To cite package ‘synopR’ in publications use:

  Elias E (2026). _synopR: Fast Decoding of SYNOP (Surface Synoptic
  Observations) Meteorological Messages_. R package version 1.0.0,
  <https://github.com/ezequiel1593/synopr>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {synopR: Fast Decoding of SYNOP (Surface Synoptic Observations)
Meteorological Messages},
    author = {Ezequiel Elias},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://github.com/ezequiel1593/synopr},
  }