Weather Blog Making Sense of Holes in the Clouds Scientists speculated about these holes for decades, but it’s now well understood that cavum clouds are caused by airplanes. Read More… About Author See author's posts Continue Reading Previous: Flood alerts issued across London as Met Office shares weather warningNext: Erupting Volcano causes Yellow Alert… Related Stories Blast From the Past: A Modern Lake in an Ancient Crater Weather Blog Blast From the Past: A Modern Lake in an Ancient Crater July 1, 2025 A Cosmic Explosion Over Siberia Weather Blog A Cosmic Explosion Over Siberia June 30, 2025 A Dusty Vestige of the Old West Weather Blog A Dusty Vestige of the Old West June 29, 2025
