South Australia has sent a team of swift water rescue experts to support the New South Wales State Emergency Service as it responds to severe storms and life-threatening flooding.
The 12 technicians, drawn from SA State Emergency Service and Metropolitan Fire Service personnel, left Adelaide on Tuesday and will support operations in NSW until Saturday.
SES Chief Officer Chris Beattie said with recent torrential rain in the north of the state, South Australia had experienced first-hand the devastating impact flooding can have on communities.
"South Australia has a long history of providing assistance to other states in times of need," he said.
"The rescue technicians will play an important role in supporting the NSW SES during this severe weather event.''
The unprecedented floods in northern NSW are worse than anticipated, with 34,000 people ordered to evacuate and another 310,000 warned to be ready to flee.
The Bureau of Meteorology warned NSW is in for more thunderstorms, heavy rain and damaging winds as extreme weather moves south along the coast.
A low-pressure system is heading towards Sydney on Tuesday night with heavy rain that could cause flash flooding and potentially hazardous conditions.
Australian Associated Press
