The waterfalls at Falls Park sit frozen with just a trickle of water flowing underneath, Sunday, Jan. 5, 2014, in Sioux Falls, S.D. The city and surrounding areas were under a wind chill advisory ... more 
The waterfalls at Falls Park sit frozen with just a trickle of water flowing underneath, Sunday, Jan. 5, 2014, in Sioux Falls, S.D. The city and surrounding areas were under a wind chill advisory Sunday afternoon with wind chills levels expected to dip as low as 55 degrees below zero. (AP Photo/Dirk Lammers) less 
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Associated Press | Photo By Dirk Lammers
Sun, Jan 5, 2014 5:01 PM EST