The composite-map technique has been employed to construct some pictures of the average horizontal temperature distribution in the lower stratosphere over cyclones which do and cyclones which do not produce secondary Lows along the east coast of the United States. This study in comparative analysis verified that a characteristic anomaly exists in the 200-mb temperature field twelve hours prior to the development of the type of east-coastal secondary cyclones studied.

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Footnotes

1 Based on an article originally published in “Notes on cyclone development in the United States,” Technical Paper No. 2, Project SCUD, Contract No. NONR-285 (09), New York University. This article was an abridgment of a M.S. thesis submitted to the Department of Meteorology and Oceanography at New York University.

2 Now at Woods Hole Oceanographic Institution, Woods Hole, Massachusetts.