with dangerous heat and humidity in the forecast 27 storm TR meteorologist Alexis Clemens is breaking down the science behind those terms she's here to explain what the dupoint temperature means and how corn fields could contribute to them it's a Midwestern thing we always say Well it wouldn't be that bad outside if not for the humidity we also talked to the dup point which is linked to that so let's break down what that all means the D Point temperature is the lowest temperature at which Dew will form that's where it gets its name it's the temperature that the air has to cool to for saturation or for rain to occur so the higher the dupoint the more moisture the atmosphere can hold which as you can see is very high today now without humidity your body can naturally sweat and cool itself down sweat forms on your skin and evaporates into water vapor which allows the body to regulate its temperature when D points rise sweat cannot evaporate as easily since there's more moisture in the air that makes the temperature feel hotter than it actually is so sweating is the scientific process of evaporation evapo transpiration means the same thing but this time regarding plants during the summer corn crops release water vapor from their leaves which earns the name corn sweat this is important to know because get this corn fields can actually increase the humidity in the surrounding environment because one acre of corn can add 3 to 4,000 gallons of water to the air you may have also heard of a phrase called the heat Urban island effect where a city city is hotter than surrounding areas due to more heat absorbing surfaces like roads and buildings in urban areas however it seems that rural areas are more humid than cities due to that corn sweat which makes it feel hotter so no matter where you are in southern Wisconsin today though it is going to be hot and humid regardless so remember to take care of yourself for 27 storm track weather I'm meteorologist Alexis Clemens