Severe weather events such as hurricanes can have disproportionately high impact on coastal carbon biogeochemistry and transport but are generally not well understood due to the transient nature of such events. In this study, we investigate the impact of Hurricane Ian on carbon chemistry in Western Florida Shelf (WFS) following landfall on September 28, 2022, near Cayo Costa, Florida. Post hurricane satellite images indicate widespread resuspension and/or terrestrial run-off along the WFS coastline, which will likely impact the carbon chemistry of the shelf waters. The objective of this study is to understand the spatial and temporal changes in dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), total alkalinity (TA), and organic alkalinity (OrgAlk) in WFS immediately after Hurricane Ian and in the subsequent months. Surface water samples were collected for the abovementioned parameters from more than 30 stations in WFS in October 2022 (3 weeks after Ian made landfall), January 2023, and March 2023 along with other ancillary water quality parameters. The DIC and TA varied from 1840 to 2302 µmol/kg and from 1981 to 2641 µmol/kg, respectively, for these three seasons with no significant temporal differences. However, OrgAlk was found to be highest in October 2022, ranging from 84 to 249 µmol/kg, suggesting increased contribution from DOC sources.