Final answer:
A warm front coming in is typically indicated by wind patterns shifting to come from the southeast and a sequence of cloud types that start with high cirrus and progress into thicker altostratus clouds, often accompanied by light precipitation. Atmospheric pressure variations enhance the wind changes as the front approaches.
Step-by-step explanation:
A warm front is represented by a specific pattern in the wind and clouds. As a warm front approaches, the wind direction typically shifts to come from the southeast, and a distinct type of cloud formation is observable. The clouds that indicate a warm front is approaching usually begin with high, thin cirrus clouds that thicken and lower into cirrostratus and eventually altostratus clouds as the front gets closer.
Understanding the changes in weather and predicting front movements rely on knowledge of thermodynamics and atmospheric pressure. High atmospheric pressure tends to push air towards areas of lower pressure, and with a warm front, the difference in pressure can cause winds to become stronger and shift direction.