Stunning visuals recorded in Boston Harbor show sea smoke forming on the waters on February 4, as Massachusetts braced itself while a record breaking cold wave swept the country.This video was recorded by Jackson Myers, who told Storyful that the air temperature was around -25C when he captured the chilling view.In the footage, the smoke can be seen floating past the Boston skyline.Sea smoke, also known as arctic sea smoke or sea fog, is a weather phenomenon occurring when the air mass becomes extremely cold, causing the water to steam.The National Weather Service reported that the area was now past the peak of the cold, and that temperatures would gradually rise. Credit: Jackson Myers via Storyful