NASA's IMERG Shows Cindy's Extreme Rainfall

Tropical storm Cindy was downgraded to a tropical depression after moving onshore near the Texas and Louisiana Border on Thursday June 22, 2017. Flooding was reported along the the Gulf Coast even before Cindy made landfall. The rainfall around tropical storm Cindy was asymmetrical. The majority of heavy rainfall with the tropical cyclone was located east of Cindy's center in the states along the Gulf Coast from Louisiana through the Florida Panhandle. The tropical depression continued to spread heavy rain and occasionally severe thunderstorms after it came ashore. Severe thunderstorms spawned

Extreme Florida Rainfall Examined With GPM

Extremely heavy rain has recently fallen over Florida. Over 19 inches (482 mm) of rain has fallen in southeastern Florida during the past seven days. Record rainfall has been reported in Fort Lauderdale and West Palm. This extreme rainfall has led to flooding and flight cancellations. The GPM core observatory satellite flew above southern Florida on Wednesday June 7, 2017 at 6:06 AM EDT ( 1006 UTC). Data collected by GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments revealed the intensity of rainfall within powerful storms that were drenching southern

Tornado Spawning Storms Examined By GPM Satellite

On Wednesday May 24, 2017 severe weather affected a large area of the eastern United States. Tornadoes were reported in Florida, Georgia, South Carolina, North Carolina and Ohio. The GPM core observatory satellite flew above a line of tornado spawning storms that were moving through the Florida panhandle on May 24, 2017 at 10:26 AM EDT ( 1426 UTC). GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments collected data showing that very heavy downpours were accompanying some of these storms. The violent storms moving through the Southeast were strong but GPM's

Deadly Hurricane Matthew's Total Rainfall

Hurricane Matthew devastated western Haiti and killed over 1,000 people. Matthew also took the lives of at least 37 deaths in the United States with 18 deaths occurring in the state of North Carolina. Flooding is still widespread in North Carolina. Some rivers in North Carolina such as the Tar and the Neuse are still rising. This rainfall analysis was accomplished using data from NASA's Integrated Multi-satelliE Retrievals for GPM (IMERG). IMERG is a unified U.S. algorithm that provides a multi-satellite precipitation product. IMERG is run twice in near-real time with the “Early” multi
NASA Sees Hermine's Twin Towers
In order for Hermine or any other tropical depression, to intensify there must be a pathway for heat energy from the ocean surface to enter the atmosphere. For Hermine, the conduit may have been one of the two "hot towers" that the Global Precipitation Measurement mission or GPM core satellite observed on Aug. 31 at 4:09 p.m. EDT (2009 UTC). GPM's DPR instrument saw strong storms near the center of Tropical Depression Hermine on the evening of Aug. 31. Two "hot towers" are seen to the right of the low pressure center (south and east of the center), which are labeled "T1" and "T2." The "L"...

Intensifying Tropical Depression Nine Checked By GPM

The National Hurricane Center (NHC) expects Tropical Depression Nine to intensify over the next day or so. Vertical wind shear is predicted to be low and the tropical depression is moving over warmer water. Both of these factors will provide fuel for intensification. The GPM core observatory satellite scanned the tropical depression on August 31, 2016 at 2:46 AM EDT (0646 UTC). GPM's Microwave Imager (GMI) and Dual-Frequency Precipitation Radar (DPR) instruments saw heavy rainfall in strong convective storms in the Gulf Of Mexico northwest of Cuba. GPM's DPR found that some of these intense

Tropical Depression Nine Forms

The frequency of tropical cyclone formation has definitely increased in the Atlantic Ocean basin. A tropical wave that the National Hurricane Center (NHC) had been monitoring for development since it left the African coast almost two weeks ago was upgraded to Tropical Depression Nine (TD09L) on August 28, 2016. The low pressure became a little better organized after moving into the Florida Strait and that led to the upgrade. The GPM core observatory satellite passed above the still relatively poorly organized tropical depression on August 29, 2016 at 2:56 AM EDT (0656 UTC). Maximum sustained

GPM Sees Tropical Storm Danielle Forming

A tropical depression (TD4) in the southwestern Gulf of Mexico was designated tropical storm Danielle by the National Hurricane Center (NHC) this morning at 1500 UTC (1000 AM CDT). Danielle is the earliest fourth-named tropical storm to form in the Atlantic Basin. Danielle's life as a tropical storm is predicted to be short because it is moving almost due west and is predicted to move over the east coast of Mexico later today or tonight. Heavy rainfall is expected to cause flash floods and mudslides over eastern Mexico over the next few days. The GPM core observatory satellite flew above the

TRMM Sees Arthur Intensifying

Tropical storm Arthur intensified and was upgraded to a hurricane by the National Hurricane Center (NHC) early this morning. The TRMM satellite flew above the intensifying tropical storm on July 2, 2014 at 2156 UTC (7:56 PM EDT). At that time TRMM found that Arthur hadn't formed an eye but had heavy rain near the center of a well defined circulation. Rainfall derived from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) is shown overlaid on a GOES-EAST Visible/Infrared image collected at the same time as the TRMM pass.

Extreme Rainfall Over Florida Panhandle

The TRMM satellite had a good view of recent extreme rainfall over the Florida panhandle that caused extensive flooding. TRMM Multi-satellite Precipitation Analysis (TMPA) data were used at NASA Goddard Space Flight Center to estimate total precipitation (mm) for the week from April 24 to May 1,2014. Rainfall totals of up to 620 mm (about 25 inches) were analyzed in the Pensacola, Florida area. The continuous "training" of heavy rainfall into the area was viewed several times by the TRMM satellite. The TRMM satellite flew above the area on April 30, 2014 at 0128 UTC (9:28 PM EDT April 29, 2014