An already sodden Far North Queensland could be at risk of more flooding as a tropical low builds off the Gulf of Carpentaria. “Next week, 18U may move westwards across the Top End.”A tropical low continues to build over the Gulf of Carpentaria. Credit: BOMThe low is expected to linger over the Northern Territory or the Gulf of Carpentaria for several days. “Catchments in northern Queensland remain wet to saturated with areas of flooding already occurring following recent rainfall,” BOM said. Two north Queensland farmers were rescued from their rooftop earlier this week.