NASA and NOAA satellites were watching the low pressure System 98L in the central Atlantic yesterday when it was 1450 miles east of the Leeward Islands.
This image from NOAA's GOES-13 satellite was captured at 4:45 a.m. on Sept. 21, 2011, and shows Ophelia as a large and still disorganized area of clouds (right). Ophelia is about 350 miles in diameter. The smaller rounded area of clouds (left) is another low that has a zero percent chance of development. Credit: Credit: NASA/NOAA GOES Project
Yesterday, Sept. 20, 2011 at 4:11 p.m. NASA's Aqua satellite flew over System 98L before it became a tropical storm. An infrared image from the Atmospheric Infrared Sounder instrument onboard showed System 98L's strongest thunderstorms and coldest cloud tops (colder than -63F/-52C) were banded north and south of the center of circulation. Those bands of thunderstorms were a sign that the low pressure area was organizing and strengthening.While the U.S. was asleep, System 98L organized and strengthened further into Tropical Storm Ophelia. By the early morning of Sept. 21, her center was near 12.7 North latitude and 41.8 West longitude, about 1370 miles east of the Leeward Islands. Her minimum central pressure is 1005 millibars. Ophelia has maximum sustained winds near 45mph. Those tropical storm-force winds extend out to 175 miles making Ophelia a good-sized tropical storm, about 350 miles in diameter.
Ophelia is still too far away from land for watches or warnings. She's moving west at 14 mph (20 kmh) and the National Hurricane Center expects to Ophelia to continue in that direction while strengthening over the next day in the warm waters of the central tropical Atlantic.
Thereafter, however, the southwesterly wind shear is expected to shift more westerly and increase because of an upper-level low pressure area forming north of Puerto Rico. Increasing wind shear will likely prevent further intensification, but satellites are keeping an eye on what's happening under the hood of Ophelia's clouds.
According to the National Hurricane Center forecast track, interests in the Northern Leeward Islands and Puerto Rico will feel the effects of Ophelia late in the weekend.
Rob Gutro | EurekAlert!
As sea level rises, much of Honolulu and Waikiki vulnerable to groundwater inundation
29.03.2017 | University of Hawaii at Manoa
Researchers discover dust plays prominent role in nutrients of mountain forest ecoystems
29.03.2017 | University of Wyoming
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...
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...
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...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
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...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
29.03.2017 | Materials Sciences
29.03.2017 | Physics and Astronomy
29.03.2017 | Earth Sciences