Riverine and flash flooding information for areas between Barossa Creek and Islet Rivulet, including Humphries Rivulet and surrounding minor waterways.

See also related flood guides for

• Moonah/ Derwent Park
• Claremont dan kawasan sekitarnya

Version 2.1 November 2025 – See PDF version

To see map information in detail, go to www.gcc.tas.gov.au/residents/your-home/floods-and-stormwater/

Understand your flood risk and get ready

Parts of Glenorchy city and suburb and Montrose are at risk of flooding from

• Barossa Creek
• Humphries Rivulet
• Islet Rivulet and
• minor waterways in between.

The area is a floodplain, which means it is a high-risk area for flooding.

It is important you understand what a flood can look like in your area so you can be prepared. You are likely to have a flood that causes significant damage in the area at least once in your lifetime. Tasmanians need to prepare for flood events that may not happen often as well as the minor flooding they may have experienced. 

Glenorchy and Montrose are prone to flash flooding, depending on how rain falls across Kunanyi/ Mount Wellington. This means there can be little warning before waterways flood. There can also be stormwater run-off in other places if there is heavy rain. This can be difficult to predict.

Flooding may isolate parts of Glenorchy for up to 6 hours but is more likely to be for just a few hours. You should prepare for isolation plus power or telecommunications outages.

Some roads around Glenorchy and Montrose may flood. Traffic is likely to be congested. Travel may be difficult or impossible. If you are safe at home or somewhere else you are at the time, it is usually best you stay there until the flooding goes down. If you need to leave during a flood, make sure your route is safe.  If your home could become flooded, it is a good idea to think about

• where you would go, and
• how you could get there.

Adakah anda berisiko banjir?

Past flooding events around Glenorchy include:

• May 2018 – The Southern Tasmanian Extreme Weather Event caused flooding around Hobart. There was 236mm of rain on Kunanyi/ Mount Wellington. 
• April 1960 – About 200mm of rain fell over 3 days causing damage across Hobart.
• June 1947 – Two separate flooding events impacted Glenorchy and Montrose.

Apa yang patut saya buat?

• • Check the map to see whether your home or business could flood.

• • Nilai rumah atau perniagaan anda dan bersiap sedia untuk meminimumkan kemungkinan kerosakan banjir.

• • Periksa sama ada anda dapat sampai ke rumah, tempat kerja atau sekolah dengan selamat semasa banjir.

• • Prepare a Home Emergency Plan. Consider if you need to evacuate before a flood. See Bersedia untuk Kecemasan– Panduan untuk individu dan isi rumah bersiap sedia menghadapi kecemasan.

• • If you are a primary producer, the Farm Flood Readiness Kit provides advice on preparing for a flood to help protect your business and stock.

• • If you run a business or other organisation, check out the Tasmanian Government’s Emergency Ready Business tool online

• • Sekiranya anda terpencil dan perlu akses kepada perkhidmatan, anda mungkin perlu berpindah lebih awal.

• • Jika anda berkhemah di kawasan yang mudah dinaiki banjir, pastikan anda sentiasa mendapatkan maklumat dan berpindah ke tempat yang lebih tinggi awal jika banjir berkemungkinan berlaku.

Floods like the one shown in the map, or worse, will occur again. No two floods are the same.

If you live in a low-lying area or near a watercourse, your house may flood. Even if your home is safe, you may need to detour around flooded areas or your road access may be cut. Never drive into or enter flood waters. Roads and bridges may be washed out or unsafe. Avoid travel during floods.

Mengetahui apa yang perlu dilakukan boleh menyelamatkan nyawa anda dan membantu melindungi harta benda anda. Mempunyai Pelan Kecemasan Rumah adalah salah satu cara terbaik untuk bersiap sedia. Tentukan pemicu cuaca dan hujan untuk masa bertindak.

Bureau of Meteorology Forecasts, Warnings, and Observations

Whenever heavy rain is expected in an area, the Bureau issues

• a Flood Watch
• Severe Weather Warning and/or
• Thunderstorm Warning for heavy rainfall that may lead to flash flooding.

The time between the warning and heavy rain falling can vary from an hour to 24 hours or more. It is best to act on the warnings from the Bureau of Meteorology rather than wait for local flooding alerts.

Tracking Rainfall on Kunanyi/ Mount Wellington can help predict flooding around Glenorchy and Montrose.

Ia Mt Koonya Radar is useful to see when and where heavy rainfall is falling.

Fahami amaran dan maklumat penting

Sentiasa peka dengan apa yang berlaku di sekeliling anda. Periksa ramalan, pemerhatian dan amaran dengan kerap.

• • TasALERT.com

• • stesen radio ABC tempatan anda atau

• • yang Bureau of Meteorology’s website.

	Nasihat (Kuning) Satu insiden telah berlaku. Tiada bahaya segera. Nantikan perkembangan sekiranya keadaan berubah.
	Tonton dan Bertindak (Oren): Terdapat peningkatan tahap ancaman. Keadaan sedang berubah dan anda perlu mula mengambil tindakan sekarang untuk melindungi diri anda dan keluarga anda
	Amaran Kecemasan (Merah): Amaran Kecemasan adalah tahap amaran tertinggi. Anda mungkin dalam bahaya dan perlu mengambil tindakan segera. Sebarang kelewatan kini meletakkan nyawa anda dalam risiko.
	Kemas kini komuniti (Biru): Maklumat dan kemas kini khusus untuk komuniti yang terjejas mengenai peristiwa atau insiden tertentu.
	Insiden (Putih) insiden adalah kejadian awal sebelum ia menjadi amaran kecemasan. Sebaik sahaja insiden dilaporkan, TasALERT menerbitkan maklumat asas termasuk jenis dan lokasi insiden.

Flood levels around Glenorchy city and suburb

While no two floods are the same, the following descibes what may happen if there is flooding around Glenorchy and surrounding areas. Even if your property is not flooded, you need to think about access.  The rainfall amounts below that might cause such an event are examples: other levels of rainfall can cause flooding depending on

• how heavy it is
• how long the rain lasts
• how wet the ground is beforehand
• how full dams are, and
• where the rain falls.

A Minor Flood

Glenorchy area has a 5% chance or more of minor flooding happening in a year (Annual Exceedance Probability) This might result from, for example,

• up to about 68mm over 6 hours on Kunanyi/ Mount Wellington, and/or
• about 50mm around Glenorchy.

Minor flooding may impact

• some low-lying areas, around Grove Road,
• some sections of the intercity cycleway and foreshore areas at high tide.

A Moderate Flood

Glenorchy has between about 5% and 1% chance of moderate flooding happening in a year. This might result from, for example,

• between 69-86mm in 6 hours on Kunanyi/ Mount Wellington, or
• between about 50-65mm around Glenorchy.

Moderate flooding may flood some areas of

• Brooker Highway
• Grove Road surrounds
• Barossa Road/ Kalang Avenue
• Main Road
• Constance Avenue near the Oval
• Other low-lying properties near waterways – see the maps for more details.

Areas particularly at risk include

• between Terry St and Eady St
• some areas of Tolosa St
• the end of Moore Park Drive
• Nambour Place and surrounds
• Fleming Road and surrounds
• Wright Avenue
• Booth Avenue
• Some parts of Caulfield Avenue, Arnold Street, and McGough Street
• The Northgate carpark

Some school grounds may be inundated at Dominic College, Guilford Young, and Glenorchy Primary School.

A Major Flood

Glenorchy has about a 1% chance or less of major flooding in a year in the current climate. This may result from, for example,

• more than about 87mm in 6 hours or more on Kunanyi/ Mount Wellingto,n and/or
• more than 65mm around Glenorchy.

There would be extensive areas of flash flooding around Glenorchy CBD and surrounding areas.

• Many more areas around Glenorchy CBD, Grove Road and other low-lying areas are likely to be flooded – see maps for more details.
• While most people will be safe at home until flood waters go down, those around Grove Road, Glenorchy CBD and south of Barossa Creek can move away from flooding towards the Showgrounds and Dowsings Point if needed.
• Those north of Barossa Creek and south of Islet Rivulet are likely to be isolated for some hours until flood waters go down. Listen to ABC local radio or go to TasALERT.com for advice on where to go if you need to leave your home.

Unless there is an emergency or you are not safe where you are, you should shelter where you are during a flooding event.  Floods around Hobart rarely last more than a few hours. Traffic is likely to be very congested. Listen to ABC local radio or go to TasALERT for advice.

 

Go to TasALERT.com or listen to ABC local radio for detailed up to date information and advice during heavy rainfall events.

Ketahui risiko anda, bersiap sedia, kurangkan risiko di mana boleh, berhubung dengan orang lain, sentiasa berwaspada dan bertindak selamat.

Sebelum banjir

Bersedia untuk Kecemasan – Panduan untuk individu dan isi rumah bersiap sedia menghadapi kecemasan.

Ketahui risiko anda

Banjir sering berlaku di Tasmania dan boleh menyebabkan kerosakan yang meluas dan ketara. Dalam tempoh 200 tahun kebelakangan ini, terdapat 78 kematian berkaitan banjir di Tasmania. Panduan ini adalah untuk membantu anda memahami risiko banjir di kawasan anda.

2. Sediakan rumah anda

Miliki pelan kecemasan yang meliputi taufan dan banjir

Berfikir tentang apa yang akan anda lakukan semasa ribut atau banjir bermakna anda lebih bersedia dan semua orang lebih selamat. Miliki pelan kecemasan yang difahami oleh semua orang dalam isi rumah anda. Terdapat senarai semak untuk membantu anda memikirkan pelan anda – lihat Bersedia untuk Kecemasan – Panduan untuk individu dan isi rumah bersiap sedia menghadapi kecemasan.
Periksa pelan anda dengan kerap dan uji ia dengan setiap ahli isi rumah memikirkan senario banjir yang mungkin menjejaskan isi rumah anda.

Sediakan Kit Kecemasan

Uji bateri dalam radio dan lampu suluh secara berkala.

3. Kurangkan risiko anda daripada banjir di mana anda boleh

• • Pertimbangkan tentang ribut, banjir dan bahaya lain semasa membeli, menyelenggara atau membangunkan hartanah.

• • Potong atau alih pokok dan dahan yang menjulur ke atas rumah, perniagaan anda atau berdekatan talian elektrik di kawasan anda.

• • Pastikan saluran air dan perparitan anda bersih.

4. Berhubung dengan orang lain

Know your neighbours and get involved in your community. A connected community is a safer and more resilient community in an emergency and can help everyone recover better afterwards. Check that family and neighbours are safe and aware of what’s happening.

Semasa

5. Keep up to date

Sentiasa peka dengan apa yang berlaku di sekeliling anda. Periksa ramalan, pemerhatian dan amaran dengan kerap.

• • TasALERT

• • stesen radio ABC tempatan anda atau

• • yang Biro Meteorologi laman web.

6. Act Safe

• • Mengawasi kanak-kanak.

• • Bersiap sedia untuk kemungkinan gangguan bekalan elektrik, air atau internet.

• • Pastikan peti kecemasan anda bersedia untuk digunakan.

• • Jauhi kawasan yang dinaiki air seperti longkang. JANGAN SESEKALI berjalan, bermain, menunggang atau memandu dalam air banjir. Anda tidak selalu dapat melihat apa yang ada di bawah air atau betapa dalamnya atau derasnya air itu. Sangat mudah untuk dihanyutkan dan lemas dalam air yang bergerak pantas sedalam 20sm. Air banjir boleh berbahaya.

Bila rumah anda mungkin dinaiki air

• • Letakkan barangan isi rumah di tempat yang tinggi untuk meminimumkan kerosakan yang mungkin berlaku.

• • Padamkan bekalan elektrik dan gas jika selamat untuk berbuat demikian.

• • Cara yang baik untuk menghentikan aliran kumbahan masuk semula ke rumah anda ialah dengan meletakkan beg pasir di dalam beg plastik dan menggunakannya untuk menyumbat tandas serta menutup longkang dan singki.

• • Pergi selagi anda boleh keluar dengan selamat.

Jika anda perlu berpindah

• • Ikuti nasihat dari SES / Polis Tasmania.

• • Ambil kit kecemasan anda.

• • Pergi ke tempat rakan atau keluarga yang lebih selamat atau pusat pemindahan.

• • Beritahu orang lain ke mana anda telah pergi.

Jaga haiwan peliharaan anda

You are responsible for your animals in an emergency. If you have pets and other animals it will take you longer to evacuate in a flood or other emergency. Move livestock from flood prone areas well before flood waters may rise. For more information see

• • Panduan RSPCA untuk persediaan haiwan dalam kecemasan

• • yang Kit kesiapsiagaan banjir ladang pengeluar utama.

Elakkan melancong semasa ribut dan selepas ribut

• • Jangan melancong. Pelancong melambatkan perkhidmatan kecemasan dan menyebabkan kemalangan.

• • Berhati-hatilah terhadap bahaya seperti

    • • air di atas jalan
    • • talian elektrik rosak
    • • tanah runtuh
    • • jalan rosak
    • • pokok tumbang atau bumbung besi.

• • Jangan memandu melalui air banjir. Kebanyakan kematian dan penyelamatan dalam banjir disebabkan oleh orang yang memandu melalui air banjir.

• • Pandu perlahan dan pasang lampu hadapan anda di jalan yang tidak dinaiki banjir.

Selepas

• • Terus ikuti perkembangan terkini dari ABC Local Radio, pembukaan semula jalan, mesyuarat komuniti, dll.

• • Jika anda meninggalkan rumah anda, jangan pulang ke rumah sehingga SES atau Polis Tasmania memberitahu anda selamat untuk berbuat demikian.

• • Berhati-hatilah terhadap bahaya jalan raya, seperti lumpur atau serpihan di jalan, jalan/jambatan yang rosak dan kru yang sedang bekerja membersihkan dan membaiki.

Jika rumah anda rosak

• • Tinggal di aras tanah semasa memeriksa kerosakan. Berhati-hatilah dengan pokok tumbang, kaca pecah, bumbung yang longgar atau bahaya lain.

• • Pakai but kuat, sarung tangan dan pakaian pelindung.

• • Gunakan lampu suluh, jangan gunakan mancis atau lilin di dalam bangunan yang dinaiki banjir.

• • Rebus semua air minuman sehingga anda diberitahu air paip selamat semula.

• • Do not turn on it is tested by a licensed electrician or gas fitter for safety.

• • Jika rumah anda rosak dan anda perlu menginap di tempat lain, bawa bersama kit kecemasan dan haiwan peliharaan anda

• • Ambil gambar kerosakan jika selamat untuk anda berbuat demikian dan hubungi syarikat insurans anda.

• • Mengawasi kanak-kanak.

• • Periksa jiran dalam keadaan baik.

Untuk maklumat lanjut, sila layari www.ses.tas.gov.au

Kekal dimaklumkan dan maklumat lanjut

Current warnings – TasALERT.com

Biro Meteorologi 

Emergency Broadcasters – stesen radio ABC tempatan anda

TASSES Social Media – facebook.com/sestasmania

Persediaan Menghadapi Kecemasan Banjir ses.tas.gov.au/flood-plan/

Perkhidmatan Geganti Kebangsaan (NRS) relayservice.gov.au

Glenorchy City Council                                            6216 6800

Local Emergency Broadcasters ABC 936AM

Penafian

The maps show potential flooding risks from consistent levels of rainfall across catchments, such as a 1% Annual Exceedance Probability (AEP). In flooding events, rainfall is likely to be more inconsistent across a catchment, so these flood maps should be considered indicative only. The mapped areas of flood risk show higher probability of inundation. Other areas have lower probability of flooding, but in severe and rare events (rarer than 1%AEP), other lower areas may be also at risk of inundation.

Maklumat dalam panduan ini adalah terkini pada tarikh penerbitannya. Walaupun segala usaha telah dibuat untuk memastikan kesahihan dan ketepatan data yang dibentangkan, Perkhidmatan Kecemasan Negeri tidak bertanggungjawab ke atas kesilapan atau ketinggalan data. Sila lihat piawaian Hak Cipta dan Pernyataan Penafian Kerajaan Tasmania untuk maklumat lanjut.