https://phys.org/news/2018-05-nasa-tropical-cyclone-sagar-landfall.html

At 2:45 p.m. EDT (1945 UTC) on May 19, the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies aboard NASA's Terra satellite gathered infrared data on the land falling storm. Infrared data provides temperature information. MODIS revealed a few very powerful thunderstorms northwest of the center where cloud top temperatures were as cold as minus 80 degrees Fahrenheit (minus 62.2 Celsius). NASA research has shown that cloud tops with temperatures that cold were high in the troposphere and have the ability to generate heavy rain.

By May 21, Sagar had dissipated over land.

                                                            
                                    
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