Source: Bureau of Meteorology

For people in Lower South East and parts of Upper South East districts.

Issued at 10:26 am Saturday, 28 February 2026.

Slow moving, heavy thunderstorms are occurring over the over the Lower South East this morning.

Weather Situation: A very humid airmass is in place near a stationary trough located over the far southeast of SA. Slow moving lines of thunderstorms developing in this environment will be capable of producing heavy rainfall.

Severe thunderstorms 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 Mount Gambier, Naracoorte, Robe, Millicent and Lucindale.

Naracoorte recorded 28.2mm in the 2 hours to 10:15am.

The State Emergency Service advises that people should:
* 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.