Evolution of the NASA Soil Moisture Active Passive (SMAP) sea surface salinity (SSS) response to the 2018 Atlantic hurricane season. It is common to observe patches of 1) salinity freshening due to enhanced precipitation and 2) salinity increase due to wind stress-generated vertical mixing, wherein increased salinity from a mid-level maximum is brought to the surface. The two effects are clearly observed along the tracks of the 2018 Atlantic tropical cyclones. (SMAP SSS DOI: 10.5067/SMP42-3TPCS).