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Multiple Waterspouts at Lake Tahoe

Richard GrotjahnDepartment of Land, Air, and Water Resources, University of California, Davis, Davis, California

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At least six waterspouts occurred at a large alpine lake in the western United States over several hours during 26 September 1998. Photographs showing the conditions as well as representative examples of this extremely rare event are presented. Some mechanisms are discussed that may explain the persistence of the convection and the low-level vorticity that gave rise to the waterspouts.

Corresponding author address: Dr. Richard Grotjahn, Dept. of Land, Air, and Water Resources, 1 Shields Ave., University of California, Davis, Davis, CA 95616-8627. E-mail: grotjahn@ucdavis.edu

At least six waterspouts occurred at a large alpine lake in the western United States over several hours during 26 September 1998. Photographs showing the conditions as well as representative examples of this extremely rare event are presented. Some mechanisms are discussed that may explain the persistence of the convection and the low-level vorticity that gave rise to the waterspouts.

Corresponding author address: Dr. Richard Grotjahn, Dept. of Land, Air, and Water Resources, 1 Shields Ave., University of California, Davis, Davis, CA 95616-8627. E-mail: grotjahn@ucdavis.edu
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