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!
New Study Will Help Find the Best Locations for Thermal Power Stations in Iceland
19.01.2017 | University of Gothenburg
Water - as the underlying driver of the Earth’s carbon cycle
17.01.2017 | Max-Planck-Institut für Biogeochemie
For the first time ever, a cloud of ultra-cold atoms has been successfully created in space on board of a sounding rocket. The MAIUS mission demonstrates that quantum optical sensors can be operated even in harsh environments like space – a prerequi-site for finding answers to the most challenging questions of fundamental physics and an important innovation driver for everyday applications.
According to Albert Einstein's Equivalence Principle, all bodies are accelerated at the same rate by the Earth's gravity, regardless of their properties. This...
An important step towards a completely new experimental access to quantum physics has been made at University of Konstanz. The team of scientists headed by...
Yersiniae cause severe intestinal infections. Studies using Yersinia pseudotuberculosis as a model organism aim to elucidate the infection mechanisms of these...
Researchers from the University of Hamburg in Germany, in collaboration with colleagues from the University of Aarhus in Denmark, have synthesized a new superconducting material by growing a few layers of an antiferromagnetic transition-metal chalcogenide on a bismuth-based topological insulator, both being non-superconducting materials.
While superconductivity and magnetism are generally believed to be mutually exclusive, surprisingly, in this new material, superconducting correlations...
Laser-driving of semimetals allows creating novel quasiparticle states within condensed matter systems and switching between different states on ultrafast time scales
Studying properties of fundamental particles in condensed matter systems is a promising approach to quantum field theory. Quasiparticles offer the opportunity...
19.01.2017 | Event News
10.01.2017 | Event News
09.01.2017 | Event News
23.01.2017 | Health and Medicine
23.01.2017 | Physics and Astronomy
23.01.2017 | Process Engineering