Suppose there are two cloud layers above you.The lower cloud layer is moving from a westerly direction,while the higher cloud layer is moving from a northwesterly direction.From this observation you conclude that the wind is ____ with height and ____ advection is occurring between the cloud layers.
A) backing,cold
B) backing,warm
C) veering,cold
D) veering,warm

Question

Quizplus · Accepted Answer

If the lower cloud layer is moving from a westerly direction and the higher cloud layer is moving from a northwesterly direction, it suggests that the wind direction is veering with height. Veering wind means that wind direction changes in a clockwise direction with an increase in height. Since the higher layer is moving from the northwesterly direction, it means that the wind is blowing from the northwest in that layer. If the air between the layers is warmer than the surrounding air, warm advection is occurring. Advection is the horizontal transfer of heat or moisture in the atmosphere. Therefore, the wind is veering with height, and warm advection is occurring between the cloud layers. Hence, the best choice is D) veering, warm.

Suppose There Are Two Cloud Layers Above You