AUSTIN (KXAN) – Meteorologists classify air masses based on their humidity and temperature. The location of an air mass is a key factor in determining its humidity. Air masses that form over ...

This clash of air masses creates atmosphere instability at the boundary, where the warm and less dense air is pushed upward above the cold and denser air, creating precipitation. A cold front ...

This clash of air masses creates atmosphere instability at the boundary, where the warm and less dense air is pushed upward above the cold and denser air, creating precipitation. A cold front ...

High atmospheric stability means weak vertical mixing of air, while calm wind conditions reduce the transport of air pollutants horizontally. Due to the combination of the two factors, fine ...