LWI Region 5 Mermentau Headwaters - HEC-RAS Simulation: May 2017 Validation

In May 2017, Southwest Louisiana and Texas experienced a non-tropical event with a short storm duration that contained several supercell thunderstorms. These thunderstorms produced 8 to 10+ inches of rainfall over a very short period and produced large hail. The heavy rainfall resulted in flash flooding across Louisiana with Calcasieu and Jefferson Davis Parishes being the most impacted (NWS n.d.e). The period of April 29 to May 10, 2017, is modeled in HEC-RAS. This is the May 2017 validation flood run for the Mermentau Headwaters combined model. The hydrology for this event is derived from HEC-HMS model developed by HDR for Mermentau Headwaters region.

Model Software Version

HEC-RAS version 6.4.1

Model Application

LWI Region 5 Mermentau Headwaters HEC-RAS Model

Simulation Type

VALIDATION

Input Files

Title Description Location
Input DSS File HMS Inflow file for May 2017 validation event. /R05_MH_HEC-RAS/May2017_Validation.dss
Boundary Condition File RAS master input text file /R05_MH_HEC-RAS/MH_2D_Model.b16
Unsteady Flow File Stores user-defined flow options, initial conditions and hydrographs are stored /R05_MH_HEC-RAS/MH_2D_Model.u15
Plan File Model plan data for May 2017 validation event. /R05_MH_HEC-RAS/MH_2D_Model.p16
Initial Conditions File Stores all configured hydraulic initial conditions for running simulation /R05_MH_HEC-RAS/MH_2D_Model.ic.o16

Output files

Title Description Location
Unsteady Flow Log Output File Stores the computational log and hydraulic solution error computations /R05_MH_HEC-RAS/MH_2D_Model.bco16
Plan HDF file result output in HDF format /R05_MH_HEC-RAS/MH_2D_Model.p16.hdf
DSS Output File HEC-RAS output file in DSS format /R05_MH_HEC-RAS/ras_May2017_Validation.dss

Temporal extent
2017-04-29
2017-05-10

Temporal resolution

6SEC

Resource Files

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Metadata record information

Created By hdr_lwi_region_5@hdrinc.com
Created At 2024-06-27t14:05:40.171846+00:00
Access Level Public
Is Reviewed True
Owner hdr_lwi_region_5@hdrinc.com