 The most recent off-season storm is Tropical Depression 01F, which developed during September 2018 and impacted the Solomon Islands.The strongest tropical cyclone to exist during the off-season in terms of wind speed was Severe Tropical Cyclone Donna of 2017, with maximum 10–minute sustained winds of 125 mph (205 km/h), while the most intense by central pressure was Severe Tropical Cyclone Xavier of 2006, with an estimated value of .The deadliest and most damaging system was Severe Tropical Cyclone Namu, which caused over 100 deaths, when it impacted the Solomon Islands during May 1986.