Abstract Tropical easterly waves (TEWs) are critical drivers of the tropical North Atlantic hydroclimate, yet their future behavior remains uncertain. Using a high‐resolution, dynamically downscaled, bias‐corrected CMIP6 data set and a Lagrangian moisture tracking approach, we provide the first comprehensive, basin‐wide projections of future changes in moisture sources for TEW‐related precipitation. While our analysis finds non‐significant changes in annual TEW frequency, it reveals a distinct east‐west dipole, with drying trends in the eastern Atlantic and robust wetting in the west. However, by isolating wet waves, we reveal a statistically significant increase in basin‐wide moisture uptake and precipitation. This trend, most pronounced by the end of the century under the SSP5‐8.5 scenario, reaches scaling rates ∼8.5%/°C and ∼4.0%/°C, respectively. These findings demonstrate that future wet TEWs will become substantially wetter, indicating a shift toward more intense precipitation events, particularly in the western tropical Atlantic, including the Caribbean region.

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