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Content which is affiliated solely with the Global Precipitation Measurement Mission.

GPM Sees Franklin Becoming A Hurricane

GPM Sees Franklin Becoming A Hurricane
As expected, tropical storm Franklin intensified and was upgraded to hurricane Franklin in the afternoon of August 9, 2017. Franklin made landfall on the coast of eastern Mexico early this morning as a category 1 hurricane with winds of over 86 mph (75 kts). Heavy rainfall, flash floods and mudslides are expected as Franklin moves inland and weakens. The remnants of Franklin may survive the transit over Mexico's rough terrain and revive after moving into the eastern Pacific Ocean. The GPM core observatory satellite saw tropical storm Franklin with winds of about 69 mph (60 kts) as it was

Replacement GPM Gridded Text Products

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

GPM Sees Intensifying Tropical Storm Franklin

GPM Sees Intensifying Tropical Storm Franklin
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

Hilary And Irwin Interaction Shown

Hilary And Irwin Interaction Shown
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

Replacement GPM Ka/Ku L1B products (2017-07-29) for orbit 19406

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

GPM Catches a Look at a Rare Tornadic Storm Near the Chesapeake Bay

GPM Catches a Look at a Rare Tornadic Storm Near the Chesapeake Bay
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

A New Multi-dimensional View of a Hurricane

A New Multi-dimensional View of a Hurricane
Wednesday, July 26, 2017
Download in high resolution from the NASA Goddard Scientific Visualization Studio NASA researchers now can use a combination of satellite observations to re-create multi-dimensional pictures of hurricanes and other major storms in order to study complex atmospheric interactions. In this video, they applied those techniques to Hurricane Matthew. When it occurred in the fall of 2016, Matthew was the first Category 5 Atlantic hurricane in almost ten years. Its torrential rains and winds caused significant damage and loss of life as it coursed through the Caribbean and up along the southern U.S...
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GMI Monitors Earth's Newest, Giant Iceberg

GPM Sees Larsen-C Ice Shelf Separation
Monday, July 24, 2017
Click here to download the video (.mp4) On July 12, 2017, a giant iceberg broke off Antarctica and a variety of satellites have been used to study it ever since. The Global Precipitation Measurement (GPM) Microwave Imager (GMI) instrument can see the ribbon of relatively warm water and ice that separates the newly formed iceberg from the its parent mass of ice, the Larsen C ice shelf. While the iceberg is separated from the parent iceshelf by only a few kilometers, the GMI instrument is sensitive enough to detect the variation in temperature between this relatively warm gap and the colder ice...
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GPM Views Dissipating Hurricane Fernanda

GPM Views Dissipating Hurricane Fernanda
The GPM core observatory satellite had another exceptional view of hurricane Fernanda when it flew over on July 20, 2017 at 0101 UTC. GPM saw a much different hurricane than it viewed a couple days earlier. GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) radar instruments found that the dissipating hurricane only contained heavy rainfall in it's northwestern quadrant. Cooler water, dry air, and southwesterly vertical wind shear had caused Fernanda to weaken. GPM's Radar revealed that powerful convective storms in that part of the dissipating hurricane were still

GPM Examines Hurricane Fernanda's Eye

GPM Examines Hurricane Fernanda's Eye
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
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