With dangerous wind chill temps expected across Southeast Michigan this week, some schools will need to decide if they want to stay open.
A wind chill advisory has been issued for all of Southeast Michigan starting at 7 p.m. today until noon on Wednesday as wind chills will range from -15 to -20 degrees (Fahrenheit), which could lead to frostbite for exposed skin in as little as 30 minutes.
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Hundreds of districts were closed on Tuesday, and we could see more closing on Wednesday as the frigid cold continues.
So, how cold does it have to be for Michigan schools to close?
The rule most school districts follow is: if the wind chill is -25 or lower, schools will close.
However, many other variables can force this rule to be flexible. For example, if there's snow or ice with the wind chill.
The -25 degree benchmark is likely because of frostbite concerns. Frostbite can occur starting around -20 degrees.
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