LWI Region 5 Mermentau Headwaters - Atlas 14 Everywhere HEC-HMS Model: 50-Year Design Storm
This Mermentau Headwater watershed simulation models a 50-year National Oceanic and Atmospheric Administration (NOAA) Atlas 14 Everywhere (A14E) event with 24-hour duration as part of the Louisiana Watershed Initiative (LWI). Results of this simulation are applied as inputs to the LWI Region 5 Mermentau Headwaters HEC-RAS Model 50-year design storm simulation for the entire Mermentau Headwaters watershed. Basin: B_CalibratedBase - Tc, None. Meteorology: Atlas14_50YR_24H, None. None. HMS 4.12
Model Software Version
HEC-HMS version 4.12Model Application
LWI Region 5 Mermentau Headwaters – Design Storm HMS ModelSimulation Type
SCENARIOInput Files
| Title | Description | Location |
|---|---|---|
| Meteorologic File | Configuration for precipitation, evapotranspiration, and snowmelt data. | /LWI_Mermentau_HW/Atlas14_50YR_24H.met |
| Forecast File | Forecast alternatives properties including start and end times, blending controls, and parameter adjustments. | /LWI_Mermentau_HW/Forecast/Atlas14_50YR_24H.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/Atlas14_50YR_24H.dss |
Parameters
| Parameter | Value |
|---|---|
| Canopy | ['None'] |
| LossRate | ['Gridded Deficit Constant'] |
| Transform | ['Modified Clark'] |
| Baseflow | ['Recession'] |
| Route | ['Muskingum Cunge'] |
| Precipitation Method | Frequency Based Hypothetical |
Temporal extent
| 3000-07-31 |
| 3000-08-05 |
Temporal resolution
5 MinutesResource Files
Info: Please log in to view and download resource files.
Metadata record information
| Created By | hdr_lwi_region_5@hdrinc.com |
| Created At | 2025-06-02t23:11:44.646256+00:00 |
| Access Level | Public |
| Is Reviewed | True |
| Owner | hdr_lwi_region_5@hdrinc.com |