CLEAN : Solar Impulse can wait in Japan for two months: pilot

The video discusses plans to fly during the summer, highlighting potential delays and the importance of reliable weather forecasts. It emphasizes the challenges of weather forecasting beyond a few days and the need to manage risks effectively for the flight.

What is the worst-case scenario mentioned for the flight planning?

What is the significance of the phrase 'at the limit of what weather forecasting can do today'?