Extreme Weather News

The GPM core observatory satellite had an excellent view of hurricane Fernanda on July 18, 2017 at 0110 UTC. Hurricane Fernanda had weakened from it's peak wind speed of 125 kts (143.75 mph) attained on July 15, 2017 but still had maximum sustained wind speeds of about 95 kts (109 mph). This meant that Fernanda was still a powerful category two hurricane on the Saffir-Simpson hurricane wind scale. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) data showed the location of intense rainfall circling around Fernanda's eye. Measurements by GPM's Radar (DPR Ku band) showed

On Monday July 17, 2017 at 5:00 PM EDT a tropical disturbance in the Atlantic Ocean was upgraded to tropical storm Don, the fourth Atlantic Tropical storm of 2017. The GPM core observatory satellite flew above the forming tropical storm much earlier in the same day at 3:17 AM EDT (0717 UTC). GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments collected data that were used to evaluate precipitation within the forming tropical cyclone. GPM's Radar data swath (shown in lighter shades) covered an area to the west of the greatest amount of rainfall. GPM's radar

Heavy rain has resulted in significant flooding in the Midwest during the past week. Water flowing into the Fox River in northeastern Illinois caused serious flooding in that area. Central Indiana and central Ohio have also had remarkable flooding. NASA's Integrated Multi-satelliE Retrievals for GPM (IMERG) data were used to show estimates of rainfall accumulation in the Midwest during the period from July 7-14, 2017. This analysis indicates that parts of Wisconsin, Illinois, Indiana and Ohio had the highest rainfall totals during the period with over 6 inches (152.4 mm) of rain being seen in

A tropical cyclone may be forming in the northwestern Pacific Ocean near Chichi-Jima, Japan. The GPM core observatory satellite flew directly above very strong convective storms in this potential tropical cyclone on July 13, 2017 at 0834 UTC. Rainfall in the area was analyzed using data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments. One area of extremely intense storms was measured by GPM's radar (DPR Ku Band) dropping rain at a rate of over 198mm (7.8 inches) per hour. Data from the GPM satellite's radar (DPR Ku band) was also used to

The GPM core observatory satellite had another excellent view of Eastern Pacific tropical storm Eugene on July 11, 2017 at 0231 UTC. Eugene was weakening as it traveled toward the northwest over progressively cooler waters. The only remaining strong convective activity was seen in Eugene's northwestern quadrant. GPM's Dual-Frequency Precipitation Radar (DPR) data revealed that some of these convective storms northwest of Eugene's center of circulation were dropping rain at a rate of more than 70 mm (2.8 inches) per hour. A 3-D view of the dissipating tropical storm was developed using GPM's