Around the time that Super Typhoon #Surigae had reached its peak intensity (a few hours before sunrise), a #SuomiNPP #VIIRS Day/Night Bad image revealed concentric mesospherc airglow waves propagating outward from the energetic Category 5 storm: https://t.co/DITnpzwpqS pic.twitter.com/JAw0TfHpBW

— Scott Bachmeier (@CIMSS_Satellite) April 18, 2021