The term "Kumo ga Chigireru Toki" is not a widely recognized concept, historical event, or scientific phenomenon in general English-language encyclopedic literature. The phrase is Japanese (雲がちぎれる時) and translates literally to "When the Clouds are Torn Apart" or "When the Clouds are Rent."
In the context of contemporary Japanese culture, the term is primarily identified as the title of a musical single by the singer-songwriter UA. Released on November 21, 1996, through Speedstar Records, the song served as the fourth single from her debut studio album, 11. The track was composed and produced by Hiroshi Fujiwara, a notable figure in the Japanese club and hip-hop scenes, while the lyrics were written by UA. Musically, the work is classified within the R&B and soul-pop genres. The single reached number 73 on the Oricon Singles Chart.
Beyond its status as a specific musical work, "Kumo ga chigireru" describes a meteorological visual—the appearance of scudding or fragmented clouds—but this does not constitute a specific encyclopedic entry outside of its linguistic or artistic usage. There is insufficient information to categorize the term as an established concept in broader academic or historical contexts.