Weather Blog Petit Saut Reservoir A dam along the Sinnamary River created this artificial lake in northern French Guiana. Read More… About Author See author's posts Continue Reading Previous: Newest London weather map shows temperatures dropping to 4C in cold blastNext: Why London could actually get colder from climate change, not hotter 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