z1os, ultra detailed. An empty traditional Japanese outdoor onsen faces a colossal avalanche descending through a steep mountain valley, viewed from a low diagonal angle beside the stone bath. The advancing wall of snow tears across the slope in several layers of destruction: nearby snow-covered pines remain rooted but bend under the first violent blast, trees in the middle distance begin to topple, and uprooted pines and broken trunks tumble within the avalanche farther up the mountain. Hot spring water erupts in high curved arcs as chunks of snow crash into the turbulent cyan pool, steam is driven sideways, and wood and roof debris whirl around a damaged timber shelter. A warm amber lantern glows over wet black stone beneath cold blue-gray winter light, ultra-realistic cinematic disaster scene, dramatic volumetric atmosphere, immense scale, imminent danger.