds. Showers Likely In The Evening, Then A Chance Of Rain After Midnight. |
| Sun...S Wind 10 To 15 Kt, Becoming Se 15 To 20 Kt In The Afternoon. Seas 9 To 11 Ft, Subsiding To 8 To 9 Ft In The Afternoon. Wave Detail: Sw 4 Ft At 9 Seconds And W 10 Ft At 11 Seconds. Rain. |
| Sun Night...Se Wind 25 To 30 Kt, Easing To 20 To 25 Kt After Midnight. Seas 9 To 12 Ft. Wave Detail: S 12 Ft At 10 Seconds And W 7 Ft At 12 Seconds. Rain. |
| Mon...S Wind 15 To 20 Kt. Seas 11 To 12 Ft, Subsiding To 10 Ft In The Afternoon. Wave Detail: S 12 Ft At 11 Seconds And W 3 Ft At 12 Seconds. Rain. |
| Mon Night...S Wind 15 To 20 Kt. Seas 10 To 12 Ft, Building To 12 To 13 Ft After Midnight. Wave Detail: S 5 Ft At 10 Seconds And Sw 13 Ft At 14 Seconds. Rain. |
| Tue...S Wind 20 To 25 Kt. Seas 12 To 14 Ft. Wave Detail: S 2 Ft At 8 Seconds And Sw 14 Ft At 14 Seconds. Rain. |
| Tue Night...S Wind 20 To 25 Kt. Seas 10 To 13 Ft. Wave Detail: Sw 13 Ft At 12 Seconds. Rain Likely. |
| Wed...S Wind 15 To 20 Kt, Easing To 10 To 15 Kt In The Afternoon. Seas 10 To 12 Ft. Wave Detail: S 11 Ft At 11 Seconds And Sw 11 Ft At 14 Seconds. Rain Likely, Mainly In The Morning. |
| Wed Night...S Wind 10 To 15 Kt, Becoming Se 15 To 20 Kt After Midnight. Seas 11 To 14 Ft, Building To 14 To 16 Ft After Midnight. Wave Detail: Sw 16 Ft At 14 Seconds. A Chance Of Rain. Winds And Seas Higher In And Near Tstms. |
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Area Forecast Discussion National Weather Service Seattle WA 913am PST Sat Dec 14 2024 Some updates were made to the wind forecast this morning to account for stronger conditions throughout Puget Sound, including changes to wind headlines. Additionally, some changes were made to the marine forecast as the Grays Harbor Bar report came in with 21 foot waves. That will be discussed in the marine section below. Synopsis A strong frontal system moving into Western Washington today will produce gusty winds, lowland rain, mountain snow, and high surf conditions. Coastal flooding is expected to impact the shorelines throughout the weekend. A series of additional frontal systems will cross the area into the middle of next week. Short Term - Today through Monday A strong low pressure system is making its way into Vancouver Island this morning, accounting for the windy and rainy conditions in western Washington. Note the changes that were made in the update section previously, but the rest of the previous discussion captures the hazards well and can be found below. Winter Weather: To start, a Winter Storm Warning has been upgraded from a previous advisory for the North Cascades at elevations 3500 ft or greater. Snow totals up to 1 to 2 ft are expected through Sunday morning. Winter Weather Advisories remain for the Central/Southern Cascade zones for areas 3500 ft or greater through Sunday morning with up to 8 to 12 inches. SSW winds along the face of Mt. Baker has lead to impressive totals so far with 14" observed since Friday afternoon with more expected through tonight. Wind: The aforementioned surface low has deepened considerably allowing a decent offshore gradient to set up from Quillayute to Bellingham. As a response, strong winds are expected as a High Wind warning remains for the North Coast with gusts upwards of 55 to potentially 60 mph. HREF guidance indicates a 80% chance of gusts greater than 55 mph through midday today for locations such as Neah Bay, La Push, etc. A Wind Advisory also continues for the Central Coast, San Juan Islands, and Inland locations such as W Whatcom, W Skagit, and Admiralty Inlet to name a few. Any lingering wind related headlines should be allowed to expire this afternoon. Breezy conditions are expected throughout Puget Sound and a wind advisory has been issued there as well. High Surf & Coastal flooding: Big waves have been generated by this disturbance as seas as high as 20 ft have been observed offshore near Buoy 46041. Large breaking waves up to 20 ft are expected in the surf zone. Storm surge along with the current high tide cycle will lead to the possibility of 2.00 to 3.50 ft of water above ground level for shorelines and low-lying areas along the Pacific and Strait of Juan de Fuca Coasts and San Juan's through this afternoon where a Coastal Flood Warning has been issued. A Coastal Flood Advisory continues for both W Whatcom and W Skagit counties through this afternoon as well with inundation up to 2 ft possible for shorelines. Showers are to remain in the forecast for Sunday as we'll see somewhat of a brief reprieve. Upper-ridging will track overhead as guidance has us in between systems. However, late Sunday night into Monday the next frontal disturbance is line to arrive with another shot of widespread precipitation. High temperatures throughout the short-term forecast will remain in the 40s with overnight lows in the 30s and 40s. Long Term - Tuesday Through Friday Confidence in the pattern going into next week is rather low. Generally, the ensembles are trying to signal an upper-ridge over the Intermountain West by the midweek. This places western Washington on the periphery of the mentioned ridge, leaving us susceptible to a potential atmospheric river. The 12Z ECMWF (European Centre for Medium-Range Weather Forecasts) ensembles have zoned in on this, but other model ensembles are not in favor. Additional disturbance are likely through the remainder of the week but again, confidence is not particularly high at this time. Marine A strong surface low near 982 millibars is making landfall over central Vancouver Island this morning. An associated back bent occlusion will continue to produce very gusty winds across area waters through this afternoon before the surface low weakens over southern British Columbia later today. Gales continue all waters with coastal seas over 20 feet. Winds will begin to relax tonight and seas will gradually subside, but it will be late Sunday morning at the earliest before coastal seas drop back below 10 feet. Weak surface ridging briefly rebuilds over the waters late tonight and early Sunday before another frontal system approaches the offshore waters. This front will be weaker, but is likely to generate small craft advisory conditions for the coastal waters and portions of the inland waters Sunday night into Monday. A series of additional systems are likely to follow throughout much of next week for continued unsettled conditions and seas remaining hazardous over the coastal waters more often than not. 27 Hydrology Latest guidance still has been uncertain regarding rainfall amounts in the Olympics, with overall totals being a touch higher than previous forecasts. Area rivers will still rise, with only the Skokomish River being expected to reach near action stage. Even with the slightly higher Quantitative Precipitation Forecast amounts, the Skokomish River still is forecasted to barely reach action stage today. This will continued to be monitored as more guidance becomes available. Additional rounds of precipitation could keep the Skokomish river at or near flood stage into early next week. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...Coastal Flood Warning until 9am PST this morning for San Juan County. Wind Advisory until 4pm PST this afternoon for Admiralty Inlet Area-Bremerton and Vicinity-Central Coast-Everett and Vicinity-Hood Canal Area-San Juan County-Seattle and Vicinity-Tacoma Area-Western Skagit County-Western Whatcom County. Coastal Flood Advisory until 9am PST this morning for Western Skagit County-Western Whatcom County. Coastal Flood Warning until 3pm PST this afternoon for Eastern Strait of Juan de Fuca-Western Strait of Juan De Fuca. High Wind Warning until 1pm PST this afternoon for North Coast. High Surf Advisory until 4pm PST this afternoon for Central Coast-North Coast. Coastal Flood Warning until 2pm PST this afternoon for Central Coast-North Coast. Winter Storm Warning until 10am PST Sunday for West Slopes North Cascades and Passes. Winter Weather Advisory until 10am PST Sunday for West Slopes North Central Cascades and Passes-West Slopes South Central Cascades and Passes. PZ...Small Craft Advisory until 4am PST Sunday for Grays Harbor Bar Gale Warning until 4pm PST this afternoon for Admiralty Inlet 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- East Entrance U.S. Waters Strait Of Juan De Fuca- Northern Inland Waters Including The San Juan Islands- Puget Sound and Hood Canal West Entrance USA Waters Strait Of Juan De Fuca. Small Craft Advisory from 4pm this afternoon to 1am PST Sunday for West Entrance USA Waters Strait Of Juan De Fuca. Gale Warning until 10am PST this morning for Central U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 1am PST Sunday for Central U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory from 4pm this afternoon to 10am PST Sunday 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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