As this air rises, the barometric reading goes down and the water vapor condenses and may form clouds or cause precipitation.
(this air; rises; ) (the barometric reading; goes; down; T:As this air rises) (the barometric reading; may form; clouds) (the barometric reading; cause; precipitation)
this air the barometric reading the barometric reading the barometric reading
rises goes may form cause
down T:As this air rises
clouds
precipitation