About 15 firefighting crews are working to control a blaze that destroyed a shed as Queensland remains under an extreme fire warning.

A “prepare to leave” alert was issued to residents in the Deepwater region near Gladstone in central Queensland with a fire heading toward Baffle Creek.

About 15 crews are fighting the fire that left a shed engulfed in flames and are expected to remain overnight.

Queensland Fire and Emergency Services (QFES) said the other significant blaze crews were battling was located at Gracemere, near Rockhampton.

Tweet from @QldFES

Crews are backburning and dampening down a few hot spots after a shed caught fire there as well.

Almost 60 fires overall were being monitored by QFES on Tuesday night.

A blaze at Wutul and East Cooyar, north of Toowoomba, had prompted warnings from authorities but locals have since returned to their residences.

Extreme fire danger warnings are still current for areas in the Central West, according to the Bureau of Meteorology.

Daytime temperatures in the mid-30s were recorded on Tuesday with 25km/h to 40km/h south-easterly winds.

Winton and Longreach reached 36 degrees and Barcaldine hit 35 degrees, according to the Bureau of Meteorology.

The wind and fires led to a smoke warning for the Greater Brisbane region, with conditions expected to persist until at least Wednesday.

“Smoke is impacting the region due to fires burning in the south-east corner and further west,” QFES posted on Facebook late on Tuesday.

“These smokey conditions are expected to persist until at least tomorrow, so if you have a respiratory condition please shut doors and windows and keep medications close by.”

-AAP