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Quenched, Spongy Hail

Charles A. KnightNational Center for Atmospheric Research, Boulder, Colo. 80302

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Nancy C. KnightNational Center for Atmospheric Research, Boulder, Colo. 80302

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Abstract

Spongy hailstones have been collected by the quenching method, and their structures examined. The most common type of spongy hail in Colorado is small hail that formed as loose rime (graupel) and became soaked with liquid water during fall. Hail that grew spongily has also been observed, and the structures are illustrated. The interpretations are confirmed by experiment.

Abstract

Spongy hailstones have been collected by the quenching method, and their structures examined. The most common type of spongy hail in Colorado is small hail that formed as loose rime (graupel) and became soaked with liquid water during fall. Hail that grew spongily has also been observed, and the structures are illustrated. The interpretations are confirmed by experiment.

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