A trough will move slowly through southeast NSW this evening and Friday morning, localised heavy rain and thunderstorms are anticipated with this system, particularly about the ranges and including the ACT. A small scale, relatively weak low pressure system is likely to form off the southern NSW coast tomorrow and may bring some localised heavy rain for the South Coast.

Localised heavy rain and thunderstorms may lead to flash flooding in parts of the Australian Capital Territory, Snowy Mountains, Southern Tablelands and South Coast forecast districts this evening and Friday morning.

A Severe Thunderstorm Warning has been issued for the Upper Western, Central West Slopes and Plains and Central Tablelands districts, further Severe Thunderstorm warnings are likely to be issued for other parts of NSW this evening and tomorrow.

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.

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