Yes, wind chill is a real threat. It can and will harm you.
Full story:
http://lite.cnn.io/en/article/h_1a797d9cbd0949096c820b40809b2fcb
(CNN) - Do you ever walk outside, having just checked the weather, and
the wind punches you in the face?
The exposed parts of your body may feel like they're freezing. This
phenomenon is called wind chill.
That's right, the weather term isn't a myth. Wind chill is real, so
here's some facts to help you understand what it means and how to
protect yourself:
What is wind chill?
Wind chill is essentially how cold people and animals feel when they're
outside, according to the National Weather Service.
Wind chill is based on how much heat is lost from exposed skin while
it's windy and cold. The faster the wind, the more heat is drawn from
the body, which lowers the skin temperature and, ultimately, the
internal body temperature.
"The critical thing is how long you can expose your skin before
freezing," said Tom Sater, CNN meteorologist. "When the winds are
stronger, it can whip the heat away from your body quicker."
Wind chill only applies to people and animals, the NWS says. The only
effect wind chill has on inanimate objects -- such as cars or water
pipes -- is that it shortens the amount of time it takes for the object
to cool.
Why is it dangerous?
Wind chill can lead to frostbite, hypothermia and, ultimately, death.
Frostbite is caused by freezing of the skin and underlying tissues. It's
most common on the fingers, toes, nose, ears, cheeks and chin, according
to the Mayo Clinic. Severe cases can kill body tissue.
Hypothermia occurs when your body loses heat faster than it can produce
it, the Mayo Clinic says. Left untreated, it can lead to the failure of
the heart and respiratory system and, eventually, death.
How is wind chill measured?
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