TRMM Sees Powerful Tropical Cyclone Ita Approaching Queensland, Australia

Tropical cyclone ITA, located in the Coral Sea northeast of Australia, continues to intensify while heading toward the northeastern coast of Australia. ITA was seen twice by the TRMM satellite on April 9, 2014. The tropical cyclone's wind speeds had increased from 65kts (about 75 mph) with the first pass at 0536 UTC to 80kts (about 92 mph) when viewed again at 1528 UTC. ITA is predicted to continue becoming more powerful and have sustained winds of 135 kts (about 188 mph) before hitting Australia's Queensland coast tomorrow. TRMM's Precipitation Radar (PR) instrument sliced through ITA's eye

Tropical Cyclone Ita Intensifies

The TRMM satellite flew above intensifying tropical cyclone ITA in the Coral Sea near the southeastern tip of Papua New Guinea on April 9, 2014 at 0536 UTC. The tropical cyclone had developed a large but well defined eye and had sustained winds estimated at 65kts (about 75mph). Rainfall derived from TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) data was used in the analysis shown here. TRMM PR data unveiled rain falling at a rate of over 99mm/hr (about 3.9 inches) within ITA's feeder bands over the coast of southeastern Papua New Guinea. TRMM PR found that tall thunderstorms in

TRMM Sees Severe Weather

The TRMM satellite flew over the southeastern United States on April 7, 2014 at 1300 UTC (9:00 AM EDT) when a line of intense thunderstorms was moving through the area. Tornado watches were in effect over much of the area. A possible tornado, associated with the same weather system, caused destruction and injuries when it moved through southern Mississippi earlier at about 2 AM EDT. TRMM's Precipitation Radar (PR) data revealed that rain was falling at a rate of over 130mm/hr (about 5.1 inches) in one severe thunderstorm near the Alabama and Florida panhandle border. A radar reflectivity value

GPM in Final Orbit, DPR Calibration Continues

The Global Precipitation Measurement mission's Core Observatory is performing normally. On April 2, the GPM Core Observatory fired its thrusters for an 80-second delta-V burn that accelerated the spacecraft and circularized its orbit. The Core Observatory is now flying in its final orbit, 253 miles (407 kilometers) above Earth's surface. Calibration of the Dual-frequency Precipitation Radar (DPR) and GPM Microwave Imager (GMI) continued. On March 30 and 31, additional DPR external calibrations took place using the Active Radar Calibration site in Tsukuba, Japan. For the March 31 calibration

Tropical Cyclone Hellen's Lively Remnants

Powerful tropical cyclone Hellen rapidly weakened after hitting northwestern Madagascar but Hellen's remnants have recently started to show signs of life. The TRMM satellite flew over these remnants in the Mozambique channel on April 2, 2014 at 0143 UTC. A rainfall analysis using TRMM's Microwave Imager (TMI) and Precipitation Radar (PR) instruments found that some strong convective thunderstorms had developed in the area. It was revealed by TRMM PR data that rain was falling at a rate of over 75 mm/hr (almost 3 inches) in a few locations.