Preparing for extreme cold weather operations

摘要

On January 16 the ambient temperature in Chicago reached minus 24 F with the associated wind chill in excess of minus 40 F. On that day, the North Pole registered minus 8 F. The temperature was so extreme that no matter how anyone dressed, the average person could only stay outside for about 15 minutes. All I could think about was the scene from Ice Station Zebra where the submarine came up vertically through the ice. I was looking for the submarine to appear in Lake Michigan.