Caution needed

Modest caution needed

Good condition

[The mountain-climbing index]
This index represents the degree of comfort that climbers are expected to experience on the mountain. It is a scale of 1 (lowest) to 3 (highest), estimated based on meteorological knowledge and information, including the climate conditions at the top and foot of the mountain.

[How the mountain-climbing index is produced]
Precipitation, wind velocity, cloud amount, etc. are comprehensively taken into consideration and translated into a scale of 1 to 3 based on expert judgment.
eg. strong wind and rain → 1 slightly strong wind and rain → 2 weak wind and little rain → 3

[Cautions of use]
*Note that this value is a calculation of numerical computation (numerical weather prediction of the Meteorological Agency) and is NOT a weather forecast. Due to specific geographical conditions (e.g. solar radiation and radiative cooling), the actual situation on the mountain may be greatly different. When you climb the mountain, be aware of this and use full caution.