Severe thunderstorms menace Queensland

Severe thunderstorms have kept emergency services busy overnight and hampered the reconnection of power to flood-weary southeast Queenslanders.

Severe storms rolled across the Lockyer Valley last night, then moved east to Brisbane, bringing damaging winds and lightening to the region and hail to Oakey, the Bureau of Meteorology said.

"The highest rainfall was up on the Sunshine Coast Hinterland at Pomona where 114mm fell in the 24 hours to 9am. Next highest was Eumundi with 108mm and the highest closer to Brisbane was Cedar Creek Road, that was 94mm," senior forecaster Brett Harrison told AAP.

It caused headaches for locals who just want to clean up, or get on with life after the floods.

ENERGEX said 30,000 properties lost power and crews had to be redirected from flood restoration duties.

Power supplies were cut by high winds and more than 6,500 lighting strikes hit in areas stretching from the Lockyer and Brisbane Valleys to Ipswich, Gold Coast and Brisbane.

Many of the areas affected had only recently had power restored after last week's floods.

There are still 3300 still without power from the floods mainly in the Graceville, Algester and Marburg areas, now a further 400 have been added to the tally from the storm, ENERGEX told AAP.

Emergency services said in the 24 hours to 5am, they received 134 calls for help in Brisbane and 39 in Ipswich.

"Most were for storm damage, including damage to the house, fallen trees, mostly superficial damage," a department of Community Safety told AAP.

Meanwhile, it could be round three this afternoon and evening, with more thunderstorms expected.

"We are expecting storms again today in the southeast but more likely to the west of Brisbane", BoM senior forecaster Brett Harrison told AAP.

"There's still a chance of seeing some flash flooding, damaging winds and flash flooding."

Residents in low-lying parts of Brisbane have been warned to prepare for a king tide on Friday that could cause more flooding.

Lord Mayor Campbell Newman said the king tide would peak about 11.12am (AEST) on Friday.

"As a result there could be some localised flooding as the Brisbane River continues to recede after last week's flood," he said in a statement on Thursday.

"If you live in a foreshore or low lying area, by the river, or near a creek, please be prepared.

"The river and creek heights are expected to be similar to what occurred on the winter king tide in July and tidal flooding on the 21st of December last year."

He warned expected shower and storm activity could exacerbate the situation, and urged residents to sign up to the council's free severe weather early warning alert service.

"I am disappointed to hear that only about 9000 additional people have signed up for the service since the summer storm season commenced," Mr Newman said.

- AAP