150 mm of precipitation fell in central parts of Honshu in snow to mixed precipitation in the coast, but heavy snowfall in central regions of Japan.
Even worse was situation in more northern parts of Honshu, between Tokyo and Niigata, where expressway, which connects both cities was buried – together with cars, trucks and people – under 2 meters high snowdrifts in some parts.
Extreme snowfall is reported from northern Honshu and Hokkaido, too.
Media last 48 hours have flooded a news from mentioned highway, where around 1000 people was stucked overnight in Japan traffic jam stretching 9 miles long.
People must alive in snow and ice long 40 hours without water and food and slept in their cars according to many sources.
In Fujisan (3772 MASL), temepratures dropped to -27,8°C on Thursday and many lower regions hit severe frosts up to -15°C and all-day frosts.
Now, Japan expect even more severe frosts – from Saturday to Sunday, 19.-20. December 2020, temperature in 850 hPa over eastern Hokkaido will drop up to -20°C, with possible extreme frosts below -20/-25°C, rarely maybe below -30°C!
Northern Honshu expect -15/-18°C in 850 hPa at the night from Saturday to Sunday and frosts in the coldest valleys around -25°C.
Writer about weather since 2007. The goal of this project is to inform a wide audience about extremes of weather, atmospheric circulation, and climate change around the world. If you like our work, you can support us on Patreon or donate.