Training (meteorology)

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In meteorology, training is when a successive series of showers or thunderstorms moves repeatedly over the same area, usually causing some form of flooding, especially flash floods. Often, this happens when a line of rain or storms forms along a stationary front, and moves down the length of the front, while the front is stalled. It is named so because this is similar to the way train cars move down a track in a line, over and over the same point, without the track moving.