https://phys.org/news/2018-06-gpm-satellite-probes-storms-southern.html > On June 19, 2018 at 3:37 p.m. CDT (2037 UTC) the GPM core observatory satellite passed over the western Gulf of Mexico. This GPM pass revealed extreme rainfall that was being produced in the northwestern Gulf of Mexico. GPM's Microwave Imager (GMI) and Dual Frequency Precipitation Radar (DPR) instruments probed powerful storms that were dropping rain at a rate of 3.5 inches (88 mm) per hour. > The GPM satellite's radar data (DPR Ku Band) collected data that were used here to show 3-D cross-sections of precipitation within storms located in the Gulf of Mexico east of Texas. These DPR probes revealed that some of these powerful storms were reaching altitudes above 7.75 miles (12.5 km). A few downpours were returning radar reflectivity values greater than 58 dBZ to the GPM satellite.