Hazards: Extreme Heat
Threats: Extreme Heat
During the summer months, St. Louisans are especially vulnerable to heat-related hazards. On warm summer days, the city can be as much as 10 degrees warmer than its surrounding areas. The city's infrastructure - largely made up of asphalt, concrete and metal - traps the heat. This is known as the "urban heat island" effect.
Heat waves are particularly dangerous for children, seniors, people with cardiovascular disease, and people taking psychotropic and other medications. In
A heat wave's duration plays an important role in how people are affected. Studies show that a significant rise in heat-related illnesses occurs when excessive heat lasts for more than two days. Spending even two hours per day in air-conditioned spaces can significantly reduce the number of heat-related illnesses.
For information on cooling centers and other assistance during extreme heat, please call 211.