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Lightning Animations (492 videos)

CA-SA_24HR_May2014

--May is late autumn in the Southern Hemisphere, and late spring in the Northern Hemisphere. --Much of the lightning over land is during the day. --The Andes provide a sharp western boundary in a generally NNW-SSE line. --There is a general reduction in lightning activity from south to north during the course of the month as cooler and drier air arrives from the south. --Over equatorial regions, including the Amazon basin, thunderstorms move from the E or ENE. --Over the Northern Hemisphere, large organized squall lines and other thunderstorm complexes generally move from WSW to ENE at higher speeds than over the Amazon. --The equatorial trough, also called the Intertropical Convergence Zone, is intermittently identifiable in the Atlantic, mostly late in the month. --The eastern Pacific equatorial trough is diffuse but accounts for a significant amount of lightning over the ocean west of Central America during most of the month. ~Ron Holle

Jun 2, 2014 Webmaster Archive

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--10 to 13 May: A large disturbed area of convection is located over the NE Caribbean. --13 to 15 May: A major lightning-producing system plunges south from Texas into Central America and the NE Pacific. --21 May: Rare lightning activity is located over the Pacific Ocean off the west coast of Chile. --21 to 24 May: A large organized area of lightning crosses at a high latitude of the South Atlantic. --21 to 30 May: A series of waves in the easterlies leave West Africa and extend part way across the Atlantic toward South America. ~Ron Holle

Jun 3, 2014 9:10:09 PM Dave Fincher