This decade, St. Louis is expected to be more than 2 degrees Fahrenheit warmer than it was, on average, during the latter half of the 20th century. While locals have endured more sweltering summer days, they have felt the change the most during the cold months. Missouri winters are warming faster than summers, springs and falls.
Warmer air holds more water, which can lead to more severe rainfall. In recent years, rainstorms have pummeled the Midwest and led to widespread flooding across the region. In 2019 in St. Louis, rivers reached near-historic levels, and floodwaters inundated the area around the city’s iconic Gateway Arch.
This storm wasn’t a blip on the radar, but rather a sign of what’s to come. As the planet heats up, St. Louis can expect more extreme rainstorms — and more orders to evacuate low-lying neighborhoods.