due to the threat of heavy rains from oswald, flood warnings were issued for much of northern new south wales. by 28 january, moderate and major flood warnings were in place for the bellinger, kallang, macleay, manning, nambucca, and tweed rivers, as well as camden haven, the clarence valley (including the orara river), and hastings. severe weather warnings were also in place for much of the state, indicating the threat of heavy rains, destructive winds, and dangerous seas. hundreds of travellers were stranded at sydney airport as flights were cancelled due to dangerous winds.