Marine Weather and Tide Forecast for Keyport, WA

SHORT TERM /TONIGHT THROUGH SUNDAY/
A dry a mild day for western WA today with temperatures in the 60s to lower 70s - right around average. A deep upper low with shift inland Friday and Saturday leading to cooler and wetter conditions across western WA. Through Saturday, total rainfall ranges from around 0.25-0.50" in the lowlands with 0.50-1.00" in the mountains and foothills. The air mass will be unstable Friday afternoon for a chance of thunderstorms over SW WA too. The wettest period will be Friday night and Saturday morning. Up in the mountains, snow levels will drop to around 5000 ft with a few inches of snow on the higher peaks. Forecast highs both Friday and Saturday are only around 60 degrees, or around 10 degrees cooler than average for the interior.

The upper low will weaken and shift farther east on Sunday. We may still see a few light, lingering showers in the interior and Cascades but we're only expecting an additional trace to a few hundredths (if anything). The air mass will moderate a little bit with highs tracking closer to average again. 33

LONG TERM /MONDAY THROUGH THURSDAY/
Weak high pressure brings warmer and drier weather back to western WA early next week.
Temperatures in the interior will reach the mid/upper 70s to lower 80s in the interior (peaking on Tuesday). The coast will be cooler and in the 60s with northwest flow. Showers return mid to late week with troughing over the Pac NW. 33

AVIATION
A mix of mid and upper level clouds throughout western Washington this afternoon, for VFR cigs across all terminals.
Surface winds are predominately northwesterly, gusty through the Strait of Juan de Fuca and portions of Puget Sound. Changes are in store for tomorrow afternoon and evening as a frontal system enters the region, bringing rain and MVFR cigs to most terminals.

KSEA...VFR presently at the terminal, with breezy northerly winds gusting to 15 kts. Some leftover SCT clouds at 040 or higher remain in place, with periodic BKN to the north around BFI. Winds will remain northerly and between 7 to 10 kts through 05Z, transitioning to a southwesterly wind ahead of the front around 07Z at 8 to 10 kts. Rain showers are likely after 18Z Friday.

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MARINE
High pressure over the waters will weaken tonight. Low pressure system tracking across the waters Friday into Saturday.
Expect widespread rain over the area waters, with possible small craft advisory wind and seas over the outer coastal waters on Saturday.

Westerly push through the Strait of Juan de fuca tonight with small craft advisory winds in the Central and Eastern portions. Maintained the forecast of 20 to 30 kts through Friday morning.

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SEW WATCHES/WARNINGS/ADVISORIES
WA...None.
PZ...Small Craft Advisory from 6 PM this evening to 6 AM PDT Friday for Central U.S. Waters Strait Of Juan De Fuca-East Entrance U.S. Waters Strait Of Juan De Fuca.