Early 8 November 1975, Mountain Standard Time; NMCC chronology records Eastern Standard Time
Outcome: Open (Unresolved). The NMCC recorded radar and visual reports, an unsuccessful fighter response and NORAD’s decision to carry the radar incident as a fade remaining unknown. The surviving summary does not identify the cause or establish that every light and radar return shared one origin.
An incident distinct from the 1967 missile story
During the early hours of 8 November 1975, reports of lights and radar returns came from the Malmstrom missile-field region of central Montana, including the Lewistown area. Two F-106 interceptors were launched. The contemporary record is a National Military Command Center memorandum dated 8 November, supplemented by operational updates.
This episode is separate from the much-discussed March 1967 missile shutdown allegations. The 1975 documents reviewed here do not establish a missile malfunction caused by an unidentified object, and that earlier story should not be imported into this case.
What the first telephone report said
A NORAD telephone report recorded at 03:08 EST said seven height-finder radar cuts had been received at 02:53 EST, with reported altitudes between 9,500 and 15,500 feet. Ground observers reported lights and jet-like engine sounds. The memorandum says an FAA cross-check found no jet aircraft within one hundred nautical miles of the sightings.
These are times in Eastern Standard Time as used by the command centre. Montana was two hours earlier, so the principal sequence falls shortly after midnight on 8 November locally. The reported radar cuts are instrument reports relayed into a memorandum, not raw data available here for independent reprocessing.
The fighter response and low reported lights
The F-106s became airborne at 02:57 EST. Later reports gave varying radar speeds and described lights seen much lower than the fighters’ operating height. The interceptors had to maintain at least 12,000 feet because of mountainous terrain and failed to make contact.
One relay said lights went off as the fighters arrived and came on again after they left. That timing is recorded as ground observers’ report. It does not by itself establish deliberate evasion, and an unsuccessful interception under terrain constraints is not evidence that the objects outperformed the fighters.
NORAD’s recorded disposition
The second page says NORAD considered whether northern lights could produce similar radar phenomena, but its weather-service check found no possibility of aurora at that time. It also records NORAD’s decision to carry the incident as a radar fade remaining unknown, after which only visual reports continued.
That specific aurora check does not exclude every radar-propagation effect or establish a single physical source for the returns and lights. The packet lacks the complete raw radar and meteorological record needed to test those possibilities afresh. A follow-up update on 9 November provided no additional information.
Why the outcome remains Open
UKPX records Open (Unresolved) because the contemporary operational disposition explicitly left the incident unknown after checks and a fighter response. The classification concerns identification, not proof of unusual technology.
The documentary record is stronger for what the command centre was told and did than for the nature of the underlying objects. Radar reports, ground visual estimates and the lack of interceptor contact must remain distinct when assessing its significance.
Location and map reference
Malmstrom missile-field region near Lewistown, central Montana. Broad reference rounded from the memorandum’s last reported radar position, 46°50′N 109°20′W; not a witness address, missile-site location or complete flight path.
Sources and review
Released military documents. FOIA packet pages 34–35, the original two-page NMCC memorandum of 8 November 1975; operational updates on pages 89 and 91. Original page images checked against OCR. Sources and classification checked 13 November 2026.