Over the past 24 hours, a northwest cloud band has delivered some spectacular rain from the northwest WA to the inland SA and the NT. Cygnet Bay in Western Australia saw 155mm in the 24 hours to 9am Tuesday, which is four times the May average and highest May rainfall in at least 50 years. Giles saw its highest May rainfall in 21 years will 50mm hitting the rain gauge. In the Northern Territory, Curtin Springs reached 61mm, while Uluru (Yulara) saw 42mm which is more than three times the average May rainfall. Other notable falls include 47mm in Ernabella, South Australia, making it the highest average May rain in at least 16 years. The 38mm that fell in Marla is the highest May rainfall in 28 years. As this system shifts to the east, QLD and NSW residents will be left holding the umbrella over the coming days. A large high pressure system will build over the nation in it's wake, bringing mostly clear conditions by the weekend for most of the country.