The Goonyella system was closed from 11pm on Saturday night until 6pm on Sunday and the Blackwater system was down for 8 hours on Sunday.

This morning QRN said speed restrictions on both lines remained in place while the Moura and Newlands systems are continuing to operate.

A first wave of wet weather in Central Queensland on December 2 caused flood waters to cut off access roads to the Curragh mine.

Two days later the company restarted limited mining operations and ongoing construction of its new preparation plant, with all operations getting back to normal on December 7 after the flood peaked at the Mackenzie River.

But the deluge on Saturday affected all mining at the Curragh, Curragh East and Curragh North pits, although access roads were unaffected.

Wesfarmers has not changed the Curragh force majeure it declared almost two weeks ago.

Wesfarmers Resources managing director Stewart Butel said operations were starting to return to normal.

“Curragh’s full-year metallurgical coal sales volume is now in the range 6 to 6.5 million tonnes, subject to a return to more normal weather conditions for the remainder of the year,” he said.

“The revised sales volume compares to the recent forecast of 6.2 to 6.7 million tonnes.”

There is still a threat of more rainfall ahead.

The Bureau of Meteorology has a current flood warning for the Fitzroy River Basin and has forecasted “possible” showers and thunderstorm activity for the coal towns of Clermont, Moranbah and Emerald.

The Central Highlands and Coalfields district is also forecast to face isolated showers and thunderstorms over the next couple of days.

Six people have died in the state this month as a result of the severe weather.