Residents on the eastern Eyre Peninsula are being warned to brace for potentially more flooding as a result of rain through tonight.
Meanwhile, those along the east of SA, including the Riverland, Upper South East and Lower South East are also under a severe thunderstorm warning from the Bureau of Meteorology, as are parts of the Flinders and North East Pastoral area.
The State Emergency Service issued an update for people on EP to be prepared with some rain forecast.
"Even though rainfall is forecast to be less than previous days, when it falls on top of saturated catchments and already damaged roads the impacts may be quicker and greater than normal," it said.
"Be aware that creeks may flow faster than normally expected and that overland flow is also possible.
"There are also risks from contamination of floodwaters, particularly from inundated septic systems and standing water water may result in an increase in mosquitos breeding.
"Be aware that snakes may also be present in the area."
Cummins in particular is under flood watch for the Peelina Creek after 23 millimetres fell to 9am this morning, and 100mm has been recorded in the past seven days.
BoM senior forecaster Tom Boeck said the forecast did not indicate any more "significant" falls across the EP.
Those along the eastern part of the state, and the pastoral areas, are warned there may be damaging winds and heavy rainfall.
Mr Boeck said while the rain was not likely to reach the extreme totals of the past few days to the west and centre of the state, there was still the potential for isolated storms.
He said the rain in the Riverland and South East would be mostly felt tonight before contracting tomorrow (Friday), but could continue on in the pastoral areas and Flinders.
"Between now and Monday, we're forecasting 15-25mm, but it could be higher," he said.
"There is still a lot of moisture in the atmosphere so we possibly could get isolated falls up to 100mm."
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