a cloudy sky with dark, ominous clouds. the clouds are thick and appear to be moving quickly.

background abstract sky nature spring clouds cloud black wallpaper rain lightning beautiful natural day skyline sunlight season weather climate skyscraper atmosphere wind meteorology storm stratosphere thunderstorm heaven overcast hurricane daylight outdoor rainstorm danger thunder outdoors contrast backdrop scene cloudscape cloudy copy space dark darkness dramatic gray grey ominous thick moving light streaks clouds quickly faint visible