Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA sees an active tropical Atlantic again

22.08.2012
The Atlantic Ocean is kicking into high gear with low pressure areas that have a chance at becoming tropical depressions, storms and hurricanes. Satellite imagery from NASA's Terra and Aqua satellites have provided visible, infrared and microwave data on four low pressure areas.

In addition, NASA's GOES Project has been producing imagery of all systems using NOAA's GOES-13 satellite to see post-Tropical Storm Gordon, Tropical Depression 9, and Systems 95L and 96L.


This NOAA GOES-13 satellite image taken on Aug. 21 at 7:45 a.m. EDT shows three of the four tropical systems being watched in the Atlantic Ocean basin. From left to right are: System 95L, Tropical Depression 9 and System 96L. Post-tropical Storm Gordon is just beyond the horizon.

Credit: NASA/NOAA GOES Project

Tropical Storm Gordon is no longer a tropical storm and is fizzling out east of the Azores. Tropical Depression 9 was born on Aug. 20 and continues to get organized. Behind Tropical Depression 9 in the eastern Atlantic is another low pressure area called System 96L. In the Gulf of Mexico lies another low, called System 95L. In an image taken from NOAA's GOES-13 satellite on Aug. 21 at 7:45 a.m. EDT, all of the systems were visible except for post-tropical Storm Gordon. The storms are seen lined up along the Atlantic basin from left to right with System 95L in the Gulf of Mexico, Tropical Depression 9 just east of the Caribbean Sea and System 96L in the eastern Atlantic Ocean.

NOAA manages the GOES-13 satellite, and NASA's GOES Project uses the data to create images and animations out of NASA's Goddard Space Flight Center in Greenbelt, Md.

Tropical Depression 9

On Aug. 20 at 0435 UTC (12:35 a.m. EDT) before System 94L organized into Tropical Storm 9, NASA's Aqua satellite passed overhead, and the Atmospheric Infrared Sounder (AIRS) instrument captured an infrared image of the storm. It showed that the strongest convection (rising air that forms the thunderstorms that make up the tropical cyclone) were located south of the center of circulation. Those thunderstorms had cold cloud top temperatures of -63 Fahrenheit (-52 Celsius) that indicated there was strong uplift in the low pressure area, and were an indication that the system could strengthen, which it did later into a depression.

Tropical Depression 9 has been the cause for tropical storm warning posts in a number of islands. On Aug. 21, a Tropical Storm Warning is in effect for Dominica, Guadeloupe, Desirade, Les Saintes, Marie Galante, and St. Martin.

TD9 appears as a rounded storm on the GOES-13 satellite image from Aug. 21. In the image, low pressure area "System 96L" trails to the southwest of TD9.

On Aug. 21 at 8 a.m. EDT (1200 UTC) Tropical Depression 9 (TD9) had maximum sustained winds near 35 mph (55 kmh) and is expected to strengthen into a tropical storm later today. It was located about 645 miles (1,035 km) east of Guadeloupe near latitude 15.1 north and longitude 51.8 west. TD90 is moving toward the west near 20 mph (32 kmh) and is expected to continue moving in that direction for the next couple of days, according to the National Hurricane Center (NHC).

NHC said that the cyclone should move through the central Lesser Antilles on Wed., Aug. 22 and move into the Caribbean Sea the next day. NHC expects rainfall between 4 and 8 inches to affect the northern Windward and the Leeward Islands, accompanied by heavy surf and rip tides.

System 96L in Eastern Atlantic

System 96L appears well-defined on the GOES-13 satellite imagery. It is associated with a tropical wave, and is spinning about 425 miles southwest of the Cape Verde Islands. The NHC said that System 96L could very well become the tenth tropical depression of the Atlantic Hurricane Season in the next day or two. It is moving to the west at 15 mph.

System 95L Struggles in the Gulf of Mexico

The eastern-most low pressure area in the Atlantic Ocean basin is System 95L, located in the western Gulf of Mexico. It is producing disorganized showers and thunderstorms just off-shore of the northeastern coast of Mexico. The low-level center of circulation is also elongated, which is a bad sign for a tropical cyclone trying to organize. Tropical cyclones need a strong, rounded circulation to strengthen. The NHC noted that slow development is still possible before System 95L moves inland in northeastern Mexico later in the day on Wed. Aug 21. The system has a 30 percent chance of developing before that happens. Once inland, its chances for development are greatly reduced because it will be cut off from its life-giving warm water supply.

Tropical Storm Gordon is History

On Monday, August 20, satellite imagery and surface data revealed that Tropical Storm Gordon lost his tropical characteristics, making it a post-tropical cyclone. According to Reuters news, Gordon caused some power outages, fallen trees and minor flooding.

The National Hurricane Center issued their final advisory on Gordon on August 20 at 5 p.m. EDT (2100 UTC). At that time, Gordon still had maximum sustained winds near 45 mph (75 kmh) and was weakening. Gordon was about 370 miles (595 km) east-northeast of the Azores, near latitude 39.2 north and longitude 20.3 west. Gordon was moving east-northeast near 16 mph (26 kmh) and was expected to turn southeast while weakening further. Gordon is expected to dissipate in a couple of days east of Portugal.

To see an image of Tropical Storm Gordon captured by the Moderate Resolution Imaging Spectroradiometer instrument onboard NASA's Terra satellite on Aug. 20 at 8:20 a.m. EDT, before it transitioned into a post-tropical storm, visit: http://lance-modis.eosdis.nasa.gov/cgi-bin/imagery/single.cgi?image=Gordon.A2012233.1220.2km.jpg

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

More articles from Earth Sciences:

nachricht Responses of benthic foraminifera to changes of temperature and salinity
14.01.2019 | Science China Press

nachricht 'Realistic' new model points the way to more efficient and profitable fracking
14.01.2019 | DOE/Los Alamos National Laboratory

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Nanocellulose for novel implants: Ears from the 3D-printer

Cellulose obtained from wood has amazing material properties. Empa researchers are now equipping the biodegradable material with additional functionalities to produce implants for cartilage diseases using 3D printing.

It all starts with an ear. Empa researcher Michael Hausmann removes the object shaped like a human ear from the 3D printer and explains:

Im Focus: Elucidating the Atomic Mechanism of Superlubricity

The phenomenon of so-called superlubricity is known, but so far the explanation at the atomic level has been missing: for example, how does extremely low friction occur in bearings? Researchers from the Fraunhofer Institutes IWM and IWS jointly deciphered a universal mechanism of superlubricity for certain diamond-like carbon layers in combination with organic lubricants. Based on this knowledge, it is now possible to formulate design rules for supra lubricating layer-lubricant combinations. The results are presented in an article in Nature Communications, volume 10.

One of the most important prerequisites for sustainable and environmentally friendly mobility is minimizing friction. Research and industry have been dedicated...

Im Focus: Mission completed – EU partners successfully test new technologies for space robots in Morocco

Just in time for Christmas, a Mars-analogue mission in Morocco, coordinated by the Robotics Innovation Center of the German Research Center for Artificial Intelligence (DFKI) as part of the SRC project FACILITATORS, has been successfully completed. SRC, the Strategic Research Cluster on Space Robotics Technologies, is a program of the European Union to support research and development in space technologies. From mid-November to mid-December 2018, a team of more than 30 scientists from 11 countries tested technologies for future exploration of Mars and Moon in the desert of the Maghreb state.

Close to the border with Algeria, the Erfoud region in Morocco – known to tourists for its impressive sand dunes – offered ideal conditions for the four-week...

Im Focus: Programming light on a chip

Research opens doors in photonic quantum information processing, optical signal processing and microwave photonics

Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new integrated photonics platform that can...

Im Focus: Physicists uncover new competing state of matter in superconducting material

A team of experimentalists at the U.S. Department of Energy's Ames Laboratory and theoreticians at University of Alabama Birmingham discovered a remarkably long-lived new state of matter in an iron pnictide superconductor, which reveals a laser-induced formation of collective behaviors that compete with superconductivity.

"Superconductivity is a strange state of matter, in which the pairing of electrons makes them move faster," said Jigang Wang, Ames Laboratory physicist and...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

11th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Aachen, 3-4 April 2019

14.01.2019 | Event News

ICTM Conference 2019: Digitization emerges as an engineering trend for turbomachinery construction

12.12.2018 | Event News

New Plastics Economy Investor Forum - Meeting Point for Innovations

10.12.2018 | Event News

 
Latest News

Scientists coax proteins to form synthetic structures with method that mimics nature

15.01.2019 | Life Sciences

Next generation photonic memory devices are light-written, ultrafast and energy efficient

15.01.2019 | Information Technology

Viennese scientists develop promising new type of polymers

15.01.2019 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>