Prediction of a typhoon using a fine-mesh NWP model.

The ECMWF operational grid point model (with a resolution of 1.875o of latitude and longitude) and its limited area version (with a resolution of approximately 0.47o of latitude and longitude) with boundary values from the global model have been used to study the simulation of the typhoon Tip. The fine-mesh model was capable of simulating the main structural features of the typhoon and predicting a fall in central pressure of 60 mb in 3 days. The structure of the forecast typhoon, with a warm core (maximum potential temperature anomaly 17 K), intense swirling wind (maximum 55 m s-1 at 850 mb) and spiralling precipitation patterns is characteristic of a tropical cyclone. -from Author