Users will experience what may appear as 'showery precip' as 'few' or 'scattered' nimbus rain clouds pass overhead, so it will be normal for rain to start and stop or change intensity over time. The occurrence, type and intensity of precipitation will thus change depending on the existence, type, thickness and convection properties of the simulated cloud that is overhead the aircraft.
AS16 and ASP4 include advanced precipitation and radar features which constantly monitor the cloud positions as actually depicted within the simulator.