Between September and December, a thundercloud shows up at the same point above the Australian Tiwi islands at 3pm each day. WWII pilots and sailors used to use it as a reference point because of its regularity, nicknaming it ‘Hector the Convector’. (Image: Djambalawa) pic.twitter.com/Tz9I1svhi4

— Quite Interesting (@qikipedia) December 5, 2020