“The heaviest rainfall will be associated with shower and thunderstorm activity, which is likely to be hit-and-miss in nature across the warning area,” the bureau said.
“There remains some uncertainty in the movement and timing of features but the heavy rainfall risk is expected to persist into Tuesday afternoon.”
Eighteen roads on the Gold Coast were closed on Monday due to flooding.
Police urged people to resist travel as wild weather returned to the southeast.
“Even in the early hours of this morning we were detecting drivers speeding, not driving to the conditions and being an absolute menace,” Assistant Commissioner Chris Stream said.
Queensland’s southeast has been lashed by severe weather since Christmas Day, with storms leaving more than 100,000 residents in blackout.
Acting Environment Minister Grace Grace told reporters 80 to 90 per cent of those affected now had their power restored but those still without may have to wait until January 5 to be reconnected.
“There are still some areas around Jimboomba, Mount Tamborine where we’re having to rebuild the network,” Grace said.
“We’ve got every available crew on deck making sure they can restore them but with weather like today and the severe weather warning is causing a bit of havoc with that.”
Flash floods could also impact northern NSW, with residents in Lismore, Tweed Heads, Murwillumbah, Byron Bay, Casino and Kyogle told to stay informed about developing conditions.
Persistent showers are expected to continue throughout Monday with potential three to six-hourly rainfall totals between 80mm and 160mm and 24-hourly totals exceeding 250mm.
“Localised intense rainfall is possible under areas of persistent heavy thunderstorms,” the bureau said.
In the 24 hours to 9am on Monday, Limpinwood in NSW received 307mm, Numinbah 297mm, Coffs Harbour Airport 205mm and Sawtell 190mm.
Meanwhile, heatwave conditions will continue to roast parts of northern Australia into the new year, with temperatures expected to exceed 40C.
Large swathes of northern Australia have had a sweltering start to the new year with temperatures soaring into the 40s.
A heatwave warning is in place for parts of Queensland, the Northern Territory and Western Australia.
In WA’s Marble Bar is expected to reach 45C on Tuesday with similar maximums forecast across the next seven days.
The town’s heat gauge has been showing scorching temperatures higher than the bureau’s official readings in recent days, with thermometers at the local RSL registering 51C.
The heatwave conditions are expected to ease slightly throughout the week in the Pilbara and Kimberley regions.
The NT is expecteing temperatures up to the low 40s in the coming days, with overnight temperatures only cooling to the mid to high 20s.
Borroloola, in the Gulf of Carpenteria, is tipped to reach 41C on both Monday and Tuesday.
Severe heatwave conditions are expected to continue for the Top End, then begin to ease over southern and western areas of the Territory.
