https://phys.org/news/2018-11-nasa-gpm-weaker-tropical-storm.html

The GPM core observatory satellite had an excellent view of Tropical Storm Yutu on October 31, 2018 at 0210 UTC (Oct. 30 at 10:10 p.m. EDT) as it passed directly above the center of circulation. At the time GPM passed overhead, Tropical Storm Yutu had maximum sustained winds of about 55 knots (63 mph) and was moving over the South China Sea. A rainfall analysis based on GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments showed that very little rainfall was occurring near the tropical storm's low level center of circulation. Extremely heavy rainfall was found by the satellite's radar in powerful storms located northwest and southeast of Yutu's center of circulation. GPM's radar (DPR Ku Band) measured precipitation in those areas falling at the exceptional rate of greater than 183 mm (7.2 inches) per hour.

At NASA's Goddard Space Flight Center in Greenbelt, Md. a 3-D view of tropical storm Yutu was constructed using data from GPM's radar (DPR Ku Band). The image, looking from the south showed the vertical structure of precipitation within the tropical storm. Those data revealed that storm top heights were reaching altitudes above 15.5 km (9.6 miles) in the tallest convective storms that were located well to the northwest of Yutu's center of circulation. GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, JAXA.