Extreme Weather News

The National Hurricane Center (NHC) upgraded the remnants of tropical storm Harvey to a tropical Depression on August 23, 2017 at 10:00 AM CDT (1500 UTC). Harvey became better organized and was revived after moving from Mexico's Yucatan Peninsula into the Bay of Campeche. The warm waters of the Gulf of Mexico and favorable vertical wind shear promoted the regeneration of the tropical cyclone. The GPM core observatory satellite flew over the regenerating tropical cyclone on August 23, 2017 at 6:58 AM CDT (1158 UTC). Data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation

The GPM core observatory satellite flew over hurricane Kenneth when it was approaching it's peak power on August 21, 2017 at 0158 UTC. This rainfall map of hurricane Kenneth was derived from the GPM satellite's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments. GPM's GMI data enables analysis of precipitation across a swath that is 550 miles (885 km) wide. GPM's radar (Ku Band) can be used to show three-dimensional maps of precipitation structure along a narrower 152 mile (245 km) swath. GPM's radar found rain falling at a rate of over 11.3 inches (286 mm) per

The National Hurricane Center (NHC) upgraded a tropical disturbance that they were monitoring east of the Lesser Antilles to Tropical storm Harvey on August 17, 2017 at 5:00 PM EDT (2100 UTC). The GPM core observatory satellite flew over newly designated tropical storm Harvey on August 17, 2017 at 6:21 PM EDT (2221 UTC). Easterly vertical wind shear was causing the strongest convection to be pushed to the west of the tropical storm's center of circulation. GPM's Microwave Imager and Dual-Frequency Precipitation Radar (DPR) found that some of these strong convective storms were dropping very

On Thursday August 17, 2017 at 1100 AM AST (1500 UTC) the National Hurricane Center (NHC) called a stormy area of low pressure east of the Antilles "Potential Tropical Cyclone Nine". The GPM core observatory satellite flew above this area of disturbed weather earlier at 6:58 AM AST (1058 UTC). GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) data were used to examine the coverage and intensity of rainfall around the potential tropical cyclone. The center of the heaviest rainfall was located in GPM's GMI swath. Rain in that area was found by GMI to be falling at a rate

The GPM core observatory satellite provided rainfall information about hurricane Gert on August 16, 2017 at 5:37 PM EDT (2137 UTC). At that time Gert was a strong category two hurricane with maximum sustained winds of about 93.5 mph (85 kts). Data from GPM's Microwave Imager (GMI) instrument showed that rain was still falling at a rate of more than 2.94 inches (74.7 mm) per hour in a powerful band of storms spiraling around Gert's eastern side. With that pass GPM's Dual-Frequency Precipitation Radar (DPR) had a limited encounter with hurricane Gert. DPR did find that rain in storms on the