Chinook is a :

Chinook is a warm, dry local wind that occurs on the eastern slopes of the Rocky Mountains in North America, specifically in the USA and Canada [1]. It is a foehn-type wind, which is a hot, katabatic wind that descends the leeward side of a mountain range [1]. As the air descends, it undergoes compressional heating due to increasing atmospheric pressure, which can raise local temperatures by as much as 20°C within an hour [3]. Known as the 'snow-eater,' the Chinook is highly beneficial to farmers and ranchers because it melts snow and clears grasslands for livestock during the winter months [2]. Unlike cold European winds or tropical desert storms, the Chinook is characterized by its warming effect and its specific geographical association with the North American Rockies [1].

Sources

1. [1] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 23: Pressure Systems and Wind System > Chinook (Snow Eaters) > p. 323
2. [2] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 14: Climate > Frihn Wind or Ghinook Wind > p. 142
3. [3] https://www.weather.gov/media/zhu/ZHU_Training_Page/winds/atmospheric_circulations/Atmospheric_Circulations.pdf