Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

NASA satellite data confirm a stronger Tropical Storm Tomas, hurricane warnings up

05.11.2010
NASA's infrared satellite imagery has confirmed that Tomas is intensifying as convection is strengthening and cloud tops within the system are getting colder.

Infrared imagery helps scientists detect cold top temperatures within a tropical cyclone, and Tomas' cloud tops have grown colder over the last 24 hours. Tomas showed strong convective activity in his center as indicated by high thunderstorms that were as cold as -63 degrees Fahrenheit.


The GOES-13 satellite captured a visible image of Tropical Storm Tomas on Nov. 4 at 1231 UTC (8:31 a.m. EDT) on its way toward Haiti. GOES-13 is operated by NOAA. Credit: NOAA/NASA GOES Project

The colder the cloud tops, the higher and stronger the thunderstorms are that power the tropical cyclone. The infrared imagery was captured on Nov. 4 at 0659 UTC (2:59 a.m. EDT) by the Atmospheric Infrared Sounder (AIRS) instrument that flies aboard NASA's Aqua satellite.

At 8 a.m. EDT on Nov. 4 Tomas had maximum sustained winds near 50 mph, and further strengthening is expected as wind shear remains light and sea surface temperatures remain warm. Tomas was located about 150 miles south-southeast of Kingston, Jamaica and 305 miles southwest of Port Au Prince, Haiti near 15.9 North and 76.0 West. It was moving north-northwest near 6 mph, and had a minimum central pressure of 998 millibars.

Another indication of strengthening is falling atmospheric pressure. When air pressure falls a tropical cyclone is intensifying, and hurricane hunter aircraft detected a drop in atmospheric pressure at 8:30 a.m. EDT this morning within Tomas to 997 millibars.

A tropical storm warning is in effect for Jamaica as Tomas nears. Tropical Storm conditions are expected within 24 to 36 hours of the warning area. The warning was posted at 8 a.m. EDT on Nov. 4. Tropical storm warnings are also in effect for the south coast of the Dominican Republic from the Haiti border east to Barahona, and in Cuba, for the provinces of Guantanamo, Santiago de Cuba and Holguin.

Hurricane warnings are now in effect for Haiti, southeastern Bahamas and the Turks and Caicos Islands.

The National Hurricane Center (NHC) in Miami, Fla. is expecting very heavy rainfall amounts with Tomas. NHC stated that "Haiti and the Dominican Republic can expect 5 to 10 inches of rain, locally up to 15 inches. Jamaica may get 1 to 3 inches of rain. These rains could cause life-threatening flashfloods or mudslides. The Turks and Caicos Islands and the Bahamas could see 3 to 6 inches."

In addition to the heavy rainfall, storm surges between 1 to 3 feet above normal tide levels can be expected in the warning area in areas of onshore flow.

Tropical Storm Tomas continues to track north-northwest toward the Windward Passage and eastern Hispaniola. Satellite imagery shows that scattered showers and thunderstorms that are associated with Tropical Storm Tomas are in the area between 15 and 19 degrees North and 67 to 79 West, covering a large area.

AIRS infrared satellite imagery showed a second area of showers and thunderstorms with strong convection, located to the southwest of Tomas. Computer models indicate that those showers are associated with a monsoon trough, or an elongated area of low pressure. That trough stretches a long distance from southwest of Tomas near 13 North and 78 West, west to Costa Rica and into the eastern Pacific Ocean.

A low- to mid-level ridge of high pressure (an elongated area of high pressure) is sitting over the western central Atlantic Ocean today is steering Tomas to the north-northwest and then north as it moves around the edge of the high. The high acts as a wall that Tomas can't break through, so it circles the high's perimeter.

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

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

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

Im Focus: A Challenging European Research Project to Develop New Tiny Microscopes

The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.

To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...

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...

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

Researchers shoot for success with simulations of laser pulse-material interactions

29.03.2017 | Materials Sciences

Igniting a solar flare in the corona with lower-atmosphere kindling

29.03.2017 | Physics and Astronomy

As sea level rises, much of Honolulu and Waikiki vulnerable to groundwater inundation

29.03.2017 | Earth Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>