Heavy Weather (1) (ヘビー・ウェザー その① Hebī Wezā Sono 1), originally A Different Person (別人 Betsujin) in the WSJ release, is the seven hundred nineteenth chapter of the JoJo's Bizarre Adventure manga. It is also the one hundred twenty-fifth chapter of Stone Ocean.
Weather's memory disc was returned to him by Under World. Weather kneels from the shock of recovering his memories, sitting in a seat reserved for hospital patients. When a patient complains about it and a nurse tells him to let the seat, Weather is a changed man, having become extremely aggressive. He drowns the nurse, filling his corpse with so much water he becomes a bloated cadaver. Weather leaves the hospital accompanied by a flabbergasted Anasui, he briefly announces his intention of killing his brother, confusing Anasui even more.
In the cave, Versus tries to untie himself, prompting Ermes to try to punch him. However, as her arm touches one of the rainbows, the arm breaks down into into multiple slimy balls. Versus decides to reveal that Weather's true ability is influencing the ozone layer, and that he's become so dangerous death has become almost inevitable. Likewise, Pucci warns everyone present that in order to stop the imminent onslaught, killing Weather or sealing his ability again is the only way to survive. Pucci and Versus run away, but when Jolyne tries to tie Versus again, she instead stumbles upon the policemen. The children are now safe, but a policeman recognizes Jolyne. Before he's able to act, the policeman's head explodes into what is revealed as eggs from which multiple snails hatch.