South-east Queenslanders experienced another scorcher today, as the region endures unusually high humidity.
Brisbane recorded 34 degrees Celsius by midday, but the Bureau of Meteorology said it felt more like 38.3C.
On the Sunshine Coast, Nambour had an apparent temperature of 40C, Gympie felt like 37.7C and in Central Queensland, Lochington hit 37C but felt like 44C.
Despite the muggy start to the day, severe storms developed in the south-east this afternoon, with a large swathe of Queensland also put on alert.
With them came cooler temperatures.
The bureau is warning more severe weather is forecast for later today, after wild storms yesterday saw a tornado destroy roofs in Logan and left more than 30,000 homes without power.
BOM hazard response coordinator Brooke Pagel said there was a high risk of severe thunderstorms and intense rainfall over inland parts of the south-east this afternoon and tonight, including the southern border ranges, Scenic Rim and Main Range National Park.
She said the risk of flash flooding could increase if heavy rainfall coincided with high tides.
"These conditions and the risks of thunderstorms with heavy rain that may lead to flash flooding will shift eastwards tomorrow [Thursday]."
Humidity and temperatures to drop tomorrow
The humidity today, brought in from the north, is well above what is typically seen around this time of year and will hang around for most of today, the bureau said.
To exemplify the out-of-the-ordinary humidity, the dew point in Brisbane today is in line with Cairns or Darwin.
The BOM expects temperatures to drop "dramatically" tomorrow when a "strong southerly change" sweeps through the south-east.
The heat has caused a massive demand for energy across the state, which has prompted the Australian Energy Market Operator (AEMO) to make an urgent call for out-of-market reserves.
AEMO has also asked the state's power generators to increase supply and for industrial and commercial business to reduce their demand.
Energy supplier Powerlink said Queensland's power grid survived overnight, but asked people to use electricity sparingly.
Queensland was forecast to reach an electricity demand peak of 10,032 megawatts on Tuesday, just shy of its 2019 record.
Clean-up after 'supercell' and tornado yesterday
Today's temperatures were not as intense as yesterday's, however no records were broken.
Overnight in Brisbane, the apparent temperature hit between 39C and 40C, about 7C above the actual temperature.
The mercury climbed to 34.7C in Brisbane on Tuesday, but when combined with the humid conditions it felt like 40C by about midday.
The weather took a turn by the late afternoon, when a supercell formed and battered the south-east, causing damage to several homes and buildings.
The BOM said the storm event "developed rapidly", bringing strong winds and about 20 to 35 millimetres of rain to parts of Brisbane and Logan.
A tornado formed at Browns Plains and quickly brought down power lines.
More than 30,000 households were without power, particularly around Woodridge.
About 160,000 lightning strikes were recorded and the SES said there were 60 requests for assistance, with six houses substantially damaged.
Meteorologist Rosa Hoff said the tornado was short-lived and disappeared as quickly as it came.
"The tornado did lead to a lot of that enhanced damage around the place," she said.
Simon Lewis, manager of ADRA Community Care Centre in Logan, said the tornado felt like a train coming.
"The rotating clouds were just swirling around above us and suddenly, we were just hit with what felt like a massive rush of a train coming but there were no trains," Mr Lewis said.
In a few seconds, the rain changed from screaming in from the west to coming from the east, so that tornado must have come fairly close to us."
