Residents on the NSW South Coast are being warned to prepare for flash flooding and heavy winds as wild weather heads for the state.
The Bureau of Meteorology issued a Severe Weather Warning on Friday to residents on the NSW South Coast and parts of Southern Tablelands, South West Slopes and Snowy Mountains Forecast Districts.
BOM meteorologist Dean Narromore said a cut-off low moved from South Australia to NSW and the southwest part Queensland.
While southwest Queensland is currently being hit by heavy rainfall, the low should move to the NSW South Coast on Saturday morning.
“Rain and storms will slowly clear off the Queensland coast on Saturday, though they will continue about the tropical north,” Mr Narromore said.
“In NSW, rain will ease over the inland and focus along the southern coast and ranges on Saturday and Sunday the rain will be heavy at times. This rain will be falling on areas that are already wet from the last round of rain.”
Bega is forecast to receive 90-150mm on Saturday followed by 70-120mm on Sunday with possible thunderstorms.
Nearby Merimbula could receive between 70-120mm on Saturday and 50-90mm on Sunday while Bombala might get 70-120mm Saturday and 60-100mm Sunday.
Ulladulla, which only recently had its heaviest July rainfall in 66 years, will receive somewhat of a reprieve from the deluge but still have impressive totals of 30-50mm on Saturday and 20-35mm Sunday.
Areas hit by the low will also experience a 6-10 degree drop below the August average maximum temperature.
Bega and Merimbula will hit tops of 15C and lows of about 8-9 both days. Bombala will only get as warm as 10 on Saturday and 9 on Sunday. Both days will be lows of 5.
Next few days will see a noticeable change in conditions across parts of #NSW & #ACT. Different areas could see #rain #wind, cold #temperatures & #thunderstorms between now & Sunday, but impacts will vary significantly between locations https://t.co/aFqbaGhM0q@NSWSES @nswpolice pic.twitter.com/tpZTuJwvYT— Bureau of Meteorology, New South Wales (@BOM_NSW) August 6, 2020
Mr Narromore said river level rises are possible “over the weekend and into next week”.
People are being urged to be aware of possible flooding at St Georges Basin and the Shoalhaven and Queanbeyan Rivers. Flooding is also possible in Upper Murray and Snowy Rivers.
NSW SES issued warnings on Friday and offered sandbag collection from St Georges Basin and Nowra.
“NSW SES advises people planning to travel south this weekend, during bad weather to avoid camping on low-lying land near creeks, rivers, steam and other waterways,” the SES said.
There are also damaging winds averaging 60-70km/h on the western side of the Alps which could continue on Saturday.
They might also affect the coastal fringe of the NSW South Coast district from Saturday.
Sydney is also in for a wet weekend but should miss most of the brunt of the cut-off low with 2-3mm on Saturday and 6-10mm Sunday. Temperatures are expected to sit at a max of about 18-20 with lows of about 7-8 degrees.
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