Admiralty Inlet Marine Forecast
| Tonight...Nw Wind 5 To 10 Kt, Backing To W After Midnight. Waves Around 2 Ft Or Less. A Slight Chance Of Showers Early This Evening, Then A Chance Of Showers Late This Evening And Early Morning. A Slight Chance Of Showers Late. |
| Mon...S Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. Showers Likely, Mainly In The Morning. |
| Mon Night...Se Wind Around 5 Kt. Waves Around 2 Ft Or Less. A Chance Of Showers In The Evening. |
| Tue...Se Wind Around 5 Kt, Rising To 10 To 15 Kt In The Afternoon. Waves Around 2 Ft Or Less. A Chance Of Rain In The Morning, Then Rain In The Afternoon. |
| Tue Night...Se Wind 15 To 20 Kt. Waves Around 2 Ft Or Less. Rain. |
| Wed...Se Wind 10 To 15 Kt. Waves Around 2 Ft Or Less. Rain Likely. |
| Wed Night...Se Wind 10 To 15 Kt. Waves Around 2 Ft Or Less. Rain Likely. |
| Thu...Se Wind 10 To 15 Kt, Becoming Sw 5 To 10 Kt In The Afternoon. Waves Around 2 Ft Or Less. Rain Likely. |
| Thu Night...W Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. Rain Likely. |
| Fri...Nw Wind Around 5 Kt. Waves Around 2 Ft Or Less. Rain Likely, Mainly In The Morning. |
| Fri Night...W Wind Around 5 Kt, Backing To S Around 5 Kt After Midnight. Waves Around 2 Ft Or Less. A Chance Of Rain. |
| Area Forecast Discussion National Weather Service Seattle WA 839pm PST Sunday Nov 23 2025 Synopsis Post-frontal, onshore flow will continue through tonight. An upper trough will move inland on Monday for additional light precipitation. Another frontal system will move onshore on Tuesday, with a warm front lifting northwards Wednesday. Unsettled weather continues on Thursday as a weather system moves through the Pacific Northwest. Precipitation lingers through Friday with a cooler weather pattern developing next weekend. Short Term - Tonight Through Tuesday Night No significant changes made to the forecast this evening. The previous discussion can be found below along with updates to the aviation section: A weak convergence zone will linger over King County into this evening, with the bulk of the moisture focused into the Cascades. Another round of light precipitation will move through on Monday as an upper trough over Western Washington moves inland. Snow levels will fall to 2000 to 2500 feet into Monday, resulting in a few inches of snow for the Cascade Passes (mainly less than 3 inches of snow). Temperatures will cool a few degrees on Monday with highs in the mid to upper 40s. Precipitation will slowly increase on Tuesday as a frontal system approaches Western Washington. Locally breezy winds are also expected on Tuesday, mainly for Whidbey Island and the coast with southeast wind gusts approaching 25-30 MPH. Snow levels will initially be 2000 to 3000 feet late Tuesday at the onset of the precipitation, resulting in snow for the Cascade Passes. Snow levels then look to rise to near 3500 feet for the central Cascades by late Tuesday night. Despite rising snow levels and increasing warm air aloft, continued E/SE surface flow at Snoqualmie Pass may result in a brief period of freezing rain late Tuesday night into Wednesday morning. However, uncertainty continues to exist in regards to the frontal position and precipitation transition timing. At this time, probabilities of 6" of snow (or more) from Tuesday-Wednesday morning range from 30% at Snoqualmie Pass and 60% at Stevens Pass. If you're traveling over the Passes Tuesday afternoon into midweek, continue to monitor the forecast and pass conditions. Long Term - Wednesday Through Sunday The aforementioned frontal system will stall generally across southern Washington on Wednesday. There remains some uncertainty into the northern extent of the precipitation shield on Wednesday, perhaps resulting in a brief period of dry conditions near the BC border. Otherwise, continued lowland rain and higher elevation mountain snowfall expected on Wednesday (especially for southern areas). Snow levels will continue to rise on Wednesday as a warm front lifts northwards late. As noted above, we will continue to monitor any potential wintry mix Wednesday morning for Snoqualmie Pass before surface temperatures warm. Primarily snow or rain/snow mix for Stevens Pass on Wednesday. A more consolidated low pressure system will approach the Pacific Northwest on Thursday. This will result in continued lowland rain and high elevation mountain snowfall on Thursday. In addition, will need to monitor the track of the low pressure system early Thursday for any wind related concerns. Quite a bit of spread exists in the ensembles for Thursday, for example the 10th-90th PCT (from NBM) max wind gusts is 11 MPH-40 MPH, suggesting significant uncertainty. However, gusts at this time are forecast to remain below headline thresholds. Otherwise, consistent precipitation on Thursday will lead to rises on rivers, especially the Skokomish River in Mason County. Refer to the Hydrology scussion for more information. Continued troughing over Western Washington on Friday will lead to unsettled conditions, and more showers at times. A cooler airmass will develop next weekend as troughing digs southwards across the interior West. Northerly flow with ridging offshore will allow for predominantly drier conditions by late weekend over Western Washington, although have kept NBM POPs of 20-35% due to some uncertainty in additional systems overtop the ridge. There remains decent spread in the ridge position offshore and troughing over the interior West by Sunday. This can be seen well on the NBM percentile data, with the 10th-90th Min T by next Sunday ranging from 31-43 degrees for Seattle and 20-37 degrees for Bellingham (aided by Fraser Outflow). Thus, it will be important to continue to monitor forecasts. Either way, as noted on the CPC outlook, a cooler weather pattern is expected beginning next weekend for Western Washington. JD Marine Onshore flow will continue through Monday. Small Craft Advisory west winds are expected at times across the central and eastern Strait of Juan de Fuca through tonight. There will likely be a period where winds drop below SCA (Small Craft Advisory) threshold this evening, with another increase in onshore flow later tonight. In general, occasional gusts to 25 kts are expected before winds taper off early Monday. Elsewhere, winds will remain generally lighter, with continued northwest winds for the Coastal Waters. Southeast winds will increase on Tuesday, especially for the Coastal Waters, as well as eastern Strait of Juan de Fuca, where headlines will likely be necessary. Winds will remain elevated through Thursday as a weather system moves through the waters. Winds will lighten on Friday before transitioning more northeasterly next weekend. Seas of 10 to 13 feet this afternoon will subside below 10 feet on Monday. Seas will build above 10 feet again late Tuesday into Wednesday. JD Hydrology Light precipitation at times is expected through Monday. No hydro concerns during this period. A stronger weather system will move into Western Washington late Tuesday, with continued precipitation at times through Thursday. Rivers will rise as a result of the steadier precipitation, especially for rivers off the central and southern Cascades, as well as the Olympics. Snow levels will also rise to 5500 to 6500 feet by late Wednesday. At this time, the Skokomish River in Mason County is the primary river being monitored for river flooding by Thursday. However, other rivers will continue to be monitored as well. JD NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...Small Craft Advisory until 10pm PST this evening for Grays Harbor Bar West Entrance USA Waters Strait Of Juan De Fuca. Small Craft Advisory until 4am PST Monday for Central U.S. Waters Strait Of Juan De Fuca- East Entrance U.S. Waters Strait Of Juan De Fuca. Small Craft Advisory until 10am PST Monday 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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