diff --git a/.cicd/Jenkinsfile b/.cicd/Jenkinsfile
index 660423c3c3..f4e0294441 100644
--- a/.cicd/Jenkinsfile
+++ b/.cicd/Jenkinsfile
@@ -10,11 +10,11 @@ pipeline {
     parameters {
         // Allow job runner to filter based on platform
         // Use the line below to enable all PW clusters
-        // choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'cheyenne', 'gaea', 'hera', 'jet', 'orion', 'hercules', 'pclusternoaav2use1', 'azclusternoaav2eus1', 'gclusternoaav2usc1'], description: 'Specify the platform(s) to use')
+        // choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'cheyenne', 'gaea', 'gaea-c5', 'hera', 'jet', 'orion', 'hercules', 'pclusternoaav2use1', 'azclusternoaav2eus1', 'gclusternoaav2usc1'], description: 'Specify the platform(s) to use')
         // Use the line below to enable the PW AWS cluster
-        // choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'cheyenne', 'gaea', 'hera', 'jet', 'orion', 'hercules', 'pclusternoaav2use1'], description: 'Specify the platform(s) to use')
-        // choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'cheyenne', 'gaea', 'hera', 'jet', 'orion', 'hercules'], description: 'Specify the platform(s) to use')
-        choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'gaea', 'hera', 'jet', 'orion', 'hercules'], description: 'Specify the platform(s) to use')
+        // choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'cheyenne', 'gaea', 'gaea-c5', 'hera', 'jet', 'orion', 'hercules', 'pclusternoaav2use1'], description: 'Specify the platform(s) to use')
+        // choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'cheyenne', 'gaea', 'gaea-c5', 'hera', 'jet', 'orion', 'hercules'], description: 'Specify the platform(s) to use')
+        choice(name: 'SRW_PLATFORM_FILTER', choices: ['all', 'gaea', 'gaea-c5', 'hera', 'jet', 'orion', 'hercules'], description: 'Specify the platform(s) to use')
         // Allow job runner to filter based on compiler
         choice(name: 'SRW_COMPILER_FILTER', choices: ['all', 'gnu', 'intel'], description: 'Specify the compiler(s) to use to build')
         // Uncomment the following line to re-enable comprehensive tests
@@ -77,8 +77,8 @@ pipeline {
                 axes {
                     axis {
                         name 'SRW_PLATFORM'
-                        // values 'cheyenne', 'gaea', 'hera', 'jet', 'orion', 'hercules'//, 'pclusternoaav2use1', 'azclusternoaav2eus1', 'gclusternoaav2usc1'
-                        values 'gaea', 'hera', 'jet', 'orion', 'hercules' //, 'pclusternoaav2use1', 'azclusternoaav2eus1', 'gclusternoaav2usc1'
+                        // values 'cheyenne', 'gaea', 'gaea-c5', 'hera', 'jet', 'orion', 'hercules' //, 'pclusternoaav2use1', 'azclusternoaav2eus1', 'gclusternoaav2usc1'
+                        values 'gaea', 'gaea-c5', 'hera', 'jet', 'orion', 'hercules' //, 'pclusternoaav2use1', 'azclusternoaav2eus1', 'gclusternoaav2usc1'
                     }
 
                     axis {
@@ -92,7 +92,7 @@ pipeline {
                     exclude {
                             axis {
                             name 'SRW_PLATFORM'
-                            values 'gaea', 'jet', 'orion', 'hercules' //, 'pclusternoaav2use1' , 'azclusternoaav2eus1', 'gclusternoaav2usc1'
+                            values 'gaea', 'gaea-c5', 'jet', 'orion', 'hercules' //, 'pclusternoaav2use1' , 'azclusternoaav2eus1', 'gclusternoaav2usc1'
                         }
 
                         axis {
diff --git a/.cicd/scripts/wrapper_srw_ftest.sh b/.cicd/scripts/wrapper_srw_ftest.sh
index 14552d78e1..02ece830f9 100755
--- a/.cicd/scripts/wrapper_srw_ftest.sh
+++ b/.cicd/scripts/wrapper_srw_ftest.sh
@@ -28,6 +28,11 @@ if [[ "${SRW_PLATFORM}" == gaea ]]; then
     sed -i 's|qos=batch|qos=windfall|g' ${WORKSPACE}/.cicd/scripts/${workflow_cmd}_srw_ftest.sh
 fi
 
+if [[ "${SRW_PLATFORM}" == gaea-c5 ]]; then
+    sed -i '15i #SBATCH --clusters=c5' ${WORKSPACE}/.cicd/scripts/${workflow_cmd}_srw_ftest.sh
+    sed -i 's|qos=batch|qos=normal|g' ${WORKSPACE}/.cicd/scripts/${workflow_cmd}_srw_ftest.sh
+fi
+
 # Call job card and return job_id
 echo "Running: ${workflow_cmd} -A ${SRW_PROJECT} ${arg_1} ${WORKSPACE}/.cicd/scripts/${workflow_cmd}_srw_ftest.sh"
 job_id=$(${workflow_cmd} -A ${SRW_PROJECT} ${arg_1} ${WORKSPACE}/.cicd/scripts/${workflow_cmd}_srw_ftest.sh)
diff --git a/devbuild.sh b/devbuild.sh
index 6c703816ec..b21998fc8e 100755
--- a/devbuild.sh
+++ b/devbuild.sh
@@ -228,7 +228,7 @@ set -eu
 # automatically determine compiler
 if [ -z "${COMPILER}" ] ; then
   case ${PLATFORM} in
-    jet|hera|gaea) COMPILER=intel ;;
+    jet|hera|gaea|gaea-c5) COMPILER=intel ;;
     orion) COMPILER=intel ;;
     wcoss2) COMPILER=intel ;;
     cheyenne) COMPILER=intel ;;
diff --git a/etc/lmod-setup.csh b/etc/lmod-setup.csh
index 4be4659c87..dc8fb2b064 100644
--- a/etc/lmod-setup.csh
+++ b/etc/lmod-setup.csh
@@ -40,6 +40,9 @@ else if ( "$L_MACHINE" == singularity ) then
 else if ( "$L_MACHINE" == gaea ) then
    source /lustre/f2/dev/role.epic/contrib/Lmod_init.csh
 
+else if ( "$L_MACHINE" == gaea-c5 ) then
+   source /lustre/f2/dev/role.epic/contrib/Lmod_init_C5.csh
+
 else if ( "$L_MACHINE" == derecho ) then
    module reset
 
diff --git a/etc/lmod-setup.sh b/etc/lmod-setup.sh
index 4c89d631d7..8a6b651958 100644
--- a/etc/lmod-setup.sh
+++ b/etc/lmod-setup.sh
@@ -47,6 +47,9 @@ elif [ "$L_MACHINE" = singularity ]; then
 elif [ "$L_MACHINE" = gaea ]; then
    source /lustre/f2/dev/role.epic/contrib/Lmod_init.sh
 
+elif [ "$L_MACHINE" = gaea-c5 ]; then
+   source /lustre/f2/dev/role.epic/contrib/Lmod_init_C5.sh
+
 elif [ "$L_MACHINE" = derecho ]; then
    module reset
 
diff --git a/modulefiles/build_gaea-c5_intel.lua b/modulefiles/build_gaea-c5_intel.lua
new file mode 100644
index 0000000000..84d05290d7
--- /dev/null
+++ b/modulefiles/build_gaea-c5_intel.lua
@@ -0,0 +1,30 @@
+help([[
+This module loads libraries for building the UFS SRW App on
+the NOAA RDHPC machine Gaea C5 using Intel-2023.1.0
+]])
+
+whatis([===[Loads libraries needed for building the UFS SRW App on Gaea C5 ]===])
+
+load(pathJoin("cmake", os.getenv("cmake_ver") or "3.23.1"))
+
+prepend_path("MODULEPATH","/lustre/f2/dev/role.epic/contrib/C5/hpc-stack/intel-classic-2023.1.0/modulefiles/stack")
+load(pathJoin("hpc", os.getenv("hpc_ver") or "1.2.0"))
+load(pathJoin("intel-classic", os.getenv("intel_classic_ver") or "2023.1.0"))
+load(pathJoin("cray-mpich", os.getenv("cray_mpich_ver") or "8.1.25"))
+load(pathJoin("hpc-intel-classic", os.getenv("hpc_intel_classic_ver") or "2023.1.0"))
+load(pathJoin("hpc-cray-mpich", os.getenv("hpc_cray_mpich_ver") or "8.1.25"))
+
+load("srw_common")
+
+unload("darshan-runtime/3.4.0")
+setenv("CFLAGS","-diag-disable=10441")
+setenv("FFLAGS","-diag-disable=10441")
+
+setenv("CC","cc")
+setenv("FC","ftn")
+setenv("CXX","CC")
+setenv("CMAKE_C_COMPILER","cc")
+setenv("CMAKE_Fortran_COMPILER","ftn")
+setenv("CMAKE_CXX_COMPILER","CC")
+setenv("CMAKE_Platform","gaea-c5.intel")
+
diff --git a/modulefiles/tasks/gaea-c5/plot_allvars.local.lua b/modulefiles/tasks/gaea-c5/plot_allvars.local.lua
new file mode 100644
index 0000000000..7c2e3a9ba2
--- /dev/null
+++ b/modulefiles/tasks/gaea-c5/plot_allvars.local.lua
@@ -0,0 +1,4 @@
+prepend_path("MODULEPATH","/lustre/f2/dev/role.epic/contrib/C5/miniconda3/modulefiles")
+load(pathJoin("miniconda3", os.getenv("miniconda3_ver") or "4.12.0"))
+
+setenv("SRW_ENV", "regional_workflow")
diff --git a/modulefiles/tasks/gaea-c5/python_srw.lua b/modulefiles/tasks/gaea-c5/python_srw.lua
new file mode 100644
index 0000000000..673aa800b8
--- /dev/null
+++ b/modulefiles/tasks/gaea-c5/python_srw.lua
@@ -0,0 +1,5 @@
+unload("miniconda3")
+prepend_path("MODULEPATH","/lustre/f2/dev/role.epic/contrib/C5/miniconda3/modulefiles")
+load(pathJoin("miniconda3", os.getenv("miniconda3_ver") or "4.12.0"))
+
+setenv("SRW_ENV", "workflow_tools")
diff --git a/modulefiles/tasks/gaea-c5/run_vx.local.lua b/modulefiles/tasks/gaea-c5/run_vx.local.lua
new file mode 100644
index 0000000000..5979a8db96
--- /dev/null
+++ b/modulefiles/tasks/gaea-c5/run_vx.local.lua
@@ -0,0 +1,6 @@
+--[[
+Compiler-specific modules are used for met and metplus libraries
+--]]
+load(pathJoin("met", os.getenv("met_ver") or "10.1.2"))
+load(pathJoin("metplus", os.getenv("metplus_ver") or "4.1.3"))
+load("python_srw")
diff --git a/modulefiles/wflow_gaea-c5.lua b/modulefiles/wflow_gaea-c5.lua
new file mode 100644
index 0000000000..12467dfd74
--- /dev/null
+++ b/modulefiles/wflow_gaea-c5.lua
@@ -0,0 +1,21 @@
+help([[
+This module loads python environement for running the UFS SRW App on
+the NOAA RDHPC machine Gaea C5
+]])
+
+whatis([===[Loads libraries needed for running the UFS SRW App on gaea ]===])
+
+unload("python")
+load("set_pythonpath")
+prepend_path("MODULEPATH","/lustre/f2/dev/role.epic/contrib/C5/miniconda3/modulefiles")
+load(pathJoin("miniconda3", os.getenv("miniconda3_ver") or "4.12.0"))
+prepend_path("MODULEPATH","/lustre/f2/dev/role.epic/contrib/C5/rocoto/modulefiles")
+load("rocoto")
+
+pushenv("MKLROOT", "/opt/intel/oneapi/mkl/2023.1.0/")
+
+if mode() == "load" then
+   LmodMsgRaw([===[Please do the following to activate conda:
+       > conda activate workflow_tools
+]===])
+end
diff --git a/tests/WE2E/machine_suites/coverage.gaea-c5 b/tests/WE2E/machine_suites/coverage.gaea-c5
new file mode 100644
index 0000000000..4ff7f61f3c
--- /dev/null
+++ b/tests/WE2E/machine_suites/coverage.gaea-c5
@@ -0,0 +1,11 @@
+community
+custom_ESGgrid_NewZealand_3km
+grid_RRFS_CONUScompact_13km_ics_HRRR_lbcs_RAP_suite_RRFS_v1beta
+grid_RRFS_CONUS_13km_ics_FV3GFS_lbcs_FV3GFS_suite_RAP
+grid_RRFS_CONUS_13km_ics_FV3GFS_lbcs_FV3GFS_suite_HRRR
+grid_RRFS_CONUS_3km_ics_FV3GFS_lbcs_FV3GFS_suite_GFS_v15_thompson_mynn_lam3km
+grid_RRFS_CONUScompact_25km_ics_HRRR_lbcs_HRRR_suite_HRRR
+grid_RRFS_CONUScompact_3km_ics_HRRR_lbcs_RAP_suite_RRFS_v1beta
+grid_SUBCONUS_Ind_3km_ics_RAP_lbcs_RAP_suite_RRFS_v1beta_plot
+nco_ensemble
+nco_grid_RRFS_CONUS_3km_ics_FV3GFS_lbcs_FV3GFS_suite_GFS_v15_thompson_mynn_lam3km
diff --git a/tests/WE2E/setup_WE2E_tests.sh b/tests/WE2E/setup_WE2E_tests.sh
index 309c755966..0bfe5c2a56 100755
--- a/tests/WE2E/setup_WE2E_tests.sh
+++ b/tests/WE2E/setup_WE2E_tests.sh
@@ -45,7 +45,7 @@ function usage {
 
 }
 
-machines=( hera jet cheyenne derecho orion wcoss2 gaea odin singularity macos noaacloud )
+machines=( hera jet cheyenne derecho orion wcoss2 gaea gaea-c5 odin singularity macos noaacloud )
 
 if [ "$1" = "-h" ] ; then usage ; fi
 [[ $# -le 2 ]] && usage
diff --git a/tests/build.sh b/tests/build.sh
index c6cbe89c1d..b1d7a00091 100755
--- a/tests/build.sh
+++ b/tests/build.sh
@@ -20,8 +20,8 @@ function usage() {
   echo
   exit 1
 }
-
-machines=( hera jet cheyenne derecho orion hercules wcoss2 gaea odin singularity macos noaacloud )
+ 
+machines=( hera jet cheyenne derecho orion hercules wcoss2 gaea gaea-c5 odin singularity macos noaacloud )
 
 [[ $# -gt 4 ]] && usage
 
diff --git a/ush/load_modules_run_task.sh b/ush/load_modules_run_task.sh
index d3806b279c..24c8de80c3 100755
--- a/ush/load_modules_run_task.sh
+++ b/ush/load_modules_run_task.sh
@@ -188,6 +188,7 @@ module list
 
 if [ -n "${SRW_ENV:-}" ] ; then
   set +u
+  conda deactivate
   conda activate ${SRW_ENV}
   set -u
 fi
diff --git a/ush/machine/gaea-c5.yaml b/ush/machine/gaea-c5.yaml
new file mode 100644
index 0000000000..86653be7b5
--- /dev/null
+++ b/ush/machine/gaea-c5.yaml
@@ -0,0 +1,54 @@
+platform:
+  WORKFLOW_MANAGER: rocoto
+  NCORES_PER_NODE: 128
+  SCHED: slurm
+  TEST_CCPA_OBS_DIR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/obs_data/ccpa/proc
+  TEST_MRMS_OBS_DIR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/obs_data/mrms/proc
+  TEST_NDAS_OBS_DIR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/obs_data/ndas/proc
+  DOMAIN_PREGEN_BASEDIR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/FV3LAM_pregen
+  QUEUE_DEFAULT: normal
+  QUEUE_FCST: normal
+  QUEUE_HPSS: normal
+  REMOVE_MEMORY: True
+  PARTITION_HPSS: eslogin_c5
+  RUN_CMD_FCST: srun --export=ALL -n ${PE_MEMBER01}
+  RUN_CMD_POST: srun --export=ALL -n $nprocs
+  RUN_CMD_PRDGEN: srun --export=ALL -n $nprocs
+  RUN_CMD_SERIAL: time
+  RUN_CMD_UTILS: srun --export=ALL -n $nprocs
+  SCHED_NATIVE_CMD: --clusters=c5 --partition=batch --export=NONE
+  SCHED_NATIVE_CMD_HPSS: --clusters=es --partition=eslogin_c5 --export=NONE
+  PRE_TASK_CMDS: '{ ulimit -s unlimited; ulimit -a; }'
+  TEST_EXTRN_MDL_SOURCE_BASEDIR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data
+  TEST_PREGEN_BASEDIR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/FV3LAM_pregen
+  TEST_ALT_EXTRN_MDL_SYSBASEDIR_ICS: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/dummy_FV3GFS_sys_dir
+  TEST_ALT_EXTRN_MDL_SYSBASEDIR_LBCS: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/dummy_FV3GFS_sys_dir
+  TEST_VX_FCST_INPUT_BASEDIR: '{{ "/lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/output_data/fcst_" }}{{ "ens" if (global.NUM_ENS_MEMBERS > 0) else "det" }}{{ "/{{workflow.PREDEF_GRID_NAME}}" }}{% raw %}{% endraw %}'
+  FIXaer: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/fix/fix_aer
+  FIXgsi: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/fix/fix_gsi
+  FIXgsm: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/fix/fix_am
+  FIXlut: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/fix/fix_lut
+  FIXorg: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/fix/fix_orog
+  FIXsfc: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/fix/fix_sfc_climo
+  FIXshp: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/NaturalEarth
+  EXTRN_MDL_DATA_STORES: aws
+data:
+  ics_lbcs:
+    FV3GFS:
+      nemsio: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/FV3GFS/nemsio/${yyyymmdd}${hh}
+      grib2: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/FV3GFS/grib2/${yyyymmdd}${hh} 
+      netcdf: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/FV3GFS/netcdf/${yyyymmdd}${hh} 
+    RAP: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/RAP/${yyyymmdd}${hh}
+    HRRR: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/HRRR/${yyyymmdd}${hh}
+    RAP: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/RAP/${yyyymmdd}${hh}
+    GSMGFS: /lustre/f2/dev/role.epic/contrib/UFS_SRW_data/develop/input_model_data/GSMGFS/${yyyymmdd}${hh}
+rocoto:
+  tasks:
+    metatask_run_ensemble:
+      task_run_fcst_mem#mem#:
+        cores: '{{ task_run_fcst.PE_MEMBER01 // 1 }}'
+        native: '--cpus-per-task {{ task_run_fcst.OMP_NUM_THREADS_RUN_FCST|int }} --exclusive {{ platform.SCHED_NATIVE_CMD }}'
+        nodes:
+        nnodes:
+        nodesize:
+        ppn:
diff --git a/ush/retrieve_data.py b/ush/retrieve_data.py
index 8f71e73d45..5acf9d5ce9 100755
--- a/ush/retrieve_data.py
+++ b/ush/retrieve_data.py
@@ -133,7 +133,7 @@ def download_file(url):
     # -c continue previous attempt
     # -T timeout seconds
     # -t number of tries
-    cmd = f"wget -q -c -T 10 -t 2 {url}"
+    cmd = f"wget -q -c -T 15 -t 2 {url}"
     logging.debug(f"Running command: \n {cmd}")
     try:
         subprocess.run(
diff --git a/ush/valid_param_vals.yaml b/ush/valid_param_vals.yaml
index 385c061844..e73f57c2f7 100644
--- a/ush/valid_param_vals.yaml
+++ b/ush/valid_param_vals.yaml
@@ -4,7 +4,7 @@
 valid_vals_RUN_ENVIR: ["nco", "community"]
 valid_vals_VERBOSE: [True, False]
 valid_vals_DEBUG: [True, False]
-valid_vals_MACHINE: ["HERA", "WCOSS2", "ORION", "HERCULES", "JET", "ODIN", "CHEYENNE", "DERECHO", "STAMPEDE", "LINUX", "MACOS", "NOAACLOUD", "SINGULARITY", "GAEA"]
+valid_vals_MACHINE: ["HERA", "WCOSS2", "ORION", "HERCULES", "JET", "ODIN", "CHEYENNE", "DERECHO", "STAMPEDE", "LINUX", "MACOS", "NOAACLOUD", "SINGULARITY", "GAEA", "GAEA-C5"]
 valid_vals_SCHED: ["slurm", "pbspro", "lsf", "lsfcray", "none"]
 valid_vals_FCST_MODEL: ["ufs-weather-model"]
 valid_vals_WORKFLOW_MANAGER: ["rocoto", "ecflow", "none"]