Issues

• Switch file included in ww3_ounf NetCDF output is not representative of forecast switch file

  bug
  NOAA-EMC/WW3#1634 · Filter by author JessicaMeixner-NOAA opened on Sep 29, 2026

• Intermittent error in mww3_test_05/work_ST6_PR2_UQ_OMP on Cray GNU

  bug
  NOAA-EMC/WW3#1628 · Filter by author ukmo-daisybrown opened on Sep 9, 2026

• Intermittent compiler OOM failures during matrix regression tests on Ursa

  bug
  NOAA-EMC/WW3#1625 · Filter by author mingchen-NOAA opened on Sep 3, 2026
  2

• ww3_shel with namelist and homogeneous wind field

  bug
  NOAA-EMC/WW3#1607 · Filter by author mickaelaccensi opened on Jun 22, 2026

• handle NaN as fillvalue for forcing fields

  bug
  NOAA-EMC/WW3#1586 · Filter by author mickaelaccensi opened on Mar 27, 2026
  

• GPU parallelization of DIA (W3SNL1) — up to 16.8x speedup (simplified indexing, upper bound)

  NOAA-EMC/WW3#1583 · Filter by author consigcody94 opened on Mar 26, 2026
  3

• Regtest ww3_tp2.14 unexpected differences from matrix comparison

  bug
  NOAA-EMC/WW3#1581 · Filter by author mingchen-NOAA opened on Mar 17, 2026
  1

• Under switch RTD, the two-way nesting is corrupted when running ww3_multi

  bug
  NOAA-EMC/WW3#1579 · Filter by author CarstenHansen opened on Mar 10, 2026
  1

• GNU Regression Tests Failing on Hercules

  bug
  Bug

  NOAA-EMC/WW3#1573 · Filter by author mingchen-NOAA opened on Feb 24, 2026

• User manual new version

  documentation
  NOAA-EMC/WW3#1569 · Filter by author AmbulansAdSomnium opened on Feb 11, 2026
  3

• compile regtest error: file w3iopomd.o not found

  bug
  NOAA-EMC/WW3#1554 · Filter by author ghost opened on Jan 1, 2026

• add unresolved island feature to b4b tests w/water level & boundary conditions

  enhancement
  NOAA-EMC/WW3#1552 · Filter by author JessicaMeixner-NOAA opened on Dec 18, 2025

• MISC namelist for unstructured grid

  enhancement
  NOAA-EMC/WW3#1527 · Filter by author erizzi11 opened on Nov 10, 2025

• True false statement not correctly interpreted with gfortran

  bug
  NOAA-EMC/WW3#1526 · Filter by author mickaelaccensi opened on Nov 7, 2025
  

• NRQPO not correctly initialized

  bug
  NOAA-EMC/WW3#1518 · Filter by author mickaelaccensi opened on Oct 28, 2025
  

• GSU not precise anough to find nearest point for active boundaries in high resolution grid

  bug
  NOAA-EMC/WW3#1516 · Filter by author mickaelaccensi opened on Oct 23, 2025
  

• test on input file

  bug
  NOAA-EMC/WW3#1492 · Filter by author mickaelaccensi opened on Aug 28, 2025
  

• Unexpected diff with SS 1.9.2 Ursa GNU

  bug
  NOAA-EMC/WW3#1471 · Filter by author JessicaMeixner-NOAA opened on Jul 22, 2025
  5

• Unexpected differences on Hercules GNU after upgrade to Spack-Stack 1.9.2

  bug
  NOAA-EMC/WW3#1467 · Filter by author mingchen-NOAA opened on Jul 21, 2025
  1

• Out of memory error on Hera GNU after upgrade to Spack-Stack 1.9.2

  bug
  NOAA-EMC/WW3#1466 · Filter by author mingchen-NOAA opened on Jul 21, 2025
  

• WW3 ftp data not available(ww3_from_ftp.v6.07.tar.gz)

  bug
  NOAA-EMC/WW3#1460 · Filter by author Crystal5172117 opened on Jul 9, 2025
  2

• when lcalc=false, cgsig(ip) in PDLIB_EXPLICIT_BLOCK is undefined

  bug
  NOAA-EMC/WW3#1453 · Filter by author DeniseWorthen opened on Jun 18, 2025
  2

• dev/ufs-weather-model: Allow HAFS to read a NetCDF restart file when runtype=intial

  enhancement
  NOAA-EMC/WW3#1449 · Filter by author JessicaMeixner-NOAA opened on Jun 3, 2025

• Missing OMP statements in w3updatmd

  bug
  NOAA-EMC/WW3#1444 · Filter by author JessicaMeixner-NOAA opened on May 27, 2025
  2

• Mean squared slopes (MSS[X,Y]): discrepancy between ww3_ounf output variable description and ww3_shel.inp description

  documentation
  NOAA-EMC/WW3#1429 · Filter by author kestonsmith-noaa opened on May 13, 2025
  1