Dark rain Clouds are clouds that are black when it rains
cirrus clouds are dark and usally bring rain
"dark billowing clouds" isn't a sentence. Dark and billowing are adjectives describing clouds, a plural noun.
because they are filled with water and the water got their from evaperation when the clouds are dark those are rain clouds
Dark Clouds - song - was created in 1997-02.
What word describes low dark clouds
Cumulus clouds become Cumulonimbus (dark towering clouds) when enough water vapor condenses in the same spot.
rain clouds
Dark Clouds in a Perfect Sky was created in 2004-10.
Because there can be a lot of water in warm air, stratus clouds can easily turn into dark, rain and snow-producing nimbostratus clouds.
Clouds appear dark before a storm because they become thicker and higher, blocking more sunlight from passing through. This creates a shadow effect and gives the appearance of dark clouds. Additionally, the moisture content in the clouds increases as a storm approaches, which can make them appear darker.
If there is is dark clouds outside you could theorize that it is going to rain because of the dark clouds.