To reflect the situation of American nationallevel subjective operational products of severe convective weather prediction and provide the reference to the CMA （China Meteorological Adiministration) severe weather prediction operations, the newest developments of American nationallevel subjective operational products of severe convective weather prediction (its products, generation and issuance regulation) were analyzed. Some proposals were put forward to the further development of CMA severe weather prediction operations. The conclusion could be drawn through the analysis that American nationallevel subjective operational products of severe convective weather prediction mainly are the classified probability forecasts. They have been formed a systemic product series of shorttime, shortterm and mediumterm forecasts now. By using of contrast, CMA severe weather prediction operations should strengthen their work in these four respects as follows. First, the application of climatology, meteorology, analysis technology and diagnosis technology of severe convective weather. Second, investigations of the forecast methods and mesoscale numerical forecast products which are based on the high resolution of time and space scales. Third, construct a steadily special team. The last is the scientific operation flow and efficient transportation of integrated monitoring. 