You might not think of working out in these sweltering summer conditions, but Marines at Camp Lejeune must stick to their training.
Before they train, their commanders always check the flag warning on the automated heat stress system website which displays flag warnings. The flags, displayed around the base and on the base website, range from blue to black. Black signifies the worst conditions.
Data is collected in boxes throughout the base to calculate air temperature, humidity, and the effect of heat stress on the body of a Marine.
There are currently seven sites at the base connected to the automated heat stress system.