Hundreds of homes are at risk and two properties have already been claimed as the Deepwater and Round Hill bushfires force hundreds to flee from the central Queensland coast communities.

The Queensland Premier said much of the state was in the grips of "unprecedented" heatwave conditions on Monday, which, combined with high humidity and strong winds was making an already tough battle even harder for firefighters.

A hundred rural NSW firefighters are on their way to help fight the central Queensland bushfires. Credit:NSW RFS

Premier Annastacia Palaszczuk said the fire had generated flames 10-12 metres high, covered 11,000 hectares and forced the closure of Wartburg State School.

"We expect the fire to turn and head back towards Deepwater and Baffle Creek," she said.