Heavy rain has caused slips, rising rivers and road closures in the North Island, and homes have been flooded in Auckland, Waikato, the Coromandel.
Dozens of people left low-lying areas in Whanganui and Rangitikei districts on Tuesday night as the areas declared states of emergency and prepared for significant flooding.
Read a summary of what you need to know or follow RNZ's live blog for the latest updates as they happen.
The Kohimarama apartment block where a cliff collapsed in last night's torrential rain. Photo: RNZ . Gill Bonnett
The Kohimarama apartment block where a cliff collapsed in last night's torrential rain Photo: Auckland CDEM.
Fire crews at flooded properties on Maraetai Drive, Beachlands, Auckland.
Photo: @FirecommNZ
A flooded garden in Kumeu Photo : Supplied
The Whanganui River flows over the boardwalk in the city. Photo: RNZ / Robin Martin
Long time residents Bennett Roach and Austin Hackett reckon the Whanganui River will burst its banks at the next high tide. Photo RNZ / Robin Martin
The Whanganui River early Wednesday morning. Photo: RNZ / Robin Martin
Floodwaters have offered up a feast of eels for this shag on the Whanganui River. Photo RNZ / Robin Martin
The Whanganui River early Wednesday morning. Photo: RNZ / Robin Martin
Waitotara resident Aaron Fitter is prepared to leave his home within half an hour if the river rises overnight. Photo: RNZ / Robin Martin
SH4 near the Whanganui River. Photo: RNZ / Robin Martin
Waitotara Valley Road. Photo: RNZ / Robin Martin
"Flood photos from Pipiriki today 4.4.17 at 11.53am. River level here is now well over 7.5[m]." Photo: Facebook / Whanganui River Adventures
Whanganui Tramways Trust volunteer Kritzo Venter said Tram No 12 would be hoisted out of the way of the floods. RNZ / Robin Martin
Emergency services at the San Remo apartment block in Kohimarama, Auckland, after a mudslide collapsed onto the building. RNZ / Mihingarangi Forbes
The San Remo apartments in Auckland. Photo: RNZ / Jessie Chiang
Whanganui River - starting to rise on Tuesday. Photo: Supplied
Water was also rising at the Waitotara River. Photo: RNZ / Robin Martin
Waitotara store and pub co-owner Mary Martin says locals have been worried about the level of the river at Riminui. Photo: RNZ / Robin Martin
Rain hits Auckland. Photo: RNZ / Leilani Momoisea
Whanganui's Paul Chapman, right, with the army of volunteers who have helped empty his home ahead of expected flooding. RNZ / Robin Martin
Bruce Tompkin, who had been helping place sandbags for a Taupo Quay businesswoman, talks to civil defence personnel. RNZ / Robin Martin
Sandbags on Taupo Quay, Whanganui. RNZ / Robin Martin
Sandbags outside Sarjeant on the Quay. RNZ / Robin Martin
Sandbags on Taupo Quay, Whanganui. RNZ / Robin Martin
The San Remo apartment block in Kohimarama. RNZ / Mihingarangi Forbes
A slip at Tamaki Drive under the Bastion Point look-out in Auckland. RNZ / Mihingarangi Forbes
A slip at Tamaki Drive under the Bastion Point look-out in Auckland. RNZ / Mihingarangi Forbes
Are you being affected by the wet weather? If it's safe for you to do so, you can email photos and video to RNZ at iwitness@radionz.co.nz. Please include your contact details if you are willing to speak to one of our reporters.