LWI Region 5 Mermentau Headwaters - HEC-RAS Simulation: Laura 2020 Validation

On August 27, 2020, Hurricane Laura made landfall in Cameron, Louisiana, as a category 4 hurricane. Hurricane Laura is the strongest hurricane to hit Southwest Louisiana since records began in 1851. Hurricane Laura caused wind damage to buildings and trees across Louisiana. Due to the quick movement of Hurricane Laura, the maximum measured rainfall was recorded as 11.74 inches 2 miles ENE of Starks, LA (NWS n.d.g). The period of August 25 to September 4, 2020, is simulated in the HEC-RAS model. Hurricane Laura was a tropical event with a short storm duration. This is the Laura 2020 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 Laura 2020 validation event. /R05_MH_HEC-RAS/Laura_Validation.dss
Boundary Condition File RAS master input text file /R05_MH_HEC-RAS/MH_2D_Model.b13
Unsteady Flow File Stores user-defined flow options, initial conditions and hydrographs are stored /R05_MH_HEC-RAS/MH_2D_Model.u12
Initial Conditions File Stores all configured hydraulic initial conditions for running simulation /R05_MH_HEC-RAS/MH_2D_Model.ic.o13
Plan File Model plan data for Laura 2020 validation event /R05_MH_HEC-RAS/MH_2D_Model.p13

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.bc013
Plan HDF file result output in HDF format /R05_MH_HEC-RAS/MH_2D_Model.p13.hdf
DSS Output File HEC-RAS output file in DSS format /R05_MH_HEC-RAS/ras_Laura2020_Validation.dss

Temporal extent
2020-08-25
2020-09-04

Temporal resolution

6SEC

Resource Files

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Metadata record information

Created By hdr_lwi_region_5@hdrinc.com
Created At 2024-06-27t13:52:23.879859+00:00
Access Level Public
Is Reviewed True
Owner hdr_lwi_region_5@hdrinc.com