SEPTEMBEB 1951 MONTHLY REVIEW WEATHER 179 THE WEATHER AND CIRCULATION OF SEPTEMBER 1951l
The 700-mb. circulation pattern for the month of September (fig. 1) shows that North American weather was dominated by a ridge extending southward from the Yukon along and off the Pacific Coast to about 45 ' N. and an accompanying trough to its east reaching from Kansas to Baffin Island. Off ei...
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.394.8455 http://docs.lib.noaa.gov/rescue/mwr/079/mwr-079-09-0179.pdf |
| Summary: | The 700-mb. circulation pattern for the month of September (fig. 1) shows that North American weather was dominated by a ridge extending southward from the Yukon along and off the Pacific Coast to about 45 ' N. and an accompanying trough to its east reaching from Kansas to Baffin Island. Off either coast of the southern United States was a weak secondary trough. These two troughs were separated by a High centered in the northern Bahamas with a stronger than normal ridge line extending west-northwestward through the northern Gulf of Mexico, central Texas, and southern New Mexico and Arizona. Thus, troughs and ridges at high latitudes 1 See Charts I-XV following p. 187 for analyzed climatological data for the month. were out of phase with those at lower latitudes. As a result, the confluence of contrasting air masses 111 was a |
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