snow is a terrain type and although weather is random in random encounters, they are set in the storyline encounters ie: it always rains in the first one, and then there is a swamp mission in act 3 i believe that it rains and a character comments on it. this is from the instructions that come with ganesha "A situation is a combination of an "arrangement" (different configurations of polygons and terrain), a weather condition (sunny, cloudy, very cloudy), and a time of day. To cycle through situations, use the [ and ] keys. Most maps have about 10 situations, but this varies. Be sure you have the right situation selected before you start editing a map, or you won't see your changes in the game when you're done". thanks for the attempt, i'm going to alter each situation one by one in order to learn which background corresponds to each situation and post the results. if anyone has an answer it would save me plenty of time