Bharat Forecast System (BharatFS) has been developed primarily for improving the short- and medium-range weather prediction. Developed by the Indian Institute of Tropical Meteorology (IITM), Pune, the cutting-edge system enhances India’s weather prediction resolution from 12 km to 6 km, enabling every village in India to access more precise and location-specific forecasts. India Meteorological Department officially adopted the Bharat Forecast System (BharatFS) on 26th May 2025. Overview of BharatFS This forecast system runs at a resolution of 6 km, typically about the size of a cluster of panchayats/villages. The goal of BharatFS's development was to enhance the accuracy of extreme weather prediction and produce forecasts at the panchayat cluster level. The new model supersedes its predecessor in terms of model configuration and forecast accuracy. It has improved representation of orography, better filtering, and better conservation properties. The system has been experimental since 2022. The Bharat Forecast System (BharatFS) is based on the Triangular Cubic Octahedral (TCo) dynamical grid that enables the model to operate at 6 km horizontal resolution, surpassing its predecessor (GFS T1534 ~ 12km) and typical global operational models having horizontal resolution of 9–14 km. The supercomputing facilities, Arka (IITM-Pune) and Arunika (NCMRWF Noida), enabled the model to be used for real-time weather prediction by reducing the runtime from ~12 hours to just 3–6 hours. The BharatFS was developed with the objective of generating forecasts at the cluster of panchayats level and improving the prediction of extremes. On research mode, it has demonstrated significant improvement in the rainfall forecast over the core monsoon region and 30% better accuracy for the extreme rainfall forecast compared to the previous operational model. Outcomes The system will boost monsoon tracking, aviation, cyclone and disaster management, agriculture, waterways, defence, flood forecasting, and also support key ministries. Source : IITM