Section 312IAC10.5-2-10. "Probable maximum precipitation" or "PMP" defined  


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  •    "Probable maximum precipitation" or "PMP" means the greatest theoretical depth of precipitation for a given duration that is physically possible over a given size storm area at a particular geographical location, based upon National Weather Service hydrometeorological reports. (Natural Resources Commission; 312 IAC 10.5-2-10; filed Jan 26, 2007, 10:45 a.m.: 20070221-IR-312060092FRA; readopted filed Sep 19, 2013, 10:13 a.m.: 20131016-IR-312130162RFA)