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Lightning Animations (492 videos)


--January is the middle month of meteorological summer in the Southern Hemisphere. --The Andes provide a sharp western boundary in a generally NNW-SSE line and no lightning occurs over the cold water offshore of the Andes. --The equatorial trough, also called the Intertropical Convergence Zone, is intermittently active over the Atlantic during much of the month, and occasionally noted over the Eastern Pacific. --At higher latitudes to the south, storms generally move from WSW to ENE. --Almost no lightning occurs over the SE Pacific and South Atlantic except storms that move offshore from South America. --Over interior regions of the Amazon basin, thunderstorms move from the E near the equator, and from the NE farther south. --In the southern portion of the continent, frequent clearing of lightning is apparent from south to north as cold fronts and attendant dry sinking air arrive to minimize lightning. --Almost no lightning occurs over the eastern tip of Brazil ~Ron Holle

Feb 2, 2015 Webmaster Archive

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--22 to 24 January: The farthest south storms of the month over South American land initiate over the Andes border between Argentina and Chile, then move E. --27 to 29 January: Lines of lightning form on the eastern Argentina coast and move over the south Atlantic. ~Ron Holle

Feb 4, 2015 5:49:59 PM Dave Fincher