When are upper air winds fastest?
A)anytime surface temperature gradients are weak
B)in summer
C)in winter
D)These winds maintain about the same speed throughout the year.

Question

Quizplus · Accepted Answer

Upper air winds, also known as jet streams, are strongest during winter when the temperature gradient between the poles and the equator is highest. This creates a stronger pressure gradient force, leading to faster wind speeds. In summer, the temperature gradient is weaker, resulting in weaker upper air winds.

When Are Upper Air Winds Fastest