The storm brought record rainfall in the north coast, with towns near Port Macquarie, such as Kendall, seeing record rainfall of more than 400 mm (16 in) between 19 and 20 March.[12] According to the Bureau of Meteorology, in an event described as "volatile, dangerous and dynamic", the heavy rainfall event was caused by a blocking high in the Tasman Sea (between Tasmania and New Zealand) that directed a strong, low pressure trough towards the NSW coast.[13]