Residents in southeast Queensland are mopping up after more storms battered the region on Sunday evening, capping off a weekend of wild weather.
Meanwhile, the state's weather boss will examine why forecasters failed to issue a specific warning about a ferocious storm that hit the city on Saturday.
Clear blue skies over Brisbane this morning offered no clue to the torrid weekend of weather, which saw two house fires sparked by lightning strikes and a 46-year-old man struck by lightning in Jimboomba about 6.30pm on Sunday.
The man was using a high-pressure hose at his home when he was struck. He was rushed to Logan Hospital, where he is in a stable condition.
Hail stones larger than golf-balls pummeled western suburbs, including Middle Park, Riverhills, Kenmore and Moggill.
Trees were torn out of the ground and tossed across cars and into roofs by winds that gusted above 100 km/h. There was also isolated flash flooding in parts of Brisbane.
Brisbane Lord Mayor Graham Quirk said council crews would be out in force today, repairing infrastructure and assessing the damage.
"All of these things come with a price tag and of course the price tag won't be known until the clean up is complete," he told 612 ABC Brisbane this morning.
The Bureau of Meteorology said the worst of the weather had passed and while more storm activity was possible, it was unlikely.
As residents cleaned up after Saturday's storms that caused widespread damage, thick storm clouds rolled in again Sundayday afternoon.
The storm front hit the Brisbane CBD shortly before 6pm, and by 6.45pm there were more than 18,000 homes and businesses without power.
Nearly 25,000 lightning strikes were recorded by Energex during Sunday evening.
Two homes caught fire after being hit by lightning, but the heavy rain extinguished the flames.
Hail 9cm in diameter hit areas from Boonah to Mt Coot-tha and Bardon, while hail stones as large as tennis balls pelted Toowong.
The heavy rain forced motorists to stop on the Gateway Motorway, Deagon.
And public transport services were interrupted across the city as a result of debris and fallen objects, with major delays to the Ipswich and Cleveland lines.
The State Emergency Service reported receiving a call every 30 seconds in the first 10 minutes immediately after Sunday night's storm.
Between 5am on Sunday and 5am today, the SES received 102 calls for help from Brisbane residents.
The SES received 37 calls from the Gold Coast and Ipswich areas and 32 calls from the Sunshine Coast and surrounds.
More than 10,000 people were evacuated from the Harvest music festival at Brisbane's Botanic Gardens, but were later ushered back in as the danger cleared.
Meanwhile, Bureau of Meteorology regional director Rob Webb defended the actions of forecasters, but conceded he would have liked to see a warning about Saturday’s storms issued a ‘‘little earlier’’.
The massive storm was clearly visible on a BoM radar image taken at 10.12am Saturday. The radar showed the intense storm centred between Amberley and the Ipswich CBD, moving east towards Brisbane.
However the bureau did not issue an alert about the severe weather until 10.50am, after the storm front mashed into Brisbane city.
Forecasters at the Bureau of Meteorology were ‘‘sweating on every radar scan’’ on Saturday morning, but the bureau’s chief said he would review the decisions of forecasters in the lead up to the destructive storm.
‘‘On Saturday morning forecasters were monitoring those storms ... and given that it was early in the day the forecasters felt the storms would pass through without the reaching the high end of severe weather,’’ Mr Webb told 612 ABC Brisbane this morning.
‘‘Once we forecast the storms people should be aware that they can change their structure very quickly. You really need to be keeping an eye on the environment, as well as our website for warnings.
‘‘Our forecasters were watching those storms really closely - every six minutes as they came through. They made that judgment call on the storm behaviour as it moved across.’’
Mr Webb said the bureau had warned southeast Queensland residents throughout the week of weekend storms.
‘‘Without having seen the absolute details of all their decisions on the day, they really watched until they felt, ‘this storm is got too big, we’ve got to get a warning out’,’’ he said.
‘‘This was in the backdrop of having the community being prepared anyway - that would be another thing going through the forecasters mind.
‘‘We’re reaching the peak of the storm season now and we will see more severe weather and you just need to be aware that that happens in Brisbane.’’
Ipswich City Councillor Paul Tully has called for a public apology from the bureau for its "monumental failure" to issue a timely storm warning.
"They must have been enjoying a long morning tea or an early lunch not to realise the intensity of the approaching storm," he said.
Other critics took to Facebook.
"Methinks the Australian Bureau of Meteorology (Queensland Weather Warning Feed) must have had their Chrissy drinks last night. They are blaming the speed of this morning's storm for their not being able to issue a warning until 5 minutes after it hit (rattling their building in the process)," wrote Lipscome Mick, linking to the feed.
"You are hopeless !!! More chance of making your own decisions by looking at the sky !!! Your warnings are late and worthless ...," wrote Dallas Garton.
"Freaking hopeless ... who has been sleeping on the job then ??" wrote M'lady Stompalot.
Michelle Truesdale reflected on the lack or outreach to social media users — despite most other emergency organisations regularly updating followers of their Facebook pages and Twitter feeds:
"Your last post was 28 October. No warnings of super storm cells expected in SE Qld & Nthn NSW today & tomorrow. (And one huge storm has already hit Brisbane this morning.). Think I might 'unlike' this page."
Over the weekend, Brisbane city received about 80 millimetres of rain, while Gatton received the heaviest downpour in four years with 96 millimetres falling in the town on Saturday.
On the Sunshine Coast, 11 millimetres of rain fell in Maroochydore in only 10 minutes about 3.40pm yesterday.
Brisbane is expected to reach a top of 31 degrees today, although the mercury is tipped to climb to 34 degrees in Ipswich.
Temperatures will drop quickly during the late afternoon, however, as a brisk southerly change arrives.
- with Katherine Feeney