Marine Weather and Tide Forecast for Shelton, WA

SHORT TERM /TODAY THROUGH FRIDAY/
Widespread low clouds across the region this morning with some light rain showers evident in data from NWS radar this morning.
With the dominant upper trough remaining over the Great Basin, expect stronger onshore flow to again develop later this morning, aided by a shortwave dropping through southwestern British Columbia. Expect increased shower activity this morning near and east of northern Puget Sound, extending eastward through the Cascades. A Puget Sound Convergence Zone is likely to develop this afternoon and evening, bringing an additional focus for shower activity across central Puget Sound eastward into the Cascades. That said, QPF remains rather modest.

Expect some drying out to occur late this evening through early Thursday (outside of the previously mentioned PSCZ) as heights rises a bit with a transient upper level ridge in between the main weather features. That said, this will be a short-lived break, as the next frontal system will approach the coastline by early Thursday and bring yet another round of increased rain activity. This will knock a few degrees off of the daytime high temperatures, with the lowlands topping out in the mid 50s to lower 60s.

LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/
The long term period looks to feature an extended unsettled pattern, with an upper trough developing across the Pacific Northwest. There remains broad support in the ensemble guidance for this outcome, with fairly solid cloud cover and several rounds of showers. That said, the amounts aren't too impressive in any single time period, but the Friday night/Saturday period might be the wettest time period of the week ahead. The region will remain in a rather zonal pattern for the start of next week which will continue shower chances. Temperatures generally in the lower 60s through the interior lowlands for the start of next week.

AVIATION
Light showers early this morning with majority of terminals currently MVFR as low stratus pushes across the region, while terminals to the north are VFR. Improvement in ceilings is expected Wednesday afternoon to VFR, generally after 20z-23z.
However, ceilings are expected to lower once again overnight on Thursday ahead of an incoming frontal system. Generally south/southwesterly winds 5-10 kt. A strong westerly push across the Strait on Wednesday will turn winds northerly from BFI north along Puget Sound, including PAE.

KSEA.. MVFR conditions will persist into late Wednesday morning.
Guidance hints at VFR ceilings returning in the afternoon (after 22z). However, MVFR ceilings are expected to return into Thursday's overnight hours. Southerly/southwesterly winds 7-10 kt through the TAF period. Northerly winds still look to remain to the north of the terminal Wednesday afternoon/evening.

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MARINE
High pressure over the Pacific will maintain onshore flow, bringing another round of strong westerlies over the Strait of Juan de Fuca Wednesday evening, for which the Small Craft Advisory has been extended. High pressure will weaken on Thursday as the next frontal system moves across the waters Thursday into Friday. High pressure will rebuild over the waters into the weekend.

Seas 7 to 9 ft on Wednesday, becoming 4 to 6 ft by Thursday. Seas rise again on Friday to 6 to 8 ft and may increase to 10 ft by Sunday.

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HYDROLOGY
The daily hydrology discussion has ended until the start of the next rainy season; it will only be updated if needed.

SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory until 11 PM PDT this evening for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S.
Waters Strait Of Juan De Fuca.

Small Craft Advisory until 10 AM PDT this morning 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.