A trough over WA is producing isolated thunderstorms. An extension of this trough is also producing showers over over northern SA and NSW. A broad region of low pressure over the Top End is generating heavy showers. A moist westerly flow is producing showers over VIC and TAS.
18:16 EST Heavy rain has stranded about 40 people at William Creek in the South Australian outback due to flooded roads and low cloud has grounded aircraft.