You've heard of lake-effect snow in the Great Lakes. Check out what a larger sea and bitter cold air helped to generate in parts of Japan.

According to the Japan Meteorological Agency, 47 inches of snowfall occurred during a 12-hour period on Monday in Obihiro, with blizzard conditions likely across northeast parts of the country. The agency warned residents to be on guard for heavy snow,

The Japan Meteorological Agency extended its heavy snowfall warning to around Feb. 9, mainly on the Sea of Japan side, after snow covered several municipalities on Feb. 6.