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Cover: A three-channel image taken on 1 September 1985 from the Geostationary Operational Environmental Satellite, showing Hurricane Elena off the Florida Panhandle. Colors indicate moisture gradations in the atmosphere as well as the height of clouds, a technique developed at NASA Goddard Space Flight Center by A.F. Hasler and Hal Pierce. White shows the central hurricane, tropical cloud clusters, and thunderstorm tops. Subtropical highs and the region just north of the hurricane appear pink. (Photo courtesy of NASA Goddard Space Flight Center.) This document was sponsored jointly by the American Meteorological Society and the University Corporation for Atmospheric Research and produced under the auspices of the National Center for Atmospheric Research. Copy editor: Marie Boyko. Cover design: Wil Garcia. Design: Michael Shibao. Photo research: Nita Razo. Production Coordinator: Lucy Warner. Photography: NCAR Photographics and other sources as noted. The American Meteorological Society is a nonprofit scientific society of 10,000 members and the University Corporation for Atmospheric Research a consortium of 57 universities.