Truly incredible imagery from the Himawari meso sector of multiple shockwaves from a volcanic eruption on Tonga propagating through what was recently subtropical storm Cody. My back of the napkin math estimates put the shockwave speed somewhere in the vicinity of 500-600 mph. pic.twitter.com/lDyNXFpLbE

— Isaac Schluesche (@SlushyWx) January 15, 2022