25 October 2017 At about 4:57 UTC on 9 October 2017 the NOAA-19 MHS precipitation estimates started displaying artifacts, which was eventually traced to the instrument going into safe mode without shutting down data delivery. Since this happened over the long Columbus Day weekend, it took until 01:47 UTC on 10 October 2017 to shut down the data stream, so the Early and Late IMERG have these (very obvious) artifacts for almost 24 hours. No reprocessing is planned. The sensor resumed operations at 17:31:08 UTC on 16 October 2017, but because the basis for the safe mode was unknown, GPM chose to

The GPM core observatory satellite passed above recently formed tropical storm Saola on October 24, 2017 at 0210 UTC. Tropical storm Saola was located west of Guam and was moving toward the northwest. Very heavy rainfall was measured by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments in powerful convective storms to the southwest of Saola's center. GPM's radar (DPR Ku band) found that some storms in this cluster were dropping rain at a rate of greater than 252 mm (9.92 inches) per hour. This 3-D view of the powerful storms southwest of Paola's center of

Typhoon Lan caused flooding, landslides and the death of at least seven people when it hit Japan early Monday morning. The powerful typhoon was accompanied by high winds and extremely heavy rainfall. Rain totals of 800 mm (31.5 inches) were reported in parts of south central Honshu. Wind speeds of over 106 kts (121.9 mph) were also reported. On October 22, 2017 at 0556 UTC the "core" satellite of the Global Precipitation Measurement (GPM) mission had an excellent view of Lan as the typhoon was approaching Japan. Data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation

PPS received replacement GPM Ka L1B (20378) and Ka/Ku L1B (20379) products from JAXA and will reprocess the affected data including Level 2 and 3 data. If you have already obtained products with orbit# 20378-20379 from our archive or through a standing order, etc., please discard and use the replacement products. PPS has replaced the following GPM Ka/Ku L1B data with empty granules: GPMCOR_KAR_1709291217_1349_020378_1BS_DAB_05A.h5 GPMCOR_KAR_1709291349_1522_020379_1BS_DAB_05A.h5 GPMCOR_KUR_1709291349_1522_020379_1BS_DUB_05A.h5 PPS has reprocessed the affected L2-3 downstream products. If you