A katabatic wind is a very strong wind which blows downhill.[1] They can be warm winds like the "föhn" wind on the north slopes of the Alps in Europe or the Chinook which blows down the Rockies in the US.[1] They can also be very cold winds like those in Antarctica or Greenland.[1] They are made when cold, dense air flows down from the ice cap to the coast. Sometimes these winds are called fall winds.[2] Along the Adriatic coast, the cold katabatic wind is called the "bora", and in France it is called the "mistral".[1]