Rio  de Janeiro, Brazil- Day 3 preview by Luca Devoti. Weather forecast for today: strong wind from 16 to 22 knots, cloudy. Nacra 17 and 470 will show up for their day 1. Also races for Finn (race 3 and 4) and Laser and Laser Radial (race 5 and 6) are scheduled by 1pm (18:00 CET).