Put it this way the lake has never been as predicted in all the times I have been on it...south wind is the best if you want calm...10mph or more you could probably still get quite a ways out on the lake before it got choppy anything out of the north, west or east more than 10mph steady would have it rolling pretty good for a smaller boat. There are some buoy websites you can go to that give you real time information maybe one of the Seasoned verterans can chime in with a link. Good luck out there and as always be careful.
Tom