Sometimes, an upper-level pool of cold air that has broken away from the main flow lies almost directly above the surface low. Occasionally the upper low will break away entirely from the main flow, producing a ____.
A)jet streak
B)shear low
C)cut-off low
D)bent-back occlusion
E)polar jet stream

Question

Quizplus · Accepted Answer

A cut-off low is a term used to describe an upper-level pool of cold air that has become completely separated from the main flow of the jet stream, often lying above a surface low. This phenomenon occurs when the upper low breaks away entirely from the main flow, leading to a distinct and isolated weather system.

Sometimes, an Upper-Level Pool of Cold Air That Has Broken