Word: altocumulus
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Dates: during 1935-1935
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Altostratus, altocumulus, and secondary altocumulus clouds have also been found to indicate approaching storms, but only by a margin of from a few minutes to two hours. The altostratus cloud is a dense mass of falling snow, and by computing its height and rate of fall, the approximate time of its arrival at the ground can be told...
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