According to a report I saw on TV, lack of a pumping facility that could cool the fuel was also a factor but, nonetheless, even airplanes think it’s really hot out! (By the way, the plane appears to be smiling but that’s just a ‘dolphin smile’ – it’s actually mulling over a plan to kill everyone on board if they actually try to make it fly. So, it’s a good thing the flight was cancelled.)
The high tomorrow is predicted to be 38 C (100 F). The following report from NHK lists Kumamoto and Saga as cities predicted to have particularly high temperatures tomorrow:
https://www3.nhk.or.jp/nhkworld/en/news/20190802_39/
– Kirk
