The Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on NASA's Aqua satellite captured this visible image of Tropical Storm Isaac on Aug. 27 at 3:00 p.m. EDT is it was moving northwest through the Gulf of Mexico.
Issac's large reach is seen by its eastern cloud cover over the entire state of Florida. At the same time, the Atmospheric Infrared Sounder (AIRS) instrument on Aqua captured infrared data on Isaac's clouds. Cloud top temperatures were colder than –63F (-52C) around the center of circulation and the western quadrant of the storm, and in a large band of thunderstorms east of the center of circulation, over Florida and parts of Cuba. That's where the strongest storms and heaviest rainfall was occurring.
On Aug. 28 at 8:40 a.m. EDT, a visible image of Tropical Storm Isaac taken from NOAA's GOES-13 satellite showed the huge extent of the storm, where the eastern-most clouds lie over the Carolinas and the western-most clouds are brushing east Texas. The image was created by the NASA GOES Project at the NASA Goddard Space Flight Center in Greenbelt, Md. Tropical-storm-force winds extend outward up to 205 miles (335 km) from the center of circulation, making the storm about 410 miles in diameter.
Warnings and watches in effect on Tuesday, Aug. 28, 2012 are many. A hurricane warning is in effect for east of Morgan City Louisiana to the Alabama-Florida Border, including Metropolitan New Orleans, Lake Pontchartrain, and Lake Maurepas. A hurricane watch is in effect for Intracoastal City to Morgan City, Louisiana. Tropical Storm Warnings are in effect from the Alabama-Florida border to the Aucilla River, and Morgan City to Cameron, Louisiana. A Tropical Storm Watch is in effect from east of High Island, Texas to just west of Cameron, Louisiana.
On Aug. 28 at 8 a.m. EDT, Tropical Storm Issac's maximum sustained winds were just under hurricane force, at 70 mph (110 kmh). The center of Tropical Storm Isaac was located near latitude 27.8 north and longitude 88.2 west, only about 105 miles (170 km) south-southeast of the mouth of the Mississippi River. Isaac is moving northwest at 7 mph (11 kmh) and is expected to continue in that direction for the next day or two, but it's speed is expected to fluctuate. The National Hurricane Center noted that the center of Isaac will be near or over the Louisiana coast tonight, Aug. 28, or early on Aug. 29.
Storm surge is a deadly part of any landfalling tropical cyclone. The National Hurricane Center (NHC) is warning that storm surge will be highest from Isaac from southeastern Louisiana to Mississippi, where surge levels are expected between 6 and 12 feet during times of high tide. Alabama's coast may experience surge between 4 and 8 feet, while south-central Louisiana and the Florida panhandle can expect between 3 and 6 feet. Florida's west coast including Apalachee Bay can expect a storm surge between 1 and 3 feet.
The NHC expects hurricane conditions in the northern Gulf Coast warning area during the afternoon of Aug. 28. As conditions worsen, isolated tornadoes are possible as with any landfalling tropical cyclone.
NASA's Tropical Rainfall Measuring Mission (TRMM) satellite has seen large rainfall rates within Tropical Storm Isaac, and those large rainfall rates and slow movement of the storm will lead to high rainfall totals. The National Hurricane Center expects 7 to 14 inches of rain with possible isolated maximum amounts of 20 inches in southeastern Louisiana, southern Mississippi, southern Alabama and the extreme western Florida Panhandle.For updates on location from the National Hurricane Center, visit:
Rob Gutro | EurekAlert!
NASA sees quick development of Hurricane Dora
27.06.2017 | NASA/Goddard Space Flight Center
Collapse of the European ice sheet caused chaos
27.06.2017 | CAGE - Center for Arctic Gas Hydrate, Climate and Environment
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...
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...
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...
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...
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)...
19.06.2017 | Event News
13.06.2017 | Event News
13.06.2017 | Event News
27.06.2017 | Power and Electrical Engineering
27.06.2017 | Information Technology
27.06.2017 | Physics and Astronomy