For V05 we produced a daily gridded text product for precipitation data from the core satellite and from the partner constellation imagers. We also produced a monthly rollup of these gridded text products. They were all designated with the product version V05A. If you downloaded these products, we regret to inform you that we found an error in the calculation of convection rate and frozen rate. While the mean precipitation rate values were correct in V05A, convective and frozen rates were erroneous. We have made the necessary changes to the code that produces these products. After extensive

The GPM core observatory satellite had an informative pass over Tropical storm Franklin on August 9, 2017 at 0302 UTC. The intensifying tropical storm had moved from Mexico's Yucatan Peninsula into the southwestern Gulf Of Mexico's Bay of Campeche. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) data showed that Franklin contained a few heavy bands of convective rainfall. GPM's DPR found rain falling at a rate of over rain 2.4 inches (62 mm) per hour in bands of intense storms moving around the southwestern side of the storm. This 3-D view of tropical storm Franklin

Tropical cyclone development in the eastern Pacific Ocean has been occurring at a slightly above normal pace this year. Hurricanes Hilary and Irwin were the two most recently named tropical cyclones to form in this area. These two were a little unusual because they traveled so close to each other that an interaction occurred that radically changed the direction and speed of tropical storm Irwin's movement. The Fujiwara effect happens when cyclones move close of one another. Their centers will sometimes begin orbiting cyclonically (in the northern hemisphere) about a point between the two

PPS received new GPM Ka/Ku L1B products from JAXA and reprocessed the affected data including Level 2 and 3 daily products from 2017-07-29 00:34:47 -> 2017-07-29 02:07:20. If you have obtained any of these files from our archive or through a Standing Order, etc., please discard these and use the replacement products. The following files and corresponding browse products will be replaced GPMCOR_KAR_1707290034_0207_019406_1BS_DAB_05A.h5 GPMCOR_KUR_1707290034_0207_019406_1BS_DUB_05A.h5 2A.GPM.Ka.V7-20170308.20170729-S003447-E020720.019406.V05A.HDF5 2A.GPM.Ku.V7-20170308.20170729-S003447-E020720

Tornadic storms in Maryland are rare to begin with, let alone in the middle of the night. However, about an hour after midnight in the early morning hours of Monday April 24th at around 1:00 am local time, a severe thunderstorm, which was located at the southern end of a mass of storms and which had just dumped heavy rains over the Washington, DC area, began to cross the Chesapeake Bay near Annapolis, Maryland heading eastward. It is quite common for storms to weaken as they cross the cooler waters of the Bay, but water temperatures are now rather warm, over 80F, which allowed the storm to