https://phys.org/news/2018-06-imerg-southern-texas-tropical-disturbance.html

Integrated Multi satellitE Retrievals for GPM (IMERG) data were used in this space based estimate of rainfall accumulation over Texas and northern Mexico during the period from June 18 to 22, 2018. These IMERG estimates were derived from various satellite space-borne passive microwave sensors, including the GPM (Global Precipitation Measurement mission) satellite's Microwave Imager (GMI). GPM is a joint mission between NASA and the Japan Aerospace Exploration Agency, JAXA.

IMERG estimates showed extremely heavy precipitation fell over southern Texas and the northwestern Gulf of Mexico. IMERG estimates indicated that the heaviest rainfall occurred in the northwestern Gulf of Mexico where over 21 inches (533.4 mm) of rain fell. IMERG data also indicated that more than 9 inches (228.6 mm) fell in large areas from south Texas to western Louisiana. This extreme rainfall resulted in the worst Texas flooding since Hurricane Harvey in August 2017.

                                                            
                                    
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