Winter lightning along the East Coast
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More than 150,000 cloud‐to‐earth lightning flashes were recorded along the East Coast during the period 15 January–15 March 1986 in the region bounded by 25°N–40°N and 90°W–70°W. The majority of the flashes for the two month period occurred over the Atlantic Ocean in the vicinity of the Gulf Stream where a peak flash density of 0.7 flashes/km2 was observed approximately 270 km from the Carolina Coast. This relatively sharp peak in the spatial distribution of lightning flashes to earth over the Gulf Stream occurs with a width at half‐maximum of approximately 130 km. In the February 1986 data, a close correlation is observed of the maximum lightning flash density contours with the maximum sea surface temperature contours. Copyright 1990 by the American Geophysical Union.
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