Heavy rain is causing flooding on some roads in Northland, with parts of the Far North getting a month's worth of rain in less than a day.
Metservice says Kerikeri has had 141 millimetres of rain today, while Kaikohe has had 139.
A Northpower spokesperson said 650 customers on the Pouto Peninsula had been without power since about 4pm.
Police advised all motorists to avoid travelling at night, unless absolutely necessary, adding that the Far North was inaccessible due to flooding.
Two welfare centres have been activated at Kamo Scout Dean at 3 Mile Bush Road, Tikipunga and the Onerahi Community Hall at 130 Onerahi Road, Whangārei.
The Far North District Council says there is flooding, slips and fallen trees throughout the region.
"Numerous key roads have been affected by flash flooding, including State Highways, and emergency services have been called to several properties hit by flooding.
"Moerewa has been particularly hard hit with reports of homes and businesses being flooded.
"Council service centres, libraries and i-SITES were closed just before 3pm today and Council staff were advised to head home before 5pm in case they were caught by inundated roads after dark.
Many staff were working from home to keep essential services operating round the clock, the council said.
Meanwhile, council contractors had responded to over 50 callouts by late afternoon.
Kawakawa RSA president Hector Davies said it had been consistently raining for the past 24 hours.
Flood waters had not stopped rising, in what was shaping up to be a hard night for the town, he said.
"I'm looking down from the RSA to the township ... the shops down the bottom of the township are already starting to get flooded."
State Highway 1 in Moerewa, at the base of Turntable Hill, and at Puketona Junction at State Highway 10 and State Highway 11 were closed.
FAR NORTH WEATHER ISSUES - ROADS CLOSED - 6:50PM— Waka Kotahi NZTA Auckland & Northland (@WakaKotahiAkNth) July 17, 2020
Due to flooding and slips from the severe weather conditions there are three sections of State Highway currently CLOSED in the Far North. Please delay travel. Details on our Traffic Map here: https://t.co/RBVTTvvq2f ^TP pic.twitter.com/5fR841lDMI
Motorists should also take care on the road between Ohaewai and Kaikohe.
A heavy rain warning is in place for the region north of Whangarei and Dargaville tonight.
The Far North District Council said the following roads were closed:
- Monument Road
- Tapotupotu Rd
- Te Paki Stream Rd
- Sawyer Rd
A large number of other roads were "affected but passable". A list of them can be found here.
Rain is expected to ease tonight.