An occluded front.
occluded
occluded
occluded
occluded
occluded
occluded
occluded
When a cold air mass catches up with a warm air mass, it can result in the formation of a cold front. This can lead to abrupt changes in weather conditions, such as thunderstorms, heavy rain, or even snow if the temperatures are cold enough.
occluded
An occluded front.
occluded
An occluded front.