Final answer:
The Arctic Oscillation is a circulation pattern in which the atmospheric pressure over the polar regions varies in opposition with that over middle latitudes. The negative phase of the Arctic Oscillation is typically associated with cold and snowy weather in the eastern U.S.
Step-by-step explanation:
The circulation pattern described in the question is known as the Arctic Oscillation. The Arctic Oscillation is a large-scale atmospheric circulation pattern in which the atmospheric pressure over the polar regions varies in opposition with that over middle latitudes. The negative phase of the Arctic Oscillation is typically associated with cold and snowy weather in the eastern United States.