A black wall of clouds suddenly appears in the sky over Changchun, Jilin, China, undated. It lasted for nearly 30 minutes. (1645785607/AsiaWire) Residents Baffled As Dark ‘Cloud Wall’ Suddenly Appears In Evening Sky Post author:Simona Kitanovska Post published:December 14, 2023 Post category:Asia/Video Post comments:0 Comments Continue ReadingResidents Baffled As Dark ‘Cloud Wall’ Suddenly Appears In Evening Sky