Stu Ostro’s  13th annual! I thought this year would be the easiest one yet, with GOES-16 having become fully operational just before the start of the year, but turns out that makes it even more difficult! There are now so many great images. Literally every hour of every day, mesmerizing loops, esp. the high-resolution rapid-scan ones, show the wondrous fluidity of the atmosphere.  See it all here>>>