It is found that the assimilation of enhanced AMVs can improve the HWRF track and intensity forecasts of Gonzalo and Joaquin during their intensity change phases. The degree of data impact depends on the DA configuration used. Overall, assimilation of enhanced AMVs in the innermost HWRF domains (hurricane core region) outperforms other DA configurations, both with and without VI, as it results in better track and intensity forecasts. Compared to the experiment with VI, assimilation of enhanced AMVs without VI reveals more notable data impact on the hurricane forecasts. Even in the configuration with VI, assimilation of enhanced AMVs in the inner-core region can mitigate the unrealistic vortex weakening in the simulation of Hurricane Gonzalo by removing unrealistic outflow structure and unfavorable thermodynamic conditions, thus leading to improved intensity forecasts.