Mt.Tokachidake (Mt.Tokachi) 81
Temperature: minus 11 degrees Celsius at the Tokachidake Hot Springs (Tokachidake Onsen) and minus 15 degrees Celsius in the KTV (katabatic valley).
It seems to be a radiative cooling but there was no inversion layer this day. The snow on the road was well compacted. The Furano Basin was covered with field of clouds. The field of clouds was ascending. The road was covered with well compacted snow. He repeated the interval training many times at the summit. At the end of the training, the field of clouds has risen up to 1100m of altitude and it was dissipating.
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