DownwinderAppChart. Catch. Connect.
The wind, scored along your downwind line — not just at a point — so you launch at the right hour, on the right run.
How it works
Pick your line
Trace your run on the map — start, finish, and every bend the river or coast takes. Or grab a featured classic, from the Gorge to Maliko.
We score every hour
A 0–100 downwind score: wind strength × how well it aligns with each leg of your line, length-weighted. Not a point forecast — your run's forecast.
Go at the peak
See the best window for the next 7 days, with tide, current, water temp, and river flow alongside the wind.
One panel, the whole picture
Forecast data merged from Open-Meteo's weather and marine models and live USGS river gauges — so a Gorge run shows Columbia flow and water temperature next to the wind, and an ocean run shows tide, current, and swell.
Featured runs
Eleven classics, fine-tuned point by point — plus your own runs, traced on the map and scored the same way.