Ключевые слова: america, atmosphere, background, cloud, cloudscape, cloudy, cumulonimbus, danger, dark, ecology, environment, gray, landscape, meteorology, midwest, natural, nature, ominous, outdoors, rain, scene, scenery, scenic, science, severe, severe weather, sky, storm, texture, thunder, thunderstorm, united states, usa, view, weather, wi, wild, wind, wisconsin,