The air mass that brings hot weather is called a "continental tropical" air mass. This air mass forms over warm land areas and has high temperatures and low humidity. It is typically associated with clear skies and sunny weather.
A hot air mass is typically associated with tropical air masses. These air masses are warm and humid, and they form near the equator where the sunlight is strongest. When tropical air masses move away from the equator and into other regions, they can bring hot temperatures with them. For example, in North America, hot and humid air masses from the Gulf of Mexico can move northward during the summer, leading to heatwaves in certain areas.
