Extreme heat sometimes described as heat wave is a period of abnormally hot weather. A time period of five consecutive days is often used to define a heat wave. Extreme heat is a period of high heat and humidity with temperatures above 90 degrees for at least two to three days. In extreme heat our body works extra hard to maintain a normal temperature, which can lead to death. Extreme heat is an extended period of usually high temperatures and often high humidity that causes temporary modifications in lifestyle and may have adverse health effects on the affected population. The World Meteorological Organization (WMO) defines extreme heat as a period during which the daily maximum temperature exceeds for more than five consecutive days the maximum normal temperature by 9 degrees Fahrenheit ( 5 degrees Celsius), the normal period being defined as 1961 - 1990. Extreme heat occur when high pressure in the atmosphere moves in and pushes warm air towards the ground, and it feels hotter, espe...