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“temperature inversion”

Stories20

Something in the Sky: The 1994 Michigan UFO Event
March 8, 1994 · Lake Michigan shoreline from Grand Haven to Holland, Ottawa County, West Michigan
United States
UAP · Formation · 47 sources
44Partially documented
Pro early
The Mundrabilla Bus Sighting
October 17, 1988 · Eyre Highway, about 20 km west of the Mundrabilla Roadhouse, Nullarbor Plain, Western Australia
Australia
UAP · Orb / light · 13 sources
18Thinly documented
The Knowles Family Nullarbor Encounter
January 20, 1988 · Eyre Highway, about 40 km west of the Mundrabilla Roadhouse, Nullarbor Plain, Western Australia
Australia
UAP · Egg · 26 sources
26Thinly documented
The Manises UFO Incident
November 11, 1979 · Manises Airport, Valencia, and the Mediterranean between Ibiza and Valencia
Spain
UAP · Other · 47 sources
58Partially documented
The Robert Taylor Incident: Dechmont Woods
November 9, 1979 · Dechmont Law, near the M8 motorway, Livingston, West Lothian, Scotland
United Kingdom
UAP · Other · 58 sources
36Partially documented
Pro early
The Soesterberg Air Base Sighting
February 3, 1979 · Soesterberg Air Base (Vliegbasis Soesterberg), Utrecht province
Netherlands
UAP · Triangle · 20 sources
26Thinly documented
Pro early
UFOs over Fort Ritchie and Site R (Raven Rock Mountain Complex), 1976
July 30, 1976 · Raven Rock Mountain Complex (Site R), near Blue Ridge Summit, Pennsylvania, and Fort Ritchie, Cascade, Maryland
United States
UAP · Other · 12 sources
24Thinly documented
Pro early
Eglin AFB Security Police Sighting over Duke Field
January 31, 1976 · Duke Field (Eglin Auxiliary Field 3), near Crestview, Florida
United States
UAP · Orb / light · 18 sources
33Partially documented
Pro early
Cannon AFB Security Police UFO Sightings, Clovis, New Mexico, 1976
January 21, 1976 · Cannon Air Force Base, near Clovis, Curry County, New Mexico
United States
UAP · Disc / saucer · 22 sources · 2 photos
52Partially documented
Pro early
The Kimba Glowing Doorway Encounter
February 4, 1973 · Eyre Highway between Iron Knob and Kimba, Eyre Peninsula, South Australia
Australia
UAP · Being / humanoid · 12 sources · 1 photos
17Thinly documented
Pro early
The Cook County and Finland AFS Sighting, Grand Marais, Minnesota
September 5, 1966 · Near Grand Marais, Cook County, and Finland Air Force Station, Lake County, Minnesota
United States
UAP · Egg · 11 sources
45Partially documented
The Exeter Incident
September 3, 1965 · Route 150, Kensington, near Exeter, New Hampshire
United States
UAP · Other · 50 sources
33Partially documented
Tinker AFB and Wichita Radar Sightings, 1965
August 1, 1965 · Tinker AFB, Midwest City (Oklahoma City), Oklahoma, with reports across Oklahoma and at Wichita, Kansas
United States
UAP · Formation · 17 sources
51Partially documented
The Red Bluff Incident: Two Highway Patrolmen and the Silent Object
August 13, 1960 · Hoag Road, east of Corning, Tehama County, California
United States
UAP · Egg · 18 sources
32Partially documented
B-29 radar-visual encounter over the Gulf of Mexico (Karas, Naumann / "Harter and Coleman")
December 6, 1952 · Gulf of Mexico, about 100 miles south of the Louisiana coast, about 190 miles from Galveston, Texas
United States
UAP · Other · 23 sources
47Partially documented
The 1952 Washington, D.C. UFO Flap
July 19, 1952 · Washington National Airport and Andrews AFB, Washington, D.C. area
United States
UAP · Orb / light · 97 sources
61Well documented
Clyde Tombaugh sighting, Las Cruces
August 20, 1949 · Las Cruces, Doña Ana County, New Mexico
United States
UAP · Formation · 19 sources
22Thinly documented
The Kenneth Arnold Sighting
June 24, 1947 · Near Mount Rainier and Mineral, Washington
United States
UAP · Other · 67 sources
35Partially documented
The Miracle of the Sun at Fátima
October 13, 1917 · Cova da Iria, Fátima, Ourém, Portugal
Portugal
UAP · Disc / saucer · 47 sources · 4 photos
48Partially documented
Pro early
The Ghost Ship of New Haven: the Great Shippe apparition, 1647
c. 1647 · New Haven Harbor, New Haven Colony (now New Haven, Connecticut)
United States
Paranormal · Other · 22 sources
24Thinly documented

Names4

Documents75 · see all

  • Project Blue Book Case Files on Sightings of Unidentified Flying Objects (UFOs): 595553 Official release
    Department of Defense. Department of the Air Force. Air Materiel Command. Intelligence Department. Technical Intelligence Division.· 1947· 2 pages· 1 page mentions it
    • p. 2 …GENTLEMEN! THE RADAR-SIGHTINGS OVER WASHINGTON WERE CAUSED BY TEMPERATURE INVERSION. THE OBJECTS WERE REFLECTIONS OF GROUND OBJECTS...CARS...TRAINS…
  • Air Force Project Blue Book Special Report 14 (Hynek's annotated copy) Report
    Center for UFO Studies· 139 pages· 6 pages mention it
    • p. 11 …Correlation of controllers' reports with Weather Bureau records indicated that a temperature inversion almost always existed when such targets appeared…
    • p. 19 …Temperature inversion reflections can give a return on a radar scope that is as sharp as that received from an…
  • assort1 FOIA release
    Office of the Secretary of Defense· 40 pages· 5 pages mention it
    • p. 28 …NMCC should ask for temperature gradients in the area (i.e., for possible aloft inversions). The CJCS also questioned the…
    • p. 34 …The temperature inversion analysis indicated no significant temperature inversion at Eglin AFB at that time. The only inversion present was…
  • Assorted NMCC documents Document
    NICAP· 40 pages· 5 pages mention it
    • p. 28 …NMCC should ask for temperature gradients in the area (i.e., for possible aloft inversions). The CJCS also questioned the…
    • p. 34 …The temperature is 3. The temperature inversion analysis indicated no significant temperature inversion at Eglin AFB at that time. The…
  • FAA news releases Document
    FAA via National Archives / The Black Vault· 10 pages· 1 page mentions it
    • p. 6 …The weather was clear with a temperature inversion reported at 23,500 feet. Captain Terauchi reported the lights appeared in…
  • (U) Unidentified Flying Objects FOIA release
    Central Intelligence Agency· 2002-06-10· 4 pages· 1 page mentions it
    • p. 3 …These include temperature inversions, balloons from religious celebrations, migratory birds, and kites. In November, 2017, NAP II and DO ran…

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