SoAmer_24hr_Apr_2018
--April is the middle month of meteorological autumn in the Southern Hemisphere. --Most lightning near the equator is over land and during the day as shown by pulsing of white colors. --The equatorial trough, also called the Intertropical Convergence Zone, is in a northeast-southwest alignment over the Atlantic Ocean, and often well defined in an east-west swath over the Eastern Pacific. --Over Brazil, daily thunderstorms over much of the country move from the east, while they are from the north-northeast closer to the Pacific. Individual storms do not travel far or survive into the next day. --The Andes provide a sharp western boundary in a NNW-SSE line and no lightning occurs over the cold water offshore of the Andes. --The South Atlantic and South Pacific Oceans away from the continent are usually lightning-free. ~Ron Holle
May 8, 2018 Webmaster Archive
--09 to 11 April: Thunderstorms form over Argentina and move far offshore over the South Atlantic. --14 to 17 April: A cold front clears thunderstorms over land areas over Argentina from south to north. --19 to 21 April: Scattered thunderstorms over and west of the southern tip of South America. ~Ron Holle
May 14, 2018 7:53:45 PM Dave Fincher