If you enjoy snow, as I think all of us reading this forecast do, today is the day for you. Well to be honest the next couple days should be quite snowy, making those across SW Hokkaido quite happy. However, I am concerned about the winds especially today across the higher elevations. Currently, there are advisories out for heavy snow, winds, and the possibility of avalanches. Temperatures at midnight are already well below zero (Makkari reporting -10.4) with colder temperatures in the mountains and cold air drainage regions. I expect temperatures to drop further, however the clouds and falling snow should help moderate the decrease to some extent resulting in morning lows of -15 to -8 across the lower regions while mountain tops will drop into the -22 to -13 range.
Check out this image of the snow falling at midnight! This camera is located west of Akaigawa on Japan National Route 5 260m above sea level!
(Courtesy of http://www.hbc.co.jp/)