Source: Bureau of Meteorology

For people in parts of Snowy Mountains, Australian Capital Territory and South West Slopes Forecast Districts.

Issued at 6:22 pm Friday, 20 March 2026.

Isolated severe storms near the Snowy Mountains and ACT.

Weather Situation: a surface trough and approaching upper trough are combining to produce heavy slow-moving showers and thunderstorms this evening over parts of the southeast. Storms are expected to ease later this evening.

Severe thunderstorms are likely to produce heavy rainfall that may lead to flash flooding and large hailstones in the warning area over the next several hours. Locations which may be affected include Cooma, Jindabyne, Adaminaby and Bredbo.

Severe thunderstorms are no longer occurring in the Southern Tablelands district and the warning for this district is CANCELLED.

The State Emergency Service advises that people should:
* Park your car under secure cover and away from trees, powerlines and drains.
* Secure or put away loose items around your house, yard and balcony.
* Keep clear of creeks and storm drains.
* Don't walk, ride your bike or drive through flood water.
* If you are trapped by flash flooding, seek refuge in the highest available place and ring 000 if you need rescue.
* Stay indoors away from windows, and keep children and pets indoors as well.
For emergency help in flood and storms, ring the SES on 132 500.
Stay updated on the Hazards Near Me NSW app or the ACT ESA website (https://esa.act.gov.au).