Show HN: Wattcast, weather at your moving position along a cycling route

- Wattcast is a web app (likely a Show HN post on Hacker News) that gives cyclists real-time weather forecasts tailored to their position along a route, rather than just a single city or start-point forecast. - "Show HN" means the creator is presenting their own project to the Hacker News community for feedback — it's a launch or pitch, not a news story. - The key innovation: weather data is updated continuously as the rider moves, solving the problem that a forecast for your start point is useless if you're riding 50 km into a headwind or toward a storm. - The audience is cyclists (road, gravel, touring, commuters) who plan routes and care about wind, rain, and temperature changes along the way. - The project is relevant to a broader trend: hyper-local, movement-aware weather tools, which are still rare compared to static location forecasts.