Portland Weather Analysis

Explanation:

Portland, in southern Maine, was under the influence of the northeastern Low. The wind at Portland, where the pressure was '969,' meaning 996.9 mb, showed the air was moving generally toward the east at about 15 knots.

The student's question requires an application of meteorological knowledge, specifically regarding wind patterns and barometric pressure. When a northeastern Low influences a region like Portland, Maine, the wind surrounding a low-pressure system in the Northern Hemisphere circulates counterclockwise and inward.

Given that the wind shaft with one long and one short feather represents a wind speed of approximately 15 knots and is plotted crossing New Hampshire from Portland, we can deduce that the air was moving generally toward the east.