Weather Blog A Destructive Glacial Outburst Flood in Peru Rockfalls overwhelmed one of Vallunaraju’s glacial lakes, unleashing a destructive debris flow that struck the city of Huaraz. Read More… About Author OTW Observer See author's posts Post navigation Previous Record Heat in Northwest European WatersNext Meandering Through Baton Rouge Related Stories Tropical Storm Arthur Weather Blog Tropical Storm Arthur June 19, 2026 Desert Field Test With NASA Advanced Rover Prototype Weather Blog Desert Field Test With NASA Advanced Rover Prototype June 18, 2026 El Niño Is Underway Weather Blog El Niño Is Underway June 18, 2026