Forget extreme heat and drought; eastern Australia is copping a real splash as widespread storms and showers are unleashed upon New South Wales and Queensland, according to weatherzone.com.au. In the last 48 hours collected rainfall has ranged anywhere from 10 millimetres to 210 millimetres, with the best rainfall in years for some locations. To 9am this morning parts of the inland Illawarra have been deluged with more than 100 millimetres. This includes Robertson, picking up 185 millimetres, the wettest day in at least five years. Further north Katoomba collected 71 millimetres to 9am, the wettest it's been since last April. This torrential downpour was able to create landslides elsewhere in the Blue Mountains. Today the rainfall has persisted as remnant moisture from the now deceased tropical cyclone Olga is drawn south by a broad trough. Storms are now raging across a good portion of the state, with flash flooding events a-plenty. Gosford recorded nine millimetres in 10 minutes and Goulburn eight millimetres in 10 minutes. In a few short hours Parkes has received 33 millimetres. The heavy falls are set over the weekend tomorrow as the trough stalls over NSW.