-40 Wind Chill Possible Thursday Night, Friday Morning

The National Weather Service has issued a wind chill advisory for the Twin Cities area, warning that temperatures could reach dangerous levels from midnight Thursday through noon Friday.

The combination of wind and cold could result in wind chills of more than 30 below zero, and as much as 40 below zero in isolated areas, during the early morning hours Friday. At such temperatures, extreme caution is warranted to avoid frostbite and hypothermia.

At 40 below zero, going outdoors for more than 30 minutes without gloves or a face mask could result in frostbite. Motorists are urged to pack along extra clothing and a blanket in case of problems. Pets can also suffer from the cold, even on short walks.

If wind chills dip as low as expected, the city of Roseville's outdoor city skating rinks will be closed.

"Parks and Recreation’s policy is to close rinks when temperatures dip below -25 degrees or windchills below -15 degrees.," Carolyn Curti, a Roseville city communications specialist, told Roseville Patch.

Meanwhile, Curti said, "We’ll take the usual precautions to protect (municipal) workers, while meeting the needs of the city. Employees receive first aid/safety training which includes working in extreme cold and recognizing hypothermia. Workers wear adequate clothing to protect themselves when outdoors."

At Roseville School District 623, officials won't have to worry about K-8 students being out in the cold on Friday morning either walking to school or waiting for buses. "Fortunately, Friday is a non-school day,'' said Kathy Englund, a school district spokeswoman, noting that Feb. 1 is a Staff Development day for teachers.  However, there is school Friday for the high school, grades 9-12. 
 
And some forecasted good news: Temperatures should recover into the 20s by Saturday.

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 How to dress during severely cold weather:

• Wear layers of loose-fitting, lightweight, warm clothing. Trapped air between the layers will insulate you. Outer garments should be tightly woven, water repellent, and hooded.

• Wear a hat, because 40 percent of your body heat can be lost from your head.

• Cover your mouth to protect your lungs from extreme cold.

• Mittens, snug at the wrist, are better than gloves.

• Try to stay dry and out of the wind.