Storms on Thursday rolled into southeast Queensland for the fourth straight day with inner-Brisbane among the first hit.
Hail up to four centimetres peppered the city as the skies opened with more expected to come as severe storms "bubble along" the east coast late on Thursday.
Wild weather is set to impact the state from the Sunshine Coast in the southeast to the Cape York Peninsula in the north.
"The storms are packing a punch," Bureau of Meteorology's Angus Hines told AAP.
"There's a fairly extensive risk for today and there is still a number of communities including pretty populated ones on the east coast which could be hit by some pretty severe thunderstorms."
The bureau had earlier warned of "giant hail, big enough to cause damage to properties, vehicles and crops" for southeast Queensland.
"You do not want to be outside in that, so please move your cars under cover and stay inside when a storm approaches," the bureau said.
"Damaging to destructive winds at and above 100 kilometres an hour are easily enough to bring down trees and power lines and cause property damage to homes, properties and businesses."
More than 10,000 people were without power on Thursday afternoon after days of "catastrophic" superstorms in the southeast.
Cyclonic winds toppled trees, removed roofs and brought down powerlines, shutting roads and forcing schools to close with repairs still under way.
At one stage more than 160,000 properties were left without power.
There is some relief in sight with a "lull" in storm action forecast for Friday.
"But it is a brief reprieve. We are seeing signs of stormy weather returning by Saturday," Mr Hines said.
"There will be one day where people can let their guard down but be prepared for more storms come the weekend."
Northern NSW is set for some more storm action late on Thursday with Byron Bay and Tweed Heads to be impacted.
But the weather in NSW had largely "settled" after severe thunderstorms caused widespread damage across the state on Wednesday.
Destructive winds, which reached 120 km/h in some parts, brought down trees, powerlines and tore roofs off homes.
Emergency crews responded to 1100 incidents in the 24 hours to 2pm local time, and more than 45,000 homes are still without power.
At Nevertire west of Dubbo, entire roofs were blown off properties, including private homes and sheds.
A 76-year-old man died on Wednesday after being struck by a tree at Glenworth Valley on the NSW Central Coast.
NSW SES Assistant Commissioner Sean Kearns said residents in storm warning areas should remain vigilant.
"We know this time of year brings storms that are fast-moving but intense, and we want people to be prepared," he said.
"It is important to know your storm and flooding risk, have a plan in place, get your home ready, and be aware of what you will do if disaster strikes."
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