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Calculating Peak Q's

Calculating Peak Q's

Calculating Peak Q's

(OP)
I am performing a HEC-RAS analysis where I am using flows for the 10, 50, & 100 year events from an old FEMA study. I also need the 2 & 25 year Q's though. Does anyone know of a way to estimate them from the known Q's? Besides using a standard method (ie SCS, Regional) to recalculate them.  
 

RE: Calculating Peak Q's

You can plot the known frequencies/ flows on a probability graph.  From the graph, the 2 & 25 year flows can be interpolated.

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