Nav: Home

NASA sees Tropical Cyclone Olwyn nearing landfall in Australia

March 12, 2015

Tropical Cyclone Olwyn was close to making landfall in the northern region of Western Australia when NASA's Aqua satellite passed overhead. The Australian Bureau of Meteorology has posted several warnings.

Warnings in Western Australia on March 12 (and March 13 local time) include: A tropical cyclone warning from Roebourne to Geraldton, including Karratha, Barrow Island, Onslow, Exmouth, Coral Bay, Carnarvon, Denham, Kalbarri and adjacent inland parts of the western Pilbara, western Gascoyne and western Central West Districts. A tropical cyclone watch is in effect from Geraldton to Jurien Bay and extending inland to Paynes Find.

In addition to warnings and watches there are red, yellow and blue alerts posted. A red alert is in effect from Mardie to Onslow including Onslow (excluding Pannawonica). A yellow alert is up from Onslow to Overlander Roadhouse, including Exmouth, Coral Bay, Cape Cuvier, Carnarvon, Wooramel and Denham.

A blue alert is in effect for residents in coastal communities between Roebourne to Mardie, including Point Samson, Wickham, Roebourne, Dampier, Pannawonica and from Overlander Roadhouse to Kalbarri including Billabong Roadhouse.

The International Space Station's RapidScat instrument captured data on Olwyn's winds on March 11 from 06:40 to 8:13 UTC (2:40 a.m. to 4:13 a.m. EDT). RapidScat revealed sustained winds between 20-25 meters per second (44 mph/72 kph to 56 mph/90 kph) occurring north, east and south of the center.

The MODIS instrument aboard NASA's Aqua satellite captured a visible image of Tropical Cyclone Olwyn on March 12 at 06:30 UTC (2:30 a.m. EDT) as it neared the town of Exmouth. Exmouth is a town on the tip of the North West Cape of Western Australia. The MODIS image showed a thick band of thunderstorms wrapping from the north to the eastern quadrant and into the center. The Joint Typhoon Warning Center noted that satellite data shows ragged convection around the 15 nautical mile (17.2 miles/27.7 km)-wide eye.

On March 12, 2015 at 1500 UTC (11 a.m. EDT), Tropical cyclone Olwyn's maximum sustained winds were near 65 knots (75 mph/120 kph), making it a Category one hurricane on the Saffir-Simpson Wind Scale. It was centered near 21.9 south latitude and 114.0 east longitude, just 60 nautical miles (69 miles/111 km) north of Learmonth, Australia. It was moving to the south-southwest at 16 knots (18.4 mph/29.6 kph).

Olwyn is forecast to make landfall near Cape Cuvier in the early hours of Friday (local time) and then move in a southerly direction, over the western coastline of Western Australia and exiting the southwestern part of the territory on March 14 near Albany. For updated forecasts from ABM, visit: http://www.bom.gov.au/cyclone.
-end-


NASA/Goddard Space Flight Center

Related Australia Articles:

World's first ultrasound biosensor created in Australia
Most implantable monitors for drug levels and biomarkers invented so far rely on high tech and expensive detectors such as CT scans or MRI.
Old Irish 'clachan' found in South Australia
The oldest known Australian example of a communal type of Irish settlement has been 'unearthed' in a dusty paddock in rural South Australia.
Oral traditions and volcanic eruptions in Australia
In Australia, the onset of human occupation (about 65,000 years?) and dispersion across the continent are the subjects of intense debate and are critical to understanding global human migration routes.
When flowers reached Australia
University of Melbourne research has established when and where flowering plants first took a foothold.
Australia's got mussels (but it could be a problem)
One of the world's most notorious invasive species has established itself on Australia's coastlines, according to research from The University of Queensland.
Bushfires on east coast of Australia out of control
An unprecedented number of bushfires have erupted on the east coast of Australia due to hot, dry, windy weather.
Codeine misuse in Australia reduced by prescription-only changes
The move to prescription-only codeine in Australia has seen a 50 percent reduction in the monthly rate of codeine-related poisoning calls and halved codeine sales, finds new research led by the University of Sydney.
The danger of heat and cold across Australia
Cold temperatures are not nearly as deadly as heat, with around 2% of all deaths in Australia related to heat, according to new research from the University of Technology Sydney.
Retracing ancient routes to Australia
New insights into how people first arrived in Australia have determined the likely routes travelled by Aboriginal people tens of thousands of years ago along with the sizes of groups required for the population to survive in harsh conditions.
New 'king' of fossils discovered in Australia
Fossils of a giant new species from the long-extinct group of sea creatures called trilobites have been found on Kangaroo Island, South Australia.
More Australia News and Australia Current Events

Trending Science News

Current Coronavirus (COVID-19) News

Top Science Podcasts

We have hand picked the top science podcasts of 2020.
Now Playing: TED Radio Hour

Listen Again: Reinvention
Change is hard, but it's also an opportunity to discover and reimagine what you thought you knew. From our economy, to music, to even ourselves–this hour TED speakers explore the power of reinvention. Guests include OK Go lead singer Damian Kulash Jr., former college gymnastics coach Valorie Kondos Field, Stockton Mayor Michael Tubbs, and entrepreneur Nick Hanauer.
Now Playing: Science for the People

#562 Superbug to Bedside
By now we're all good and scared about antibiotic resistance, one of the many things coming to get us all. But there's good news, sort of. News antibiotics are coming out! How do they get tested? What does that kind of a trial look like and how does it happen? Host Bethany Brookeshire talks with Matt McCarthy, author of "Superbugs: The Race to Stop an Epidemic", about the ins and outs of testing a new antibiotic in the hospital.
Now Playing: Radiolab

Dispatch 6: Strange Times
Covid has disrupted the most basic routines of our days and nights. But in the middle of a conversation about how to fight the virus, we find a place impervious to the stalled plans and frenetic demands of the outside world. It's a very different kind of front line, where urgent work means moving slow, and time is marked out in tiny pre-planned steps. Then, on a walk through the woods, we consider how the tempo of our lives affects our minds and discover how the beats of biology shape our bodies. This episode was produced with help from Molly Webster and Tracie Hunte. Support Radiolab today at Radiolab.org/donate.