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Weakening Hurricane Guillermo Nears Hawaiian Islands

Hurricane Guillermo was a category one hurricane with wind speeds of about 75 kts (86 mph) when the GPM core observatory satellite flew over on Sunday August 2, 2015 at 1901 UTC. Rainfall was measured by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments falling at a rate of over 61 mm (2.4 inches) per hour northeast of Guillermo's eye. GPM's DPR found rain falling at a rate of over 91 mm (3.6 inches) per hour in a feeder band spiraling into Guillermo from the southeast. GPM radar reflectivity data (Ku band) were used to show a 3-D cross section through the

Hurricane Guillermo Heads Toward Hawaii

On July 29, 2015 tropical depression Nine-E formed in the eastern Pacific Ocean well southwest of the southern tip of Baja California. The tropical depression was in an area of warm ocean water which helped the tropical cyclone blossom into tropical storm Guillermo early on July 30, 2015. Guillermo is a hurricane today and is headed over the open waters of the Pacific Ocean toward the west-northwest. In about a week Guillermo may affect the Hawaiian Islands as a tropical storm. On July 31, 2015 at 0556 UTC Guillermo was about 319 km (~590 Nautical Miles) east-southeast of Hilo, Hawaii when the

GPM Sees Tropical Cyclone Drenching Bangladesh

Bangladesh was already soaked by monsoon rainfall before recently formed tropical storm Komen started drenching the area. The GPM core observatory satellite collected data above the tropical cyclone on on July 30, 2015 at 0436 UTC ( 10:36 AM BDT). GPM's Microwave Imager (GMI) measured rain falling at the extreme rate of close to 150 mm (5.9 inches) per hour in powerful storms over the Bay Of Bengal. A 3-D view of thunderstorm tops based on radar reflectivity day from GPM's Dual-Frequency Precipitation Radar (DPR) is shown here. DPR (Ku band) radar data were used in this simulated cross section

TD08E Formation Monitored By GPM

The GPM core observatory satellite flew over forming tropical depression 08E on July 27, 2015 at 1931 UTC ( 12:31 PM PDT). Rainfall was measured by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) falling at a rate of 50 mm (almost 2 inches) per hour in storms near the center of the tropical depression. The National Hurricane Center (NHC) predicts that TD08E will not intensify very much because northwesterly vertical wind shear is retarding development. GPM's DPR instrument scan (shown in lighter shades) viewed an area east of the center of the developing tropical

Typhoon Halola Threatening Japan

Typhoon Halola is predicted by the Joint Typhoon Warning Center (JTWC) to weaken to tropical storm intensity over the next couple days while passing to the north of Okinawa, Japan. Recent predictions of Halola's track are shown overlaid in red. The GPM core observatory's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) measured rainfall as it flew directly over typhoon Halola in the western Pacific Ocean on July 23, 2015 at 1414 UTC. A simulated 3-D flyby around typhoon Halola was made from GPM Radar data (Ku Band). This animation shows that that Halola's eye wall was