Shortly after, a burst of heavy convective thunderstorms developed over the ill-defined low-level center, and as organization improved, the system was upgraded to  Tropical Storm Jerry around midnight on October 7. Located within an environment of weak vertical wind shear, Jerry strengthened further, with its maximum sustained winds reaching their estimated peak of around  as Jerry approached the Windward Islands later on October 7.
Shortly afterward, a cluster of intense convective thunderstorms emerged over the vague low-level center, and as organization improved, the system was classified as Tropical Storm Jerry around midnight on October 7. Positioned within an environment with minimal vertical wind shear, Jerry intensified further, with its peak maximum sustained winds approaching those estimated for Jerry as it neared the Windward Islands later that same day.