WW.
hi mate .
i operate often winds above 20 kts with floats. about the most challenging stuff ive done is cross wind landings with floats. the drag effect on the floats can give a rolling tendency if you not ready for it. on a wind from the right the machine will roll to the right and can get obviously very sensitive to any gust. left cross wind are even worse as they fight the tailrotor thrust . and when they have to be done, tail wind landings, manual states 17 kts max up to 9000 ft. i self impose a limit of 15 kts. with the wind going over the horizontal stabiliser its can force the tail up and you can run out of AFT cyclic, not to mention taking out the boom in extreme circumstances.
all in all, fly a float machine always in balance.
hope that helps
cheers BP
