Western SA prepares for severe thunderstorms

South Australians brace for severe thunderstorms that could cause flash flooding across the Eyre Peninsula and North West Pastoral District.

The State Emergency Service has warned that the remnants of Cyclone Tiffany are expected to bring heavy rain to Port Lincoln, Whyalla, Cleve, Woomera, Tumby Bay and Kimba as of around 3.30pm CDST on Sunday.

“Severe thunderstorms are likely to cause heavy rains that may cause flash flooding in the warning area over the next few hours,” the SES said in a statement.

Meanwhile, a watch and action alert for severe thunderstorms with winds gusting more than 90 km/h and heavy rain with dangerous flash flooding for the West Coast, Yorke Peninsula, Kangaroo Island and North East Pastoral Districts has been lifted.

The town of Kadina on the Yorke Peninsula recorded 83mm of rain in the four hours to 1pm on Sunday, the wettest day on record.

The SES warned that the danger may not be over for the West Coast, Yorke Peninsula, Kangaroo Island and North East Pastoral districts.

“Severe thunderstorms may develop again later today and the situation is being monitored,” the agency said.

The Bureau of Meteorology has also issued a possible “widespread flooding” warning for 14 catchments and regions after up to 120mm of rain fell in some areas in 24 hours as of 9am.

Another 30-80mm of rain is likely to fall, with isolated higher falls of up to 120mm potentially isolating some communities, the forecaster said in the 48 hours to midnight Monday.

SES crews have rescued at least 11 people near Coober Pedy after floodwaters cut off remote communities and destroyed part of the Olympic Dam Hwy between Woomera and Roxby Downs.

Local rest stops, pubs and trailer parks posted photos of ocher torrents flowing over part of the asphalt road, which has subsided about two meters.

Roxby Council said South Africa’s Department of Infrastructure and Transport is trying to reopen a lane of the motorway by late Sunday afternoon.

“A significant portion of the road was washed away in yesterday’s heavy rains,” the council said in a Facebook post.

“Currently road closures are in place at Roxby Downs and Port Augusta.

“Motorists are advised to reschedule their travel plans to or from the region whenever possible.”

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