In the Kansas City area, it isn't uncommon for the humidity to reach levels commonly associated with some tropical regions. Humidity makes the temperature seem higher than it is - this is commonly referred to as the Heat Index. For example, a 95 degree day with high humidity may have a Heat Index of 105 degrees - meaning it feels like it's 105 degrees. Heat Alert - means the heat can be dangerous for anyone. Heat Cramps or Heat Exhaustion are likely with physical activity.
Heat is dangerous for everyone, especially elderly and the very young.
The stress on the body can be exacerbated when atmospheric conditions cause pollutants to be trapped near the ground. Strong winds and blowing dust can worsen the situation. Rise in the heat index - The body's perception of the apparent temperature is based on both the air's real temperature and the amount of moisture present in the air. Humidity and mugginess make the temperature seem higher than it is. In high humidity, an 85 degree day may be perceived as more than 95 degrees.