@alexandre-Graziani

These radars show these artefacts probably due to terrain or WiFi interferences
https://community.windy.com/topic/8098/not-real-storm-bands?_=1607588609120

This is not a bug from Windy as the Meteorological Services from Spain AEMET which is the data source, display the same picture. BAE92A08-3569-40CF-A67E-20CF3F33DBF4.jpeg