Indonesia’s government has emphasized that the recent catastrophe in Sumatra was triggered by an extraordinary meteorological event. Cyclone Senyar formed in the Malacca Strait — where such storms are “extremely rare” — before…

Indonesia’s government has emphasized that the recent catastrophe in Sumatra was triggered by an extraordinary meteorological event. Cyclone Senyar formed in the Malacca Strait — where such storms are “extremely rare” — before…