Thunderstorm Below the Mountain, 1821 by Katsushika Hokusai
This print is generally considered to be one of the three greatest in the whole series, along with Red Fuji and The Great Wave Off Kanagawa.
It is not known from where Hokusai was viewing Mt. Fuji, but the mountain looms majestically, almost threateningly, in a way the emphasizes its imperturbable strength in the face of all kinds of weather.
The work show quite clearly Hokusai's basic interest, as an artist in the question of how the appearance of his subject varied not only with the angle but with the season, the time of day, and differing climatic conditions.