East Entrance U.S. waters Strait of Juan de Fuca Marine Forecast
| Today...N Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
| Tonight...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sun...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Sun Night...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Mon...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Mon Night...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Tue...N Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Tue Night...Light And Variable Winds, Becoming E Around 5 Kt After Midnight. Waves Around 2 Ft Or Less. |
| Wed...E Wind Around 5 Kt. Waves Around 2 Ft Or Less. |
| Wed Night...Se Wind 5 To 10 Kt. Waves Around 2 Ft Or Less. |
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Area Forecast Discussion National Weather Service Seattle WA 206pm PST Sat Jan 25 2025 Synopsis An upper level ridge centered offshore will gradually build into the region through the early portion of the coming week. This will lead to dry conditions and chilly overnight temperatures. The ridge will weaken by midweek and a series of systems will bring a return of lowland rain and mountain snow Thursday into next weekend. Short Term - Tonight Through Tuesday An upper ridge centered offshore and north-northeasterly flow at the surface and aloft have led to a crisp, dry mid-winter day across Western Washington. This general pattern will remain fairly static heading into Sunday and Monday. Surface gradients turn lighter over time and this will likely contribute to more patchy freezing fog across the Southwest Interior, south Puget Sound, and outlying river valleys over the next couple mornings. Overnight lows will remain on the chilly side. Tonight's forecast lows were edged downward closer to the 25th percentile of the NBM. For the most part, this keeps most spots just above cold weather advisory criteria, but it wouldn't be surprising to see Olympia dip below the 20F threshold once again Sunday morning. Upper ridging begins to weaken more noticeably by Tuesday...signaling a coming shift from the persistently dry pattern of the past nearly two weeks. Long Term - Wednesday Through Saturday Model agreement with the turn toward a cool unsettled pattern in the second half of the week is good, but ensemble agreement with respect to the depth and track of an expected upper trough trails off pretty quickly by next weekend. And that could have implications in terms of both precipitation type and amounts by Saturday. The mountains will certainly get several inches of snow, but it's also worth mentioning that lowland snowfall probabilities are creeping upward. The NBM is now putting a good swath of the interior lowlands in the 20-40% chance of a fraction of an inch snow by late Saturday...which is up from generally 20% or less as of yesterday. It's still early yet, but definitely something that we'll be monitoring. 27 Marine Surface ridging strengthens over interior British Columbia and east of the Cascades today while a broad surface trough deepens well to the south over California. This will lead to northerly or weak offshore flow. This general pattern remains in place into early next week. The next front will approach the coastal waters around the middle to later half of next week. Seas 5 to 6 ft for much of the weekend. Seas will ease further, down to 3 to 5 ft, Monday and remain that way into the middle of next week, rising again ahead of the aforementioned front that is likely to arrive Thursday night. Timing on that front may vary as the models struggle sometimes with pattern changes after prolonged ridging, but nevertheless, a return to some marine headlines may be warranted. Hydrology No river flooding is expected in the next 7 days. NOAA Seattle WA Office: Watches - Warnings - Advisories WA...None. PZ...None. |
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