A large complex low pressure system over the Tasman Sea sea is expected to move onto New Zealand today and Friday, and an associated front should affect Northland overnight Thursday and Friday morning. A Heavy Rain Watch is now in force for Northland.

Heavy Rain Watch

Area: Northland

Valid: 9 hours from 1:00am Fri 18 Nov to 10:00am Fri 18 Nov

Forecast: A period of heavy rain. Thunderstorms are possible. There is also a risk of localised downpours, especially in the north and east. Rainfall amounts may approach warning criteria, especially about the eastern hills.

People are advised to keep up to date with the latest forecasts in case any changes are made, or more areas are added.