Rain and thunderstorms were widespread across Australia on Monday and weather warnings remain in place for parts of four states this morning. Streets of Adelaide were underwater yesterday afternoon following 27mm of rain in just over two hours. This was the city's heaviest rain in six weeks and the heaviest for March in six years. The heaviest rain in South Australia during the last 24 hours was 99mm at Lucindalle in the Lower South East District. Nearby, Mount Gambier picked up 50mm this morning, which is more than a month's worth of rain for this time of year. Most of the rain gauges across Victoria registered some rain during the 24 hours to 9am today, although the heaviest falls occurred over elevated terrain. Strath Creek, located near Yea in the North Central District, received 63mm, which is their heaviest rain in five years. Rosewhite in the North East District registered 60mm, their heaviest in 10 months. Melbourne managed its heaviest rain in six weeks with a paltry 4mm. Rain and thunderstorms were widespread across New South Wales on Monday and Tuesday morning as well. The heaviest falls during the last 24 hours occurred in the state's northeast and southeast. Four rain gauges in the Tweed Catchment registered more than 100mm during the last 24 hours. Couchy Creek's 102mm in this time brings their total for the last seven days to 515mm. Further south, Condobolin Airport received 58mm in the 24 hours to 9am today, their biggest drop in four years. Cooma's 70mm from storms yesterday and overnight is more than a month's worth of rain and their heaviest daily rain since last June. Eastern Queensland was the target of impressive downpours on Monday and Tuesday morning. The heaviest 24 hours totals up to a 9am today were 141mm at Upper Springbrook in the far southeast, 136mm at Samuel Hill near Yeppoon and 134mm at a rain gauge to the west of Mackay. Brisbane registered 91mm in the last 24 hours, the heaviest daily rain in two months. The city has now collected 167mm since Friday, making it their wettest four day spell in almost two years and the wettest for March in 25 years. Thunderstorms will continue to affect every mainland state and territory today and rain is likely in Tasmania. As of 11am EDT, a severe weather warning was current in Victoria, severe thunderstorm warnings covered parts of South Australia and New South Wales and flood warnings remained in force for parts of New South Wales and Queensland. Showers and thunderstorms will continue to affect multiple states and territories each day for the rest of this week as a series of low pressure trough linger over Australia. The latest weather warnings are available at: http://www.weatherzone.com.au/warnings.jsp