196 MONTHLY WEATHER REVIEW OCTOBEU 1951 THE WEATHER AND CIRCULATION OF OCTOBER 1951'

• Main Author: H. F. Hawkins
• Other Authors: The Pennsylvania State University CiteSeerX Archives
• Format: Text
• Language: English
• Subjects: Pacific; Yukon; Alaska
• Online Access: http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.394.7015; http://docs.lib.noaa.gov/rescue/mwr/079/mwr-079-10-0196.pdf

The 700-mb. circulation pattern for the month of October (fig. 1) shows a fairly flat westerly flow dominating the weather of the United States. There were four weak troughs in the country or nearby: 1. off the Atlantic Coast, 2. from southern Nevada south-southwestward, 3. from Colorado northeastward to Lake Superior, and 4. across the Washington-Oregon border. Height departures from normal were rather weak with a negative center over the Pacific Northwest and a stronger positive center over New England. The most conspicuous feature 1 See Charts I-XV following page 204 for analyzed climatological data for the month. affecting North America was the ridge over the Yukon Territory, tilted northwestward at higher latitudes to a positive animaly center over Alaska. The fast westerlies of the eastern Pacific and the marked diffluence over the