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WATCH: Wave-like Kelvin-Helmholtz Clouds Forming Over High Peaks

Photographer Carl Heilman II was was conducting a workshop near Cascade Mountain when these unusual wave-like clouds began to form. According to Chris Walcek, a senior scientist with the Atmo­spheric Sciences Research Center at the State University of New York at Albany, Kelvin-Helmholtz waves result from an instability at the interface between two air masses: in this case, the colder, denser air of the lower-level clouds is moving more slowly than the warmer, drier air above. To see more of Heilman’s cloudscapes, see the March/April issue of Adirondack Life.

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