On the morning of January 17 Japan time, my daughter and grandson were in a park near our home in Yokohama when she noticed that the clouds looked very unusual.

On the morning of January 17 Japan time, my daughter and grandson were in a park near our home in Yokohama when she noticed that the clouds looked very unusual. She took some photos [1]. We speculated that the clouds might have been affected by the shockwave from the Tonga eruption. Other people in Yokohama posted similar photos to Twitter [2, 3, 4]. [1] http://gally.net/miscellaneous/20220117_Yokohama_clouds/index.html http://gally.net/miscellaneous/20220117_Yokohama_clouds/inde... [2] https://twitter.com/hiboshi045/status/1482884882837966853 https://twitter.com/hiboshi045/status/1482884882837966853 [3] https://twitter.com/mimikaki75/status/1483037087213375488 https://twitter.com/mimikaki75/status/1483037087213375488 [4] https://twitter.com/YasuA_Yokohama/status/1482878942176747523 https://twitter.com/YasuA_Yokohama/status/148287894217674752...