Gusty Gulch

The Rain Shadow

The Windy Mill

The Gusty Gulch is a small wasteland that in inhabited by the Boo’s, there is also a Windy Mill located on the east side of the gulch. Because of the high-pressure gradient that is pushing air to a lower gradient, it causes the high winds and makes it very difficult for life to flourish. The dryness of the Gulch is caused by the rain shadow, which is making it so the gulch does not get any water but plenty of wind. The rain shadow is when the mountains block the movement of weather that produces rain, which casts a “shadow” of dryness behind the mountain. Warm air is pulled over the mountains and then it condenses, and, is then turned into dry air, which then moves the air behind the mountain that causes the rain shadow.

Mario and a Boo at the Gusty Gulch  

This is what a Boo looks like 

The pressure variation that occurs at the Gulch is a thermal variation, which is driven by temperature differences. Mountain diurnal is the type of thermal variation that is occurring. During the day the sun heats the gulch, which causes warm air to rise and at night the mountains cool quickly and the heavy dense air creates air drainage and then the cool air settles at the bottom of the Gulch.

Sources for Post 

http://www.mariowiki.com/Windy_Mill

http://www.mariowiki.com/Gusty_Gulch

http://en.wikipedia.org/wiki/Rain_shadow

http://www.freebase.com/view/m/021qbk