Satellite data, like that from NASA and JAXA's Tropical Rainfall Measuring Mission (TRMM), combined with ground weather station information, experience and several computer models help forecasters figure out where tropical cyclones may be headed.
On Thursday, January 28 at 09:00 UTC (4 a.m. ET) Olga was a tropical depression with maximum sustained winds near 34 mph (30 knots). Olga's center was still inland in the Northern Territory, and south of the coast of the Gulf of Carpentaria. Olga's center was about 34 miles west of Borroloola and 400 nautical miles southeast of Darwin, Australia, near 17.3 South latitude and 135.9 East longitude. Olga was moving south-southwest near 9 mph (8 knots), and the Joint Typhoon Warning Center expects her center to remain over land. However, the Australian Bureau of Meteorology is forecasting Olga to track north and back into the Gulf of Carpentaria.
Meanwhile, warnings remain in effect today. A Cyclone warning continues for coastal and island communities from Cape Shield to Burketown. In addition, a Cyclone Watch is up for coastal and island communities from Burketown to Pormpuraaw.
The TRMM satellite passed over tropical storm Olga when it was located over northern Australia near the coast of the Gulf of Carpentaria on January 27 at 0041 UTC. At that time, Olga was again a tropical storm, and TRMM revealed that it was dropping light to moderate rainfall along a large area of the Australia coast in the southern Gulf of Carpentaria.
TRMM's rainfall analysis is pretty complicated to create. It's assembled by research meteorologists at NASA's Goddard Space Flight Center in Greenbelt, Md. Rainfall analyses are derived from TRMM's Precipitation Radar (PR) and TRMM Microwave Imager instruments (TMI), and then overlaid on infrared and visible images from TRMM's Visible and Infrared Scanner (VIRS).
The Joint Typhoon Warning Center issued their final advisory on Olga today, although they will watch it for possible regeneration. The final bulletin noted that "Animated multispectral satellite imagery shows convective wrapping (showers and thunderstorms) into a developed low level circulation center and upper level analysis indicates the system is in a weak steering environment with low vertical wind shear." Weak steering means that nothing is available to push the storm in one way or another, which is why the Joint Typhoon Warning Center is expecting Olga to linger inland.
Further, animated visible satellite imagery has shown that Olga has kept tracking slowly southward over land.
The Australian Bureau of Meteorology noted in their Tropical Cyclone bulleting earlier today that "People between Burketown in Queensland and Cape Shield in the Northern Territory, including Groote Eylandt and Mornington Island, should take precautions." That's always good advice when a tropical cyclone is nearby.
Rob Gutro | EurekAlert!
Six-decade-old space mystery solved with shoebox-sized satellite called a CubeSat
15.12.2017 | National Science Foundation
NSF-funded researchers find that ice sheet is dynamic and has repeatedly grown and shrunk
15.12.2017 | National Science Foundation
DNA molecules that follow specific instructions could offer more precise molecular control of synthetic chemical systems, a discovery that opens the door for engineers to create molecular machines with new and complex behaviors.
Researchers have created chemical amplifiers and a chemical oscillator using a systematic method that has the potential to embed sophisticated circuit...
MPQ scientists achieve long storage times for photonic quantum bits which break the lower bound for direct teleportation in a global quantum network.
Concerning the development of quantum memories for the realization of global quantum networks, scientists of the Quantum Dynamics Division led by Professor...
Researchers have developed a water cloaking concept based on electromagnetic forces that could eliminate an object's wake, greatly reducing its drag while...
Tiny pores at a cell's entryway act as miniature bouncers, letting in some electrically charged atoms--ions--but blocking others. Operating as exquisitely sensitive filters, these "ion channels" play a critical role in biological functions such as muscle contraction and the firing of brain cells.
To rapidly transport the right ions through the cell membrane, the tiny channels rely on a complex interplay between the ions and surrounding molecules,...
The miniaturization of the current technology of storage media is hindered by fundamental limits of quantum mechanics. A new approach consists in using so-called spin-crossover molecules as the smallest possible storage unit. Similar to normal hard drives, these special molecules can save information via their magnetic state. A research team from Kiel University has now managed to successfully place a new class of spin-crossover molecules onto a surface and to improve the molecule’s storage capacity. The storage density of conventional hard drives could therefore theoretically be increased by more than one hundred fold. The study has been published in the scientific journal Nano Letters.
Over the past few years, the building blocks of storage media have gotten ever smaller. But further miniaturization of the current technology is hindered by...
11.12.2017 | Event News
08.12.2017 | Event News
07.12.2017 | Event News
15.12.2017 | Power and Electrical Engineering
15.12.2017 | Materials Sciences
15.12.2017 | Life Sciences