Total: 0.0 NM
Route distance

Route Planner

Draw a polyline route → enter ship speed → analyze to see hourly conditions along the track.
Units: Wind requested from API in knots (kn) and also shown as m/s. Waves in meters (m).
Vessel: —
Setup required
Pro model v2.1: Recommended speed depends on vessel + weather (not on the speed you type). Your speed is used for ETA only.
Scan horizon:
Step: Last analyzed (1h): —
Saved locally in your browser.
Stored locally (this device/browser).
Live AIS
Pair: SNBRN_MAIN01
Own ship MMSI (used only to style your vessel):
Tip: If you don't know your MMSI, click a target on the map and copy its MMSI.
Download AIS Connector (Windows) Plug your USB AIS receiver → run the app → click Start. Keep this page open.
Captain Nowcast (AIS position)
Refresh:
Set Own ship MMSI above to use the vessel’s live AIS position. Otherwise we’ll use the route start point.
Waiting for position…
Curated Routes (Port to Port) Load a ready-made route fast. Just type From and To.
Example: Odesa → Constanta
Tip: type just a few letters if you do not know the full port name.
Mobile: enable Location permission.
(BETA)
Playback (moves along timeline)
Charts (along timeline)
Wind in kn, waves in m. Slider/Play updates the marker.
Critical hours
m kn
Summary
Violations (hard limits)
m kn
Recommended speed (MVP)
Hourly speed advice
rows
Click a time to jump. Values are UTC.
Uses wind/wave thresholds + relative angle to route. (MVP heuristic)
Critical filter: Wave ≥ threshold (red) OR Wind ≥ threshold (blue)
Worst window
Window score = sum of risk over consecutive hours.
Calm window recommendation
hours
Export
Exports include hourly points + meteo (wind/wave) + flags.
Notes:
  • This is an MVP using public map tiles + forecast APIs.
  • Use View time (UTC) or Timeline slider to highlight where you will be.
  • For real ECDIS/ENC charts, licensing + different render pipeline is required.
  • Weather and marine forecast data are provided by Open-Meteo, using multiple global numerical weather prediction models including ECMWF, NOAA GFS and DWD ICON. Forecasts are generated from model grid data based on the selected coordinates.
Privacy Policy · Terms
Press Start Route first Then click on the map to add waypoints
💡
Mobile tip: Press & hold 1 sec on the map to add a waypoint.
Open Tools for Analyze, Find Ideal, Fuel, Export.
Watch tutorial on YouTube
<