New Zealand’s authorities have ordered evacuations in towns along the north coast, where severe weather warnings are in place ahead of Cyclone Cook.

Heavy rain has begun to hit the North Island, ahead of what is being called the worst storm in generations.

Cyclone Cook is due to make landfall from 19:00 local time over Bay of Plenty. Officials have warned of high waves, storm surges and landslides.

It is then expected to move to the South Island early on April 14.

Cyclone Cook comes after severe floods caused by the remnants of Cyclone Debbie hit some parts of New Zealand last week.

The storm – expected to bring torrential rain and winds gusting at up to 93mph – has been classified as an extra-tropical cyclone.

Image source Wikimedia

According to the New Zealand MetService, that means it has changed into a different kind of weather system on approach to New Zealand, but has not necessarily weakened or been downgraded.

Parts of New Zealand’s North Island are now under a state of emergency, with residents in the low-lying parts of Coromandel, which has already seen landslips and closed roads, being told to leave immediately.

Schools and businesses across the island have been shut early while residents in Auckland, which has already seen flooding, have been stocking up on emergency supplies.

The New Zealand military and emergency service teams are on standby. Flights across the country have either been delayed or canceled, and national carrier Air New Zealand has suspended operations from Tauranga Airport in the North Island.

Cyclone Cook formed around Vanuatu on April 9 and moved towards New Caledonia, bringing heavy rain and winds and causing cuts to power and water supplies. One man died in New Caledonia when he was trying to cross a river to a friend’s home.

New Zealand weather officials say that Cyclone Cook will be the worst to hit the country since 1968.

They have also warned that it is a “really tightly packed cyclone” that will bring a “phenomenal” amount of rain and wind, reported The New Zealand Herald, compared to Cyclone Debbie which was more spread out.

Cyclone Debbie hit Australia at the end of March, before its remnants moved towards New Zealand.

Authorities are now worried about how Cyclone Cook will impact land that is already saturated from heavy rains.