Interstate Travel / National Weather Service

  The southern two-thirds of South Dakota is under a Winter Storm Watch for Thursday and Friday. Forecasters are predicting very heavy snow totals for an area south of Interstate 90.  South Dakota Public Broadcasting's Gary Ellenbolt visits with Jeff Chapman with the National Weather Service in Sioux Falls. Chapman says the system is winding up and heading for the state.

   According to Rapid City meteorologist John Chamberlain, the western part of the state is primed for a large amount of moisture as well.

The South Dakota Department of Transportation has closed Interstate 90 from the Wyoming border to Rapid City Exit 55.  Another closure is in effect from I-90 Exit 67 near Ellsworth Air Force Base, to U-S Highway 83 near Vivian.  These closures are in both directions.  Another I-90 closure from Vivian to Chamberlain is imminent.  The western part of the state has been hammered by blizzard conditions most of the day, and a Blizzard Warning remains in effect for tonight into Monday.  Several No Travel Advisories have been posted for South Dakota as well.  Anyone finding it necessary to travel