Derwent River: initial flood warning

Bureau of Meteorology, Tasmania

Initial Minor Flood Warning for the River Derwent

Issued at 3:56pm on Thursday 21 July 2016

Flood Warning Number: 1

Minor flooding may develop in the lower reaches of the River Derwent below Meadowbank Dam during Friday afternoon. Minor flooding may develop throughout the River Ouse in response to forecast heavy rainfall about the north of the State. River rises are likely in most other tributaries during Friday.

Widespread rainfall totals of 10 to 25 mm are expected in the Derwent catchment Thursday evening into Friday. Totals as high as 60 mm are possible about elevated areas. Further rainfall is expected throughout the remainder of the weekend.

Strong and dangerous flows may be a hazard throughout the Derwent catchment during the weekend.

River Derwent above River Ouse:

River rises may occur in the upper reaches of the River Derwent during Friday.

River Ouse:

Minor flooding may occur along the River Ouse.

The River Ouse at Ashton may exceed the minor flood level (2.40 m) Friday afternoon.

River Clyde:

River rises may occur in the Clyde River, with river levels expected to remain below minor flood levels.

River Derwent above Meadowbank Dam:

Minor flooding may develop in the middle reaches of the River Derwent during Friday evening.

Tyenna River:

River rises are possible in the Tyenna River during Friday.

Styx River:

River rises are possible in the Styx River during Friday.

River Derwent below Meadowbank Dam:

Minor flooding is expected along the River Derwent below Meadowbank Dam.

The River Derwent below Meadowbank Dam is expected to exceed the minor flood level (4.10 m) Friday afternoon.
The River Derwent at Macquarie Plains is likely to exceed the minor flood level (4.00 m) Friday evening.

River Derwent around New Norfolk:

Minor flooding may occur along the River Derwent around New Norfolk.

The River Derwent at New Norfolk may exceed the minor flood level (2.00 m) Saturday morning.

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 9am on Friday 22 July 2016.

Latest River Heights:

Location	Height of River (m)	Tendency	Date/Time of Observation
River Derwent below Lake St Clair	1.80	Steady	03:00 PM THU 21/07/16
River Ouse at Ashton	1.04	Steady	02:15 PM THU 21/07/16
River Ouse at 3B Weir	0.89	Steady	03:00 PM THU 21/07/16
River Clyde at Bothwell	0.49	Steady	02:00 PM THU 21/07/16
River Derwent below Meadowbank Dam	3.03	Falling	03:00 PM THU 21/07/16
River Derwent at Macquarie Plains	1.70	Steady	02:37 PM THU 21/07/16
Tyenna River at Newbury	0.73	Steady	02:00 PM THU 21/07/16
Styx River at Bruces Bridge	1.10	Falling	08:09 AM THU 21/07/16
River Derwent at New Norfolk	0.70	Steady	03:04 PM THU 21/07/16

This advice is also available by dialling 1300 659 216. 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.