Flooding, slips, rain warnings

Cyclone Debbie that hit Queensland and caused major flodding in northern New South Wales is no longer a cyclone but the resulting weather is causing havoc in the North island.

MetService severe weather warning:

ISSUED BY MetService AT 8:20 pm 04-Apr-2017

Heavy rain for many parts of the North Island and the upper South Island, and strong winds across central New Zealand

A deepening low over the Tasman Sea is forecast to cross central New Zealand overnight Wednesday and early Thursday morning and move away to the southeast later Thursday. Heavy rain has already fallen in many places and is expected to continue until the passage of the low early Thursday morning. The heaviest rain is expected from Northland to Whanganui, including Coromandel Peninsula, Bay of Plenty, the Central North Island High Country, Gisborne, Hawkes Bay,Wairarapa and the Kaikoura Coast. Rainfall totals could exceed 250mm in some areas. There is also potential for thunderstorms and downpours with hourly rainfall rates of 25 to 45mm.

This is a significant amount of rain and people are advised to watch out for rapidly rising rivers and streams, flooding and slips.

In addition, strong southeasterly winds are forecast about central New Zealand. Horowhenua Kapiti Coast, Nelson and Buller are expected to have the strongest winds, where gusts could reach 120 km/h in exposed places for a time during Wednesday. Winds of this strength could cause damage to trees, powerlines and unsecured structures and make driving hazardous.


NZ Herald Live: Weather, rain, flood chaos as Cyclone Debbie wreaks havoc on Auckland, Whanganui, Rangitikei and other parts of North Island, South Island


  • A state of emergency has been declared in Whanganui, with up to 500 people being evacuated this morning.
  • Rangitikei district is also in a state of civil defence
  • Cliff in Auckland’s Kohimarama collapses onto units.
  • Fire services responding to dozens of flooding-related callouts in Auckland as the city is lashed by rain.
  • A heavy rainfall warning applies to the entire North Island and the north and west of the South Island.
  • Some areas may get three times April’s normal rainfall in just 48 hours.
  • Central North Islanders are being told to keep survival items nearby.

Hundreds of residents are being evacuated in Whanganui, a mud slip slammed into homes in one of Auckland’s upmarket suburbs and flooding has closed roads – New Zealanders are waking up to the havoc being wreaked by the tail of Cyclone Debbie.


This is how Cyclone Debbie swung south east after hitting northern Queensland:


The MetService 3 day forecast suggests there could be a lot of rain to come yet, especially in the lower North Island and upper South Island.


Flooding, states of emergency


Cyclone Debbie moved west from the Pacific onto Australia and then south, causing serious flooding in a numbers of places in Queensland and northern New South Wales.  The remnants then headed sought east across the Tasman and has now reached New Zealand.

It is now causing flooding up and down the North Island and is going to drag some of the the rain down the east of the South Island.

After flooding and landslips a state of emergency has been declared in Rangitikei and and also in Whanganui, and there is also flooding in Auckland.

Heavy rain warnings are still in place for much of the North Island. The rain band will track south but shouldn’t be as bad in the South Island.

RNZ has a a summary of ‘what you need to know’ including…

MetService said there was a risk of flash flooding in Auckland, and there were heavy rain warnings for much of the central North Island, including Gisborne, Coromandel, Hawke’s Bay and Taranaki, as well as Auckland and Wairarapa.

and has a live blog here.