Post 24701
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The greatest storms, however, are usually followed by a deep, peculiar silence, especially profound and solemn in the forests; and the noble trees stand hushed and motionless, as if under a spell, until the morning sunbeams begin to sift through their laden spires. Then the snow, shifting and falling from the top branches, strikes the lower ones in succession, and dislodges bossy masses all the way down. Thus each tree is enveloped in a hollow conical avalanche of fairy fineness, silvery white, irised on the outside; while the relieved branches spring up and wave with startling effect in the general stillness, as if moving of their own volition. These beautiful tree avalanches, hundreds of which may be seen falling at once on fine mornings after storms, pile their snow in raised rings around corresponding hollows beneath the trees, making the forest mantle somewhat irregular, but without greatly influencing its duration and the flow of the streams.
The large storm avalanches are most abundant on the Summit peaks of the range. They descend the broad, steep slopes, as well as narrow gorges and couloirs, with grand roaring and booming, and glide in graceful curves out on the glaciers they so bountifully feed.
Down in the main cañons of the middle region broad masses are launched over the brows of cliffs three or four thousand feet high, which, worn to dust by friction in falling so far through the air, oftentimes hang for a minute or two in front of the tremendous precipices like gauzy half-transparent veils, gloriously beautiful when the sun is shining through them. Most of the cañon avalanches, however, flow in regular channels, like the cascades of tributary streams. When the snow first gives way on the upper slopes of their basins a dull muffled rush and rumble is heard, which, increasing with heavy deliberation, seems to draw rapidly nearer with appalling intensity of tone. Presently the wild floods comes in sight, bounding out over bosses and sheer places, leaping from bench to bench, spreading and narrowing and throwing off clouds of whirling diamond dust like a majestic foamy cataract. Compared with cascades and falls, avalanches are short-lived, and the sharp clashing sounds so common in dashing water are usually wanting; but in their deep thunder tones and pearly purple-tinged whiteness, and in dress, gait, gestures, and general behavior, they are much alike.