NOAA's GOES-East satellite captured a view of Gabrielle, an unnamed system east of it, and Systems 99L and 98L on Sept. 5 at 10:45 a.m. EDT. NOAA's GOES-East satellite captured all four systems in a view across the entire Atlantic Ocean. The image was created by NASA's GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Md.
At 11 a.m. EDT on Sept. 5, Tropical Depression Gabrielle's maximum sustained winds dropped to near 35 mph/55 kph, when it was centered just about 80 miles/125 km south-southeast of Punta Cana, Dominican Republic near 17.5 north and 68.1 west. Gabrielle was moving to the northwest at 9 mph/15 kph. New data from the National Hurricane Center indicates that Gabrielle is not expected to intensify and may lose tropical cyclone status in the next day or two after it moves over the Dominican Republic tonight, Sept. 5. A tropical storm watch is in effect for the Dominican Republic from Cabo Engano to Cabo Frances Viejo.
When NASA's Aqua satellite passed over Gabrielle earlier on Sept. 5 at 1:41 a.m. EDT, it was a tropical storm. Gabrielle's cloud top temperatures were as cold as -63F/-52C at that time, and have since warmed. Warming cloud top temperatures indicate that cloud heights have dropped and there's not as much punch or uplift in the atmosphere. When Aqua passed by, the Atmospheric Infrared Sounder or AIRS instrument captured an infrared image that showed thunderstorms with cold cloud tops over Puerto Rico. Those thunderstorms had the capability of dropping heavy rainfall.
NASA's HS3 Investigates Gabrielle
One of two of NASA's Global Hawks flew over Tropical Depression Seven on Sept. 4, which organized into Tropical Storm Gabrielle. The Global Hawk deployed a record 80 dropsondes during the mission. The next two Global Hawk flights are expected to occur over Tropical Storm Gabrielle over the weekend of Sept. 7 and 8. NASA 872 may fly over Gabrielle on Saturday, Sept. 7 and NASA 871 may investigate the tropical storm on Sunday, Sept. 8 if Gabrielle holds together.
Despite being downgraded, Gabrielle is still expected to produce copious amounts of rainfall. Gabrielle is expected to drop between 2 to 4 inches over Puerto Rico and the U.S. Virgin Islands with isolated maximum amounts of up to 8 inches possible in areas of mountainous terrain.
A Low East of Gabrielle
Just to the east of Gabrielle is a large, elongated low pressure area (or trough) that does not yet have an investigation number assigned to it. It is centered near 21 north and 62 west and contains disorganized showers and thunderstorms. This low extends from the northeastern Leeward Islands northeastward over the Atlantic waters for several hundred miles. Because it is close to Gabrielle, development of this low is expected to be slow. The National Hurricane Center has given this area just a 20 percent chance of development in the next two days.
One low pressure area that does have a designation is in the southwestern Gulf of Mexico. That low is also elongated (a trough) ad has associated showers and thunderstorms. However, this low, designated as System 99L is only possible before it moves inland along the coast of mainland Mexico on Friday, Sept. 6. This system has a medium chance of becoming a tropical cyclone during the next two days.
Far in the eastern Atlantic lies System 98L, about 450 miles west-southwest of the Cape Verde Islands near 13.8 north and 31.3 west. This system has showers and thunderstorms that are showing some signs of organization. Dry air in the region, however, is expected to limit development potential, so this low has a low chance of becoming a tropical depression in the next couple of days.
Text credit: Rob Gutro
NASA's Goddard Space Flight Center
Rob Gutro | Source: EurekAlert!
Further information: www.nasa.gov
Further Reports about: Active Agents > Aqua satellite > Atlantic mollies > Cape Verde Islands > Depression > Goddard Space Flight Center > Hurricane > Hurricane Center > low pressure area > NASA > National Hurricane Center > Pacific Ocean > satellites > tropical cyclone > Tropical Depression > tropical diseases > tropical storm
More articles from Earth Sciences:
No Undo for Climate Change: Potential Pitfalls of Geoengineering
05.12.2013 | Max-Planck-Institut für Biogeochemie
NASA Sees Rainfall Quickly Fade in Dying Depression 33W
05.12.2013 | NASA's Goddard Space Flight Center
The Light: Global study gets underway with online user survey
Light has a fundamental impact on our sense of well-being and performance. In cooperation with Zumtobel, a supplier of lighting solutions, Fraunhofer IAO has launched a global user survey of lighting quality in offices. The objective is to identify the best lighting conditions for a variety of spaces and lighting ...
Quantum entanglement, a perplexing phenomenon of quantum mechanics that Albert Einstein once referred to as “spooky action at a distance,” could be even spookier than Einstein perceived.
Physicists at the University of Washington and Stony Brook University in New York believe the phenomenon might be intrinsically linked with wormholes, hypothetical features of space-time that in popular science fiction can provide a much-faster-than-light shortcut from one part of the universe to another.
But here’s the catch: One couldn’t actually ...
A star is formed when a large cloud of gas and dust condenses and eventually becomes so dense that it collapses into a ball of gas, where the pressure heats the matter, creating a glowing gas ball – a star is born.
New research from the Niels Bohr Institute, among others, shows that a young, newly formed star in the Milky Way had such an explosive growth, that it was initially about 100 times brighter than it is now. The results are published in the scientific journal, Astrophysical Journal Letters.
The young ...
EPFL scientists have shown how to achieve a dramatic increase in the capacity of optical fibers; Their simple, innovative solution reduces the amount of space required between the pulses of light that transport data
Optical fibers carry data in the form of pulses of light over distances of thousands of miles at amazing speeds. They are one of the glories of modern telecommunications technology.
However, their capacity is limited, because the pulses of light need to be lined up one after the other in ...
NASA's Hurricane and Severe Storms Sentinel airborne mission known as HS3 wrapped up for the 2013 Atlantic Ocean hurricane season at the end of September, and had several highlights. HS3 will return to NASA’s Wallops Flight Facility in Wallops Island, Va., for the 2014 Atlantic hurricane season.
During the 2013 mission, two unmanned Global Hawks flew from Wallops for the first time. The mission highlights included studying the Saharan Air Layer, following the genesis of a tropical storm, finding a unique hybrid core or center circulation in a redeveloped storm, obtaining measurements on the strongest side of ...
05.12.2013 | Health and Medicine
05.12.2013 | Ecology, The Environment and Conservation
05.12.2013 | Information Technology
05.12.2013 | Event News
04.12.2013 | Event News
12.11.2013 | Event News