Sunday, October 9, 2016

Initial minor flood warning for Derwent system

Bureau of Meteorology, 
Tasmania


Initial Minor Flood Warning for the River Derwent

Issued at 3:42 pm on Sunday 9 October 2016

Flood Warning Number: 1
Minor flooding is likely to develop in the middle and lower reaches of the River Derwent during Monday. Minor flooding is not expected to extend downstream to New Norfolk.
Lake King William continues to spill resulting in elevated river levels downstream.
Rainfall totals of 20 to 40mm are forecast for the remainder of Sunday, with another 20 to 40mm likely on Monday about the upper part of the catchment. Higher totals are possible about elevated areas.
Strong flows will remain a hazard throughout the Derwent catchment for the next few days.

River Derwent above River Ouse:

River rises are expected in the upper River Derwent overnight Sunday into Monday. Lake King William continues to spill resulting in elevated river levels downstream.


River Ouse:

River levels are expected to remain below minor flood levels in the River Ouse overnight Sunday into Monday.
The River Ouse at Ashton is currently at 1.08 metres and steady.


River Clyde:

River levels are expected to remain below minor flood levels in the River Clyde overnight Sunday into Monday.
The River Clyde at Bothwell is currently at 1.18 metres and steady.


River Derwent above Meadowbank Dam:

River rises are expected in the upper River Derwent overnight Sunday into Monday.


Tyenna River:

River rises are expected in the Tyenna River overnight Sunday into Monday.


Styx River:

River rises are expected in the Styx River overnight Sunday into Monday.


River Derwent below Meadowbank Dam:

Minor flooding is likely along the River Derwent below Meadowbank Dam.
The River Derwent below Meadowbank Dam is currently at 3.51 metres and rising. The River Derwent below Meadowbank Dam is likely to exceed the minor flood level (4.10 m) Monday morning. The river level may peak between 4.60 and 4.90 metres Monday evening.
The River Derwent at Macquarie Plains is currently at 2.40 metres and falling. The River Derwent at Macquarie Plains may reach the minor flood level (4.00 m) overnight Monday into Tuesday.

River Derwent around New Norfolk:

Minor flooding is not expected to extend downstream to New Norfolk.
The River Derwent at New Norfolk is currently at 1.08 metres and rising. The River Derwent at New Norfolk is expected to remain below the minor flood level (2.00 m) during Monday.


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 Monday 10 October 2016.


Latest River Heights:

LocationHeight of River (m)TendencyDate/Time of Observation
River Derwent below Lake St Clair1.76Steady02:00 PM SUN 09/10/16
River Ouse at Ashton1.08Steady02:30 PM SUN 09/10/16
River Ouse at 3B Weir0.90Steady03:00 PM SUN 09/10/16
River Clyde at Bothwell1.18Steady03:00 PM SUN 09/10/16
River Derwent below Meadowbank Dam3.51Rising03:00 PM SUN 09/10/16
River Derwent at Macquarie Plains2.40Falling03:23 PM SUN 09/10/16
Tyenna River at Newbury0.72Steady03:00 PM SUN 09/10/16
River Derwent at New Norfolk1.08Rising03:09 PM SUN 09/10/16

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.

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