Flood warnings, road closures through central, south west Qld

One of the largest falls was at Norwood, just to the north of Blackall, where Stew and Emma Taylor recorded 270mm in a four-hour period in the early hours of Sunday morning.

The resulting flood, which entered the lower parts of the homestead and swept through nearby machinery sheds, was higher than the record level of the 1990 flood.

Looking on the bright side, Mr Taylor said it was better than dust.

"I was watching it on the radar at 3am - it was this big red and yellow cell that just didn't move," he said. "We wouldn't want any more rain for a couple of days now."

He was preparing to hire a helicopter to check out damage done on the rest of the property.

Further north, Sally Campbell at Clarenden was on the edge of the storm cell, measuring 143mm overnight, describing her Sunday morning scene as "water views of the Douglas Ponds".

A day earlier a tornado-style storm brewed up out of a scud, hitting from all directions to rip a wall out of a shed and dumping 37.5mm in her rain gauge.

The Landsborough Highway was closed north of Blackall on Sunday morning when the Home Creek midway between Blackall and Barcaldine reached 0.9m.

Blackall itself recorded 90.8mm overnight.

According to Bureau of Meteorology forecaster Shane Kennedy, there had been widespread falls of between 50-100mm in an area from Blackall to St George, and lots of totals between 100-150mm.

The highest was 248mm at Upper Amby Creek, while Warroo, south of Mitchell, recorded 185mm.

Another fall of note was 210mm at Baradine north of Charleville.

In Charleville , the town recorded 117mm, nearly twice its February average of 66mm.

Mr Kennedy said in the south west there were flood warnings for most creeks and rivers associated with the Balonne, Maranoa and Warrego Rivers, as well as the Bulloo at Quilpie.

There was major flooding in the Balonne River at Surat and Weribone, in Muckadilla Creek at Karoola Park, and in the Maranoa River at Springfield, which had recorded 165mm on Saturday night.

Morven's Louise Winten said the "Angelalla gap" had been broken with 145mm, while they had received 125mm south of Morven at Maryvale.

"We were probably on the higher end of the rain around here," she said. "It's so exciting. Our western country had only had 16mm of rain before this."

Cindy Taylor, who lives with her family at Hodgson, 20km west of Roma, has been isolated for the day with the Warrego Highway cut to both her west and east.

She said they'd had 100mm of rain, starting at 5pm on Saturday and easing up at 4am on Sunday.

"It was good soaking rain where we were," she said.

Ms Taylor said that with creeks rising rapidly, it was important to abide by the "If it's flooded, forget it" rule, especially after a sightseeing couple were now in the same situation as themselves, crossing Bungeworgorai Creek and discovering they couldn't get back.

The BoM's Mr Kennedy said rainfall in the region on Sunday was more steady rather than the intense falls of Saturday.

"There's a low risk of heavier falls as the cloud cover is keeping it too cool for thunderstorms to fall," he said.

Charleville's temperature on Sunday was 10 degrees below the February average of 34 degrees.

He said the upper trough that was driving the weather was weakening as it moved east, and the Darling Downs could see some light showers in the next day or two.

The low in the Gulf is still developing and drifting south, Mr Kennedy said, but wasn't likely to impact Queensland.

If it did develop into a cyclone, it would move towards Central Australia, and was unlikely to bring rain to Queensland's far south west.