Source: Bureau of Meteorology

For people in South Coast and parts of Illawarra and Snowy Mountains Forecast Districts.

Issued at 10:59 am Tuesday, 28 November 2023.
Heavy rainfall and possible damaging winds for the southeast from Wednesday morning.

Weather Situation: A broad low pressure system over southern inland New South Wales is moving slowly towards the southeast, developing in response to a strong upper trough to the west. By Wednesday morning, a second low pressure centre is expected to develop just offshore of the South Coast. Rich moisture drawn to the south of this low will lead to persistent rain areas over southeastern New South Wales with some embedded heavier showers and thunderstorms. Strong winds may also develop just to the south of the low.

HEAVY RAINFALL which may lead to FLASH FLOODING is forecast for the South Coast and parts of the Snowy Mountains and southern Illawarra from early Wednesday morning. Six-hourly rainfall totals of 50 to 100 mm are possible, with isolated falls of up to 150 mm.

DAMAGING WINDS averaging 60 to 70 km/h with peak gusts of around 90 km/h are possible along the coastal fringe south of Moruya Heads from late Wednesday morning, though there is more uncertainty with this risk due to the movement and position of the low.

The broad severe weather risk should begin to contract to the south during Wednesday afternoon, though heavy showers and thunderstorms are possible later in the day.

Locations which may be affected include Batemans Bay, Eden, Bega, Moruya Heads, Narooma and Merimbula.

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.