Isochronal Router

Blue Start & Red Finish. Multi‑model routes, hourly isochrones, 12‑h dots, model run ages.

Waypoints

Start lat Start lon Finish lat Finish lon

Windy overlay & time sync Overlay model ECMWF GFS ICON Animate model Start now Start at (local)

Show/Hide polar input

Supported: TWS,TWA,BSP or TWA,BSP. Interpolated over TWA and TWS.

Upwind no‑go (°) Min turn to count (°) Manoeuvre penalty (min) Heading step (°) Δt (min)

GC Distance:–

Route Distance:–

Total Time:–

Avg Speed:–

Tacks/Gybes:–

Start (local):–

ETA (local):–

Model Data Window

Computed after routing…

t:0:00

Lat:–

Lon:–

HDG:–

BSP:–

TWS/TWA:–

≤4 kn

4–6 kn

6–8 kn

8–10 kn

≥10 kn

ECMWF

GFS

ICON

GEM