A severe thunderstorm warning has been issued for the ACT, and the Bureau of Meteorology is predicting damaging winds, large hailstones and heavy rain.
Thunderstorms are developing north-west of the ACT and are heading in a south-easterly direction.
The Emergency Services Agency says these storms are moving quickly and are likely to impact areas including Weston Creek and West Belconnen in the next 30 minutes.
The ACT State Emergency Service advises people to move cars under cover or away from trees.
Secure or put away loose items around your house, yard and balcony. Keep clear of creeks and storm drains. Stay indoors away from windows, and keep children and pets indoors as well.
Keep at least eight metres away from fallen power lines or objects that may be energised, such as fences.
For assistance call the ACTSES on 132 500, in a life-threatening emergency call Triple Zero (000).