An account in Haute-Garonne, France

A witness observes from their balcony the movement of pollen coming from the surrounding trees. Suddenly a bright point quickly crosses the sky between two clouds. No noise is heard during the observation and the point disappears into the cloudy sky. The witness observes, by day and almost facing the sun, a white ball crossing the blue sky, between two clouds. The witness noticed that there was a lot of pollen flying in the air. It is probably one of these cottony pollens (pollen or seed?) which, facing the sun, became silvery. The movement in the direction of the wind (East wind of 15 to 31 km/h, autan wind) confirms this hypothesis. (For information, the investigator has observed this phenomenon several times from his home, in May on days with autan wind). This case is therefore classified "B": probable observation of pollen or tree seed (plane tree?).