Hi all. I am finding it difficult to understand why after ascending the western slopes of Rockies the wind descends along the Eastern side.
While ascending, first it cools at DALR i.e. 10°C/km and becomes saturated and yield precipitation. It further ascends and reaches the top of Rockies.
Although the wind is cooler at the top, it is no where closer to the below freezing temperature which is prevailing down in the valley.
That means there will be high pressure down in the valley and comparatively low pressure at the top. Please correct me here.
Now it is said that while descending down the slope it gets heated and reaches the foothills as warm, dry snow eater called Chinook.
So what prompts the wind to descend down the valley along the slope?
