Wednesday, August 21, 2019

River Derwent initial minor flood warning

Bureau of Meteorology, Tasmania


Initial Minor Flood Warning for the River Derwent

Issued at 10:44am on Wednesday 21 August 2019

Flood Warning Number: 1
Minor flooding may develop along the lower Derwent River below Meadowbank Dam during Wednesday. Flooding is not expected to extend downstream to Macquarie Plains and New Norfolk.
In the 24 hours to 9 am Wednesday, widespread rainfall totals between 10-40 mm were observed in the Derwent River catchment, with isolated higher totals up to 67 mm at Narcissus River.
Widespread rainfall totals of 10-20 mm are forecast for the remainder of Wednesday and 5-15 mm for Thursday. No significant rainfall is forecast for Friday.
River levels are high in the upper Derwent, Nive, Florentine, Tyenna, Styx and Plenty Rivers.
Strong and dangerous flows will be a hazard over the next couple of days.


River Derwent above River Ouse:

Strong river rises are occurring in the upper River Derwent and its tributaries.

River Derwent above Meadowbank Dam:

Strong river rises are occurring in the middle reaches of the River Derwent.

Tyenna River:

Strong river rises are occurring in the Tyenna River.

Styx River:

Minor flooding has eased along the Styx River about Bruces Bridge.

River Derwent below Meadowbank Dam:

Minor flooding may occur along the River Derwent below Meadowbank Dam.
The River Derwent below Meadowbank Dam is currently at 3.77 metres and steady. The River Derwent below Meadowbank Dam may reach the minor flood level (4.10 m) during Wednesday.
The River Derwent at Macquarie Plains is currently at 2.17 metres and rising. The River Derwent at Macquarie Plains is expected to remain below the minor flood level (4.00 m) during Wednesday.


Flood Safety Advice:

FloodSafe advice is available at www.ses.tas.gov.au
Road closure information is available at www.police.tas.gov.au
For emergency assistance call the SES on telephone number 132 500
For life threatening situations, call 000 immediately.

Next Issue:

The next warning will be issued by 11:30am on Thursday 22 August 2019.


Latest River Heights:

LocationHeight of River (m)TendencyDate/Time of Observation
River Derwent below Lake St Clair2.19Steady10:00 AM WED 21/08/19
River Ouse at Ashton0.93Rising10:00 AM WED 21/08/19
River Ouse at 3B Weir0.79Steady10:00 AM WED 21/08/19
River Clyde at Bothwell0.07Steady10:00 AM WED 21/08/19
River Derwent below Meadowbank Dam3.77Steady10:15 AM WED 21/08/19
River Derwent at Macquarie Plains2.18Rising10:25 AM WED 21/08/19
Tyenna River at Newbury1.51Falling10:15 AM WED 21/08/19
Styx River at Bruces Bridge1.50Falling10:29 AM WED 21/08/19
River Derwent at New Norfolk1.03Falling10:22 AM WED 21/08/19

This advice is also available by dialling 1300 659 210. Warning, rainfall and river information are available at www.bom.gov.au/tas/flood. The latest weather forecast is available at www.bom.gov.au/tas/forecasts.

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