I have a Scadden Madison River, great boat. I do lots of chironomid fishing in lakes, and need to keep the boat still in high winds.
I use a 12 lb. Spike anchor off the trolley, and a 8 lb mushroom anchor that I can toss off the back deck. Drop the trolley anchor first, let the wind swing you around, then drop the mushroom, then tighten the trolley.
I also keep a fabric sea anchor (looks and works like a wind sock) on the back deck. It can put you at perfect trolling speed for leeches and streamers in high winds. There's a separate strap that hooks to the hole in the outlet end -- pull the strap, the sea anchor collapses, and you are on your way.
For my float tube, which is not affected nearly as much by the wind, I use a 3 lb folding anchor like Char mentioned.
DANBOB