Severe thunderstorms with destructive winds, heavy rain and large hailstones are set to lash south-east Queensland this afternoon as the region still reels from last week's flood disaster.
Earlier on Wednesday afternoon, storm cells were detected near Gympie and Noosa on the Sunshine Coast, with a warning for damaging winds and heavy rain that could lead to flash flooding.
Later in the day, a fresh warning was issued for Logan, Scenic Rim and the Gold Coast.
Bureau of Meteorology (BOM) duty forecaster Rohan Smith said an unstable atmosphere was creating perfect storm conditions, with Brisbane, the Gold Coast and the Sunshine Coast the main areas of concern.
"We've got a south-easterly surge coming up the New South Wales coast," Mr Smith said.
"[It is] very dynamic … going to kick off some pretty severe thunderstorms around the north-east New South Wales, south-east Queensland area.
"We're actually looking at potentially destructive winds, which is a category above damaging, which is a gust of 125 kilometres per hour or greater.
"So quite severe thunderstorms on the cards."
Mr Smith said up to 100 millimetres of rain could fall in some areas, leading to flash flooding in already saturated catchments.
"If you are under a thunderstorm cell, you could get 100mm in a relatively short period of time, which is fairly concerning," Mr Smith said.
"So flash flooding is a concern today with these storms.
"Potentially the areas that were the worst hit by the heavy rainfall recently, they could see heavy falls from a thunderstorm today.
"[We are] looking at some thunderstorms moving across the Brisbane area from the west during the morning … but that's only really a prerequisite to real action, which is kicking off in the afternoon."
