Weather Blog Arctic Sea Ice Ties for 10th-Lowest on Record Satellite data show that Arctic sea ice likely reached its annual minimum extent on September 10, 2025. Read More… About Author OTW Observer See author's posts Post navigation Previous Cooper Creek Replenishes Lake EyreNext 26C weather to mark ‘last blast of summer’ in London before rain sweeps in 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