GPM Catches Heavy Rainfall Over Washington D C

GPM Catches Heavy Rainfall Over Washington D. C. experienced extreme rainfall the morning of July 8 th, 2019 when a cluster of slow-moving thunderstorms moving through the area tapped into a very moist airmass to produce extremely heavy rains, which resulted in flash flooding throughout the region. The storms were triggered by a nearby frontal boundary. The GPM CO passed over this storm system at 8: 51 am ET, with its DPR measuring rainfall rates in excess of 100 mm/hr in some areas. N N GPM's GMI/ DPR provides a view of the storm’s precipitation over D. C. on 07/08/2019. Reagan National Airport (DCA) also reported receiving 80 mm of rainfall in one hour, corroborating the high rates detected by GPM. The National Weather Service issued a rare Flash Flood Emergency in the morning, and police urged people to stay off the roads due to numerous closures. The GPM’s DPR measured rainfall rates in excess of 100 mm/hr in some areas. Images produced by Jacob Reed (Telophase/NASA GSFC) Caption by Jacob Reed (Telophase/NASA GSFC), Stephen Lang (SSAI/NASA GSFC), Joe Munchak (NASA GSFC), and Andrea Portier (SSAI/NASA GSFC) *The Washington Post and Flood. List (funded by Copernicus, the European system for Earth monitoring) used GPM imagery to inform the public about rainfall and flooding impact within the D. C. metro region.