ISLADREAM — Offshore sailing: prepare the route, weather and watches
2 November 2026
https://isladream.pages.dev/en/journal/hauturiere/

Documentary synthesis, without an onboard survey. Adapt decisions to the boat, current manuals and actual conditions.

[ ] Define route, alternatives and arrival constraints.

[ ] Record forecast issue time and validity.

[ ] Consult current charts and relevant warnings.

[ ] Prepare handover and skipper-call instructions.

[ ] Assess normal endurance and degraded scenarios.

[ ] Test backups and offline access.

[ ] Record reasons to depart or postpone.


Sources & documents
RYA — Passage planning
https://www.rya.org.uk/water-safety/passage-planning-and-navigation/passage-planning/
Météo-France — Météo marine : côte, large et BMS
https://meteofrance.com/meteo-marine
NOAA NHC — Gridded marine forecasts
https://www.nhc.noaa.gov/marine/grids.php
NOAA NWS — Marine text forecast products
https://www.weather.gov/marine/forecast
Shom — GAN et avertissements de navigation
https://diffusion.shom.fr/gan-et-avertissements-de-navigation.html
IMO — Convention on the International Regulations for Preventing Collisions at Sea
https://www.imo.org/en/about/conventions/pages/colreg.aspx
RYA — Night boating and watchkeeping
https://www.rya.org.uk/water-safety/water-safety-at-night/night-boating/