TS Phenomena MET
The descriptions of these features associated with thunderstorms are relatively straightforward.
| Phenomena | Description |
|---|---|
| Tornado | A violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud |
| Gust front | The leading edge of cold air which has descended from a cumulonimbus cloud and is moving horizontally near to the surface into warmer air |
| Squall | An atmospheric phenomenon characterized by an abrupt and large increase in wind speed with a duration of minutes which diminish rather suddenly. It is often accompanied by showers or thunderstorms |
| St Elmo's fire | A static discharge in the air |
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What phenomenon is described by the following: "A violently rotating column of air, in contact with the ground, either pendant from a cumuliform cloud or underneath a cumuliform cloud"?
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