Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


NASA Sees Some Powerful "Overshooting Cloud Tops" in Cyclone Felleng

NASA satellite imagery revealed that Cyclone Felleng is packing some powerful thunderstorms with overshooting cloud tops.

An overshooting (cloud) top is a dome-like protrusion that shoots out of the top of the anvil of a thunderstorm and into the troposphere. It takes a lot of energy and uplift in a storm to create an overshooting top, because usually vertical cloud growth stops at the tropopause and clouds spread horizontally, forming an "anvil" shape on top of the thunderstorms.

On Jan. 29, NASA's Aqua satellite captured an image of Cyclone Felleng at 5:14 a.m. EST that showed strong thunderstorms around the center of circulation and a 22 nautical mile-wide eye obscured by high clouds. The western edge of the storm is approaching Madagascar (left). Credit: NASA Goddard MODIS Rapid Response Team

NASA-NOAA's Suomi NPP satellite captured this false-colored night-time image of Cyclone Felleng during the night on Jan. 28, 2013. Felleng is northwest of Madagascar. The image revealed some pretty cold overshooting tops, topping at ~170K. The image shows some interesting gravity waves propagating out from the storm in both the thermal and visible imagery. Credit: William Straka, UWM/NASA/NOAA

During the night-time hours (Madagascar local time) of Jan. 28, NASA-NOAA's Suomi NPP satellite captured a night-time image of Cyclone Felleng when it was located northwest of Madagascar. The image was created at the University of Wisconsin-Madison and was false colored to reveal temperatures.

The image showed some pretty cold overshooting cloud tops, topping at ~170K (-153.7F/ -103.1C). The image also showed some interesting gravity waves (waves in the atmosphere) propagating out from the storm in both the thermal (infrared) and visible imagery. The infrared imagery also showed that Felleng has strengthened significantly since the previous day as convective bands of thunderstorms are wrapping more tightly into the eye.

On Jan. 29, the MODIS (Moderate Resolution Imaging Spectroradiometer) instrument aboard NASA's Aqua satellite captured an image of Cyclone Felleng at 1015 UTC (5:14 a.m. EST) that showed strong thunderstorms around the center of circulation and a 22 nautical mile-wide-eye (25.3 mile/40.7 km) obscured by high clouds. The image clearly showed the western edge of the storm is approaching Madagascar.

Cyclone Felleng has continued to intensify, as NASA-NOAA's Suomi NPP image indicated with the identification of overshooting cloud tops. On Jan. 29 at 1500 UTC (10 a.m. EST), Felleng has maximum sustained winds near 90 knots (103.6 mph/166.7 kph). Felleng was located near 14.3 south latitude and 54.6 east longitude, about 420 nautical miles (483.3 miles/777.8 km) north of La Reunion. Felleng is moving west-southwestward at 8 knots (9.2 mph/14.8 kph).

On Jan. 30, a trough (elongated area) of low pressure is expected to turn Felleng southward. The storm is expected to continue intensifying as it moves parallel to the eastern coast of Madagascar.

Text Credit: Rob Gutro
NASA's Goddard Space Flight Center, Greenbelt, Md.

Rob Gutro | EurekAlert!
Further information:

More articles from Earth Sciences:

nachricht Receding glaciers in Bolivia leave communities at risk
20.10.2016 | European Geosciences Union

nachricht UM researchers study vast carbon residue of ocean life
19.10.2016 | University of Miami Rosenstiel School of Marine & Atmospheric Science

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

Im Focus: Ultra-thin ferroelectric material for next-generation electronics

'Ferroelectric' materials can switch between different states of electrical polarization in response to an external electric field. This flexibility means they show promise for many applications, for example in electronic devices and computer memory. Current ferroelectric materials are highly valued for their thermal and chemical stability and rapid electro-mechanical responses, but creating a material that is scalable down to the tiny sizes needed for technologies like silicon-based semiconductors (Si-based CMOS) has proven challenging.

Now, Hiroshi Funakubo and co-workers at the Tokyo Institute of Technology, in collaboration with researchers across Japan, have conducted experiments to...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Resolving the mystery of preeclampsia

21.10.2016 | Health and Medicine

Stanford researchers create new special-purpose computer that may someday save us billions

21.10.2016 | Information Technology

From ancient fossils to future cars

21.10.2016 | Materials Sciences

More VideoLinks >>>