WHY Catarina Defied All The Rules — The Hurricane That Formed In Too‑Cold Water

The South Atlantic is supposed to be the quiet tropical ocean. Hurricanes almost never form there, because the water is usually too cool, wind shear is too strong, and the atmosphere does not give storms the same help it gives the western Pacific, the Atlantic, or the Indian Ocean. Then Catarina formed in March 2004 over water near 24 degrees Celsius and reached hurricane strength before striking southern Brazil. This documentary explains why most tropical cyclones need warmer water, why no storm crosses the equator, why the western Pacific produces so many typhoons, and why Catarina still matters for coastal warnings and a warming planet. 00:00 The South Atlantic hurricane that should not exist 01:05 What makes a tropical cyclone 02:25 Hurricanes, typhoons, and cyclones explained 03:35 Why storms do not cross the equator 05:20 Coriolis force and the hurricane eye 07:10 The western Pacific warm pool 09:10 Super Typhoon Haiyan and the Philippines 11:20 Why South America’s Pacific coast stays quiet 13:00 Why the South Atlantic suppresses hurricanes 15:05 Catarina forms near southern Brazil 17:10 Hurricanes as heat engines 19:00 Brazil’s warning problem 20:45 Climate change and shifting cyclone risk