Flooding which is predicted to peak in Forbes today will fall short of the town's highest flood.
Andrew Gissing, an emergency management expert with the Bushfire and Natural Hazards CRC and General Manager of Resilience at Risk Frontiers says the town's highest recorded flood occurred in June 1952 when the Lachlan peaked at 10.8 metres.
"Forbes has a long history of flooding, which has commonly occurred during Spring," Mr Gissing said.
"The highest flood recorded occurred in June 1952 peaking at 10.8 metres.
"Current predictions are for the river height at Forbes to peak near 10.65 metres."
Of concern is the forecast for the next week with the Bureau of Meteorology forecasting rain this weekend and mid next week.
The Bureau is currently forecasting a 90 per cent chance of up to 30mm of rain for the town on Sunday and similar falls upstream.
Mr Gissing says the current flow in the Lachlan River has the potential of isolating small rural communities downstream of Forbes for several weeks.
With the flood water continuing to rise Mr Gissing has issued a warning for people to prepare for more rain and is concerned about the possibility of motorists driving through flood waters.
"The greatest concern is people driving through floodwater," he said.
"In an observational study 84 per cent of motorists chose to ignore road closure signs and drove through floodwater.
"Between 1960 and 2015, 49 per cent of Australia's 546 flood fatalities resulted from people driving into floodwater totalling some 229 vehicle-related fatalities.
"There is a strong likelihood that further storms and floods will impact communities over the coming months and now is the time to make sure homes and businesses are prepared," he said.
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