UFO Flaps/Waves
UFO flaps are intense, concentrated periods of high-volume UFO sightings, such as the 1952 Washington, D.C. radar incidents, the 1947 Kenneth Arnold sighting/Roswell, or the 1997 Phoenix Lights. These waves often feature multiple witnesses, radar confirmation, and military involvement, lasting from days to years.
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Key Historical UFO Flaps:
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Battle of Los Angeles (1942): During WWII, U.S. forces fired anti-aircraft shells at unidentified objects over L.A., initially blamed on war nerves or weather balloons.
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1947 "Flying Saucer" Summer: Following Kenneth Arnold's sighting on June 24, a massive wave occurred, including the famous Roswell Incident.
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The Green Fireballs (1948–1950s, New Mexico): Numerous, unexplained sightings of brilliant green fireballs in the American Southwest caused enough concern to trigger a secret U.S. Air Force investigation.
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Lubbock Lights (1951, Texas): Over three nights in August 1951, three Texas Tech professors saw a, "semicircle of lights" flying at high speeds. Reports spiked across the city, and a student captured a famous photograph of the lights.​​​​​​​​​​​​​​
1952 Washington, D.C. Flap: Multiple radar blips and visual sightings of objects over the White House and Capitol, leading to jet scrambles.
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1966 Michigan "Swamp Gas" Incidents: A wave of sightings, including in Dexter and Hillsdale, which the Air Force attributed to swamp gas, leading to intense ridicule and Congressional investigations.
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1973 US South Flap: A high-volume surge of reports, including the Pascagoula, Mississippi, abduction incident.
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1977 Colares Flap (Brazil): A series of incidents where residents reported being attacked by beams of light, causing injuries, which were investigated by the Brazilian Air Force.​​
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1984–1986 Hudson Valley Wave: Around 5,000 witnesses reported large, V-shaped objects over New York and Connecticut.
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1989–1990 Belgian Wave: A, long-lasting wave of triangular,, silent UFOs witnessed by civilians and police, with NATO radar tracking.
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1997 Phoenix Lights: Thousands witnessed massive, V-shaped or individual lights moving slowly over Arizona.
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2024 Drone Sightings (NE US): Widespread reports of mysterious drones or UAS over critical infrastructure in the northeastern U.S.​​​​​​​​​​​​
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These events often prompt mainstream media coverage and temporary, heightened government scrutiny before typically being dismissed as conventional phenomena by official agencies