Queensland's wet weather continues with more than 400mm of rain falling in three hours, flood warnings issued

An "astronomical" amount of rain has drenched parts of Queensland with Wide Bay and the Sunshine Coast seeing a month's worth of rain in an hour and evacuations have been ordered in Lockyer Valley. Key points: An emergency alert has been issued for Noosa, Gympie, Toowoomba, Lockyer Valley and North Burnett residents to stay off the road amid fear of flash flooding A coastal trough has moved onshore after building over the ocean, bringing isolated falls of 423mmm in three hours Townships in southern Queensland have been cut off as authorities fear properties will be inundated in the Gympie area The Bureau of Meteorology said a coastal trough came onshore overnight and the peak of the system was forecast to hit on Friday and into Saturday. Forecaster Felim Hanniffy said the rainfall totals were "astronomical" and the Sunshine Coast could see "a repeat performance" of the falls that triggered widespread flooding earlier this week as the system moves slowly south. In the Lockyer Valley, Mr Haig said there had been rapid rises in stream levels, with several water-based rescues and "significant rainfall" over the Toowoomba Range and into Toowoomba. "I believe there's some challenges and some water rising around the roads along the Warrego Highway around the Lockyer Valley so please be mindful when you're travelling those directions," she said.