The U.N. weather agency said Tuesday that Tropical Cyclone Freddy, a deadly Indian Ocean storm that lashed eastern Africa last year, was confirmed to be the longest-lasting cyclone ever recorded at 36 days. The U.N. weather agency said Tuesday that Tropical Cyclone Freddy, a deadly Indian Ocean storm that lashed eastern Africa last year, was confirmed to be the longest-lasting cyclone ever recorded at 36 days. Environment Phys.org – latest science and technology news stories