The Leeward Islands are warmer and drier than the Windward islands. The Leeward Antilles are warmer and drier than the Windward islands. The leeward flux of sand is greater than the windward flux. The leeward region of mountains generally remains dry as compared to the windward. In these contexts the terms "windward" and "leeward" are not used. Sand dunes dominate the windward south coast. The lateen sails gave it speed and the capacity for sailing windward (beating). Sailing to windward close-hauled and tacking is called 'beating'. The storm produced heavy rainfall across the Windward Islands. Hilo is on the eastern and windward side of the island. Because of this northwesterly gale, Tovey concluded an attack on "Bismarck" from windward was undesirable. In Asia sailing ships were equipped with fore-and-aft rigs that made sailing to windward possible. Slowing down when beating to windward is sensible cruising. Any boat in clear air to windward has an aerodynamic advantage over other boats. On the last tack it is possible to 'fetch' to the windward or weather mark.