Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA satellites showed little change in Tropical Storm Leslie

05.09.2012
Over the weekend of Aug. 31 to Sept. 2, Tropical Storm Leslie's maximum sustained winds were pretty constant and satellite imagery from NASA's Aqua and Terra satellites confirm the steadiness of the storm. That story is expected to change later this week however, as Leslie nears Bermuda and is expected to reach hurricane strength. Meanwhile, Leslie is still about the same strength today, Sept. 4 because of wind shear.

Two visible images from the Moderate Resolution Imaging Spectroradiometer or MODIS instrument that flies onboard both of NASA's Aqua and Terra satellites showed that Tropical Storm Leslie didn't change much in terms of form or strength from Aug. 31 at 12:55 p.m. EDT to Sept. 1 10:30 a.m. EDT. Leslie's shape appeared almost identical in a 22 hour period at a time that its maximum sustained winds were near 60 mph (95 kmh).


These visible images from the MODIS instrument onboard NASA's Aqua and Terra satellites showed that Tropical Storm Leslie didn't change much in terms of form or strength from Aug. 31 at 12:55 p.m. EDT to Sept. 1 10:30 a.m. EDT.

Credit: NASA Goddard MODIS Rapid Response Team

On Sept. 4 at 11 a.m. EDT, Tropical Storm Leslie's maximum sustained winds had still not changed much from the time NASA's two satellites passed over it on the weekend. Maximum sustained winds were now up to 65 mph (100 kmh). Leslie is about 410 miles (670 km) in diameter, as tropical-storm force winds extend up to 205 miles (335 km) from the center.

The National Hurricane Center noted that Leslie's path may become somewhat erratic over the next couple od days on its northward journey.

Leslie was located about 525 miles (840 km) south-southeast of Bermuda, near latitude 25.0 north and longitude 62.5 west. Leslie is moving toward the north near 3 mph (6 kmh) and is expected to continue moving slowly in that direction.

Ocean swells from Tropical Storm Leslie may affect the Leeward Islands, Puerto Rico and the Virgin Islands, and those conditions are expected to spread to Bermuda and the eastern U.S.

Satellite data on Sept. 4 showed that the rising air that forms the thunderstorms that make up the storm (convection) has decreased near Leslie's center. Leslie is being battered by wind shear from the northwest at 20 knots, which is pushing the showers and thunderstorms to the southeast. The National Hurricane Center update at 11 a.m. EDT noted that "the convective cloud structure now more resembles a curved band pattern [than a circular tropical cyclone]." In fact, the low-level center of Leslie appears to be 30 miles north of the mid-level center. That's important because the centers of tropical cyclones need to be stacked on top of each other like a coiled spring, in order to rotate and intensify. Basically, it means that Leslie is struggling.

That environment is expected to change, though, as Leslie moves north and wind shear relaxes, giving the storm a chance to organize. That's why the National Hurricane Center expects Leslie to strengthen into a hurricane by the end of the week.

For the Aug. 31 image in high resolution: http://lance-modis.eosdis.nasa.gov/cgi-bin/imagery/single.cgi?image=Leslie.A2012244.1655.2km.jpg

For the Sept. 1 image in high resolution: http://lance-modis.eosdis.nasa.gov/cgi-bin/imagery/single.cgi?image=Leslie.A2012245.1430.2km.jpg

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

More articles from Earth Sciences:

nachricht NASA looks to solar eclipse to help understand Earth's energy system
21.07.2017 | NASA/Goddard Space Flight Center

nachricht Scientists shed light on carbon's descent into the deep Earth
19.07.2017 | European Synchrotron Radiation Facility

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Manipulating Electron Spins Without Loss of Information

Physicists have developed a new technique that uses electrical voltages to control the electron spin on a chip. The newly-developed method provides protection from spin decay, meaning that the contained information can be maintained and transmitted over comparatively large distances, as has been demonstrated by a team from the University of Basel’s Department of Physics and the Swiss Nanoscience Institute. The results have been published in Physical Review X.

For several years, researchers have been trying to use the spin of an electron to store and transmit information. The spin of each electron is always coupled...

Im Focus: The proton precisely weighted

What is the mass of a proton? Scientists from Germany and Japan successfully did an important step towards the most exact knowledge of this fundamental constant. By means of precision measurements on a single proton, they could improve the precision by a factor of three and also correct the existing value.

To determine the mass of a single proton still more accurate – a group of physicists led by Klaus Blaum and Sven Sturm of the Max Planck Institute for Nuclear...

Im Focus: On the way to a biological alternative

A bacterial enzyme enables reactions that open up alternatives to key industrial chemical processes

The research team of Prof. Dr. Oliver Einsle at the University of Freiburg's Institute of Biochemistry has long been exploring the functioning of nitrogenase....

Im Focus: The 1 trillion tonne iceberg

Larsen C Ice Shelf rift finally breaks through

A one trillion tonne iceberg - one of the biggest ever recorded -- has calved away from the Larsen C Ice Shelf in Antarctica, after a rift in the ice,...

Im Focus: Laser-cooled ions contribute to better understanding of friction

Physics supports biology: Researchers from PTB have developed a model system to investigate friction phenomena with atomic precision

Friction: what you want from car brakes, otherwise rather a nuisance. In any case, it is useful to know as precisely as possible how friction phenomena arise –...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Closing the Sustainability Circle: Protection of Food with Biobased Materials

21.07.2017 | Event News

»We are bringing Additive Manufacturing to SMEs«

19.07.2017 | Event News

The technology with a feel for feelings

12.07.2017 | Event News

 
Latest News

NASA looks to solar eclipse to help understand Earth's energy system

21.07.2017 | Earth Sciences

Stanford researchers develop a new type of soft, growing robot

21.07.2017 | Power and Electrical Engineering

Vortex photons from electrons in circular motion

21.07.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>