“The extreme rainfall across Queensland continues to affect coal rail network availability and has resulted in significant speed restrictions,” Asciano said.

“The Blackwater coal system remains closed and the Goonyella coal system continues to operate well below capacity.”

While an undisclosed number of Pacific National’s customers have issued force majeure notices as a consequence, weather problems are also affecting NSW.

“NSW coal haulage volumes are being impacted by coal chain congestion and the restricted availability of coal,” the company said.

“In particular, weather-related issues in the Gunnedah Basin and the Ulan network will likely reduce the average haul length anticipated in NSW during the fiscal year.”

Asciano cannot assess the implications for its revenue until the severe weather subsides.

“Our thoughts go out to all those tragically impacted by the severe weather conditions in Queensland,” chief executive Mark Rowsthorn said.

“We will be doing everything possible to assist all of our employees who are affected by these terrible events.”

While mines linked with the damaged Blackwater rail system are isolated and not able to deliver coal, the Baralaba mine appears to be the most inundated from rainfall at this stage.

New Hope recently suspended production from its mines, with its key Acland mine roughly 50 kilometres southeast of the flood-hit town of Dalby.

The Rolleston open cut operation has also shut down production and is focused on recovery because of the high rainfall.

Gloucester Coal has received above average rainfall in the Gloucester Basin, but is well placed to respond to higher demand for coking coal.

“Gloucester Coal has been actively expanding its output of coking coal from the Stratford and Duralie operations and is well placed to maintain a high output despite above average rain in the Gloucester area,” the company said yesterday.