RGB Air Mass Product Extra Tropical Transition Case Studies

The air mass product is an RGB composite based upon data from infrared and water vapor channels from Meteosat Second Generation (MSG). A version is also available from the GOES Sounder. Originally designed and tuned to monitor the evolution of extra-tropical cyclones, in particular rapid cyclogenesis, jet streaks and PV (potential vorticity) anomalies by scientists at (EUMETSAT), it is also useful for tropical/subtropical applications. The product highlights differences between dry, tropical and cold air masses. Several case studies of the Air Mass product are presented for tropical cyclones with an emphasis on extra tropical transition.