Source: Bureau of Meteorology

For people in the Mid North, Riverland and parts of the Adelaide Metropolitan, Mount Lofty Ranges, Eastern Eyre Peninsula, Yorke Peninsula, Flinders, Murraylands and North West Pastoral districts.

Issued at 4:58 pm Thursday, 20 April 2017.

Thunderstorms are occurring in parts of the state.

In the south of the State, thunderstorms and strong showers are likely to produce heavy rainfall that may lead to flash flooding in the warning area over the next several hours. Locations which may be affected include Whyalla, Renmark, Port Pirie, Clare, Gawler and the northern suburbs of Adelaide.

In the North West Pastoral district, thunderstorms are likely to produce heavy rainfall that may lead to flash flooding and damaging wind gusts in excess of 90 km/h in the warning area over the next several hours. There is also a chance of large hail in the far north west with thunderstorms. Locations which may be affected include Amata and parts of the Great Victoria Desert.

Severe thunderstorms are no longer occurring in the Upper South East and Lower South East districts and the warning for these districts is CANCELLED.

Roseworthy has received around 37 mm in the 1 hour to 2:40 pm.

The State Emergency Service advises that people should:
* Secure or put away loose items around your property.
* Move cars under cover or away from trees.
* Keep clear of fallen power lines.
* Don't drive, ride or walk through flood water.
* Keep clear of creeks and storm drains.
* Stay indoors, away from windows, while storms are nearby.