Cyclone Warnings Explained: How to Read IMD Alerts and Act in Time
A cyclone forecast is useful when people can connect it to a decision: whether to postpone a sea trip, protect a home or move to a safer place. The India Meteorological Department’s new cyclone and marine-weather decision support system, launched on October 12, brings several kinds of hazard information into one map-based platform. IMD says the public system combines cyclone tracks and intensity with information on winds, rainfall, storm surge and rainfall over river catchments. It is intended for residents as well as disaster managers and government agencies. The launch accompanied preparations for the October–December cyclone season. IMD’s launch announcement . Four stages, different time references IMD’s warning sequence begins with a pre-cyclone watch , issued 72 hours in advance. It describes a developing disturbance, the likelihood of intensification and the coastal belt that may experience adverse weather. A cyclone alert follows at least 48 hours before adverse weather is expe...