DES MOINES, Iowa (AP) – Authorities say snow totals ranging from 2 to 6 inches have been reported in central Iowa. A National Weather Service winter weather advisory says up to 7 inches is expected in some areas before the storms leave the area by midmorning Wednesday. Service meteorologist Darren Snively says that roads will be slick, so people will have to remember how to drive safely in winter conditions. No weather-related road closures have been reported, although several highways in the north-south middle third of the state were covered with snow or a slushy mixture, and some power outages were reported.