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.
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Paperback. Condition: New. Print on Demand. This book delves into the intriguing history of tornado observations and data collection in the United States, spanning from the early anecdotal accounts to the more systematic approaches of the 20th century. The author meticulously examines the evolving definitions and classifications of tornadoes, highlighting the challenges in distinguishing them from other severe windstorms. The narrative traces the development of tornado observation methods, from eyewitness descriptions and damage surveys to the implementation of advanced technologies like radar and aircraft reconnaissance. The book sheds light on the crucial role played by the U.S. Weather Bureau and its collaborative efforts with various organizations in gathering and analyzing tornado data. A significant portion of the book explores the complexities and limitations of tornado statistics, emphasizing the inherent challenges in achieving complete and accurate data due to factors such as underreporting, misclassification, and the subjective nature of damage assessments. The author delves into the evolving methods of data collection, including the use of questionnaires and press clipping services, and underscores the importance of rigorous investigation and verification. By offering a comprehensive historical overview and insightful analysis of tornado observation practices, this book provides valuable context for understanding the ongoing efforts to study and predict these powerful and often devastating weather phenomena. This book is a reproduction of an important historical work, digitally reconstructed using state-of-the-art technology to preserve the original format. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in the book. print-on-demand item. Seller Inventory # 9780364730607_0
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