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Livemag is The “pots girl” on what it feels like to be a meme

“I made the things that it cannot make the pots to be done,” is one of the funniest things to be said on South African TV. Siyabonga Alone

  • Single-cell Thunderstorms: Thunderstorms created by just one convection cell in the atmosphere are called single-cell storms. Most of these are small, lasting only about an hour, and are also called ordinary thunderstorms. These storms often form during summer and include towering cumulonimbus clouds that can grow 12 kilometers high in the atmosphere. Rain and lightning are common. Sometimes hail falls.
  • Multi-cell Thunderstorms: Some thunderstorms are made from many convection cells moving as a single unit. These are called multi-cell thunderstorms. Often the convection cells are arranged as a cluster, with each cell at a different stage of the thunderstorm cycle. Multi-cell storms along a cold or warm front, where warm air is pushed high into the atmosphere above cold air, often form a line, called a squall line. The squall line can be up to 600 miles (1000 km) long. Strong wind gusts often blow just ahead of the storm.
  • Supercell Thunderstorms: Thunderstorms with deep, rotating updraft winds, called supercells, are very large and last for hours releasing huge amounts of rain and sometimes even baseball-sized hail. They include fast moving convection – air zooming upward at as much as 175 miles (280 km) per hour. Rotation in supercells sometimes forms violent tornadoes, the largest and most damaging type, because the storms are so long-lived. Several tornadoes can be produced from one supercell thunderstorm. And clouds grow up to 18 km in the atmosphere. Supercells are the least common type of thunderstorm.

Where Air Rises to Form a Thunderstorm

All thunderstorms begin with air rising into the atmosphere to form a convection cell, but the air can be lifted in different ways. Another way to classify thunderstorms is by the location where they form and the reason that air rises. The pictures below describe three different ways that lifting of air can begin: due to a mountain or hillside, within an air mass, or at a storm front.


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