In mountainous countries like Bhutan, floods are potentially serious dangers for communities since they triggersubsequent hazards such as landslides. The countries lying in the Himalayan Mountain are exposed to floodsowing to the heavy rainfall and glacial lake outburst floods. The forecasting of catastrophic flood hazards iscrucial for the sustainability of these mountainous countries. At the same time, the hydro-met observation systemis inadequate to set up a robust flood-forecasting model in Bhutan.