When NOAA's GOES-West satellite captured an image of what is now Tropical Storm Marie, weakened from hurricane status on August 28, the strongest thunderstorms were located in the southern quadrant of the storm.
NOAA's GOES-West satellite captured an image of Marie on August 28 at 11 a.m. EDT. Bands of thunderstorms circled the storm especially to the north.
The National Hurricane Center noted that Marie has continued to produce a small area of convection (rising air that forms the thunderstorms that make up Marie) south and east of the center during some hours on the morning of August 28. The GOES image was created by the NASA/NOAA GOES Project at NASA's Goddard Space Flight Center in Greenbelt, Maryland.
Infrared data, such as that from the Atmospheric Infrared Sounder instrument aboard NASA's Aqua satellite showed that cloud tops had warmed.
Warming cloud tops means that the strength in the uplift of air (that pushes cloud tops higher into the colder levels of the atmosphere) has weakened, and clouds are not getting as high as they did before. The higher the thunderstorms, the stronger they usually are, but Marie's are dropping in height.
Marie is not able to generate strong thunderstorms because it has moved over cooler waters. Sea surface temperatures of at least 80 F (26.6 C) are needed to maintain a hurricane's strength. Marie is in waters as cool as 22C (71.6F).
At 11 a.m. EDT (1500 UTC) Marie's maximum sustained winds were down to 45 mph (75 kph) and weakening. Marie was centered near latitude 25.4 north and longitude 128.9 west, about 865 miles (1,395 km) west of Punta Eugenia, Mexico. Marie is moving northwest at 15 mph (24 kph).
The NHC expects Marie should become post-tropical by tonight, August 28. Meanwhile Marie continues kicking up rough surf.
Large southerly swells affecting much of the west coast of the Baja California peninsula and the coast of southern California will gradually subside through Friday, August 29. These swells could still produce life-threatening surf and rip currents, as well as minor coastal flooding around the time of high tide.
Text credit: Rob Gutro
NASA's Goddard Space Flight Center
Rob Gutro | Eurek Alert!
Tidal tugs on Teflon faults drive slow-slipping earthquakes
28.04.2015 | University of Washington
How cracking explains underwater volcanoes and the Hawaiian bend
28.04.2015 | University of Sydney
KAIST researchers published an article on the development of a novel technique to precisely track the 3-D positions of optically-trapped particles having complicated geometry in high speed in the April 2015 issue of Optica.
Daejeon, Republic of Korea, April 23, 2015--Optical tweezers have been used as an invaluable tool for exerting micro-scale force on microscopic particles and...
A very small and rare species of shark is swimming its way through scientific literature. But don't worry, the chances of this inches-long vertebrate biting...
Ever since computers have been small enough to be fixtures on desks and laps, their central processing has functioned something like an atomic Etch A Sketch, with electromagnetic fields pushing data bits into place to encode data.
Unfortunately, the same drawbacks and perils of the mechanical sketch board have been just as pervasive in computing: making a change often requires starting...
How is lightning initiated in thunderclouds? This is difficult to answer - how do you measure electric fields inside large, dangerously charged clouds? It was discovered, more or less by coincidence, that cosmic rays provide suitable probes to measure electric fields within thunderclouds. This surprising finding is published in Physical Review Letters on April 24th. The measurements were performed with the LOFAR radio telescope located in the Netherlands.
How is lightning initiated in thunderclouds? This is difficult to answer - how do you measure electric fields inside large, dangerously charged clouds? It was...
Max Planck researcher Buhalqem Mamtimin determines how much nitrogen oxide is released into the atmosphere from agriculturally used oases.
In order to make statements about current and future air pollution, scientists use models which simulate the Earth’s atmosphere. A lot of information such as...
23.04.2015 | Event News
23.04.2015 | Event News
13.04.2015 | Event News
28.04.2015 | Press release
28.04.2015 | Power and Electrical Engineering
28.04.2015 | Earth Sciences