An account in Paris, France

On May 13, 2011 at 12:35 a.m., several people observe a luminous phenomenon in the sky. One witness reports having seen the movements of 7 very bright orange balls. The description given by the witness matches the characteristics of Thai lanterns in terms of color, number, and altitude. The circular and erratic movements may be surprising, but in an urban environment, there are many sources of local atmospheric turbulence: car traffic, forced ventilation of buildings, heating or air conditioning. Other testimonies indicate disordered movements of lanterns above cities. Even though the release of Thai lanterns is banned in the city, it turns out that this ban is not always respected, perhaps due to the authors' ignorance. This case is therefore classified "B": probable Thai lanterns.