How is wind chill calculated? Science North scientist explains

Amy Henson, a staff scientist at Science North in Sudbury, says wind chill values are calculated, not measured like temperatures.
Sudbury can expect a high of -18 Wednesday, but Environment Canada said the wind chill will make it feel like -38 C. (The Associated Press)

On Wednesday, northeastern Ontario is heading back into frigid temperatures—and freezing wind chill values.

Amy Henson is a scientist at Science North in Sudbury. (Supplied)

In Sudbury, expect an actual high of -18. But, Environment Canada said the wind chill will make it feel like -38 C.

Most other areas in northeastern Ontario can expect similar conditions, but Kapuskasing could see a high of -30 C with a wind chill of -42.

So, how does the weather agency arrive at its wind chill predictions?

Amy Henson from Science North joined Markus Schwabe on CBC Radio's Morning North to explain how wind chill is calculated:

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