NASA's Tropical Rainfall Measuring Mission or TRMM satellite passed directly above newly transformed Tropical Storm Melissa's center of circulation on November 20, 2013 at 11:21 UTC/6:21 a.m. EST. TRMM's Precipitation Radar (PR) instrument found that rain was falling at a maximum rate of 55 mm/~2.2 inches per hour in an area just to the southeast of Melissa's center of circulation.
NASA's TRMM satellite saw Melissa on Nov. 20 after it became tropical. The tallest thunderstorms, over 8 miles high, were located northwest of the center.
Credit: SSAI/NASA, Hal Pierce
TRMM Precipitation Radar data were also used to create a 3-D image that showed Melissa's structure. The TRMM data revealed that the tallest towers, reaching heights of over 13km/~8 miles, were located in a band of rainfall to the northwest of Melissa's center. The strongest intensity radar echo of over 49dBZ was returned from an area of heavy convective storms near Melissa's center. This heavy convection near the center signaled Melissa's transition from a subtropical storm to a tropical storm.
At 1500 UTC/10 a.m. EST, Melissa's maximum sustained winds were near 60 mph/95 kph. Melissa is a good sized storm, as tropical storm force winds extend outward up to 205 miles/335 km from the center.
The National Hurricane Center expects little change in strength over the next 24 hours, but does expect Melissa to lose her tropical characteristics thereafter, so her life as a tropical storm will be quite short.
Melissa's center was located near latitude 35.6 north and longitude 47.7 west, about 1,155 miles/1,860 km west of the Azores. The Azores is a group of nine volcanic islands in the North Atlantic Ocean. The island group is about 1,500 km/930 miles west of Lisbon, Portugal.
Melissa is moving toward the east-northeast near 30 mph/48 kph and this general motion is expected to continue during the next couple of days. The estimated minimum central pressure is 988 millibars.
Although Melissa is far from land, the storm is still generating large ocean swells, rip currents, and dangerous surf in Bermuda, parts of the Northern Leeward Islands, Puerto Rico and Hispaniola today.
The National Hurricane Center expects Melissa to continue moving northeast and pass north of the Azores.
Rob Gutro | EurekAlert!
Monitoring lava lake levels in Congo volcano
16.05.2018 | Seismological Society of America
Ice stream draining Greenland Ice Sheet sensitive to changes over past 45,000 years
14.05.2018 | Oregon State University
So-called quantum many-body scars allow quantum systems to stay out of equilibrium much longer, explaining experiment | Study published in Nature Physics
Recently, researchers from Harvard and MIT succeeded in trapping a record 53 atoms and individually controlling their quantum state, realizing what is called a...
The historic first detection of gravitational waves from colliding black holes far outside our galaxy opened a new window to understanding the universe. A...
A team led by Austrian experimental physicist Rainer Blatt has succeeded in characterizing the quantum entanglement of two spatially separated atoms by observing their light emission. This fundamental demonstration could lead to the development of highly sensitive optical gradiometers for the precise measurement of the gravitational field or the earth's magnetic field.
The age of quantum technology has long been heralded. Decades of research into the quantum world have led to the development of methods that make it possible...
Cardiovascular tissue engineering aims to treat heart disease with prostheses that grow and regenerate. Now, researchers from the University of Zurich, the Technical University Eindhoven and the Charité Berlin have successfully implanted regenerative heart valves, designed with the aid of computer simulations, into sheep for the first time.
Producing living tissue or organs based on human cells is one of the main research fields in regenerative medicine. Tissue engineering, which involves growing...
A team of scientists of the Max Planck Institute for the Structure and Dynamics of Matter (MPSD) at the Center for Free-Electron Laser Science in Hamburg investigated optically-induced superconductivity in the alkali-doped fulleride K3C60under high external pressures. This study allowed, on one hand, to uniquely assess the nature of the transient state as a superconducting phase. In addition, it unveiled the possibility to induce superconductivity in K3C60 at temperatures far above the -170 degrees Celsius hypothesized previously, and rather all the way to room temperature. The paper by Cantaluppi et al has been published in Nature Physics.
Unlike ordinary metals, superconductors have the unique capability of transporting electrical currents without any loss. Nowadays, their technological...
02.05.2018 | Event News
13.04.2018 | Event News
12.04.2018 | Event News
18.05.2018 | Power and Electrical Engineering
18.05.2018 | Information Technology
18.05.2018 | Information Technology