What do you mean when the south wind will reach the North Sea?

It's a long way. It is difficult for the south wind to blow to the North Sea. What do you mean when the south wind will reach the North Sea? The south wind is the wind blowing from the south, and it also refers to the wind direction, that is, the direction in which the wind comes, so the south wind is the wind blowing from south to north. Used to describe the impossible.