The GPM core observatory satellite had another good view of meandering tropical storm Ida located in the central Atlantic Ocean on September 24, 2015 at 0756 UTC (3:35 AM EDT). Measurements of precipitation by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments showed that Ida still contained a few embedded strong convective thunderstorms that were dropping heavy rainfall. Some rainfall was measured by GPM's Ku Band radar falling at a rate of 122 mm (4.8 inches) per hour.

GPM's 3-D radar reflectivity data (DPR Ku band) can be used to reveal the intensity of rain showers embedded within a tropical cyclone. Measurements of tropical storm Ida showed that isolated thunderstorms had storm tops reaching heights of 15km (9.3 miles). Intense rain showers within these intense storms were returning radar reflectivity values greater than 45dBZ to the satellite.

The National Hurricane Center (NHC) predicts that tropical depression Ida will rebound slightly to tropical storm intensity. Meandering tropical storm Ida is predicted to circle toward the west over the next five days while traveling over the open waters of the tropical central Atlantic.