In which of the following conditions are chinook winds driest on the eastern side of the Rocky Mountains?
A)when the winds blow from the east
B)when clouds form and precipitation falls on the upwind side of the mountains
C)when the sun is shining
D)when the air aloft is cold

Question

Quizplus · Accepted Answer

Chinook winds are warm and dry winds that blow down the eastern slopes of the Rocky Mountains. They occur when moist air from the Pacific Ocean is pushed up and over the mountains, cooling and forming clouds that produce precipitation on the upwind side of the mountains. As the air descends on the downwind side, it is warmed by compression and loses moisture, resulting in dry and warm conditions on the eastern side of the Rockies. Therefore, the driest conditions occur when clouds form and precipitation falls on the upwind side of the mountains.

In Which of the Following Conditions Are Chinook Winds Driest