 The next day, its forward motion had shifted to a slow north-northwest track, and with its convection continuing to organize around the low, the National Hurricane Center (NHC) remarked on the potential for tropical cyclogenesis.Early on July 21, its thunderstorm activity organized enough for the NHC to classify it as Tropical Depression Six-E, located to the southwest of Acapulco.Upon becoming a tropical cyclone, the depression existed in an area of weak steering currents, though a general motion to the north-northwest was influenced by a large subtropical ridge over the southwest United States.