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FLOOD WARNING SYSTEM
This brochure describes the flood
warning system operated by the Australian Government, Bureau of
Meteorology for the Haughton River. It includes reference information
which will be useful for understanding Flood Warnings and River Height
Bulletins issued by the Bureau's Flood Warning Centre during periods of
high rainfall and flooding. |
Haughton River at
Hustons Farm |
Contained in this
document is information about: (Last updated June 2008) |
The Haughton River catchment covers an area of approximately 1850 square kilometres and includes the major tributaries, Reid River and Major Creek. Barratta Creek is the overflow for both the Haughton and Burdekin Rivers. The headwaters of the Haughton catchment rise in the Hervey Range. As this is a relatively small catchment and due to the rapid response of the catchment to rainfall, travel times are very short. Heavy rainfalls over the catchment are capable of causing major flooding of agricultural areas adjacent to the waterways and major flooding of residential and commercial areas in Giru. The township has a levee constructed around the town to protect it from floods up to about 2.30 metres on the flood gauge.
Flood records for Giru only go back to 1978. The highest flood on record occurred in February 2008 with a recorded peak height of 3.03 metres on the flood gauge, causing widespread inundation of the Giru township.

The Burdekin Shire Council, in conjunction with the Bureau of Meteorology operates a flood warning system for the Haughton River catchment. The ALERT network consists of automatic rainfall and river height stations which regularly forward data via radio telemetry to a base station located at the Council office in Ayr and the Bureau's Flood Warning Centre in Brisbane. The system provides early warning of heavy rainfall and river rises in the catchment and enables more accurate and timely flood warning and forecasts. The balance of the network consists of volunteer rainfall and river height observers, who forward observations by telephone when the initial flood height has been exceeded at their station. The Department of Natural Resources and Water also operates a number of automatic telephone telemetry stations throughout the catchment.
The Bureau's Flood Warning Centre issues Flood Warnings and River Height Bulletins for the Haughton River catchment during flood events. Quantitative flood forecasts are issued when moderate flood levels are likely to be exceeded at Giru, with an objective to provide between 3 and 12 hours warning of these flood levels.
The Local Government is able to provide further information on flooding in your area of the Haughton River catchment. The Burdekin Shire Council monitors Haughton River floods via the ALERT system.
The Haughton ALERT Flood Warning System was completed in 1993 as a co-operative project between the Bureau of Meteorology and the then Thuringowa City Council. The system, now transferred to Burdekin Shire Council, comprises of a network of rainfall and river height stations which report via VHF radio to a base station computer located in the Council office in Ayr. The stations send reports for every 1 millimetre of rainfall and every 50 millimetre change in river height.
In consultation with the Burdekin Shire Council, the Bureau issues Flood Warnings for the Haughton River.
The base station computer in the Burdekin Shire Council office collects the data and has software that displays it in graphical and tabular form. This data is also received by the Bureau's Flood Warning Centre where it is used in hydrologic models to produce river height predictions.
The Bureau of Meteorology issues Flood Warnings and River Height Bulletins for the Haughton River catchment regularly during floods. They are sent to radio stations for broadcast, and to local Councils, emergency services and a large number of other agencies involved in managing flood response activities. Flood Warnings and River Height Bulletins are available via :
RadioLocal response organisations
These include the Councils, Police, and State Emergency Services in the local area.Internet/World Wide Web
Flood Warnings, River Height Bulletins and other weather related data is available on the Bureau's Web page at http://www.bom.gov.au . The Queensland Flood Warning Centre website is http://www.bom.gov.au/hydro/flood/qldTelephone Weather
Flood Warnings are available through a recorded voice retrieval system, along with a wide range of other weather related and climate information.| Main Directory | Phone | 1900 955 360 |
| Flood Warnings | Phone | 1300 659 219 |
Telephone Weather Services Call Charges: 1900 numbers: 77c per minute incl. GST; 1300 numbers: Low call cost - around 27.5c incl. GST. (More from international, satellite, mobile or public phones) |
Flood Warnings and River Height Bulletins contain observed river heights for a selection of the river height monitoring locations. The time at which the river reading has been taken is given together with its tendency (e.g. rising, falling, steady or at its peak). The Flood Warnings may also contain predictions in the form of minor, moderate or major flooding for a period in the future. River Height Bulletins also give the height above or below the road bridge or causeway for each river station located near a road crossing.
One of the simplest ways of understanding what the actual or predicted river height means is to compare the height given in the Warning or Bulletin with the height of previous floods at that location.
The table below summarises the flood history of the Haughton River catchment - it contains the flood gauge heights of the more significant recent floods.
River height station |
Jan
|
Mar
|
Feb
|
Mar
|
Jan
|
Aug
|
Apr
|
Feb
|
Feb
|
| Flora Valley | 8.90 | 8.20 | 7.70 | 7.70 | 7.05 | 6.50 | - | 8.90 | - |
| Mt Piccaninny | 9.09 | 7.73 | 7.81 | 6.65 | 5.75 | 5.90 | 7.83 | 9.13 | 10.51 |
| Powerline | 11.50 | 10.87 | 10.41 | 9.84 | 9.72 | 9.12 | 10.62 | 11.07 | 12.12 |
| Hustons Farm | 10.54 | 9.46 | 9.30 | 9.85 | 8.25 | 8.25 | - | - | - |
| Giru | 1.77* | 2.44* | 2.53* | 2.65 | 2.72 | 2.73 | 2.85 | 2.94 | 3.03 |
Historical flood heights for all river stations in the Haughton River catchment Floodwarning network, as shown on the map, are available from the Bureau of Meteorology upon request.
|
HAUGHTON RIVER CATCHMENT - ASSESSMENT OF THE FLOOD POTENTIAL Major flooding requires a large scale rainfall situation over the Haughton River catchment. However, the following can be used as a rough guide to the likelihood of flooding in the catchment: Average catchment rainfalls of in excess of 200mm in 24 hours may cause moderate to major flooding and traffic disabilities to develop, particularly in low-lying areas of the Haughton River catchment downstream of Hustons Farm, extending into the Giru township and Haughton River delta area. Average catchment rainfalls of in excess of 300mm in 24 hours may cause major flooding and traffic disabilities to develop, particularly in low-lying areas of the Haughton River catchment downstream of Hustons Farm, extending into the Giru township and Haughton River delta area. |
At each flood warning river height station, the severity of flooding
is described as minor, moderate or major according to the effects caused
in the local area or in nearby downstream areas. Terms used in Flood
Warnings are based on the following definitions.
| Major Flooding : This causes inundation
of large areas, isolating towns and cities. Major disruptions occur
to road and rail links. Evacuation of many houses and business premises
may be required. In rural areas widespread flooding of farmland
is likely.
Moderate Flooding : This causes the inundation of low lying areas requiring the removal of stock and/or the evacuation of some houses. Main traffic bridges may be closed by floodwaters. Minor Flooding : This causes inconvenience such as
closing of minor roads and the submergence of low level bridges
and makes the removal of pumps located adjacent to the river necessary.
|
|
The table below shows the flood classifications for selected river height stations in the Haughton River catchment.
River Height Station |
First Report Height |
Crossing Height |
Minor Flood Level |
Crops & Grazing |
Moderate Flood Level |
Towns and Houses |
Major Flood Level |
| Flora Valley | 3.0 | 12.0 (B) | 5.0 | 5.0 | 5.5 | 5.0 | 6.0 |
| Mt Piccaninny | - | - | 3.0 | - | 4.0 | - | 5.0 |
| Powerline | - | - | 5.0 | - | 6.0 | - | 8.0 |
| Hustons Farm | 3.0 | 6.1 (B) | 4.0 | 4.0 | 5.0 | 4.6 | 6.7 |
| Giru | 1.0 | 3.5 (B) | 1.8 | - | 2.1 | 2.5 | 2.5 |
The above details are correct at the time of preparing this document. Up-to-date flood classifications and other details for all flood warning stations in the network are at:
http://www.bom.gov.au/hydro/flood/qld/networks/index.shtmlFor further information, contact:
The Regional Director, Bureau of Meteorology,
GPO Box 413, Brisbane Q 4001
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