| Violent weather at the ground is usually produced by organized multiple-cell storms, squall lines, or a supercell. |
| As mentioned earlier, a type of thunderstorm called a supercell creates the strongest tornadoes. |
| Two rotating wall clouds revealed twin low-level mesocyclones on the SW side of a classic, cyclic supercell. |
| Spectacular, explosive supercell thunderstorms and vivid night-time lightning shows. |
| In addition to collecting data on the Wyoming tornado, the scientists investigated several supercell thunderstorms that did not spawn tornadoes. |
| Document the evolution of supercell thunderstorms near Elnora, Alberta. |
