GPM

Last Friday Florence was a sheared tropical storm but on Saturday vertical shear lessened and Florence started to get better organized. Today hurricane Florence is rapidly strengthening. The National Hurricane Center (NHC) predicts that Florence will be a major hurricane with maximum sustained winds peaking at 130 kts (~150 mph) on Wednesday when it is over the open Atlantic well southwest of Bermuda. The NHC predicts that Florence's winds will decrease slightly to 125 kts (144 mph) as the hurricane threatens the southeastern United States on Thursday September 13, 2018. OVERPASS 9/9/18: View

Tropical Storm Gordon became the seventh named system of the 2018 Atlantic hurricane season on Monday September 3, 2018. GORDON became more intense as it moved through the eastern Gulf Of Mexico but didn't quite make it to hurricane force before landfall. GORDON was a strong tropical storm with winds of about 70 mph (~ 61 kts) when it hit southeastern Mississippi on September 5, 2018. GORDON continued to produce rainfall as it moved inland. Weakening GORDON spawned a tornado near Picayune, Mississippi on Thursday September 6, 2018. Today, tropical depression GORDON is still responsible for

Typhoon Jebi brought flooding to Japan and NASA’s IMERG estimated rainfall over the country and the surrounding region for a one-week period. The above image shows accumulated IMERG rainfall estimates over Japan and the surrounding region for the 1-week period from August 29 to Sept. 5, 2018 show rainfall amounts on the order of 100 mm (~4 inches, shown in red) or more covering much of the main island of Honshu and Shikoku in the south. Much of the band of rain oriented east-west across central Japan was due to a frontal system that brought rain to the area before Jebi made landfall. Super

Hurricane FLORENCE became more powerful over the past few days while moving through the central Atlantic Ocean. Wind speeds increased from tropical storm force to hurricane force on Tuesday. FLORENCE's maximum sustained winds were about 85 kts (98 mph) early today making it a category two hurricane on the Saffir-Simpson Hurricane wind scale. Hurricane FLORENCE is being steered toward the northwest by the Atlantic subtropical ridge. Early next week the National Hurricane Center (NHC) predicts that hurricane FLORENCE will have moved to a location southeast of Bermuda. The GPM core observatory

UPDATE 8/31/18 View Fullscreen in STORM Event Viewer Having peaked in intensity, Typhoon Jebi is a Category 5 Super Typhoon with maximum winds estimated around 142 knots. It is beginning an eyewall replacement cycle with a gap between the outer and inner eyewalls appearing somewhat in the DPR. The storm's strength is expected to fluctuate but remain well above Category 3 for the next two days before it turns northward toward Japan. It will likely have widespread impacts on Southern Honshu in around 4 days time, an area that has already struggled with rainfall, typhoons, and intense heat this

Japan has been afflicted by several tropical cyclones and other extreme weather this summer. The Joint Typhoon Warning Center (JTWC) predicts that yet another typhoon called JEBI will be approaching the main islands of Japan early next week. Warm ocean temperatures and low vertical wind shear are providing a favorable environment for JEBI's intensification. The JTWC predicts that the typhoon will have peak sustained winds of 115 kts (132 mph) as it moves over the northern Pacific Ocean toward Japan next week. The GPM core observatory satellite passed above on August 28, 2018 at 1816 UTC when

Tropical cyclone's continue to regularly develop in the eastern Pacific Ocean. Tropical Depression Fifteen-E formed in the eastern Pacific Ocean about 1000 nautical miles (1852 km) southwest of the Baja California peninsula early on Sunday August 26, 2018. TD15E became better organized with increased banding later in the day and was upgraded by the National Hurricane Center (NHC) to tropical storm MIRIAM. The GPM core observatory satellite saw the forming tropical storm earlier on August 26, 2018 at 0223 UTC. Heavy rainfall near the center of the forming tropical cyclone was examined with the

View Fullscreen in STORM Event Viewer Battling increased vertical shear, Hurricane Lane struggles northward, down from its Category 5 peak but still featuring winds of over 110 knots. The storm has already begun impacting the Hawaiian Islands, bringing over a foot of rain to Hilo via its outer bands. Lane is expected to continue northward, approaching the island chain, before slowly veering westward as it continues to lose strength. This weakening will not diminish its likely primary impacts, which will be intense coastal erosion and damage and torrential rainfall, upwards of 30 inches in some

For the period 03Z August 21 to 16Z August 22, the IMERG real time system experienced an outage of CPC 4-km IR data. Despite the outage, IMERG EARLY and LATE products continued to be produced but users should be aware that the quality of these products during this period may be suspect and should be used judiciously. Furthermore, the products for the first few hours after the outage are less than optimal due to IMERG restart but should be acceptable for most users. Detailed Impacts: (1) The precipitation propagation vectors for the period slowly degraded after 03Z August 21 due to the missing

The summer monsoon is a regular feature this time of year in India, and it can bring heavy rains to the region. However, periodically areas of low pressure can form within the general monsoon trough and bring even more rain. Although the extreme Himalayan topography located to the north is much more well-known, another contributing factor to the heavy rains along the southwest coast of India is the Western Ghats. Though much smaller than the Himalayas, this mountain range runs parallel to the West Coast of India with many peaks over 2,000 meters (~6,500 feet). As a result, the Western Ghats