Morris Tepper earned a Ph.D. in fluid mechanics from Johns Hopkins in 1952. Before that but after earning an M.A. in mathematics from Brooklyn College, he had joined the Air Force in 1943 and served as a meteorologist in the Pacific Theater during World War II. In 1946 he joined the Weather Bureau as a research meteorologist. After becoming chief of the severe local storms research unit there in 1951, he transferred to NASA in 1959 as a meteorologist in the office of space flight development. By 1962, he had become director of meteorological systems in the office of applications (later, office of space science and applications). In 1969 he added the title of deputy director of the earth observations programs division. He also worked through the U.N. Committee on Space Research and elsewhere to promote international cooperation in the field of meteorology in space. After serving as a special project officer at Goddard in 1978-1979, he left NASA in the latter year to become a professor of mathematical physics at Capitol College, Maryland.