Q: What is air mass cT?

Arab Weather - The cT (Continental Tropical) air mass is a continental tropical air mass that forms over dry and hot desert and continental regions, such as the great deserts of Africa or the Arabian Peninsula. This mass is characterized by being hot and dry, where temperatures are very high and humidity is low.

cT air masses usually affect the summer, causing severe heat waves in the areas they affect, resulting in very dry and hot weather.