The complaint is that google took some kind of confidential or trade secret knowledge about these winds. It can't be the directions and speeds, because those are constantly changing, and this was years ago. It's not methods of calculation, or they would have said so, like they said about the other points. So the only thing left under 'knowledge' is the mere fact that winds exist there. Of course winds exist there. They didn't discover that. Google's not even calculating most of the wind data, they apparently get that from NOAA.