Tropical Cyclones
In the tropical cyclone hazard profile potential wind hazard due to cyclonic disturbances formed in the Bay of
Bengal and either crossed the coast of Sri Lanka or moved away within 100 kilometres of the coastline were
considered. The NCEP/NCAR re-analysis data for such events were downloaded and incorporated into “Weath er
Research and Forecasting (WRF)” model at a spatial resolution of 10 x 10 km. After executing the model, the
maximum wind speed at each grid cell over Sri Lanka was extracted to develop the output.