47.3950°, -122.4630°
Catalog default · 10–22 kt
Tide: Wauna, Carr Inlet · 13 km
20:1907:0019:01
South Vashon Island, Puget Sound. Sheltered harbor with S-SW wind exposure. Flat water.
Seattle-Tacoma Intl, WA, US (KSEA) · 12.5 km from the launch · Sep 25, 19:53
At the airport
9 kt
SW · 13°C
Forecast this hour
13 kt
WSW
Airport is 3 kt lighter than the forecast
Last day · airport ran about 3 kt windier than the model (20 hours)
Hour by hour · airport minus forecast
Biggest swing 09:00 · +9 kt
This is the nearest airport, not the water. Use it to see if the model is in the ballpark — it does not change the grade.
4.5 kt · S (178°) · gusts 13.0 kt
Weather system incoming
6h change: -3.2 hPa
Tide, swell quality, and wave amplification are not in the grade
Forecast fetched: Sep 25, 2026, 20:19
Quartermaster Harbor: 1-13 kt WSW. No remaining rideable session. Bottom line: No session.