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Lightning Animations (492 videos)

World_6HR_April2014

--April is spring in the Northern Hemisphere, and autumn in the Southern Hemisphere. --Note that by tracking the latest hours in white, the overhead sun can be seen to move E to W on a daily basis. --Over the middle and higher latitudes in both hemispheres, systems are traveling west to east. --In the topics, thunderstorms typically move from east to west. --The equatorial trough, also called the Intertropical Convergence Zone, appears intermittently in the Atlantic, east Pacific, and Indian Oceans. --Well-organized areas of thunderstorms move E from the E coasts of large land masses in the middle latitudes of South America, South Africa, and Australia. --In South America, the Andes provide a sharp western boundary in a generally NNW-SSE line. No lightning occurs over the cold water offshore of the Andes. --Early and late in the month, a very sharp WNW-ESE line of lightning forms in the afternoon at the base of the Himalayas over Nepal and northern India. ~Ron Holle

May 2, 2014 Webmaster Archive

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--01 to 02 April: The first of many well-organized storms move from Nigeria to the WSW over the Atlantic Ocean. --01 to 03 and 05 to 07 April: Strong thunderstorm complexes form over southern China and move ESE. --02 to 10 April: A continuous track of lightning can be followed from Spain on 01 April to Italy on the 6th to Iran on the 10th. --05 to 10, 14 to16; 18 to 20; 26 to 30 April: Prolific lightning-producing storms over the SE and Central United States move eastward. --13 to 15, 26 to 28 April: Large storm complexes move SW to NE across Saudi Arabia. --19 to 21 April: Almost all April Sahara strokes are over Chad and Egypt on these days. --22 to 24 April: A strong complex moves E to W off India; thunderstorm activity then remains over the Indian Ocean for the rest of the month. --28 to 29 April: A cyclonic circulation is present over the open portions of the S Atlantic Ocean. ~Ron Holle

May 5, 2014 9:12:27 PM Dave Fincher