History Of Tornado Observations And Data Sources

Excerpt from History of Tornado Observations and Data Sources The updraft within the funnel cloud may have a speed of 100 or 200 miles an hour. (d) The speed of the storm itself in trav elling over the earth is comparatively slow-25 to 40 miles an hour; its path is short, averaging about 300 miles. 2. Name given in West Africa to the squall which accompanies a thunder storm. The 300 miles for the average length of the tornado path obviously is a mis print. The definition is interesting in that it states that the funnel-shaped cloud which marks the vortex as the storm moves along, may or may not touch the earth The Glossary also defines a funnel cloud stating that its small end reaches down toward the earth. The definition of the waterspout recognizes two classes of these one class being similar to a tornado in function and aspect. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.