GFS v16.3.28

What's Changed

• GFSv16.3.28 - annual CO2 update by @DavidHuber-NOAA in #4183

Full Changelog: EMC-v16.3.27...EMC-v16.3.28

GFSv16.3.27

What's Changed

• Release/gfs.v16.3.25 by @aerorahul in #3914
• Fold GFS v16.3.25-6 back into dev/gfs.v16 by @DavidHuber-NOAA in #4038
• Update GFS to v16.3.27 to disable encrypted transfers by @aerorahul in #4077

Full Changelog: gfs.v16.3.24...EMC-v16.3.27

EMC-v16.3.26

Data assimilation upgrade which implements a version of GSI closer to the head of the develop branch and
includes the following new data types for assimilation: Windborne Balloon Sondes; Saildrone surface obs;
GOES-19 clear sky radiances; GMI radiances; NOAA-19 Ozone Profile Retreievals. Preparation for Metop-SG
instruments. Also include minor modifications to ATMS thinning; treatment of surface ship pressure
observations and quality control of humidity Jacobians.

Also included in this upgrade are changes to add an indicator log file for WW3 gridded output.

What's Changed

• Updates for RTOFSv2.4.3 operational upgrade by @KateFriedman-NOAA in #2800
• Remove WAFS from ops by @aerorahul in #2889
• Update release notes for WAFS removal from GFS by @KateFriedman-NOAA in #2927
• Update for obsproc/v1.3 and new AFWA snow filename by @KateFriedman-NOAA in #2957
• Update GSI tag to gfsda.v16.3.20 for saildrone data by @KateFriedman-NOAA in #2986
• Add sfcprep to config.resources.nco.static by @KateFriedman-NOAA in #3031
• Update enkfgdas_update job resource/env settings by @KateFriedman-NOAA in #3047
• Remake the package for WAFS removal from GFS by @KateFriedman-NOAA in #3176
• Updated release note related to WAFS separation changes by @YaliMao-NOAA in #3179
• Remake the GFS package for obsproc and AFWA upgrade by @KateFriedman-NOAA in #3182
• Fix for syndat_getjtbul code parsing 3-character storm names (GFSv16.3.21) by @KateFriedman-NOAA in #3200
• Release v16.3.22 optimized point output by @AliS-Noaa in #3257
• WW3: Add indicator log file for gridded output by @MatthewMasarik-NOAA in #3304
• Update FIX_DIR to new GFSv16.4.0 fix set by @KateFriedman-NOAA in #3330
• Rename Gulf of Mexico to Gulf of America by @KateFriedman-NOAA in #3352
• Additional Gulf of Mexico name changes in GFS by @KateFriedman-NOAA in #3353
• Updated bufr station list for GFS ops by @KateFriedman-NOAA in #3350
• Update version to v16.3.23 and sync with new v16.3.22 changes by @KateFriedman-NOAA in #3387
• Update operational workflow to work with GSI develop branch by @ADCollard in #3068
• More changes for Release/gfs.v16.4 - should be renamed to gfs.v16.3.25 by @ADCollard in #3739
• Minor bug fixes to minmon and radmon by @ADCollard in #3911
• merge dev/gfs.v16, resolve conflicts and update release notes by @aerorahul in #3915

New Contributors

• @AliS-Noaa made their first contribution in #3257
• @MatthewMasarik-NOAA made their first contribution in #3304

Full Changelog: EMC-v16.3.25...EMC-v16.3.26

EMC-v16.3.25

The upstream RTOFS system is updated to v2.5.

Full Changelog: gfs.v16.3.24...EMC-v16.3.25

GFSv16.3.24 - Tropical storm name updates for 2025-2026 hurricane seasons

RFC 13987 - Upgrade GFS to update tropical storm names for the 2025-2026 hurricane seasons

The syndat_stmnames fix file is changed to update the tropical storm names for the upcoming 2025 and 2026 hurricane seasons.

What's Changed

• GFSv16.3.24 - Tropical storm name updates for 2025-2026 hurricane seasons by @KateFriedman-NOAA in #3648

Full Changelog: gfs.v16.3.23...gfs.v16.3.24

Supported resolutions and platforms

WCOSS2 only

• C768C384L127 cycled & C768 forecast-only
• C384C192L127 cycled & C384 forecast-only
• C192C96L127 cycled & C192 forecast-only

Supported verification packages

• Fit2Obs v1.5
• METplus EMC_verif-global.v2.10.0

Setup steps

1. Quick clone and build instructions

git clone -b gfs.v16.3.24 https://github.com/NOAA-EMC/global-workflow.git
cd global-workflow/sorc
sh checkout.sh
sh build_all.sh
sh link_fv3gfs.sh emc wcoss2

Follow additional build and link instructions here: https://github.com/NOAA-EMC/global-workflow/wiki/Clone-and-build-global-workflow/08b2ec4d0956ea1936d567d9a1ac32614aedfec1

2. Run experiment setup scripts

See the following global-workflow wiki page: https://github.com/NOAA-EMC/global-workflow/wiki/Run-setup-scripts-to-generate-experiment/c85d5c2f87b298b6f0536a2fc2fb425a092c70fc

Note: the above wiki links are to older revisions of the global-workflow GitHub wiki (before updates were made for GFSv17/develop). Use wcoss2 for the machine where needed (e.g. link_fv3gfs.sh script) and ignore references to now unsupported machines (e.g. WCOSS-Dell and WCOSS-Cray).

Report any issues to @KateFriedman-NOAA

GFSv16.3.23 - AFWA global snow, GOES-19, wave point optimization, and bufr station updates

RFC 13833 - AFWA global snow, GOES-19, wave point optimization, and bufr station updates

WHAT the changes are:

1. Add 121 new stations to the GFS BUFR sounding output and correct the location of three existing stations;
2. Use the new AFWA global snow field instead of legacy hemispheric snow fields;
3. Update the GSI code to read Saildrone observations;
4. Update the GSI global_convinfo.txt fix file to allow assimilation of GOES-19 AMVs (Atmospheric Motion Vectors) and monitor Saildrone data;
5. Restructure the logic to generate wave point output.

WHY this changes are being made:

1. New stations are added per request of users;
2. The new global snow file replaces legacy hemispheric files due to be retired;
3. The GSI code is updated to prepare for new data source;
4. The convinfo (conventional data information) file is updated to prepare for transition of the GOES-19 satellite to GOES-East operations and to monitor Saildrone data when available;
5. The wave post point processing change improves efficiency.

Implemented on March 25 during the 12Z cycle.

What's Changed

• GFSv16.3.23 - AFWA global snow, GOES-19, wave point optimization, and bufr station updates by @KateFriedman-NOAA in #3505

Full Changelog: gfs.v16.3.22...gfs.v16.3.23

Supported resolutions and platforms

WCOSS2 only

• C768C384L127 cycled & C768 forecast-only
• C384C192L127 cycled & C384 forecast-only
• C192C96L127 cycled & C192 forecast-only

Supported verification packages

• Fit2Obs v1.5
• METplus EMC_verif-global.v2.10.4

Setup steps

1. Quick clone and build instructions

git clone -b gfs.v16.3.23 https://github.com/NOAA-EMC/global-workflow.git
cd global-workflow/sorc
sh checkout.sh
sh build_all.sh
sh link_fv3gfs.sh emc wcoss2

Follow additional build and link instructions here: https://github.com/NOAA-EMC/global-workflow/wiki/Clone-and-build-global-workflow/08b2ec4d0956ea1936d567d9a1ac32614aedfec1

2. Run experiment setup scripts

See the following global-workflow wiki page: https://github.com/NOAA-EMC/global-workflow/wiki/Run-setup-scripts-to-generate-experiment/c85d5c2f87b298b6f0536a2fc2fb425a092c70fc

Note: the above wiki links are to older revisions of the global-workflow GitHub wiki (before updates were made for GFSv17/develop). Use wcoss2 for the machine where needed (e.g. link_fv3gfs.sh script) and ignore references to now unsupported machines (e.g. WCOSS-Dell and WCOSS-Cray).

Report any issues to @KateFriedman-NOAA

GFSv16.3.22 - Gulf of Mexico rename

RFC 13719 - Gulf of Mexico rename

On WCOSS2, implement GFS v16.3.22 which changes references from the Gulf of Mexico to the Gulf of America, per Executive Order 14172.

Implemented on March 6 during the 12Z cycle.

What's Changed

• GFSv16.3.22 - Gulf of Mexico rename by @KateFriedman-NOAA in #3424

Full Changelog: gfs.v16.3.21...gfs.v16.3.22

Supported resolutions and platforms

WCOSS2 only

• C768C384L127 cycled & C768 forecast-only
• C384C192L127 cycled & C384 forecast-only
• C192C96L127 cycled & C192 forecast-only

Supported verification packages

• Fit2Obs v1.5
• METplus EMC_verif-global.v2.10.4

Setup steps

1. Quick clone and build instructions

git clone -b gfs.v16.3.22 https://github.com/NOAA-EMC/global-workflow.git
cd global-workflow/sorc
sh checkout.sh
sh build_all.sh
sh link_fv3gfs.sh emc wcoss2

Follow additional build and link instructions here: https://github.com/NOAA-EMC/global-workflow/wiki/Clone-and-build-global-workflow/08b2ec4d0956ea1936d567d9a1ac32614aedfec1

2. Run experiment setup scripts

See the following global-workflow wiki page: https://github.com/NOAA-EMC/global-workflow/wiki/Run-setup-scripts-to-generate-experiment/c85d5c2f87b298b6f0536a2fc2fb425a092c70fc

Note: the above wiki links are to older revisions of the global-workflow GitHub wiki (before updates were made for GFSv17/develop). Use wcoss2 for the machine where needed (e.g. link_fv3gfs.sh script) and ignore references to now unsupported machines (e.g. WCOSS-Dell and WCOSS-Cray).

Report any issues to @KateFriedman-NOAA

GFSv16.3.21 - WAFS removal from GFS

RFC 13621 - WAFS removal from GFS

On WCOSS2, implement WAFS (World Area Forecast System) v7.0.1 into operations by removing the evaluation flag and turning on production DBnet alerts. This implementation is a separation of the WAFS component from the GFSv16 application. There is no science change. This will allow for easier future updates of the WAFS since it will no longer be embedded in the GFS.

Also included in this upgrade:

• improvements to the enkfgdas_update job resource and environment settings
• a fix for the syndat_getjtbul code when parsing 3-character storm names

Implemented on January 29 during the 12Z cycle.

What's Changed

• GFSv16.3.21 - WAFS removal from GFS by @KateFriedman-NOAA in #3281

Full Changelog: gfs.v16.3.20...gfs.v16.3.21

Supported resolutions and platforms

WCOSS2 only

• C768C384L127 cycled & C768 forecast-only
• C384C192L127 cycled & C384 forecast-only
• C192C96L127 cycled & C192 forecast-only

Supported verification packages

• Fit2Obs v1.5
• METplus EMC_verif-global.v2.10.0

Setup steps

1. Quick clone and build instructions

git clone -b gfs.v16.3.21 https://github.com/NOAA-EMC/global-workflow.git
cd global-workflow/sorc
sh checkout.sh
sh build_all.sh
sh link_fv3gfs.sh emc wcoss2

Follow additional build and link instructions here: https://github.com/NOAA-EMC/global-workflow/wiki/Clone-and-build-global-workflow/08b2ec4d0956ea1936d567d9a1ac32614aedfec1

2. Run experiment setup scripts

See the following global-workflow wiki page: https://github.com/NOAA-EMC/global-workflow/wiki/Run-setup-scripts-to-generate-experiment/c85d5c2f87b298b6f0536a2fc2fb425a092c70fc

Note: the above wiki links are to older revisions of the global-workflow GitHub wiki (before updates were made for GFSv17/develop). Use wcoss2 for the machine where needed (e.g. link_fv3gfs.sh script) and ignore references to now unsupported machines (e.g. WCOSS-Dell and WCOSS-Cray).

Report any issues to @KateFriedman-NOAA

GFSv16.3.20 - annual CO2 update and turn on PlanetIQ assimilation

RFC 13485 - annual CO2 update and PlanetIQ assimilation

On WCOSS2, upgrade the GFS to v16.3.20. This includes the following changes:

● install 2025 carbon dioxide (CO2) fix file updates before the start of the new year;
● turn on assimilation of PlanetiQ GPS Radio Occultation (GPS-RO) data;
● load the cmdaccel module at the start of wave point postprocessor jobs to stabilize runtime.

Implemented on December 9 during the 12Z cycle.

What's Changed

• GFSv16.3.20 - annual CO2 update and PlanetIQ assimilation by @KateFriedman-NOAA in #3174

Full Changelog: gfs.v16.3.19...gfs.v16.3.20

Supported resolutions and platforms

WCOSS2 only

• C768C384L127 cycled & C768 forecast-only
• C384C192L127 cycled & C384 forecast-only
• C192C96L127 cycled & C192 forecast-only

Supported verification packages

• Fit2Obs v1.5
• METplus EMC_verif-global.v2.10.0

Setup steps

1. Quick clone and build instructions

git clone -b gfs.v16.3.20 https://github.com/NOAA-EMC/global-workflow.git
cd global-workflow/sorc
sh checkout.sh
sh build_all.sh
sh link_fv3gfs.sh emc wcoss2

Follow additional build and link instructions here: https://github.com/NOAA-EMC/global-workflow/wiki/Clone-and-build-global-workflow/08b2ec4d0956ea1936d567d9a1ac32614aedfec1

2. Run experiment setup scripts

See the following global-workflow wiki page: https://github.com/NOAA-EMC/global-workflow/wiki/Run-setup-scripts-to-generate-experiment/c85d5c2f87b298b6f0536a2fc2fb425a092c70fc

Note: the above wiki links are to older revisions of the global-workflow GitHub wiki (before updates were made for GFSv17/develop). Use wcoss2 for the machine where needed (e.g. link_fv3gfs.sh script) and ignore references to now unsupported machines (e.g. WCOSS-Dell and WCOSS-Cray).

Report any issues to @KateFriedman-NOAA

GFSv16.3.19 - place PlanetiQ RO data in monitor mode

RFC 13303 - place PlanetiQ RO data in monitor mode

On WCOSS2, upgraded the GFS to v16.3.19. The reason for this change is the following: provider PlanetiQ offers two versions of their data: basic and premium. Premium is high quality data. Basic is a degraded version of the premium data. EMC learned last week that NESDIS purchased the basic (degraded) data. This ARFC prevents the GFS from assimilating the degraded PlanetiQ GPS Radio Occultation (GPS-RO) data when it flows into the GFS. This update also increased the walltime limit for the jenkfgdas_update job from 30 min to 40 min to address runtime variation.

Implemented on September 30 from 1330Z to 1615Z.

What's Changed

GFSv16.3.19 - place PlanetiQ RO data in monitor mode by @KateFriedman-NOAA in #2968

Full Changelog: gfs.v16.3.18...gfs.v16.3.19

Supported resolutions and platforms

WCOSS2 only

• C768C384L127 cycled & C768 forecast-only
• C384C192L127 cycled & C384 forecast-only
• C192C96L127 cycled & C192 forecast-only

Supported verification packages

• Fit2Obs v1.5
• METplus EMC_verif-global.v2.10.0

Setup steps

1. Quick clone and build instructions

git clone -b gfs.v16.3.19 https://github.com/NOAA-EMC/global-workflow.git
cd global-workflow/sorc
sh checkout.sh
sh build_all.sh
sh link_fv3gfs.sh emc wcoss2

Follow additional build and link instructions here: https://github.com/NOAA-EMC/global-workflow/wiki/Clone-and-build-global-workflow/08b2ec4d0956ea1936d567d9a1ac32614aedfec1

2. Run experiment setup scripts

See the following global-workflow wiki page: https://github.com/NOAA-EMC/global-workflow/wiki/Run-setup-scripts-to-generate-experiment/c85d5c2f87b298b6f0536a2fc2fb425a092c70fc

Note: the above wiki links are to older revisions of the global-workflow GitHub wiki (before updates were made for GFSv17/develop). Use wcoss2 for the machine where needed (e.g. link_fv3gfs.sh script) and ignore references to now unsupported machines (e.g. WCOSS-Dell and WCOSS-Cray).

Report any issues to @KateFriedman-NOAA