Source: Bureau of Meteorology
For people in Metropolitan, Illawarra and parts of Mid North Coast, Hunter, South Coast and Central Tablelands Forecast Districts.
Issued at 5:15 pm Sunday, 9 August 2020.
HEAVY RAIN IN THE ILLAWARRA. COASTAL WINDS AND SURF TO INCREASE SOUTH COAST TO MID NORTH COAST.
A trough along the New South Wales coast is deepening with multiple low centres developing within the trough. This system is currently bringing widespread rain to the Illawarra Sydney coast and adjacent ranges, and is set to bring increased winds and surf along the coast from late this afternoon as one of the low centres make landfall.
HEAVY RAINFALL, which is leading to RIVERINE FLOODING, may continue for the Illawarra this evening. The areas of heavy falls may extend to the Sydney Metropolitan, the Blue Mountains and the Hunter Coast late this afternoon or tonight depending on the position and the movement of the lows. Thunderstorms embedded in the rain or any development of a small scale low within the trough may exacerbate the rain rate leading to FLASH FLOODING. The rain should ease around late this evening as the trough starts to move northwards late tonight or early Monday.
Moderate to Major Flood Warnings are current for some of the South Coast river catchments. See http://www.bom.gov.au/nsw/warnings/index.shtml for more information.
DAMAGING WINDS, averaging 60 to 70 km/h with gusts in excess of 90 km/h, are likely to develop on the coastal fringe of the Illawarra, the north of the South Coast, the Sydney Metropolitan and the Hunter from late this afternoon. They may ease somewhat overnight before strengthening again Monday morning on the Sydney and Hunter coastal fringe, then extending to the Mid North Coast in the afternoon.
DAMAGING SURF CONDITIONS, with waves exceeding 5 metres in the surf zone, may lead to significant beach erosion along coastal parts of the South Coast, Illawarra, Sydney Metropolitan and Central Coast regions from late this afternoon,extending north to about Smoky Cape on Monday. Beach conditions in these areas could be dangerous and people should stay well away from the surf and surf exposed areas. Surf conditions should ease in the south later Monday, and hazardous surf conditions should persist along the northern coast Tuesday.
A Hazardous Surf Warning is current. See http://www.bom.gov.au/nsw/warnings/hazardoussurf.shtml
Locations which may be affected on SUNDAY include Sydney, Wollongong, Nowra, Batemans Bay, Braidwood, and Moruya. Locations which may be affected on Monday includes Sydney, Wollongong, Newcastle, and Port Macquarie.
Severe weather is no longer occurring in the Southern Tablelands district and the warning for this district is CANCELLED.
Rainfall totals for the 6 hours to 3 pm Sunday:
Brogers 40mm, Broughton Creek 38 mm, Wattamolla 36 m, Sassafras 33 mm, Yalwal 33 mm.
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.
Source: Bureau of Meteorology