World_24hr_June2019
General --June is the first 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, and Russia have large thunderstorm systems moving from the W. --Many of the thunderstorms over western and southern Europe move from a southerly component, while those to the north travel from W to E. --Lightning is widespread over the Indian subcontinent, and occurs almost every day along the base and over the Himalayas, usually moving from the WNW to ESE. --Lightning activity over the U.S. is often in large organized systems that develop in the Southern Plains. These systems can produce more lightning than anywhere else in the world. ~Ron Holle
Jul 9, 2019 Webmaster Archive
Tropics --The equatorial trough over the Atlantic is intermittent, active over the eastern North Pacific, and diffuse 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. --June lightning over the African continent is primarily between 20 N and 5 S. Every few days, a north-south line or cluster of storms becomes organized over East and Central Africa and moves steadily W or SW. --Over tropical Brazil, thunderstorms form daily, then move E to W. Individual storms do not travel far or survive into the next day. --Lightning is frequent over the Philippines, Thailand, Myanmar, Vietnam, and Cambodia. ~Ron Holle
Jul 10, 2019 11:41:47 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 two regions; northern Brazil in the tropics 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 through SW. ~Ron Holle
Jul 10, 2019 11:42:02 PM Dave Fincher
02 to 06 June: First of several areas of thunderstorms moves W to E in the southern oceans to the south of South Africa. --03 to 08 June: Large cyclonic circulation over Eastern Europe centered on Hungary. --04 to 08 June: Series of storm forms over northern France and moves to the NNE or N. --07 to 09 June: Scandinavia has widespread lightning. --08 to 20 June: Prolonged period of lightning activity over Turkey. --09 to 10 June: Intense lightning cluster moves N to S across Oklahoma and Texas. --19 to 20 June: Cyclonic circulation in Northwest Territories of Canada. --20 to 23 June: Broad cyclonic circulation over northern Indian Ocean. --21 to 23 June: Mesoscale connective system moves from western Nebraska to Tennessee with very frequent lightning. --23 to 26 June: Bands of lightning move E to W over northeast part of Russia. --26 to 29 June: Long line of lightning moving from SE to NW offshore of Ireland. ~Ron Holle
Jul 10, 2019 11:42:29 PM Dave Fincher