Source: Bureau of Meteorology

For people in parts of Lower Western Forecast District.

Issued at 11:24 am Wednesday, 24 November 2021.

Heavy rainfall expected to develop overnight and Thursday.

Weather Situation: A deepening low pressure system over eastern South Australia will extend a near stationary trough into western New South Wales. A tropical airmass with abundant moisture will be in place across the area.

HEAVY RAINFALL which may lead to flash flooding is forecast to develop overnight and Thursday for western parts of the Lower Western district. Six-hourly rainfall totals between 40 to 60 mm are possible.

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.