Severe weather has brought down trees and caused other damage in Adelaide’s south with the system likely a cold-season tornado, meteorologists say.

A vigorous cold front associated with a complex low-pressure system moved across South Australia overnight bringing damaging winds and heavy rain to large parts of the state.

Among the areas to feel the brunt of the storm was a section of Morphett Vale, in Adelaide’s south, where several trees were brought down.

The damage was most severe in one street where debris fell on homes, fences and cars.

At least seven properties were reported damaged.

The Bureau of Meteorology said the impact was characteristic of a cold-season tornado where bursts of wind and rain from cold fronts sweep up from the Southern Ocean.

The State Emergency Service responded to 26 calls for assistance since midnight and still has 11 jobs ongoing, most of those involving trees down across the Adelaide Hills.

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To 9am on Wednesday, Adelaide recorded more than 10mm of rain from the weather system but falls were much high in the hills with Mt Lofty getting more than 25mm.

Good falls were also reported across the grain-growing regions of the Eyre Peninsula with 17mm in Cummins.

The bureau said rain would continue for the rest of the week with falls in Adelaide expected to reach about 6mm daily until Saturday.

A severe weather warning also remained in place for SA’s mid-north and Riverland regions where wind gusts of up to 85km/h were possible.

Centres likely to be impacted included Maitland, Whyalla, Port Augusta, Clare and Renmark.

AAP

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