The porch in font of the cella of a Greek or Roman temple formed by the projection of the side walls and a range of columns between the projections.
Most commonly, the lightning current ceases in about a millisecond for a given stroke, but sometimes there is a continuing current on the order of 100 amps following one or more of the strokes. This is called hot lightning and it is the cause of lightning fires according to Uman.
It takes the current about 1 microsecond to reach its peak value, which averages around 30,000 amperes. The return stroke produces more than 99% of a lightning bolt's luminosity and is what we see as lightning.