Source: Bureau of Meteorology

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

Issued at 10:22 am Wednesday, 5 May 2021.

HEAVY RAIN OVER THE SOUTH COAST AND ILLAWARRA CONTINUING THROUGH WEDNESDAY AND THURSDAY

A trough lies along the NSW coast, with a low pressure system forecast to develop along the trough off the north coast during the course of Wednesday. An approaching cold front about the south coast will then bring a second period of possibly enhanced rainfall on Thursday.

HEAVY RAINFALL which may lead to FLASH FLOODING is expected to continue during Wednesday over the South Coast, Illawarra and adjacent ranges.

There will likely be a period of less intense rain during Wednesday evening, before increasing again during Thursday. Rainfall rates are expected to ease significantly by Thursday evening.

Throughout Wednesday and Thursday thunderstorms are expected and may produce locally heavy rainfall.

Locations which may be affected include Wollongong, Nowra, Bowral, Batemans Bay, Bega and Moruya Heads.

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 following bushfires.
* For emergency help in floods and storms, ring your local SES Unit on 132 500.