Impossible to laugh when I'm underwater with my boat upside down! When I went in '05, my old boat nearly sank.Working on it.. AND Only if you guys won't laugh me off the lake with my OLD boat...
You'll have to ask Orrin or the NFYC locals - I have just have impressions from my few trips. 20 knots unlikely except in front of a thunderstorm or cold front. There is a nice early thermal that comes off the north shore / Flathead river delta, sometimes dies by noon. A southern thermal comes up the lake from the south mid-day. If it runs the length of the lake, there can be some long waves. An evening thermal comes off the west shore in the bay right near Somers, and there can be whitecaps. This lake seems to make it's own weather.what's the usual wind pattern this time of year? what's the likelihood of winds around 20 knots?