HEC-HMS Tutorials and Guides Meteorologic Methods in HMS Current: Flow Frequency Simulation Options in HEC-HMS PDF Download PDF Download page Flow Frequency Simulation Options in HEC-HMS. Current page Include child pages All pages Flow Frequency Simulation Options in HEC-HMS Creating a Hypothetical Storm Time Pattern Percentage Curve Applying New Frequency Storm Enhancements Applying New Hypothetical Storm Enhancements Validating Precipitation Grid Sampling for Hypothetical and Frequency Storm Applying the New Frequency Analysis Compute Type Applying the Depth Area Analysis Simulation Type Applying Depth-Area Analysis to Precipitation-Frequency Grids Applying the Frequency Storm Met Model in HEC-HMS Applying the Hypothetical Storm Met Model in HEC-HMS Applying NOAA Atlas 14 Temporal Patterns Sampling NOAA Atlas 14 Temporal Patterns Creating Depth-Area Reduction Curves from Gridded Precipitation Data Sampling Depth-Area-Reduction Curves for a Hypothetical Storm ×