Wind That Blows in the NW Usa; Also a Helicopter
Puzzle 2 of Best Friends Easy Pack
Question is: Wind That Blows in the NW Usa; Also a Helicopter
and the answer is: CHINOOK
Word Meaning:
CHINOOK — (Canada, US, physics, meteorology) The descending, warm, dry wind on the eastern side of the Rocky Mountains that generally blows from the southwest and can rapidly increase the temperature due to the much warmer air it brings.
Definitions from Wiktionary.