Arctic freeze continues to blast huge areas of US with -30C temperatures

A worker pauses while removing snow from Highmark Stadium in Orchard Park, New York (AP)

An Arctic blast will continue sweeping across the US and linger until at least midweek, prolonging a bitter cold that set record-low temperatures in parts of the country and threatens to further disrupt daily life.

The US National Weather Service said wind chills are expected to push temperatures to minus 30C from the Northern Rockies to northern Kansas and into Iowa, where people are voting in the first presidential nomination contest.