Great Lakes Ice Coverage Reaches Historic Low Amid Record Warm Winter Temperatures
CHICAGO — The Great Lakes have recorded their lowest ice coverage in history, with only 2.2 percent of the lakes' surfaces frozen as of February 2024, according to the National Oceanic and Atmospheric Administration. This marks a significant decline from the historical average of 40 percent for this time of year, driven by record warm winter temperatures across the region, which have averaged 5 to 10 degrees above normal since December. The phenomenon, observed by scientists at the Great Lakes Environmental Research Laboratory, is attributed to a persistent lack of Arctic air masses and above-average water temperatures, raising concerns about ecological impacts, including altered fish spawning patterns and increased shoreline erosion. Authorities warn that the reduced ice cover may lead to heavier lake-effect snow and heightened risks for coastal flooding in upcoming seasons.