ufs-community · FernandoAndrade-NOAA · May 13, 2026 · Mar 11, 2026 · Mar 12, 2026 · Apr 14, 2026
diff --git a/.cicd/scripts/regression_test.sh b/.cicd/scripts/regression_test.sh
@@ -52,9 +52,7 @@ function regression_test() {
 	cd tests
 		pwd
 
-      # shellcheck disable=SC2015
-		[[ ${UFS_PLATFORM} =~ clusternoaa ]] && echo "export BL_DATE=20240426" > bl_date.conf || cat bl_date.conf
-
+		[[ ${UFS_PLATFORM} =~ clusternoaa ]]
 		mkdir -p logs/
 		BL_DATE=$(cut -d '=' -f2 bl_date.conf)
 		export BL_DATE

diff --git a/LM4-driver b/LM4-driver
diff --git a/doc/UsersGuide/source/FAQ.rst b/doc/UsersGuide/source/FAQ.rst
@@ -627,4 +627,20 @@ Currently, only variables coming from UFSATM and MOM6 are included, but ``diag_t
 
 See ufs-community `Discussion #33 <https://github.com/orgs/ufs-community/discussions/33>`_ for the question that inspired this FAQ.
 
+==========================================================================================
+Where can I find more information about previous public releases of the UFS Weather Model?
+==========================================================================================
+
+Previous releases of the UFS WM are available, but we recommend using the UFS WM within an application workflow (e.g., `SRW App v3.0.0 <https://github.com/ufs-community/ufs-srweather-app/releases/tag/ufs-srw-v3.0.0>`_ ). Alternatively, users can run the `develop branch <https://github.com/ufs-community/ufs-weather-model>`_ code to check out the latest and greatest features! This code is constantly maintained via regression testing. Users can access information about previous releases of the UFS WM in the User’s Guide for each release:
+
+* `UFS WM User’s Guide <https://ufs-weather-model.readthedocs.io/en/release-public-v3.0.0/>`_ (released with SRW APP v3.0.0)
+* `UFS WM User’s Guide <https://ufs-weather-model.readthedocs.io/en/ufs-srw-v2.2.0-doc/>`_ (released with SRW App v2.2.0)
+
+======================================================================================================
+What is the most recent public release of the UFS Weather Model? What has been updated in the release?
+======================================================================================================
+
+The UFS Weather Model (WM) is constantly evolving, and new features are added at a rapid pace. Users can find those features in the develop branch, but documentation is not always available for the latest updates. The UFS WM is tagged frequently for public and operational releases. The `ufs-land-da-v3.0.0 <https://github.com/ufs-community/land-DA_workflow/releases/tag/v3.0.0>`_ tag of the WM is the most recent public release of the UFS WM, which was released as part of the Land Data Assimilation (DA) System v3.0.0. This tag represents a snapshot of a continuously evolving system undergoing open development. Users may also find the `ufs-srw-v3.0.0 <https://github.com/ufs-community/ufs-weather-model/releases/tag/ufs-srw-v3.0.0>`_ tag of the WM useful; the UFS WM was released as part of the UFS Short-Range Weather (SRW) Application v3.0.0 using this tag. 
+Since the UFS WM contains a huge number of components (e.g., dynamical core, physics, ocean coupling, infrastructure), there have been a wide variety of updates since the most recent SRW App and Land DA release tags. Users can peruse the `large number of pull requests <https://github.com/ufs-community/ufs-weather-model/pulls?q=is%3Apr+is%3Aclosed+merged%3A%3E2025-09-25+>`_ in the UFS WM repository to gain a full understanding of the changes to the top-level system. For changes to specific components, users should consult the component repositories. 
+
 
diff --git a/modulefiles/ufs_aws-ec2.intel.lua b/modulefiles/ufs_aws-ec2.intel.lua
@@ -0,0 +1,29 @@
+help([[
+loads UFS Model prerequisites for NOAA Parallelworks/Intel
+]])
+
+prepend_path("MODULEPATH", "/opt/spack-stack/envs/ue-oneapi-2024.2.1/install/modulefiles/Core")
+prepend_path("MODULEPATH", "/opt/spack-stack/envs/ue-oneapi-2024.2.1/install/modulefiles/intel-oneapi-mpi/2021.13-76kidpb/gcc/11.4.0")
+prepend_path("MODULEPATH", "/opt/modulefiles")
+
+stack_intel_ver=os.getenv("stack_intel_ver") or "2024.2.1"
+load(pathJoin("stack-oneapi", stack_intel_ver))
+
+stack_impi_ver=os.getenv("stack_impi_ver") or "2021.13"
+load(pathJoin("stack-intel-oneapi-mpi", stack_impi_ver))
+
+cmake_ver=os.getenv("cmake_ver") or "3.27.9"
+load(pathJoin("cmake", cmake_ver))
+
+load("ufs_common")
+load("zlib/1.2.13")
+
+nccmp_ver=os.getenv("nccmp_ver") or "1.9.0.1"
+load(pathJoin("nccmp", nccmp_ver))
+
+setenv("CC", "mpiicx")
+setenv("CXX", "mpiicpx")
+setenv("FC", "mpiifort")
+setenv("CMAKE_Platform", "aws-ec2.intel")
+
+whatis("Description: UFS build environment")
diff --git a/tests/compile.sh b/tests/compile.sh
@@ -73,6 +73,8 @@ case ${MACHINE_ID} in
       module purge
     elif [[ ${MACHINE_ID} == hercules ]]; then
       module purge
+    elif [[ ${MACHINE_ID} == "aws-ec2" ]]; then
+      module purge
     fi
 
     # Load fv3 module

diff --git a/tests/detect_machine.sh b/tests/detect_machine.sh
@@ -55,6 +55,10 @@ case $(hostname -f) in
   derecho7.hsn.de.hpc.ucar.edu) MACHINE_ID=derecho ;; ### derecho7
   derecho8.hsn.de.hpc.ucar.edu) MACHINE_ID=derecho ;; ### derecho8
 
+  ip-*) MACHINE_ID=aws-ec2 ;; ### aws-ec2
+  compute-dy-*) MACHINE_ID=aws-ec2 ;; ### aws-ec2
+  processing-dy-*) MACHINE_ID=aws-ec2 ;; ### aws-ec2
+
   discover3[1-5].prv.cube) MACHINE_ID=discover ;; ### discover31-35
   *) MACHINE_ID=UNKNOWN ;;  # Unknown platform
 esac
@@ -114,6 +118,9 @@ elif [[ -d /gpfs/f6 && -d /ncrc ]]; then
 elif [[ -d /opt/spack-stack && -v SINGULARITY_CONTAINER ]]; then
   # We are in a container
   MACHINE_ID=container
+elif [[ -d /opt/spack-stack && -d /lustre ]]; then
+  # We are on aws-ec2.
+  MACHINE_ID=aws-ec2
 else
   echo WARNING: UNKNOWN PLATFORM 1>&2
 fi
diff --git a/tests/logs/OpnReqTests_control_p8_ursa.log b/tests/logs/OpnReqTests_control_p8_ursa.log
@@ -1,9 +1,9 @@
-Fri May  8 02:10:52 UTC 2026
+Tue May 12 05:14:12 UTC 2026
 Start Operation Requirement Test
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_bit_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/bit_base_bit_base
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/bit_base_bit_base
 Checking test bit_base results ....
 Moving baseline bit_base files ....
  Moving sfcf000.nc .........OK
@@ -51,14 +51,14 @@ Moving baseline bit_base files ....
  Moving RESTART/20210323.060000.sfc_data.tile5.nc .........OK
  Moving RESTART/20210323.060000.sfc_data.tile6.nc .........OK
 
-  0: The total amount of wall time                        = 779.155975
-  0: The maximum resident set size (KB)                   = 2617864
+  0: The total amount of wall time                        = 141.530198
+  0: The maximum resident set size (KB)                   = 2609172
 
 Test bit_base PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_dbg_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/dbg_base_dbg_base
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/dbg_base_dbg_base
 Checking test dbg_base results ....
 Moving baseline dbg_base files ....
  Moving sfcf000.nc .........OK
@@ -106,14 +106,14 @@ Moving baseline dbg_base files ....
  Moving RESTART/20210323.060000.sfc_data.tile5.nc .........OK
  Moving RESTART/20210323.060000.sfc_data.tile6.nc .........OK
 
-  0: The total amount of wall time                        = 2737.742046
-  0: The maximum resident set size (KB)                   = 2558172
+  0: The total amount of wall time                        = 2566.070449
+  0: The maximum resident set size (KB)                   = 2548360
 
 Test dbg_base PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/dcp_dcp
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/dcp_dcp
 Checking test dcp results ....
  Comparing sfcf000.nc .....USING NCCMP......OK
  Comparing sfcf021.nc .....USING NCCMP......OK
@@ -160,14 +160,14 @@ Checking test dcp results ....
  Comparing RESTART/20210323.060000.sfc_data.tile5.nc .....USING NCCMP......OK
  Comparing RESTART/20210323.060000.sfc_data.tile6.nc .....USING NCCMP......OK
 
-  0: The total amount of wall time                        = 131.352360
-  0: The maximum resident set size (KB)                   = 2522552
+  0: The total amount of wall time                        = 118.597401
+  0: The maximum resident set size (KB)                   = 2494840
 
 Test dcp PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/mpi_mpi
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/mpi_mpi
 Checking test mpi results ....
  Comparing sfcf000.nc .....USING NCCMP......OK
  Comparing sfcf021.nc .....USING NCCMP......OK
@@ -214,14 +214,14 @@ Checking test mpi results ....
  Comparing RESTART/20210323.060000.sfc_data.tile5.nc .....USING NCCMP......OK
  Comparing RESTART/20210323.060000.sfc_data.tile6.nc .....USING NCCMP......OK
 
-  0: The total amount of wall time                        = 759.241460
-  0: The maximum resident set size (KB)                   = 2536316
+  0: The total amount of wall time                        = 526.502450
+  0: The maximum resident set size (KB)                   = 2511264
 
 Test mpi PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/rst_rst
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/rst_rst
 Checking test rst results ....
  Comparing sfcf000.nc .....USING NCCMP......OK
  Comparing sfcf021.nc .....USING NCCMP......OK
@@ -268,14 +268,14 @@ Checking test rst results ....
  Comparing RESTART/20210323.060000.sfc_data.tile5.nc .....USING NCCMP......OK
  Comparing RESTART/20210323.060000.sfc_data.tile6.nc .....USING NCCMP......OK
 
-  0: The total amount of wall time                        = 689.441522
-  0: The maximum resident set size (KB)                   = 2514056
+  0: The total amount of wall time                        = 535.601068
+  0: The maximum resident set size (KB)                   = 2519640
 
 Test rst PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/std_base_std_base
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/std_base_std_base
 Checking test std_base results ....
 Moving baseline std_base files ....
  Moving sfcf000.nc .........OK
@@ -323,14 +323,14 @@ Moving baseline std_base files ....
  Moving RESTART/20210323.060000.sfc_data.tile5.nc .........OK
  Moving RESTART/20210323.060000.sfc_data.tile6.nc .........OK
 
-  0: The total amount of wall time                        = 518.570235
-  0: The maximum resident set size (KB)                   = 2527204
+  0: The total amount of wall time                        = 707.223450
+  0: The maximum resident set size (KB)                   = 2523008
 
 Test std_base PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/control_p8_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1584218/thr_thr
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1196151/thr_thr
 Checking test thr results ....
  Comparing sfcf000.nc .....USING NCCMP......OK
  Comparing sfcf021.nc .....USING NCCMP......OK
@@ -377,11 +377,11 @@ Checking test thr results ....
  Comparing RESTART/20210323.060000.sfc_data.tile5.nc .....USING NCCMP......OK
  Comparing RESTART/20210323.060000.sfc_data.tile6.nc .....USING NCCMP......OK
 
-  0: The total amount of wall time                        = 738.238726
-  0: The maximum resident set size (KB)                   = 2525480
+  0: The total amount of wall time                        = 124.918354
+  0: The maximum resident set size (KB)                   = 2506936
 
 Test thr PASS
 
 OPERATION REQUIREMENT TEST WAS SUCCESSFUL
-Fri May  8 09:58:11 UTC 2026
-Elapsed time: 07h:47m:19s. Have a nice day!
+Tue May 12 07:04:08 UTC 2026
+Elapsed time: 01h:49m:56s. Have a nice day!
diff --git a/tests/logs/OpnReqTests_regional_control_ursa.log b/tests/logs/OpnReqTests_regional_control_ursa.log
@@ -1,9 +1,9 @@
-Fri May  8 02:11:52 UTC 2026
+Tue May 12 05:15:19 UTC 2026
 Start Operation Requirement Test
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/regional_control_bit_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1595557/bit_base_bit_base
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1208698/bit_base_bit_base
 Checking test bit_base results ....
 Moving baseline bit_base files ....
  Moving dynf000.nc .........OK
@@ -15,14 +15,14 @@ Moving baseline bit_base files ....
  Moving NATLEV.GrbF00 .........OK
  Moving NATLEV.GrbF06 .........OK
 
-  0: The total amount of wall time                        = 296.232455
-  0: The maximum resident set size (KB)                   = 2076384
+  0: The total amount of wall time                        = 315.568199
+  0: The maximum resident set size (KB)                   = 2074608
 
 Test bit_base PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/regional_control_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1595557/dcp_dcp
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1208698/dcp_dcp
 Checking test dcp results ....
  Comparing dynf000.nc .....USING NCCMP......OK
  Comparing dynf006.nc .....USING NCCMP......OK
@@ -33,14 +33,14 @@ Checking test dcp results ....
  Comparing NATLEV.GrbF00 .....USING CMP......OK
  Comparing NATLEV.GrbF06 .....USING CMP......OK
 
-  0: The total amount of wall time                        = 223.599639
-  0: The maximum resident set size (KB)                   = 1721600
+  0: The total amount of wall time                        = 204.769340
+  0: The maximum resident set size (KB)                   = 1723488
 
 Test dcp PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/regional_control_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1595557/std_base_std_base
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1208698/std_base_std_base
 Checking test std_base results ....
 Moving baseline std_base files ....
  Moving dynf000.nc .........OK
@@ -52,14 +52,14 @@ Moving baseline std_base files ....
  Moving NATLEV.GrbF00 .........OK
  Moving NATLEV.GrbF06 .........OK
 
-  0: The total amount of wall time                        = 203.168901
-  0: The maximum resident set size (KB)                   = 1724720
+  0: The total amount of wall time                        = 202.752173
+  0: The maximum resident set size (KB)                   = 1727700
 
 Test std_base PASS
 
 
 baseline dir = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-stmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/OPNREQ_TEST/regional_control_std_base_intel
-working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1595557/thr_thr
+working dir  = /scratch3/NCEPDEV/stmp/Fernando.Andrade-maldonado/ORT-ptmp/Fernando.Andrade-maldonado/FV3_OPNREQ_TEST/opnReqTest_1208698/thr_thr
 Checking test thr results ....
  Comparing dynf000.nc .....USING NCCMP......OK
  Comparing dynf006.nc .....USING NCCMP......OK
@@ -70,11 +70,11 @@ Checking test thr results ....
  Comparing NATLEV.GrbF00 .....USING CMP......OK
  Comparing NATLEV.GrbF06 .....USING CMP......OK
 
-  0: The total amount of wall time                        = 204.959826
-  0: The maximum resident set size (KB)                   = 1721576
+  0: The total amount of wall time                        = 203.462647
+  0: The maximum resident set size (KB)                   = 1729856
 
 Test thr PASS
 
 OPERATION REQUIREMENT TEST WAS SUCCESSFUL
-Fri May  8 13:44:08 UTC 2026
-Elapsed time: 11h:32m:16s. Have a nice day!
+Tue May 12 05:54:16 UTC 2026
+Elapsed time: 00h:38m:57s. Have a nice day!
+1 −1		LM4
+10 −9		nuopc_cap/lm4_cap.F90
+12 −37		nuopc_cap/lm4_driver.F90
+4 −14		nuopc_cap/lm4_surface_flux.F90