Tropical Cyclones in the Northern Territory. Introduction Tropical cyclones pose a serious threat to Northern Territory communities and industry.
Much of the Northern territory coastline being close to the equator, is in a region where cyclones tend to form. This can be an advantage as a cyclone forming near the coast will often cross the coast before it has a chance to substantially intensify. Tropical Cyclones. Current / Recent Storms 2013/14 season Operational Tropical Cyclone Warnings and tracking maps Tropical Cyclone Jack, AU/SIO [18 - 22 April 2014] - JTWC Warnings and Track | BoM Track Tropical Cyclone Ita, AU/SPAC [4 - 14 April 2014] - JTWC Warnings and Track Tropical Cyclone Ivanoe, SIO [4 - 6 April 2014] - JTWC Warnings and Track Tropical Cyclone Hellen, SIO [28 March - 1 April 2014] - JTWC Warnings and Track Tropical Cyclone Gillian, AU/SPAC/SIO [8 - 11, 15 - 16, 21 - 25 March 2014] - JTWC Warnings and Track.
Previous cyclones and floods. Cyclone Helen 2008 – urban and rural impact In the early hours of 5 January 2008, Cyclone Helen, a Category 2 cyclone, passed close to Darwin and rural areas.
‘Helen’ caused substantial damage to our suburbs - including significant disruption to the delivery of power, water and sewerage services - even though it did not track directly over Darwin. In almost every instance damage to Power and Water services was caused by falling trees and was not a failure of the systems themselves. At the time of the ‘all clear’ at 6.00am, more than 15,000 homes and businesses were without power.
Damage to the power network included broken high voltage and low voltage conductors, broken or twisted cross arms, bent and twisted power poles and some streetlight damage. Water and sewerage services sustained less damage, again mostly caused by trees falling on or uprooting equipment. Power and Water’s response Gunbalanya (Oenpelli) flooding 2007 - remote area impact. Storm Surge. All tropical cyclones crossing or passing near the coastline are capable of producing a damaging “storm surge”, which can increase the sea level for periods of several hours and affect 100’s of km of coastline either side of the storm track.
The storm surge is caused by the extreme winds surrounding the eye of the cyclone causing strong currents, the low pressure in the centre and how it interacts with the profile of the continental shelf and the coastline. Wide shallow bays are likely to experience the highest surge, especially if they then narrow into river estuaries, while headlands or islands in deepwater are generally less affected. The following schematic diagram shows that the full impact of the cyclone on the sea level will be made up from a number of different elements: Next, the extreme winds can also create abnormally high waves that ride on top of the combined tide and surge level, sometimes reaching into areas that do not normally experience ocean swell. Cyclone Tracy - Dept of Arts and Museums. Previous Cyclone Tracy Exhibition | Cyclone Tracy Subject Guide | Cyclone Tracy images and information in Territory Stories Northern Territory Library Cyclone Tracy Exhibition from our own collections On 24 December 1974 Cyclone Tracy virtually destroyed Darwin.
The next morning, most of Darwin's population of 48 000 people found themselves homeless, due to the largest natural disaster in Australia’s written history. Northern Territory Library’s Cyclone Tracy collection features original records, photographs and documents, including the full list of evacuees of nearly 33,000 names, recording one of the biggest logistical peacetime exercises ever undertaken in Australia. Clouds, thunderstorms and climate change. Overview Fly into a massive thunderstorm with pilots and scientists as they study how global warming could affect storms.
Learn how changes in ice clouds due to climate change could provide clues to future weather patterns. See scientists capture data on the beginning of an unusual cyclone. This excerpt is from a documentary on the International Cloud Experiment (ICE). 5 mins 58 secs Source: Thunderheads | Learning area: Science | Secondary: Year 10 Transcript 00:00:03:01NARRATOR:The Proteus takes off for a closer look at what remains of the monster Hector. ...Read more > About this resource Acknowledgements Source: Thunderheads Date first broadcast: 29 June 2005 Cite this resource You can use this information to reference this item. Bibliographic details for 'Tracking ice clouds': Thunderheads, ' Tracking ice clouds', ABC Splash abcspla.sh/m/30123 24 April 2014 Copyright information. TC Yasi « Contour Education. Tropical Cyclone Yasi has been and gone and our far northern cousins are left with quite a clean up.
I drove up from Melbourne to Brisbane over Christmas, narrowly avoiding the locusts. I arrived in Brisbane for the most devastating (economically) natural disaster in Australia’s history and now north Queensland has been battered by what could have been the biggest cyclone disaster in Australia – it all sounds a bit biblical. There are a great many resources on Yasi on the web and I’ll endeavour to list the best spatial resources on this blog, much like I did for the Brisbane floods. Feel free to add any resources in the comments section or email them to me. To kick us off we have this great video from The Weather Chaser showing TC Yasi form, move across the Queensland coast and then slowly dissipate in central Australia.
Cyclone Yasi. Overview Imagine your house being battered by 285 km per hour winds!
That is what happened when Cyclone Yasi, a category 5 cyclone, hit far north Queensland in 2011. Watch this clip showing Yasi unleashing its fury. Find out about how the locals prepared themselves, and what they found in the aftermath. 4 mins 5 secs Source: Behind The News (BTN) | Learning area: Science | Primary: Year 6 This media resource contains content that shows images of natural disaster. Transcript.