A winter weather advisory takes effect at noon on Thursday and will remain in effect until 6 PM Friday.  Andrew Kalin with the National Weather Service in Sioux Falls says we can expect snow to begin Thursday afternoon and continue into Friday.  1-2 inches are expected.  Winds will increase on Friday, which could cause some visibility issues for those who are traveling.  Wind chills will drop from -20 degrees on Friday to -45 throughout the weekend and into Monday.