GPM

Effective approximately 04:00 UTC, 9 May 2017 the near-realtime swath products (GMI, partner constellation, radar and combined) will be upgraded from V04 to V05. During the conversion the latency of near-realtime will be affected as all the new code and support files need to be modified to carry out this upgrade. We hope this will take no more than 2 hours but can not guarantee it might not be longer. We will start with the upgrade of radar products, followed as quickly as possible by GMI and then the partner constellation products. We are starting with the radar as this requires close

Tropical Cyclone Donna formed in the South Pacific Ocean northeast of Vanuatu On May 2, 2017 at 1800 UTC. A few hours earlier at 1521 UTC the GPM core observatory satellite passed above that area. GPM's Microwave Imager (GMI) instrument provided a clear view of the rainfall associated with the forming tropical cyclone. GMI revealed that an intense rain band was wrapping into the center of the forming tropical cyclone from the northern side. GMI data indicated that precipitation in one of these intense rain bands was falling at a rate of over 53 mm (~2 inches) per hour. GPM's Dual-Frequency

The Precipitation Processing System has begun the transition to GPM Version 5 products. The satellite observations made in April 2017 will be the last observations to be included in Version 4 of the GPM data products, with one exception. Starting with observations made in May 2017, PPS will generate Version 5 GPM data products, again with one exception. The exception in both cases is that the PPS Realtime system will continue to generate the Version 4 Early and Late IMERG data products. Version 4 data products have been removed from the STORM data ordering system ( https://storm.pps.eosdis

Tornadoes have accompanied severe weather over the United States almost daily during the past week. Severe storms spawned tornadoes from Texas and Oklahoma eastward through Mississippi. Upper Midwest states such Illinois, Indiana and Kentucky were also visited by tornadoes. Extreme rainfall caused deadly flooding in Missouri. More than a dozen people in the Midwest and South have been reported killed by tornadoes or flooding. The same weather system is spreading severe storms through East and Northeastern states today. NASA's Integrated Multi-satelliE Retrievals for GPM (IMERG) data were used

Tropical cyclone Francis formed north of Melville Island, Australia on April 27, 2017. Francis has been gradually intensifying while moving south-southwestward through the Timor Sea. Francis had maximum sustained winds estimated at 50 kts (57.5 mph) when the GPM core Observatory flew over on April 27, 2017 at 1936 UTC. The rainfall analysis shown here used data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments. DPR data indicated that strong convective storms near the center of the tropical storm were dropping rain at a rate of over 70 mm (2.8

Tropical Depression 03W formed in the Pacific Ocean west of Guam on April 24, 2017. The GPM core observatory satellite had an excellent view of TD03W when it flew over on April 14, 2017 at 1901 UTC. The GPM satellite found that the newly formed tropical depression contained some very powerful convective storms. Intense storms in the middle of the organizing convective cluster were dropping precipitation at extreme rates. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments unveiled tall convective storm towers on the eastern side of this cluster of storms that

Tropical storms are quite rare in the Atlantic at this time of the year, which is why the formation of Tropical Storm Arlene in the north Central Atlantic yesterday, Thursday April 20th at 5:00 pm EDT, was so unusual. The National Hurricane Center (NHC) noted that Arlene became only the 2nd tropical storm to form in the Atlantic during the month of April in the entire satellite era, the other being Tropical Storm Ana back in 2003. GPM captured this timely image of Arlene just after the NHC officially designated it to be a tropical storm. The image was taken at 21:56 UTC (5:56 pm EDT) on

A low pressure area in the Atlantic Ocean, located southwest of the Azores was designated as Subtropical Depression One on April 19 as NASA examined its rainfall. By April 20 it had become the Atlantic's first tropical depression. Just as the subtropical depression was forming in the North Atlantic Ocean on April 19 at 11 a.m. EDT (1500 UTC) the Global Precipitation Measurement Mission or GPM core observatory satellite flew directly over it and identified areas where rainfall was heaviest in the system. Data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR)

Tropical Storm Maarutha became the first tropical cyclone of 2017 in the Bay of Bengal when it formed on April 15, 2017. Maarutha intensified slightly as it moved northeastward toward Burma (Myanmar). Maarutha reached it's maximum sustained wind speed of 45 kts (52 mph) over the open waters of the Bay Of Bengal. The GPM core observatory satellite had a good view of the forming tropical cyclone on April 14, 2017 at 0121 UTC when it was in the Bay Of Bengal west of the Andaman Islands. GPM had another excellent view just before the organizing tropical cyclone was designated tropical storm

Two extra-tropical cyclones recently dropped very heavy rain over New Zealand. Tropical cyclone Debbie dumped extreme amounts of rain over the northeastern coast of Australia when it hit the Queensland coast on March 28, 2017. After drenching northeastern Australia Extra-tropical Cyclone Debbie transported a river of water over New Zealand last week. Debbie's remnants dropped heavy rainfall that caused widespread flooding near the Bay of Plenty on New Zealand's northeastern coast. Thousands of residents needed to be evacuated with extra-tropical cyclone Debbie. This week extra-tropical cyclone