HEC-HMS Tutorials and Guides HMS Modeling Applications Probable Maximum Flood Tutorials Current: Developing Probable Maximum Precipitation (PMP) Estimates PDF Download PDF Download page Developing Probable Maximum Precipitation (PMP) Estimates. Current page Include child pages All pages Developing Probable Maximum Precipitation (PMP) Estimates Introduction to Probable Maximum Precipitation (PMP) EstimatesApplying the HMR52 Storm Meteorologic Model in HEC-HMS 2022Using the Optimization Trial with an HMR52 Storm Meteorologic Model ×