Riverine flooding information for areas around the Huon River and its tributaries above Ranelagh, including Glen Huon, Judbury, Lonnavale, Tahune and surrounds.

Version 1.0 August 2024

 若要更詳細地查看地圖，, 查看塔斯馬尼亞策略性洪水圖.

The Huon River and its tributaries can flood low lying properties above Huonville/ Ranelagh and isolate some areas. 

Parts of Glen Huon Road and Glen Huon are prone to flooding, as are many minor roads around the area.

Areas upstream from Judbury and areas south of the river may become isolated during a major flood.

For those travelling in the area, Rivers Edge campground can flood and may become isolated in major flood events, and the Tahune area may become isolated in moderate to major flood events.

The maps show the expected flood level around the upper Huon catchment that has a 1% chance of happening any year (1% annual exceedance probability (AEP)). You are likely to experience a flood of this size at least once in your lifetime.

Heavy rain in the South West wilderness can cause the Huon River to flood even if there is little rain around people’s homes in the Huon Valley. Rapid snowmelt sometimes increases Huon River flooding. High rainfall lower in the Huon River catchment and its tributaries can also add to flooding. Huon River tributaries such as the Russell River and the Arve River can also flood, depending on where rain falls.

Storm water run-off can also impact properties when there is very heavy local rain.

Edgar and Scotts Peak Dam have minimal impacts on Huon River flood levels.

您有洪水風險嗎？

The Huon Valley has a long history of major flooding, including in 1901, 1947, 1958, 1960, 1975, 1996, 2016 and 2022. The area often has minor flooding.

我應該做什麼？

• Check the map opposite to see whether your home or business is likely to be at risk of flooding during a flood.
• Prepare a Home Emergency Plan, including whether you need to evacuate in advance of a flood, where you will go and what you need to take. 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.  Business Tasmania can help– see www.business.tas.gov.au/manage_a_business/ 
• If you need to evacuate or return home during a flood, make sure your route is safe.
• Asses your home or business and know what you need to do to prepare it to minimise possible damage from water inundation.

Floods like the one shown on 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

The Huon River has several real-time river level gauges and a network of rainfall gauges that can support flood warnings.  Floodwater at Judbury generally takes a couple of hours to reach Huonville. Monitor rainfall totals and river rises at www.bom.gov.au/tas/flood/ .

Whenever there may be rain that leads to flooding along the Huon River the Bureau will issue:

• A Flood Watch – a “heads up” early advice of forecast weather that may lead to flooding.
• A Flood Warning – predicting when flooding is likely to develop at the gauge locations. These warnings may

River gauges	Alert	Minor	Moderate	Major
Huon River at Harrison’s Opening	5.0	5.0	n/a	n/a
Huon River at Tahune Bridge		4.0	5.0	6.3
Huon River at Judbury	3.0	4.0	5.3	6.0
Huon River at Huonville	2.5	3.0	3.6	4.0

There are no formal warning levels for other waterways in the area.

Whenever 大雨 is expected in an area that may lead to flooding, the Bureau issues

• 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 around Mountain River and Skinners Creek.

Tracking Rainfall on Kunanyi/ Mount Wellington can help predict flooding around Mountain River. Go to www.bom.gov.au/tas/ .

這 Mt Koonya Radar is useful to see when and where heavy rainfall is falling and is available on the BOM Weather app and website.

Download BOM Weather app and set your location to receive push notifications of warnings (more details at www.bom.gov.au/app/) .

Listen to ABC 936AM or go to tasalert.com for warnings.

了解警告和關鍵資訊

隨時留意周遭狀況。定期查看天氣預報、觀測數據和警報。.

• TasALERT.com
• 您當地的 ABC 電台 或
• 這 氣象局 網站.

	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 published basic information including the type and location of incident.

Flood levels around the Huon River

While no two floods are the same, the following table shows what is likely to happen if there is flooding around Mountain River. Even if your property is not flooded, you need to think about access.

The rainfall amounts that might cause such an event are examples. Other levels of rainfall can cause flooding depending on

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

Minor flooding (Above 3m at Tahune, 4m at Judbury)

• Water spills over riverbanks and covers nearby low-lying areas.  Agricultural and horticultural land on river flats may be at risk.  Livestock should be moved from these areas.
• There may be some flooding of back roads or forestry roads, tracks and low level bridges, for example, Southwood Rd and Upper SheOak Road.
• Some low-lying properties may have flooding around buildings below floor level.

Moderate flooding (above 5m at Tahune, 5.3m at Judbury)

• There is more extended and deeper flooding of agricultural and horticultural land along the river flats with some stock losses if not moved. There may be damage to fences.
• There is likely to be more extensive flooding in low-lying sections of minor roads, including for example Charlies Road as well as Lorkins Rd, Southwood Road and SheOak Road.
• Flooding may reach above floor heights of some low-lying houses and other buildings,
• Some properties on minor roads above low-lying waterway crossings may become isolated.

Major flooding (Above 6.3m at Tahune, 6m at Judbury, starting from about a 5-10% chance of happening any year)

This type of event is similar to the 2016 flood event, but can differ depending on where rain falls.

• Parts of Glen Huon Road west from Huonville Bridge and surrounding low-lying properties begin to flood. The Huonville Golf Club begins to flood.
• The Huon Highway at Huonville is likely cut, isolating areas on the south side of the river that cannot be accessed via Judbury.
• Depending on where heavy rain falls, the Huon Highway south of Grove may be inundated for a short time.
• Low lying properties along the Huon River flood plain and possibly other minor waterways are at risk of being flooded above floor level. It may be necessary to evacuate some dwellings.
• Lonnavale Road at Judds Creek and Russell River crossings plus the campground at Lonnavale flood, isolating surrounding properties.
• Tahune Airwalk and surrounds may be isolated.
• Many back roads have areas that are flooded.
• The North Huon Road is not prone to flooding, but there if there is heavy rain, there are risks of fallen trees, landslides and hazardous driving conditions anywhere.
• While the Judbury Bridge may not be inundated, the approaches to the bridge may be.
• Many minor waterway crossings may be impassable due to flooding or should be considered hazardous. This can isolate areas above.
• There is likely to be crop and stock loss unless the stock are moved to higher ground.

Major flooding (About 9.5m at Judbury, about a 1% chance of happening any year)

The Huon Valley has not experienced this level of event in recent years. However, everybody should be prepared for it.  Parts of northern Tasmania have had this level of event several times in the past 10 years, and the chance of such events happening is increasing with climate change. Note many of these impacts will start in less severe events, for example those with a 5% or 2% chance of happening any year. In addition to the impacts listed above:

• There is extensive flooding along Glen Huon Road and low-lying properties.
• Many low-lying areas along back roads and forestry roads have high levels of flooding, including the Arve River picnic ground and Keoghs Creek Nature Trail.
• Lonnavale is likely to be isolated, with flood risks to low-lying properties to above floor height.
• Parts of Judbury may be flooded, including Calvert Park and some properties near Judds Creek.

While North Huon Road is largely not prone to flooding, there may be water over the road at the Call Creek crossing between Waggs Gully Road and Browns Road.

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

為緊急情況做好準備 – 為個人和家庭準備應急措施的指南。. 

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。.
定期檢查您的計劃，並讓家中的每個人都設想一次可能影響您家的洪水情況來進行測試。.

準備一個緊急救生包

定期測試收音機和手電筒的電池。.

3. 在可能的情況下，降低您遭受洪水侵襲的風險

• 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. 與他人建立聯繫

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。.

See for example the Huon Valley Good Neighbour project.

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。. 

• 塔斯警報 
• 您當地的 ABC 電台 或
• 這 氣象局 網站.

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

• RSPCA 應對緊急情況動物的指南
• Huon Valley Council’s advice on preparing an emergency pet plan
• 這 主要生產者農場洪水準備工具箱.

請避免在風暴期間和風暴之後旅行

• 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) alerts.tas.gov.au

氣象局 (BoM)

Emergency Broadcasters ABC 936AM

TASSES Social Media

• facebook.com/sestasmania

Preparing for Flood Emergencies ses.tas.gov.au/plan-prepare/flood 

Huon Valley Council huonvalley.tas.gov.au 6264 0300

國家轉接服務 (NRS) relayservice.gov.au

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.