This Just In

Our friend Alan is a big time reporter for USAToday. When I am bored at work, I read his stories and try to pick out any mistakes that were made--mostly grammar mistakes. In his defensiveness he showed me the recent AP story, and while I hate to be the grammar police can anyone tell me what this lead means:

Motorists slid off roads Sunday across the Great Lakes states and into New England as a storm already blamed for three deaths cut visibility and iced over highways with a wind-blown brew of snow, sleet and freezing rain

Anyone?