Source: Bureau of Meteorology

For people in parts of Illawarra, South Coast and Southern Tablelands Forecast Districts.

Issued at 3:53 pm Tuesday, 9 September 2025.

Heavy rainfall forecast to develop from Wednesday afternoon.

Weather Situation: a complex low is forecast to move over southeastern NSW and then push offshore around Jervis Bay later on Wednesday, with heavy showers and rain developing in a southeasterly flow, particularly about the ranges and elevated parts of the warning area.

HEAVY RAINFALL which may lead to FLASH FLOODING is forecast from Wednesday evening for parts of the southern Illawarra as well as the northern South Coast and eastern Southern Tablelands, particularly about elevated parts. Six-hourly rainfall totals between 60 to 100 mm are possible with 24-hour totals up to 140 mm.

Rainfall is expected to contract to the coast during late Wednesday and ease by Thursday morning.

Locations which may be affected include Nowra, Batemans Bay, Ulladulla and Nerriga.

The State Emergency Service advises that people should:
* 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