What tricks have y'all (yes, originally from Southern US) to help you judge wind speed? Anyone go as far as an anemometer? Ribbons, grass in air, spit into wind and see if it comes back, etc...
It could handle quite a lot.
But what it can handle and what is fun to fly in are very different.
I would say top of Force 3 bottom of force 4. 15mph steady would be fun.
You could fly it in 20mph. Would it be fun?? Yes for an experience flyer. For a novice it could be a nightmare
I agree with Lee here. Try to stay under 10mph constant. Even in that, you can get 25mph gusts that can cause you to think it's going ot crash. Landing is fun in those kind of winds though. Catch a gust just right, and your plane will land going backwards lmao.