NEW : Were responsible for 10 deaths , authorities say . NEW : Some areas may see another foot of snow . It has left thousands of passengers stranded after flight delays . It also triggered multicar accidents and other traffic accidents across Midwest .
NEW : Weather responsible for 10 deaths , authorities say . NEW : Some areas might see another foot of snow . Storm has left thousands of passengers stranded after flight cancellations . It also triggered multicar pileups and other traffic nightmares across Midwest .