This is correct - Windy explicitly says that they don't do any forecasting on their own and they don't have any meteorologists on staff. The usefulness and the

This is correct - Windy explicitly says that they don't do any forecasting on their own and they don't have any meteorologists on staff. The usefulness and the quality of apps such as Windy is really a testament to how good the public (and free) weather forecast models are.