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Lightning Animations (492 videos)


General --July is the middle month of meteorological summer in the Northern Hemisphere, and of winter in the Southern Hemisphere. --By tracking the latest hours in white, the overhead sun can be seen moving E to W on a daily basis. --Thunderstorms travel W to E over the middle and higher latitudes in both hemispheres, and more slowly from varying directions in the tropics. Northern Hemisphere --Alaska, Canada, China, Europe, Russia, and neighboring middle-latitude countries tend to have large thunderstorm systems moving from the W. --Lightning occurs almost every day along the base and over the Himalayas, often moving from the WNW to ESE. --Lightning activity over the U.S. is often in large organized systems that begin in the northern Rocky Mountains and move to the E. --Mexican lightning is frequent in the monsoon region of its northwest. --The Mediterranean has minimal thunderstorm activity in July. ~Ron Holle

Aug 2, 2019 Webmaster Archive

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Tropics --The equatorial trough is active over the eastern North Pacific, intermittent over the Atlantic, and not identifiable over the Western Pacific and Indian Oceans. --The major islands and land areas of tropical Southeast Asia have daily thunderstorms in sea breezes and along mountain slopes; they move from varying directions through the month. --July lightning over Africa is primarily between the equator and 20 N. Every few days, a north-south line or cluster of storms becomes organized over East and Central Africa and moves W or SW. --Central America, Cuba, and Florida have active daily thunderstorms during July. --Over tropical Brazil, thunderstorms form daily, then move E to W. Individual storms do not travel far or survive into the next day. --Lightning over Cambodia, Myanmar, the Philippines, Thailand, Vietnam is frequent. ~Ron Holle

Aug 6, 2019 7:18:10 PM Dave Fincher

Southern Hemisphere --The Andes define a sharp western boundary in a NNW-SSE line and minimal lightning occurs over the cold water offshore of the Andes. --Lightning over South America is primarily in northern Brazil moving from E to W, and in storms that form in Argentina and move from W to E --Over Australia and southern Africa, lightning is scarce and mostly offshore to the SE. --Complexes move W to E to the south of South Africa through the month. ~Ron Holle

Aug 6, 2019 7:18:23 PM Dave Fincher

--01 to 10 July: Daily thunderstorms over the mountains of Morocco and Algeria. --02 to 03 July: First of several areas of thunderstorms moves W to E in the southern oceans to the south of South Africa. --01 to 03 July: Broad cyclonic circulation over northern Indian Ocean. --02 to 06 July: Bands of lightning move E to W over central Russia and Kazakhstan. --13 to 16 July: Thunderstorms move S to N over western Russia. --21 to 24 July: Lightning west of New Siberian Islands at 75 N. --13 to 16 July: Thunderstorms move S to N over western Russia. --24 to 27 July: Storms move across all of United Kingdom. --09 to 15 July: Hurricane Barry slowly moves N onto Louisiana coast. --23 to 25 July: Long line of thunderstorms along cold front from New England to Texas, moving S into Gulf of Mexico. ~Ron Holle

Aug 6, 2019 7:18:41 PM Dave Fincher