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Update to Ouse warning – major flood may develop at 3B Weir – minor flooding in the Derwent

Australian Government Bureau of Meteorology

Major Flood Warning for the River Derwent

Issued at 9:04 am EDT on Friday 14 October 2022

Flood Warning Number: 6

RAPID RISES ARE OCCURRING ALONG RIVER OUSE AND MAJOR FLOODING MAY DEVELOP AT 3B WEIR

MINOR FLOODING LIKELY TO DEVELOP IN THE RIVER DERWENT FROM MIDDAY FRIDAY

Strong river level rises are occurring along the Ouse River below Liawenee. Major flooding may develop at 3B Weir on River Ouse from Friday afternoon. Minor flooding may develop along the River Derwent below Meadowbank Dam from midday Friday.

In the 24 hours to 9:00 am, widespread rainfall totals of 50-200 mm have been observed in northern parts of the Derwent catchment around elevated areas, with an isolated total up to 300 mm recorded around Great Lake. Further rainfall totals of 20-40 mm are forecast across the northern parts of the Derwent catchment during the remainder of Friday.

Strong and dangerous flows are likely to be be a hazard over coming days.

River Ouse:

Major flooding may occur along the River Ouse.

The River Ouse at Ashton is currently at 3.71 metres and rising, with moderate flooding. The River Ouse at Ashton is likely to remain above the moderate flood level (3.20 m) Friday afternoon.

The River Ouse at 3B Weir is currently at 2.18 metres and rising. The River Ouse at Ouse is likely to reach the moderate flood level (3.70 m) late Friday morning. The river level may exceed the major flood level (4.30 m) early Friday afternoon.

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 1.54 metres and steady. The River Derwent below Meadowbank Dam is likely to exceed the minor flood level (4.10 m) around midday Friday.

Flood Safety Advice:

SES flood warnings can be found at TasALERT www.alert.tas.gov.au

Flood and storm safety 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 1pm on Friday 14 October 2022.

Latest River Heights:

LocationHeight of River (m)TendencyDate/Time of Observation
River Derwent below Lake St Clair0.70Steady07:15 AM FRI 14/10/22
River Ouse at Ashton3.71Rising08:00 AM FRI 14/10/22
River Ouse at 3B Weir2.18Rising08:15 AM FRI 14/10/22
River Clyde at Bothwell0.96Rising07:00 AM FRI 14/10/22
River Derwent below Meadowbank Dam1.54Steady08:15 AM FRI 14/10/22
River Derwent at Macquarie Plains0.65Steady08:41 AM FRI 14/10/22
Tyenna River at Newbury0.76Steady07:00 AM FRI 14/10/22
Styx River at Bruces Bridge1.20Steady08:04 AM FRI 14/10/22
River Derwent at New Norfolk0.63Rising08:37 AM FRI 14/10/22

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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