This week We talked about polar jets and subtropical Jets. Polar Jets are more powerful but are lower in the air they are only 23-39,000 feet above ground. Subtropical Jets have less power but are higher in the air then polar Jets ,they fly between 33-52,000 feet in the air. The air that is in jet streams can travel over 200 miles per hour. They are used to forecast weather.There are several main types of climate. A few of them are the tropical climate which is above 64 degrees all year round. Another is the dry climate, this climate is from 68 to 90 degrees all year long.