LetÃ‚Â´s take 40-50 kts winds and see whoÃ‚Â´s going out in that weather... Even if the wind is steady ( measured by hand from shore ), there are so few guys going out at all, that this discussion is just not needed.
A 15-45 weather is not for water sports. Even windsurfing gear making it in 15 kts, wonÃ‚Â´t take 45 kts safely and vice versa. I wouldnÃ‚Â´t like to be out with my 62 liter board and the 3.7m2 when the wind drops from 45 to 15 kts since the 15 kts could as well be 0 kts for that equipment.
And here I mean real and measured 40-50 kts weather with humid and powerful cold air. You know, when the sea surface is covered in a 2 m cloud of flying water and your 51 cm wide waveboard flies here and there despite your 80 kgs standing on it. None of those "letÃ‚Â´s call the meteo and ask the wind at the meter sitting 10 meters up" - stuff.