The day a megastorm flipped planes, floated cars in Brisbane

Five years to the day a megastorm tore through south-east Queensland and particularly Brisbane, the weather bureau expects more severe storms to hit the region.

The storm on November 27, 2014, flipped light planes at Brisbane's Archerfield Airport with a 140km/h wind gust and dumped so much rain that cars floated down flooded inner-city streets.

Planes flipped over at Archerfield Airport by a 140km/h wind gust during Brisbane's severe storms in 2014.Credit: Twitter

Meteorologist Jess Gardner said storms forecast for Wednesday were not expected to be in the same league as that five years ago, when reports of hailstones the size of cricket balls were received.

Light aircraft at Archerfield Airport were left upended and RACQ LifeFlight's base of operations at Archerfield was severely damaged.

Part of the roof at All Hallows' School in Brisbane city was torn off by powerful winds.

RACQ LifeFlight's base of operations at Archerfield was also severely damaged.

Another picture from Archerfield showed a semi-trailer tipped over by the strong gusts.

The megastorm also caused severe flooding across the River City, with stunned commuters standing on the platforms at Fortitude Valley Train Station as water covered the tracks around them.

Cars were also damaged, with part of a roof picked up by the storm and sent crashing down onto parked cars at the Uniting Church in Woolloongabba.

Cars also went underwater in Bowen Hills and East Brisbane as the flood rose rapidly.

Ms Gardner said the storms set to arrive in the south-east on Wednesday to mark the megastorm's fifth anniversary could generate damaging winds and large hail, but flooding was not expected.

"There is a southerly change moving up the coast that is likely to trigger these storms through the south-east as it moves north," she said on Tuesday.

"The matter of exactly where the southerly change is going to be at the time of maximum heating tomorrow will bring us all of the right ingredients for severe storms.

"Where the storms will exactly be and where the severe conditions will be is dependent on the timing of the southerly change.

"We are likely to see storms through a decent amount of Queensland tomorrow from the Gold Coast to Brisbane and the Sunshine Coast, all the way up to the Gulf of Carpentaria.

"We will probably see some widespread 10-20 millimetre falls tomorrow with localised higher rainfall totals for those areas directly underneath the storms, which is uncertain at this stage."