The main purpose of this paper is to assess the current forecast capabilities of heavy rainfall events by the Central Weather Bureau. Data for both the typhoon and non-typhoon events in the period of 1977-1989 were used. The methods employed included (1) Percentage Correct, (2) Threat Score, (3) Prefigurance and (4) Postagreement. Results suggest that the follow-up applied research of the TAMEX Project is instrumental to improve the forecasting skill of heavy rainfall. The 1992 TAMEX forecast Exercise appears to be an important measure in this matter.