A bitter cold snap continues to grip Michigan, forcing school closures and prompting warming centers to extend hours for those most at risk.
The National Weather Service says temperatures of 15 to 19 degrees are expected Wednesday in the Detroit area. Detroit's low temperature Tuesday was 1 degree. Gwinn in the central Upper Peninsula was Michigan's cold spot at minus 17.
Two warming centers in Detroit extended their hours Tuesday to accommodate rising demand, while sheriff's deputies patrol in search of homeless people in danger of freezing.
Frostbite dangers
If you're out in the cold for more than just five to 10 minutes, watch out for the signs of frostbite.
Dr. Alfred Baylor of Detroit Receiving Hospital said is anyone notices any pain or tingling in their skin they should get inside immediately.
"If you start getting whiting, blue, come see us. You could get an infection," Baylor said.
If you do end up being exposed to the cold for too long and are frostbit, Baylor said frozen tissue on fingers, toes and the face can be saved with oxygen treatment to help get the blood flowing again.
Watch: Interview with Detroit doctor on frostbite
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