Question: What is the weather phenomena characterized by an unexpected warm wind bringing low reletive humidity to the northern Alps during rainfall in the southern Alps?
Sentence: A weather phenomenon known as the föhn (with an identical effect to the chinook wind) can occur at all times of the year and is characterised by an unexpectedly warm wind, bringing air of very low relative humidity to the north of the Alps during rainfall periods on the southern face of the Alps.
Answer in sentence: yes