BOM forecast possible severe thunderstorms in ACT, as Monday's storm clean-up continues; Canberrans without power until Sunday

There is a very high chance of showers on both Thursday and Friday, with the possibility of a severe thunderstorm in the afternoon and evening, the bureau says. There is also the chance of thunderstorms on Saturday and Sunday.

The ESA said it received 834 requests for help as of 3pm, following the severe thunderstorm on January 3. They said most callouts were about fallen trees causing damage to houses and leaking roofs.

ACT ESA and government services crews have completed 557 of these requests, with 277 jobs still outstanding.

"Our amazing volunteers and staff are working tirelessly to complete all priority requests before further weather events impact the ACT," the ESA said.

EvoEnergy said power was unlikely to be restored to Canberrans remaining without until Sunday. This will affect about 2300 customers, with about 70 customers in Macgregor and Page expected to have power restored on Wednesday afternoon.

The blackouts come after the severe storm damaged power lines and infrastructure as hail and strong winds brought down trees across the region.

EvoEnergy said it was rotating all available staff on shifts to manage the response and restore power as quickly and safely as possible.

At the height of the storm around 21,000 homes and businesses were without power across Belconnen and Gungahlin.

EvoEnergy acting general manager Alison Davis said the damage to the electricity network was the most severe observed in the ACT for many years.

"At EvoEnergy we've seen serious and extreme conditions, but the weather on Monday afternoon has resulted in some of the worst damage to our network on record," Ms Davis said.

"Our crews are highly trained and are continuing to work as safely and quickly as possible, but working to repair the type of damage we've assessed over the past two days is complex, time-consuming and incredibly challenging.

"Our crews are working meticulously and methodically to ensure the health, safety and wellbeing of all workers and the broader community, as efforts continue around the clock."

Ms Davis said it was working closely with the ACT ESA to prioritise the assessments of damage and conduct repairs.

"Right now, I want to assure Canberrans that we'll keep going until we get the job done," she said.

"With further storms forecast this week we are carefully planning our resourcing over the coming days to ensure we have crews available in the event of more extreme weather."

With fallen trees and debris strewn across the ACT, the clean up effort continues.

Holt resident Pepi Millucci pitched in with neighbours to help clear their street.

"[My neighbours and I] don't get together and have barbecues, but when those storms happen, or even with the fires and things like that, everyone sort of pulls together and helps each other out," he said.

However, the Bureau of Meteorology has predicted possible severe storms later in the week.

BoM forecaster Morgan Pumpa said the next few days would be humid with Canberra expected to see a return of wet weather from Thursday.

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She said Thursday and Friday would be the "days of strong interest" with a "deepening inland trough bringing unsettled weather".

"This storm that we're going to see over tomorrow and into the weekend, may become severe. Thursday and Friday are the days that people should really pay attention," the forecaster said.

"An inland trough is moving across the state from the west to the east. So it's over the Riverina today, so people can get an idea of what they might be in for tomorrow and into Friday. It has been hanging over there quite stationary, but it's starting to move, because we've got a cold front, just below Tasmania, which is pushing it just a little bit now. That's why we've seen a bit more wet weather."

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