Final answer:
When the center of a mature wave cyclone passes to the south, expect a wind shift from east to north and heavy precipitation due to the cyclonic flow and rising air in the low-pressure system.
Step-by-step explanation:
When the center of a mature wave cyclone passes to the south, you should expect winds shifting from east to north and heavy precipitation.
This weather change is tied to the rotation and wind patterns associated with low-pressure systems in the Northern Hemisphere. These systems are influenced by the Coriolis force, causing them to rotate in a counterclockwise direction.
As a wave cyclone passes, the wind direction typically changes due to the cyclonic flow. Following the passage of the low, winds often shift from an easterly direction to northerly. Additionally, the low pressure at the center of the cyclone is associated with rising air, leading to cooling, cloud formation, and thus heavy precipitation.