James E. McDonald was an American atmospheric physicist and meteorologist who spent most of his career at the University of Arizona. He served as associate director then scientific director of its Institute of Atmospheric Physics and rose to full professor of meteorology and atmospheric sciences.
In 1968 McDonald testified before Congress that UFOs represented a genuine physical phenomenon best explained as extraterrestrial surveillance. He had reviewed hundreds of Project Blue Book files and interviewed numerous witnesses, concluding that official investigations were inadequate.
- Ph.D. in physics from Iowa State University in 1951 after B.A. from University of Omaha (1942) and M.S. from MIT (1945).
- Served as Lieutenant Junior Grade in the U.S. Navy as aerologist during World War II.
- Joined University of Arizona faculty in 1954 and remained there until his death.
- Testified 29 July 1968 before the House Committee on Science and Astronautics on UFOs.
- Also addressed the UN Outer Space Affairs Group in 1967 and the AIAA in 1968.
- United States
- U.S. NavyLieutenant Junior Grade, 1942–1945
- University of ArizonaProfessor of Atmospheric Sciences, 1956–1971
- Institute of Atmospheric PhysicsSenior Physicist and former director
- Iowa State UniversityPh.D. 1951; Assistant Professor 1950–1953
- MITM.S. Meteorology 1945
- House Committee on Science and AstronauticsTestified 29 July 1968
Background
James Edward McDonald was born on 7 May 1920 in Duluth, Minnesota. He earned a B.A. in chemistry from the University of Omaha in 1942. During World War II he served in the U.S. Navy as a cryptographer and aerologist, reaching the rank of Lieutenant Junior Grade. He later obtained an M.S. in meteorology from MIT in 1945.
After the war McDonald completed a Ph.D. in physics at Iowa State University in 1951. He taught meteorology there as an assistant professor from 1950 to 1953. He then spent a year as a research physicist in the meteorology department at the University of Chicago. In 1954 he moved to the University of Arizona.
At Arizona McDonald helped establish the meteorology program. He became associate professor of meteorology in 1954 and full professor in 1956. He served as associate director of the Institute of Atmospheric Physics from 1954 to 1956 and scientific director from 1956 to 1957. He later held the title of senior physicist at the institute while continuing to teach and conduct research on cloud physics and weather modification.
McDonald advised federal agencies including the National Science Foundation, Office of Naval Research, National Academy of Sciences, and Environmental Science Service Administration. He organized a 1956 conference on the scientific basis of weather modification. His work focused on atmospheric optics, radiation, and cloud seeding.
McDonald had a personal UFO sighting near Tucson in January 1954. From 1954 onward he began investigating local sightings. By 1966 he was interviewing hundreds of witnesses nationwide and reviewing Project Blue Book files at Wright-Patterson Air Force Base. He concluded the Air Force had mishandled evidence.
On 7 June 1967 McDonald spoke to the UN Outer Space Affairs Group. He stated there was no sensible alternative to the hypothesis that UFOs were extraterrestrial probes. In March 1968 he told an AIAA audience that evidence pointed to UFOs as extraterrestrial surveillance craft.
On 29 July 1968 McDonald submitted a detailed statement and testified before the House Committee on Science and Astronautics. He described specific cases including radar-visual sightings and electromagnetic effects. He criticized Project Blue Book for inadequate methods and data withholding. He argued a substantial fraction of reports involved craft-like objects under intelligent control and urged immediate open scientific study.
McDonald also critiqued the 1969 Condon Report, noting that over 30 percent of its cases remained unexplained despite the report's overall negative conclusion. He continued lecturing and writing on UFOs into 1970 while testifying against the supersonic transport on environmental grounds.
McDonald died on 13 June 1971 in Tucson, Arizona, at age 51. He had attempted suicide in May 1971 and survived initially but was found dead from a gunshot wound with a revolver and note nearby. His papers on atmospheric science and UFOs are preserved at the University of Arizona library.
Legacy
James E. McDonald died on 13 June 1971. His 1968 congressional testimony remains one of the most detailed scientific critiques of official UFO handling presented on Capitol Hill.
McDonald's work on cloud physics and weather modification is still referenced in atmospheric science. His UFO statements continue to be cited in discussions of government transparency on the topic.
Last updated 25 October 2026