Representation image MUMBAI: A flood forecasting and warning system for the city, launched by the state government last year, is not yet fully operational and did not give any warning of Saturday night’s heavy rain, said BMC officials. Besides, the installation of four more Doppler weather radars — two in the city, and one each in Thane and Navi Mumbai — to get a more accurate weather forecast is also delayed, though these were supposed to be ready by the 2020 monsoon. The Integrated Flood Warning System for Mumbai (iFLOWS-Mumbai) is one of just two such urban flood warning systems in the country — the other being in Chennai — developed by the ministry of earth science (MoES) through collaborations with top research institutions.