The weather is worsening for the North Island as an "active front" lashes New Zealand.
MetService said a subtropical low is moving south over the upper North Island on Sunday and Monday, bringing periods of heavy rain and easterly gales.
Weather warnings and watches remain in place, with NIWA warning rivers will "respond rapidly" to this heavy rain.
These live updates are now over.
8:30pm - The owner of a north Auckland coffee roastery says it's "really fortunate" no one was killed or seriously injured after an old oak tree came down on the building after strong winds overnight.
7:40pm - Officials are warning New Zealanders in the front's firing line to brace themselves for a possible metre of rain.
"It's not pretty - this is the last thing we need right now," said Thames-Coromandel Civil Defence controller Garry Towler.
"It's the next five to seven days that really concern us. We are planning now for perhaps a metre of rain in the next seven days, certainly 700mm-plus."
7pm - North Islanders are preparing for the worst as an 'atmospheric river' resurfaces memories of January's deadly floods.
"There are parts of the region that are certainly more vulnerable as a result of the anniversary floods and Cyclone Gabrielle so we are being as proactive as possible to make sure Aucklanders are prepared for the coming weather," Auckland Emergency Management duty controller Rachel Kelleher said.
6pm - The Hauraki Gulf Weather Twitter page reports there has been 50 to 150mm of rain across Northland today, with one gauge at Towai recording over 250mm so far.
5:15pm - MetService is asking Kiwis to keep an eye on the forecasts with more rain predicted next week.
"Could be a particularly wet one for some, especially the Bay of Plenty, Tasman and Westland regions," it warned.
4:40pm - Waka Kotahi NZ Transport Agency says the southbound lane on SH1 between Wellsford and Warkworth will be closed overnight due to an underslip.
"Crews are currently onsite and have already filled in 100 tonnes of material," a spokesperson said.
"Southbound traffic between Wellsford and Warkworth will be required to detour via State Highway 16. Detour via Port Albert Road, Kaipara Coast Highway, West Coast Road and Woodcocks Road."
4:20pm - Waka Kotahi is preparing to close the Auckland Harbour Bridge if necessary.
"At this stage, wind gusts have not exceeded threshold levels however we are constantly monitoring wind speeds, working closely with MetService," a spokesperson told Newshub.
"Maintenance crews are on the network ready to react and close lanes on the bridge if wind gusts do exceed these levels. The safety of road users is our top priority and we won't hesitate to reduce speeds, close lanes or close the bridge if necessary."
3:30pm - A coffee roastery north of Auckland has been severely damaged after an old oak tree came down.
Photos posted to Facebook by Rush Coffee, in the Te Arai region, show the damage.
"Our large oak tree has come down on the Roastery and put us out of action (there is substantial damage). Thankfully, no one was inside the building so no one is hurt," it wrote.
2:45pm - Southbound traffic on State Highway 1 between Warkworth and Wellsford has been forced to divert due to a slip in Dome Valley. The northbound lane still operates.
"Please use Woodcocks Rd, West Coast Rd, and SH16 between Warkworth and Wellsford. Please note this detour may add up to 40 minutes of travel time to your journey," Waka Kotahi NZTA Auckland and Northland posted.
2:35pm - A MetService graphic video shows some of the places with the highest rainfall accumulations today.
"While most of these are in Northland, this heavy rain continues southwards to the Coromandel Peninsula and the Bay of Plenty this afternoon, with lesser amounts expected for Auckland," it posted to Twitter.
1:10pm - The National Institute of Water and Atmospheric Research (NIWA) said a low will cause an "atmospheric river" to hit the North Island and will stick around for the week, "waxing and waning in intensity as it funnels moisture" from the tropics to New Zealand.
"Heavy rain is developing today and into tomorrow for parts of the North Island," it said.
"Our river modelling is showing that rivers will respond rapidly to this heavy rain."
11:50am - Weather warnings and watches have been issued for large parts of the North Island.
MetService said an orange heavy rain warning is in place for Northland, which could see 200mm of rain in just 24 hours. The warning is in place until 1am on Monday.
A warning is also in place for the Coromandel Peninsula, until 5pm on Monday, and the Bay of Plenty west of Kawerau, including Rotorua until 2am Monday.
A heavy rain warning is also in place for Tasman northwest of Motueka from 3pm on Monday until the same time on Tuesday.
MetService said the area should expect up to 140mm of rain in this time period with peak rates of 25mm/h from Monday evening.
"Heavy rain may cause streams and rivers to rise rapidly. Surface flooding and slips are also possible and driving conditions may be hazardous," Metservice said.
MetService has also issued a heavy rain watch for Auckland, including Great Barrier Island until 6am on Monday.
MetService warns between 60 and 90mm of rain is expected to fall in the Auckland region between Sunday and Monday and there is a chance of an isolated thunderstorm.
A heavy rain watch is also in place for the ranges of Bay of Plenty east of Te Kaha and Gisborne north of Tokomaru Bay from 1pm on Monday until 11pm on Tuesday.
A watch is also in place for the Bay of Plenty from Kawerau to Te Kaha from 3pm Monday until 8am Wednesday.
A strong wind watch is also in place for Northland, until 6pm on Sunday, Auckland about and north of Albany, including Great Barrier Island and the Coromandel Peninsula and eastern Waikato near the Coromandel and Kaimai ranges until 3am on Monday.
9:00am - MetService said there had been heavy falls recorded overnight, with 10mm in Kaikohe between 2-3am and 4-5am.
The forecaster added it's also been a windy 12 hours in Northland with gusts of 87km/h in Purerua, 76km/h in Whangārei and Kaitaia and 72km/h in Kaikohe.
8am - Civil Defence has instructed people to make "sure you've got a plan ready, in case the worst happens".
"We urge Aucklanders to keep an eye on weather forecasts this weekend and, if you live in an area prone to flooding or isolation, make sure you've got a plan to secure your property, shelter in place if you need to or know what you might need to do if evacuation is required," Auckland Emergency Management's Paul Amaral said on Friday afternoon.
People should carefully consider travel plans and remember to call 111 if their lives are in danger, he said.
There are fears this weekend's wild weather could be a repeat of the Auckland Anniversary weekend floods that saw the city's leadership, including Mayor Wayne Brown, come under fire for their response.
But Brown was on the front foot this weekend warning Aucklanders to be "mindful" and to "take care".
