Radar Anomaly Over Washington, D.C. Explained: Signal Interference, Not Extraterrestrial Activity

Edited by: Uliana S.

On June 20, 2025, a star-shaped anomaly appeared on weather radar over Washington, D.C., during a severe thunderstorm.

Initial speculation about the anomaly's origin, including extraterrestrial activity, was quickly dispelled.

Meteorologist Matthew Cappucci attributed the radar artifact to signal interference from a nearby structure, such as a water tower near Dulles Airport.

The incident highlights the importance of accurate information during severe weather events to prevent misinformation.

Sources

  • Economic Times

  • Signal interference near D.C. airport caused radar anomaly

  • NWS Service Change Notices

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