Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA sees colder cloud-top temps in new Tropical Depression 16, warnings up

29.09.2010
NASA's Aqua satellite has peered into the cloud tops of System 96L in the western Caribbean early this morning and noticed that they've become colder and higher, which indicated the storms was strengthening and organizing. Just over eight hours later, the new Tropical Depression 16 was born, and now has the potential to become a tropical storm before it merges with an elongated area of low pressure near the Florida late on Wednesday.

Tropical Depression 16 was officially named this morning, Sept. 28 at 11 a.m. EDT by NOAA's National Hurricane Center in Miami, Fla. Many watches and warnings have also already been posted this morning.


GOES-13 captured this visible image of Tropical Depression 16 on Sept. 28 at 1425 UTC (10:25 a.m. EDT) as it strengthening into a depression (bottom center) in the western Caribbean. The large area of clouds that stretch along the US east coast are associated with an elongated area of low pressure (a trough). Credit: NOAA/NASA GOES Project

At 11 a.m. Tropical Depression 16's center was about 180 miles south of Havana, Cuba and 390 miles south-southwest of Miami, Fla. near 20.6 North latitude and 82.5 West longitude. It is moving north-northeast near 10 mph and had maximum sustained winds near 35 mph. Its minimum central pressure was 1001 millibars.

The government of the Cayman Islands has issued a Tropical Storm Warning for all of the Cayman Islands. The government of Cuba has issued s Tropical Storm Warning for the Cuban provinces from Mantanzas eastward to Ciego De Avila. The government of the Bahamas has issued a tropical storm warning for the Northwestern and Central Bahamas. This Warning Includes the Abacos, Andros Island, Berry Islands, Bimini, Eleuthera, Grand Bahama Island, New Providence, Cat Island, the Exumas, Long Island, Rum Cay, and San Salvador.

In the U.S., Florida is under a Tropical Storm Warning and Watch. A Tropical Storm Warning has been issued for the Florida coast from Jupiter Inlet southward to East Cape Sable, and for all of the Florida Keys, including Florida Bay and the Dry Tortugas. A Tropical Storm Watch has been issued for the west coast of Florida from north of east Cape Sable to Chokoloskee and for the east coast of Florida from north of Jupiter Inlet to Sebastian Inlet.

The Atmospheric Infrared Sounder instrument, known as AIRS has the ability to determine cloud top and sea surface temperatures from its position in space aboard NASA's Aqua satellite. Cloud top temperatures help forecasters know if a storm is strengthening or weakening. When cloud top temperatures get colder it means that they're getting higher into the atmosphere which means the "uplift" of warm, moist air is stronger and it will form stronger thunderstorms (that power a tropical cyclone). When cloud-top temperatures warm up it means that the cloud tops are lower than they were before, indicating that the storm is weakening.

When the Aqua satellite passed over Tropical Depression 16 (TD16) from space on Sept. 28 at 0635 UTC (2:35 a.m. EDT) the AIRS instrument took the temperature of the cloud tops in the storm and found them to be as cold as or colder than -63 Fahrenheit throughout a very large area within TD16, indicating the storm had a good amount of energy to power it up. The area of strong thunderstorms in the AIRS images is quite large, and TD16 is already raining on western Cuba.

The Geostationary Operational Environmental Satellite known as GOES-13 flew over Tropical Depression 16 on Sept. 28 at 1425 UTC (10:25 a.m. EDT) as it strengthening into a depression. GOES-13's visible imagery showed a large extent of cloud cover, spanning over Cuba and Jamaica, the Cayman Islands and northeastward into south Florida.

The National Hurricane Center (NHC) in Miami, Fla. noted this morning, Sept. 28 at 8 a.m. EDT that TD16 is going to bring some heavy rains and squally conditions in the Caribbean. NHC said, "Heavy rains and strong gusty winds to tropical storm force are expected to affect the Cayman Islands, Jamaica and Cuba today. These weather conditions are likely to spread over the Florida Keys, southern Florida and the northwestern Bahamas later today and Wednesday."

During the morning hours of Sept. 28, the strongest winds were happening about a couple of hundred miles east and south of the Isle of Youth, Cuba and Grand Cayman. If TD16 strengthens into a tropical storm, it would be named Nicole.

South-southwesterly vertical wind shear associated with a large upper-level trough moving into the southeastern U.S. is expected to limit the storm's intensification, although it is near tropical storm-force this morning. The projected track of the TD16 takes it in a north-northeasterly direction across Cuba toward southeastern Florida.

Meanwhile, there's another female named storm that's still making waves in the Atlantic Ocean basin, Julia. However, Julia is just a remnant low pressure area and is about 150 miles south-southeast of Bermuda. This remnant low is moving west-northwest near 15 mph and is not in a good environment for redevelopment. The NHC gives Julia's remnants a meager ten percent chance of redeveloping in the next 48 hours, so TD16 is the one to watch.

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

More articles from Earth Sciences:

nachricht Predicting eruptions using satellites and math
28.06.2017 | Frontiers

nachricht NASA sees quick development of Hurricane Dora
27.06.2017 | NASA/Goddard Space Flight Center

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Supersensitive through quantum entanglement

28.06.2017 | Physics and Astronomy

X-ray photoelectron spectroscopy under real ambient pressure conditions

28.06.2017 | Physics and Astronomy

Mice provide insight into genetics of autism spectrum disorders

28.06.2017 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>