The synoptic structure of Hurricane Hazel, 1954, over the eastern United States, is examined from the view point of Namekawa-Aoki's theory and of Namekawa-Sekioka's hypothesis. The result shows that Hazel has the same structure as that of typhoon hitting the Japanese Islands, i.e., Hazel is also composed of main and secondary typhoons, and she makes later herself a complex system with an extratropical cyclone formed on the preexisting front.