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Lightning Animations (492 videos)


--January is mid-summer in the Southern Hemisphere. --Most lightning is during the day. --The Andes provide a sharp western boundary in a generally NNW-SSE line. --No lightning occurs over the cold water offshore of the Andes. --Over interior regions of the Amazon basin, thunderstorms have slow movement, generally toward the SW. --At higher latitudes, storms generally move from WSW to ENE at higher speeds than over the Amazon. --The equatorial trough is quite weak over the Atlantic during January, and appears sporadically to the SW of Africa. --The eastern cape of Brazil has very little lightning. ~ Ron Holle

Feb 3, 2014 Webmaster Archive

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--01 to 04 January: Strong organized thunderstorm systems move S to N from Argentina. --07 to 09 January, and other times: Well-organized areas of thunderstorms move E from Argentina and Uruguay. This common feature occurs E of large land masses in the middle latitudes, in a similar manner to those observed in North America and Japan, although they tend to occur more often in colder months. --11 to 12, 24 to 26 January: Lightning clears from S to N over Argentina and Uruguay as a cold front advects dry sinking air from poleward regions. ~ Ron Holle

Feb 3, 2014 11:13:25 PM Dave Fincher