The North Island will get a brief break from the rain today, but Westland and Buller are expected to see the worst of the wet weather crossing the South Island today.
According to MetService, Westland is under a heavy rain watch from 3pm this afternoon to 11pm on Tuesday, and Buller is also under a heavy rain watch from 8pm yesterday to 9pm today.
Meanwhile, Tasman is under a heavy warning until 5pm today.
MetService meteorologist Aidan Pyselman said the main rain-bearing front that brought flooding to Nelson and Marlborough yesterday will drag southwestward.