LWI Region 5 Mermentau Headwaters - Bayou Jonas at Interstate 10 near Egan HEC-HMS Model: Historic Event scaled to 5-Year Design Storm

This watershed simulation models a 5-year design storm for the KCDA Bayou Jonas at Interstate 10 near Egan (MH_MdlC_07_UG). The August 2016 historical tropical storm scaled by a factor of 0.45 to represent the 5-year 24-hour design storm precipitation volume was used as the meteorological input to the HMS model. Results of this simulation are applied as inputs to the LWI Region 5 Mermentau Headwaters HEC-RAS Model 5-year design storm simulation over MH_MdlC_07_UG. Basin: B_CalibratedBase - Tc, None. Meteorology: MD07UG_5YR_AUG2016_SF0.45V2, None. None. HMS 4.12

Model Software Version

HEC-HMS version 4.12

Model Application

LWI Region 5 Mermentau Headwaters – Design Storm HMS Model

Simulation Type

SCENARIO

Input Files

Title Description Location
Meteorologic File Configuration for precipitation, evapotranspiration, and snowmelt data. /LWI_Mermentau_HW/MD07UG_5YR_AUG2016_SF0.45V2.met
Forecast File Forecast alternatives properties including start and end times, blending controls, and parameter adjustments. /LWI_Mermentau_HW/Forecast/MD07UG_5YR_AUG2016_SF0.45V2.forecast

Output files

Title Description Location
Output DSS File Stores simulation hydrologic and hydraulic results at junctions, reaches, sources, diversions, and sinks /LWI_Mermentau_HW/MD07UG_5YR_AUG2016_SF0.45V2.dss

Parameters

Parameter Value
Canopy ['None']
LossRate ['Gridded Deficit Constant']
Transform ['Modified Clark']
Baseflow ['Recession']
Route ['Muskingum Cunge']
Precipitation Method Gridded Precipitation

Temporal extent
3000-07-31
3000-08-05

Temporal resolution

5 Minutes

Resource Files

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Metadata record information

Created By hdr_lwi_region_5@hdrinc.com
Created At 2025-06-02t23:43:22.564430+00:00
Access Level Public
Is Reviewed True
Owner hdr_lwi_region_5@hdrinc.com