2017-18 Australian region cyclone season

The 2017-18 Australian region cyclone season is the period of the year when most tropical cyclones form within the Southern Indian Ocean and Pacific Oceans between 90°E and 160°E. The season officially runs from November 1, 2017 to April 30, 2018, however a tropical cyclone could form at any time between July 1, 2017 and June 30, 2018 and would count towards the season total. During the season, tropical cyclones will be officially monitored, by one of the five Tropical Cyclone Warning Centres (TCWCs) that are operated in this region. Three of the five centres are operated by the Australian Bureau of Meteorology in Perth, Darwin, and Brisbane, while the other two are operated by the National Weather Service of Papua New Guinea in Port Moresby and the Indonesian Agency for Meteorology, Climatology and Geophysics in Jakarta, Indonesia. The United States Joint Typhoon Warning Center  (JTWC)  and other national meteorological services including Météo-France also monitored the basin during the season.