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

Version 2.0 November 2025

Glenorchy flood map showing 1pc Annual Exceedance probability inundation - see Glenorchy city webmapping for more details

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.

您有洪水風險嗎?

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.

What should I do to prepare?

  • Check the map to see whether your home or business is at risk of being flooded. If it is, you should have a plan for leaving during a flood event. For example, you might go to nearby family or friends who are not at risk of flooding. During a flood event, go to TasALERT.com or listen to ABC local radio to find out about evacuation centres or other places to shelter. 
  • Check if you can safely get to your home, work, or school during a flood. If you need to leave during a flood, make sure your route is safe or leave early before floodwaters rise.
  • Prepare your home or business to minimise possible flood damage.
  • Prepare a Home Emergency Plan. See 為緊急情況做好準備 – 為個人和家庭準備應急措施的指南。. 
  • If you have a business in the area, you should have a plan that covers flooding – see www.business.tas.gov.au. 

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

如果您居住在低窪地區或靠近水道,您的房屋可能會被淹沒。即使您的住所安全,您也可能需要繞過淹水地區,或者您的道路通行可能會被阻斷。切勿駕車進入或身處洪水之中。道路和橋樑可能會被沖毀或不安全。洪水期間請避免出行。.

知道該怎麼做可以拯救你的生命並保護你的財產。制定家庭緊急計畫是最好的準備方法之一。決定天氣和降雨的觸發條件,以便採取行動。.

中央氣象局預報、警報與觀測

Whenever 大雨 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.

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

了解警告和關鍵資訊

Keep aware of what is happening. Check forecasts, observations and warnings regularly.

 建議 (黃色): 已發生事件。目前沒有立即危險。請隨時更新最新情況,以防局勢變動。. 
觀察與行動(橘色): 威脅等級升高。情勢正在改變,您現在就必須採取行動保護您和您的家人。
緊急警告(紅色): 緊急警報為最高級別的警報。您可能身處危險之中,需要立即採取行動。任何延誤都可能危及您的生命。. 
社群更新(藍色): 針對特定事件或事故,向受影響社群提供的具體資訊和最新消息。.
事件(白色): an incident is the initial occurrence of an event before it becomes an emergency warning. As soon as an incident is reported, TasALERT publishes basic information.

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 塔斯警報 for advice.

Overview of flood prone areas from New Town Rivulet to the Bridgewater Bridge

了解你的風險,做好準備,盡可能降低風險,與他人聯繫,保持警惕並安全行動。.

洪水之前

1. 認識你的風險

塔斯馬尼亞經常發生洪水,可能造成廣泛且嚴重的損害。在過去 200 年裡,塔斯馬尼亞有 78 人死於與洪水相關的事件。本指南旨在幫助您了解您所在地區的洪水風險。.

2. 準備您的家戶

制定包含風暴和洪水應變計畫

思考一下在風暴或洪水來襲時你會怎麼做,意味著你準備得更充分,每個人都會更安全。制定一個家庭中的每個人都理解的緊急計畫。有檢查表可以幫助你思考你的計畫——請參閱 為緊急情況做好準備 – 為個人和家庭準備應急措施的指南。. 

Check your plan regularly and test that everyone in the household understands what would need to happen in a flood.

準備一個緊急救生包

準備好了

電池供電的收音機和手電筒,備用電池

重要資訊,例如您的緊急應變計畫

緊急電話號碼列表

食物和水

急救箱

橡膠手套或堅固的皮革手套

需要時打包

暖和的衣服、結實的鞋子或靴子

藥品、眼鏡或其他必需品

手機和充電器

寵物食品和他們需要的任何其他東西

照片和特別紀念品

重要文件,例如
– insurance papers
– passports and
– birth certificates

定期測試收音機和手電筒的電池。.

3. Reduce your risk from flooding where you can

  • 在購買、維護或開發房地產時,請考慮風暴、洪水和其他災害。.
  • 修剪或移除您家中、商家或您家附近有電力線的樹木和樹枝。.
  • 保持您的排水溝和排水管暢通。.

4. Connect with others

認識你的鄰居並參與你的社區。一個緊密的社區,在緊急情況下更安全、更有韌性,並有助於每個人在事後更好地恢復。檢查家人和鄰居是否安全,並了解正在發生的事情。.

期間

5. Keep up to date

隨時留意周遭狀況。定期查看天氣預報、觀測數據和警報。. 

6. Act Safe

  • 監督兒童.
  • 為可能的停電、停水或斷網做好準備。.
  • 檢查您的緊急救助包是否已準備就緒。.
  • 切勿靠近淹水區域,例如排水溝。. 永不 在洪水中有行走、玩耍、骑行或开车。你無法確定水下有什麼,或水有多深、流速有多快。20公分的湍急的洪水就很容易將人沖走並淹死。洪水可能很危險。.

您的房屋可能發生淹水時

  • 將家居物品放在高處,以盡量減少潛在損壞。.
  • 如果安全的話,請關閉水電和瓦斯。. 
  • 一種防止污水倒灌回屋內的好方法是將沙包放入塑膠袋中,然後用它們來堵塞馬桶、蓋住排水孔和水槽。.
  • 趁你還能安全脫困時趕快離開。.

如果你需要疏散

  • 請遵循 SES / 塔斯馬尼亞警方的建議。.  
  • 帶上你的緊急求生包。. 
  • 前往朋友或家人較安全的地方,或前往疏散中心。. 
  • 讓別人知道你去了哪裡。.

照顧好你的動物

在緊急情況下,您有責任照顧您的動物。如果您有寵物和其他動物,在洪水或其他緊急情況下,疏散的時間會更長。在洪水可能上漲之前,請及時將牲畜移離易受洪水影響的地區。更多資訊請參閱

Avoid travelling during and after storms

  • 不要去觀光。觀光客會延誤緊急服務並造成事故。.
  • 注意危險,例如
    • 路面积水
    • 損壞的電力線
    • 山崩
    • 損壞的道路
    • 倒下的樹木或屋頂鐵片。.
  • 切勿駕車通過淹水區域。洪水中的大多數死亡和救援事件都與駕車通過淹水區域有關。.
  • 緩慢行駛,並在不受洪水影響的道路上打開頭燈。.

之後

  • 請持續收聽 ABC 地方電台的最新消息、道路重新開放、社區會議等資訊。.
  • 如果您離開家,請勿在聯邦緊急事務局 (SES) 或塔斯馬尼亞警方告知您安全之前回家。.
  • 注意道路上的危險,例如路面上的泥沙或碎屑、道路/橋樑損壞以及正在進行清理和修復工作的工人。.

如果您的房屋已受損

  • 在檢查損壞時,請待在地面。小心掉落的樹木、碎玻璃、鬆動的屋頂或其它危險物品。.
  • 穿著堅固的靴子、手套和防護服。. 
  • 請使用手電筒,切勿在受洪水影響的建築物內使用火柴或蠟燭。. 
  • 將所有飲用水煮沸,直到被告知自來水再次安全為止。.
  • 在經註冊電工或燃氣技師測試安全之前,請勿開啟電力或燃氣。.
  • 如果您的房屋受損,需要暫時住在其他地方,請攜帶您的緊急應變包和寵物一同前往。
  • 如安全,請拍攝任何損壞的照片,並聯繫您的保險公司。.
  • 監督兒童.
  • 檢查鄰居是否安好。.

如需更多資訊,請前往 www.ses.tas.gov.au

保持獲取最新資訊及更多詳盡資料

Current warnings (TasAlerts) TasALERT.com

氣象局 bom.gov.au/tas/warnings

Emergency Broadcasters ABC 936AM

TAS SES Social Media facebook.com/sestasmania

SES – Preparing for Flood Emergencies

National Relay Service (NRS)

Glenorchy City Council                                            6216 6800

Glenorchy City Council Logo

免責聲明

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.

本指南中的資訊在出版時是最新資料。儘管已盡一切努力確保所呈現數據的有效性和準確性,但州緊急服務部門不對數據錯誤或遺漏負責。請參閱標準 塔斯馬尼亞州政府的版權與免責聲明 更多詳情.