What is a characteristic of Maritime Polar air masses?

Maritime Polar air masses are characterized by being cool and humid. This is due to their origin over oceanic regions in polar latitudes, where they gather moisture from the water and remain relatively cool because of the low temperatures associated with the polar regions. As these air masses move over the ocean, they absorb moisture, making them distinctively humid. So, when they interact with landmasses, they often lead to cloudy conditions and precipitation. The cool temperatures along with high humidity levels are fundamental to the behavior of Maritime Polar air masses, especially as they can influence weather patterns significantly in coastal regions.