Cyclone Vaianu is expected to move south across the North Island on Sunday, the 12th of April, bringing severe weather conditions across much of the motu.
MetService has upgraded Great Barrier Island and the Coromandel Peninsula to a Red strong wind warning, with damaging gusts of up to 140 kilometres per hour forecast between 5am and 6pm on Sunday.
Authorities warn these winds pose a threat to life, with the risk of flying debris, falling trees, widespread damage to powerlines and roofs, and dangerous driving conditions.
Heavy rain warnings are also in place across several regions.
In Northland, south of the Bay of Islands to Hokianga Harbour, up to 80 millimetres of rain is expected overnight Saturday into Sunday morning, with the risk of rising rivers, surface flooding and slips.
Auckland and Great Barrier Island are forecast to receive between 70 and 100 millimetres of rain, alongside heavy swells and possible coastal inundation.
The Coromandel Peninsula and Bay of Plenty, including Rotorua, could see between 150 and 180 millimetres of rain, with intense downpours and an increased risk of flooding and landslides.
Strong wind and heavy rain watches and warnings are in force for much of the North Island and the upper South Island through Sunday and into early Monday, with more areas likely to be upgraded as the cyclone approaches.
Emergency authorities are urging people to stay up to date with forecasts, adjust travel plans, and follow all advice from local officials.
People in affected areas are being advised to stay indoors where possible, avoid unnecessary travel, and prepare for possible power and communication outages.
Authorities are urging whānau to prepare now – keep listening to the radio for updates, have a go bag ready, avoid driving through floodwaters, and check in on neighbours, friends and whānau.
