Polar vortex brings in a ‘wintry wallop’ this week, with snow, winds and heavy rain admin 5 days ago Television Genre Comments Off on Polar vortex brings in a ‘wintry wallop’ this week, with snow, winds and heavy rain 0 Views It’’ll be like a return to the cold of July, Niwa says as a cold front moves up from the far south. Share Facebook Twitter Stumbleupon LinkedIn Pinterest