[GRASS-user] r.sim.water with time limited rainfall

Is there a way to create a surface flow model (with r.sim.water) where the rainfall stops after a specified time, and the model continues to run, and creates depth and discharge rasters after the actual rainfall has stopped?

i.e. in the case a short thunderstorm, I want to try to predict the extent of a flash flood that rises, then subsides some time after the rain has ended.

Thanks,

Micha

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Micha Silver
http://www.surfaces.co.il/
Arava Development Co. +972-52-3665918