Source: Bureau of Meteorology

For people in Mid North Coast, Metropolitan, Northern Tablelands and parts of Northern Rivers, Hunter, Illawarra, South Coast, Central Tablelands and North West Slopes and Plains Forecast Districts.

Issued at 5:05 am Tuesday, 1 July 2025.

VIGOROUS COASTAL LOW DEVELOPING OFFSHORE TO BRING DAMAGING,LOCALLY DESTRUCTIVE WINDS AND POSSIBLE HEAVY RAINFALL OVER CENTRAL, SOUTHERN AND NORTHERN NSW FROM TODAY.

Weather Situation: A rapidly deepening complex low pressure system is forecast to develop a vigorous Coastal Low offshore of the Mid North Coast early this morning, before it slowly tracks southwards and approach the central NSW coast later today before turning and moving offshore into the Tasman Sea on Wednesday. Winds are forecast to strengthen along the coastal fringe from this morning, extending to the northern ranges and their eastern lee slopes from Tuesday evening, with a moist southeasterly airstream likely to develop on the southern flank of the system, bringing possible heavy rainfall to the central and southern coastlines.

For coastal parts of the HUNTER and MID NORTH COAST, including NEWCASTLE: DAMAGING SOUTH TO SOUTHWESTERLY WINDS averaging 60 to 70 km/h with peak gusts of around 110 km/h are possible from early this morning, becoming likely from the afternoon onwards. Locally DESTRUCTIVE WIND GUSTS with peak gusts in excess of 125 km/h are also possible from midday today for exposed coastal areas between Newcastle and Forster. Isolated HEAVY RAINFALL which may lead to FLASH FLOODING is also possible for the coastal fringe south of Seal Rocks this morning. Six-hourly rainfall totals between 70 to 90 mm are possible, with isolated totals up to 120 mm.

For the SOUTHERN and CENTRAL COASTAL FRINGE, including SYDNEY, WOLLONGONG and the CENTRAL COAST: DAMAGING SOUTH TO SOUTHWESTERLY WINDS averaging 60 to 70 km/h with peak gusts of around 110 km/h are likely to develop from Tuesday afternoon, extending to Ulladulla by the evening.Locally DESTRUCTIVE WIND GUSTS with peak gusts in excess of 125 km/h are also possible this afternoon for exposed Sydney metro and northern Illawarra coastal areas between about Bondi and Wollongong. Isolated HEAVY RAINFALL which may lead to FLASH FLOODING is also possible for the coastal fringe north of Ulladulla from this morning. Six-hourly rainfall totals between 70 to 90 mm are possible, with isolated totals up to 120 mm.

For the NORTHERN GREAT DIVIDING RANGE: Strong to DAMAGING WEST TO SOUTHWESTERLY WINDS averaging 55 to 65 km/h with peak gusts of around 90 km/h are likely to develop during Tuesday evening and about the Scenic Rim close to Queensland border from early Wednesday morning.

Subject to the position and strength of the Coastal Low, DAMAGING WINDS and possible HEAVY RAINFALL are likely to persist into Wednesday for parts of NSW.

A separate Coastal Hazard Warning is also current for parts of the NSW coast. Refer to: http://www.bom.gov.au/nsw/warnings/

Locations which may be affected include Taree, Newcastle, Gosford, Sydney, Wollongong, Armidale, Nowra and Batemans Bay.

The State Emergency Service advises that people should:
* Move vehicles under cover or away from trees.
* Secure or put away loose items around your house, yard and balcony.
* Keep at least 8 metres away from fallen power lines or objects that may be energised, such as fences.
* Trees that have been damaged by fire are likely to be more unstable and more likely to fall.
* Report fallen power lines to either Ausgrid (131 388), Endeavour Energy (131 003), Essential Energy (132 080) or Evoenergy (131 093) as shown on your power bill.
* Don't drive, ride or walk through flood water.
* Keep clear of creeks and storm drains.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Be aware that run-off from rainfall in fire affected areas may behave differently and be more rapid. It may also contain debris such as ash, soil, trees and rocks.
* After bushfires, heavy rain and the loss of foliage can make the ground soft and heavy, leading to a greater chance of landslides.
* Stay vigilant and monitor conditions. Note that the landscape may have changed following bushfires.
* For emergency help in floods and storms, ring your local SES Unit on 132 500.