Massive storm damage across NZ

It has been a terrifying start to Wednesday for Aucklanders as the massive storm pummels the region.

Winds speeds of more than 120km/h slammed the supercity overnight. The biggest gust of 213km/h was recorded at Manukau Heads.

Multiple homes have been severely damaged by fallen trees while collapsed power lines caused spectacular light shows across Auckland.

What you need to know:

  • Auckland is experiencing extremely strong winds 
  • 100,000 properties are without power
  • Some public transport services are not running
  • Multiple homes and cars have been severely damaged by fallen trees
  • Flights in and out of Auckland Airport delayed or turned away

8:35am - More storm gusts in store for North Island

"Across the North Island today, winds will remain gusty but not nearly as strong or destructive as Tuesday," NIWA says on Twitter.

"With damp grounds, it may not take as much to bring down smaller trees or branches."

08:15am - What you need to know about the storm

Auckland has been blasted by a terrifying storm. Winds the strength of a category two cyclone have downed trees, powerlines and caused widespread damage across the city.

At the height of the storm, emergency services had more than 1600 calls within six hours.

Vector's response crews have worked through the night to restore power to homes and businesses affected by the more than 150 outages across the region.

"Work will continue this morning to assess the damage caused to power lines and other infrastructure and to restore power where it is possible and safe to do so," a Vector spokesperson says.

"While every effort is being made to restore power for everyone as quickly as possible, this may take some time.

"Please always treat downed lines as live and stay well clear."