Wind chill chart shows when frostbite is a danger A chart from the Weather Service shows the relationship between temperature, wind and how long before frostbite occurs.

With winter weather settling over Michigan, here's what you need to know about exposed skin as the temperature drops and winds pick up.

Different parameters go into calculating the wind chill temperature index, and this is the fancy wind chill equation that you could mathematically solve to get the wind chill values.

The simple interpretation of the wind chill is how cold the air feels when the wind is factored in. This is the winter counterpart to the "heat index" when it comes to "feels-like" temperatures.

Different parameters go into calculating the wind chill temperature index, and this is the fancy wind chill equation that you could mathematically solve to get the wind chill values.