A continental tropical air mass is a warm, dry air mass that forms over land in tropical regions. It typically develops in areas with high temperatures and low humidity, such as deserts. This type of air mass is characterized by its stability and can lead to clear skies and hot weather. When a continental tropical air mass moves into a different region, it can influence local weather patterns. For example, it may bring hot and dry conditions to areas that are usually cooler or wetter. This can affect agriculture, water supply, and overall climate in the affected regions.