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A thunderstorm, also known as an electrical storm or a lightning storm, is a storm characterized by the presence of lightning [1] and its acoustic effect on the Earth's atmosphere, known as thunder. [2] Relatively weak thunderstorms are sometimes called thundershowers. [3] Thunderstorms occur in a type of cloud known as a cumulonimbus. [4]
Dry thunderstorms occur essentially in dry conditions, and their lightning is a major cause of wildfires. [3] [4] [5] Because of that, the United States National Weather Service, and other agencies around the world, issue forecasts for its likelihood over large areas. [4] [6]
This process cause thunderstorm formation (and decay) to last for several hours or even over multiple days. Cumulonimbus clouds can also occur as dangerous winter storms called "thundersnow" which are associated with particularly intense snowfall rates and with blizzard conditions when accompanied by strong winds that further reduce visibility.
Hail is a chunk of ice that can fall during thunderstorms. Unlike snow, sleet, freezing rain, and graupel, which occur in colder weather, hail is most common in warm conditions, during spring and ...
Inversion thunder results when lightning strikes occur between the cloud and ground during a temperature inversion. The resulting thunder sounds have significantly greater acoustic energy than those produced from the same distance in non-inversion conditions. In a temperature inversion, the air near the ground is cooler than the air higher up.
As has been the case throughout the month of July, and most recently in the suburbs of Philadelphia where at least 6 were killed during a flash flooding event, rainfall of 1-2 inches per hour can ...
An air-mass thunderstorm, also called an "ordinary", [1] "single cell", "isolated" or "garden variety" thunderstorm, [2] is a thunderstorm that is generally weak and usually not severe. These storms form in environments where at least some amount of Convective Available Potential Energy (CAPE) is present, but with very low levels of wind shear ...
These are especially dangerous storms, since the mesocyclone is wrapped with rain and can hide a tornado (if present) from view. These storms also cause flooding due to heavy rain, damaging downbursts, and weak tornadoes, although they are also known to produce strong to violent tornadoes. They have a lower potential for damaging hail than ...