A wave pattern in the upper-level winds at middle latitudes provides for:
A)colder temperatures at all latitudes.
B)warm air moving south.
C)cold air moving south.
D)decreased snowfall.

Question

Quizplus · Accepted Answer

A wave pattern in the upper-level winds at middle latitudes often creates a trough which brings cold air southward, resulting in colder temperatures and possibly increased snowfall.

A Wave Pattern in the Upper-Level Winds at Middle Latitudes