NEW : Atlanta Braves says city will be ready for NFL game . The storm swept into the Northeast after dumping unusually heavy snow across the South . Massachusetts declares state of emergency . 1,500 households remain without electricity in Massachusetts . Delta cancels 200 flights in an attempt to reduce delays .
NEW : Atlanta Braves says city will be ready for NFL game . Massachusetts declares state of emergency . 1,500 households remain without electricity in Massachusetts . Delta cancels 200 flights in an attempt to reduce delays .