Cummins Airport has received 11.6mm of rain since 4pm yesterday while Cleve recorded 5.4mm overnight, according to the Bureau.
Rain is expected to ease in the afternoon although the thunderstorms may lead to flash flooding in the early hours of Wednesday, the Bureau warned.
Earlier on Tuesday, the SES urged residents on the western Eyre Peninsula to stay alert and said the SES was operating at a “heightened level of preparedness”.
“Where possible, stay on main roads with hard surfaces, as unsealed roads may become impassable, and people run the risk of becoming stranded,” SES state duty officer Dave O’Shannesxjmtzywsy said.