Cloud cumulonimbus stratocumulus aerosol dense fog, clear blue skyline

cloud cumulonimbus stratocumulus aerosol fog skyline blue clear sky weather dense atmosphere horizon layer air environment mist vapor space cloudscape condition forecast natural pattern element climate visibility phenomenon science layered cover formation temperature sun daylight scene purity texture cumulonimbus cloud stratocumulus cloud clear skyline blue sky weather pattern sky condition blue horizon cloud formation skyline view clear weather natural scene