Wind Chill

Wind Chill

Canada’s wind chill index is based on the loss of heat from the face. It was developed using human volunteers, computer technology, and a better understanding of how skin loses heat. The index is expressed in temperature-like units which are easier for everyone to understand.

The best way to understand wind chill is to think of it as a feeling. The new wind chill index represents how your skin will feel at a given temperature in a calm day. For instance, if the outside air temperature is -5 degrees Celsius and the wind chill is -25, your face will feel as cold as it would at -25 degrees Celsius on a calm day.

What to do for wind chill:

 

Wind Chill

 

Health Concern

 

What to Do

 

0 to -9

 

Slight discomfort

 

Dress warmly

 

 

-10 to -24

 

Uncomfortable, bare skin feels cold, risk of hypothermia

 

Dress in layers, wear a hat, mitts & scarf, keep active

 

 

 

-25 to -44

 

 

 

Skin may freeze, Risk of hypothermia

 

Check face, fingers, toes, ears, & nose for numbness or whiteness, dress in layers, cover bare skin, wear a hat, mitts & scarf, keep active

 

 

 

-45 to -59

 

 

 

Bare skin may freeze in minutes

 

Check face, fingers, toes, ears, & nose for numbness or whiteness, dress in layers, cover bare skin, wear a hat, mitts & scarf, keep active

 

-60 and colder

 

Bare skin may freeze in less than 2 minutes

 

It is dangerous! Stay indoors