Excerpt from Frequency of Dry East Winds Over Northeast Oregon and Southwest Washington East-wind frequencies over northwest Oregon and southwest Washington vary by month, and the pattern of monthly variation differs with elevation. These frequencies have been obtained from winds aloft over Portland in the study years 1934-41 and 1948-54. Coming at the end of the usually dry summer period and follow ing the near minimum frequencies of August at all elevations, Sep tember bears the greatest impact of easterly winds as they ...
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Excerpt from Frequency of Dry East Winds Over Northeast Oregon and Southwest Washington East-wind frequencies over northwest Oregon and southwest Washington vary by month, and the pattern of monthly variation differs with elevation. These frequencies have been obtained from winds aloft over Portland in the study years 1934-41 and 1948-54. Coming at the end of the usually dry summer period and follow ing the near minimum frequencies of August at all elevations, Sep tember bears the greatest impact of easterly winds as they affect forest fire control. This is the month of greatest frequency of major east winds at 3, 500 to 6, 000 feet elevation, of greatest increase in frequency from a previous month at all elevations, and second only to April in frequency of major east winds in exposed valleys below 500 feet elevation. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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