Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA sees Tropical Cyclone Narelle approaching Western Australia coast

11.01.2013
NASA's Aqua satellite looked at Cyclone Narelle in visible and infrared light to understand the behavior of the storm. NASA's MODIS and AIRS instruments provided those data, respectively, and they showed that Narelle is gaining strength as it approaches the northern coast of Western Australia.

Watches and Warnings are posted for the western coast of Western Australia over the next several days as Narelle continues to move on a southerly track, where it is expected to remain at sea, but parallel the coast.


This visible image of Tropical Cyclone Narelle was captured by the MODIS instrument aboard NASA's Aqua satellite on Jan. 10, 2013, at 0625 UTC. Narelle developed the tropical cyclone signature shape with a tight rounded center and bands of thunderstorms wrapping around.

Credit: NASA Goddard MODIS Rapid Response Team

Current Australian warnings include: a Cyclone Warning is in effect for coastal areas from Whim Creek to Coral Bay, including Karratha, Dampier, Onslow and Exmouth. A Cyclone Watch is in effect for coastal areas from Coral Bay to Cape Cuvier.

A Blue alert is in effect for the coastal and island communities from Whim Creek to Mardie, including Wickham, Roebourne, Point Sampson, Karratha and DampiFor updated warnings and watches, visit the Australian Bureau of Meteorology web page: http://www.bom.gov.au/

australia/warnings/index.shtml.

When NASA's Aqua satellite passed over Narelle on Jan. 9 at 1811 UTC (1:11 p.m. EST/2:11 a.m. on Jan. 10, local time, Perth, Australia), the Atmospheric Infrared Sounder (AIRS) instrument captured data on the storm in infrared light. Infrared light shows temperature, and cloud top temperatures can indicate if clouds are reaching higher in the atmosphere (strengthening) or lower (weakening). AIRS data showed that the largest area of powerful thunderstorms were around the center, north and northwest of the center of circulation, an indication of where the heaviest rain was falling.

Another that flies aboard NASA's Aqua satellite called the Moderate Resolution Imaging Spectroradiometer (MODIS) instrument captured a visible image of Tropical Cyclone Narelle as it was approaching the northern coast of Western Australia. The image was taken on Jan. 10, 2013 at 0625 UTC (1:25 a.m. EST/2:25 p.m. local time, Perth, Australia). The MODIS image revealed that Narelle developed the signature shape of a tropical cyclone with a tight rounded center and bands of thunderstorms wrapping into the center.

On Jan. 10 at 1500 UTC (10 a.m. EST/11 p.m. local time, Perth), Tropical Cyclone Narelle had maximum sustained winds near 80 knots (92 mph/148.2 kph). It was centered near 16.5 south latitude and 114.7 east longitude, about 370 nautical miles north of Learmonth, Australia. Narelle has been moving south-southwest at 10 knots (11.5 mph/18.5 kph). Narelle is churning up rough seas, as high as 32 feet (9.7 meters), which will likely cause coastal erosion and flooding. Narelle is expected to continue moving to the south-southwest toward Northwest Cape and gradually intensify.

Infrared imagery, such as what AIRS provides shows that a new feeder band of thunderstorms has formed to the south of the center. Infrared data showed that cloud tops around the center have cooled, indicating convection (rising air forming the thunderstorms that make up the cyclone) has strengthened, and cloud tops are higher and the storms more powerful. Microwave satellite data, which can see through clouds, showed that an eye was forming in the center. The JTWC forecasters call for Narelle to continue intensifying as it moves south, and peak around 115 knots (132.3 mph/213 kph) sometime on Jan. 12 before weakening again.

New forecast guidance from the Joint Typhoon Warning Center (JTWC) now calls for the west coast of Western Australia to experience Tropical Cyclone Narelle's rainfall, gusty winds and rough surf. The JTWC forecast now takes Narelle close to the coast from north of Learmonth to the peninsula south of Perth, where it is now expected to make landfall in the South West region of Western Australia on Jan. 15 after tracking south through Geographe Bay.

Rob Gutro | EurekAlert!
Further information:
http://www.nasa.gov

More articles from Earth Sciences:

nachricht Northern oceans pumped CO2 into the atmosphere
27.03.2017 | CAGE - Center for Arctic Gas Hydrate, Climate and Environment

nachricht Weather extremes: Humans likely influence giant airstreams
27.03.2017 | Potsdam-Institut für Klimafolgenforschung

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Northern oceans pumped CO2 into the atmosphere

27.03.2017 | Earth Sciences

Fingerprint' technique spots frog populations at risk from pollution

27.03.2017 | Life Sciences

Big data approach to predict protein structure

27.03.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>