Catch the Wave

This special cloud, in conjunction with Mount Shasta, is discussed in the article "Billow Talk" in the November-December 1999 issue of Weatherwise; the Fall 1998 Siskiyou County Scene; and an article entitled "That mysterious cloud" in the Winter 1998/1999 Siskiyou County Scene. A more detailed explanation of wind flow around Mount Shasta is described in "Airborne Doppler Lidar Wind Field Measurements of Waves in the Lee of Mount Shasta" in the May 1988 issue of the Journal of the Atmospheric Sciences. The Kelvin-Helmholtz wave cloud does not last very long because the upper layer of air is usually drier than the lower layer, which results in evaporation of the cloud. Beverly really did "Catch the Wave" when she photographed this spectacular formation over Mount Shasta.