Almost 100 millimeters of rain has fallen in parts of south-east Queensland on Saturday morning, with the Bureau of Meteorology also issuing a severe thunderstorm warning for Brisbane.
Severe thunderstorms, heavy rainfall and potential flash flooding were forecast in the warning, with affected areas expected to include parts of Somerset, Toowoomba, Lockyer Valley, Brisbane City, Moreton Bay, Wide Bay and Burnett, Darling Downs, Granite Belt and Southeast Coast regions.
BoM meteorologist Andrew Bufalino said areas west and north of Brisbane had been hit by heavy rain and storms in the morning, with Delaneys Creek in Moreton Bay recording 91mm in total and Withcott, east of Toowoomba, receiving 40mm in the 30 minutes to midday.
Mr Bufalino said a strong upper trough moving through Queensland was expected to hang around for several days and combine with eastern troughs to create potentially severe weather.
The severe weather was predicted to reach Brisbane from late afternoon to night, with persistent rain expected on Sunday before easing off into Monday and Tuesday.
Mr Bufalino said it was difficult for the bureau to accurately predicted when the worst of the conditions were going to hit due to the falls being so patchy.
He said Delaneys Creek had been drenched by more than 90mm of rain but some surrounding areas had seen less than 10mm during the morning.
Toowoomba had recorded minimal rainfall but areas just to the east had received 45mm.