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Lightning Animations (492 videos)


--May is the last month of meteorological spring in the Northern Hemisphere, and of autumn in the Southern Hemisphere. --By tracking the latest hours in white, the overhead sun can be seen moving east to west on a daily basis. --Thunderstorms travel west to east over the middle and higher latitudes in both hemispheres, and are stationary or move more slowly from varying directions in the tropics. ~Ron Holle

Jun 2, 2017 Webmaster Archive

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Northern Hemisphere --Alaska, Canada, China, Europe, and Russia have a slow increase in lightning during the month. -- United States lightning is in well-organized lines and clusters that usually start on the Plains and move eastward for several days. --Thunderstorms move to the east-southeast on many April days along the southern boundary of the Himalayas. Clusters of lightning often form to the south of the mountains and race to the southeast several times during May. --India lightning is scattered through the country through May. ~Ron Holle

Jun 6, 2017 12:29:01 AM Dave Fincher

Tropics --The east-west aligned equatorial trough, the Intertropical Convergence Zone, is intermittently apparent over the eastern North Pacific, Indian Ocean, and western Atlantic. --Lightning over Africa is frequent near the Equator and moves from the east but has minimal organization for more than a few hours. --Daily thunderstorms over Brazil move from the east, but individual storms do not travel far. --The major islands and land areas of tropical Southeast Asia have thunderstorms nearly every afternoon in sea breezes and along mountain slopes. Motion is usually slow. --Central America and Mexico lightning increases from south to north through the month. ~Ron Holle

Jun 6, 2017 12:29:23 AM Dave Fincher

Southern Hemisphere --Organized thunderstorms move steadily from west to east across the southern oceans. --The Andes south of the equator provide a sharp western boundary in a NNW-SSE line and no lightning occurs over the cold water offshore of the Andes. ~Ron Holle

Jun 6, 2017 12:29:44 AM Dave Fincher

--01 to 03 May: First of several large thunderstorm complexes extending from the Gulf of Mexico to the Great Lakes form and moves to the Atlantic coast and southward into the Gulf. --07 to 09 and 11 to 12 May: Lines of frontal thunderstorms oriented southwest to northeast move off the southeast coast of China. --17 to 22 May: Long intense west to east line of lightning extends from Texas to the U.S. east coast, then is followed by several similar systems. --27 to 29 May: Frequent lightning over most of Turkey. --29 to 31 May: A large circulation is apparent from Tropical Cyclone Mora as it comes onshore in Myanmar ~Ron Holle

Jun 6, 2017 12:30:03 AM Dave Fincher