Campers have had to be rescued, hundreds of others have called for help and a woman has died when a tree branch fell on a car as wild weather batters the NSW coast.
The woman was killed while driving on the Illawarra Highway at Macquarie Pass when the branch fell about 4pm today. A male passenger was also injured.
One of three rescued campers had hypothermia when police and the SES rescued them from Geehi in Kosciuszko National Park in the Snowy Mountains last night.
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Across the state, SES volunteers have responded to hundreds of weather-related jobs, particularly in the South Coast, Illawarra, Sydney and Hunter regions over the last 48 hours.
Volunteers helped several people trapped in their cars as flash flooding hit Albion Park, Picton and Marulan in the Southern Highlands in the past 24 hours.
NSW SES Superintendent Matt Kirby reminded people to put safety first.
"This weather can produce heavy rainfall and strong winds, so we remind people not to drive through floodwaters and be wary of where you park your vehicles as tree branches can fall at any time," Kirby said.
"Download the Hazards Near Me app to stay up to date with any warnings that have been issued."
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Heavy rain has already drenched parts of the state over the last two days, in the worst storm of the summer.
In Moruya, almost 200 millimetres of rain fell in the 48 hours to 9am today.
It was warned that the slow-moving pressure system could bring up to 120 millimetres of rain in some parts of the NSW coast over 24 hours.
Heavy rain and damaging winds were likely to continue in Sydney, the Blue Mountains, the Illawarra and Shoalhaven.
Severe thunderstorms were also likely across the Central Coast and Mid North Coast regions.
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