Rising floodwaters in the NSW towns of Forbes and Condobolin are expected to peak tonight, with evacuation orders in place for residents.
Forbes locals are being advised to evacuate as the Lachlan River swells to an estimated peak of 10.7m by midnight tonight following 17mm of rain overnight.
"The situation at Forbes is continuing; the river is still rising, albeit slowly," SES spokeswoman Sue Pritchard said.
About 1000 people in Forbes were ordered to evacuate yesterday while residents at Condobolin remain on stand-by pending possible further flooding.
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The SES has received 2300 calls for assistance since August 30, including 95 flood rescues.
Forbes police station has been on a 24-hour operating schedule to patrol evacuated areas.
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While flooding in Forbes has surpassed the 1990 floods, in which the Lachlan River reached 10.65m, the worst is now being predicted to hit next week.
The town could be cut in two, Forbes Shire Council spokesman John Zannes said.
"The water's coming up at Lake Forbes, which cuts the town in two or three," he said yesterday.
The bureau predicts a second, higher peak next week near Condoblin and Euabalong.
A major flood warning has also been issued for the Bogan River at Dandaloo, with the river set to rise downstream near Nyngan.
The flooding in the larger Dandaloo is easing, a spokesman for the Bureau of Meteorology told 9news.com.au, but the river continues to rise quickly downstream at Mulgawarrina, near Nyngan.
Cottons Weir and Jemalong are also subject to a major flood warning, affecting low-lying roads and bridges in the area.
The Lachlan River at Jemalong is predicted to hit 8.3 metres on Tuesday which will cause major flooding.
Evacuation orders were also issued yesterday for Wagga Wagga Beach Caravan Park and parts of Ungarie.
Several flood warnings have been issued by the Bureau of Meteorology today for rivers in the state's central-west.
The SES advises that people should:
Never drive, ride or walk through floodwater
Stack possessions, records, stock or equipment on benches and tables, placing electrical items on top
Secure objects that are likely to float and cause damage
Relocate waste containers, chemicals and poisons well above floor level
Activate your Home or Business FloodSafe Plan
Keep listening to your local radio station for information, updates and advice
Keep in contact with your neighbours
Be prepared to evacuate if advised by emergency services
Act early as roads may become congested or close
For a full list of flood warnings, visit the BoM website.