The National Weather Service is warning Thanksgiving travelers that the major winter storm system which has been leaving heavy snow in the western U-S is messing things up in Wisconsin.  Meteorologists are warning of “very hazardous” driving conditions.  The heaviest snowfall will be seen this morning, with the storm moving out at about 9:00 A-M, though winter storm warnings will remain in effect through the afternoon.  Northwestern and west-central Wisconsin are expecting six-to-12 inches of snow with gusty winds.  Areas along the south shore of Lake Superior could get more than a foot and it could be mostly rain in southeastern Wisconsin.