Flooding rapidly developed across parts of southeast Queensland on Monday following more than 240 mm of rain in the last two days.

A near-stationary low pressure trough being fed with moisture-laden winds caused persistent and heavy showers over southeast Qld and northeast NSW on Sunday and Monday.

Rain gauges on either side of the border collected more than 200 mm across the two-day period.

Some of the standout totals between 9 am on Sunday and 6:08 pm AEST on Monday included:

• 245 mm at Natural Bridge (Qld)
• 240 mm at Springbrook National Park (Qld)
• 236 mm at Limpinwood (NSW)

A rain gauge at the Gold Coast Seaway registered 50 mm in two hours late on Monday afternoon, which is close to half the long-term May monthly average.

Image: Radar and satellite images showing persistent rain over southeast Qld and northeast NSW on Monday, May 18, 2026. Source: Weatherzone.

Rivers rose rapidly in response to the two-day deluge. As of 6 pm AEST on Monday, moderate flooding was affecting the Pimpama River and the Lodor and Worongary Creeks in southeast Qld. Numerous roads were also closed across the region due to flash flooding.

Rain will continue over parts of Qld and NSW – including flooded areas in southeast Qld – during Monday night into Tuesday morning. Drier weather will return from Tuesday afternoon and night as the system moves off the country’s east coast.

Check the latest flood warnings and road closures for the most up-to-date information as this wet weather continues.