The New Zealand Meteorological Service is responsible for providing weather forecasts and climato-logical information throughout New Zealand and its island territories (including the Cook Islands) and, by arrangement with the other governments concerned, also in the area covered by the Gilbert and Ellice Islands, Fiji, and Tonga. The headquarters and chief forecasting and analysis centre is located at Kelburn, Wellington. Forecasts for aircraft on overseas trunk routes are supplied from the offices at Auckland and Nandi, Fiji, while the Nandi office also provides an extensive hurricane-warning scheme. Forecasting offices are also located at Ohakea, Wellington, and Christchurch aerodromes, mainly for aviation purposes.