AI Passage Window Planner
Analyses your route, departure time, and 5-day forecast to identify the best passage window — and flags weather risks per leg.
Overview
Claude Sonnet 4.5 analyses your planned route, departure time, and the 5-day forecast to identify the optimal passage window — and flags any weather risks along each leg. Smarter than any weather app.
Claude analyses your planned route against the 5-day weather forecast per leg. Wind, swell, visibility, and precipitation — all factored into the recommendation.
Each leg is flagged for weather risk — low, moderate, or high. Know which parts of your route need caution before you leave the dock.
The passage window planner ties directly into voyage planning. One click from your route to the AI recommendation — no re-entering waypoints or dates.
Book a demo and explore every module. Early access available now.
Book a DemoWe use cookies to keep HELM running smoothly.
Essential cookies are always on. We'd also like to use analytics cookies to understand how you use the platform. Privacy Policy