The author presented a snow simulation model in the 3D meteorological disaster analysis system. It could help analysts prevent snow storm and avalanches. First, the author classified the pixels of the satellite remote sensing images by their color vectors’ distance. Each of the colors represents a landscape. Then the author derived a formula by using mechanics. This formula was used to determine whether or not the snow could be covered on different regions. These regions had same landscape but different topography. If the regions were determined covered by snow according to the formula, the snow color was used to fill the regions. After this process, the satellite remote sensing images were used as textures in the 3D meteorological disasters analysis system. The experimental results show that snow effects can be produced by the snow simulation model.