Powerful gales attaining speeds of as high as 155km/h (96mph) have resulted in approximately 90,000 homes lacking electricity and compelled officials to cancel more than 100 flights, based on local media.
The gales are affecting the entire southern region and lower areas of the North Island, according to the national weather agency.
Officials in New Zealand have issued rare high-level wind alerts - the highest alert level - in core zones encompassing Wellington and Canterbury.
Residents have been advised to remain inside, stay off roads, and get ready for additional utility disruptions.
Extensive Damage and Emergency Measures
The power cut appears to be affecting households predominantly in the southern region, although agencies report that energy was being gradually reinstated.
Domestic outlets have stated that in some places structures have suffered roof damage, and power lines and trees have been knocked down by the gales.
In Wellington, a man was lost his life after being struck by a tree branch at a popular trail walking spot on Tuesday.
Additionally in the city, a individual was blown onto moving cars on a thoroughfare by a intensive burst, in a moment that was filmed in a viral dashcam video.
Aircraft services to and from the city have been cancelled because of the weather, while various routes and public facilities are also closed.
At the same time Canterbury officials have issued a crisis declaration, to facilitate emergency management operations.
Strike Action Alongside Severe Weather
These intense gusts on today occur while many of school staff, physicians and civil servants are engaged in what has been termed a "mega strike", calling for better pay and working conditions.
Yet the extreme weather has forced them to alter certain arrangements, with several external protests shifted to interior venues or called off.
Similar gusts are impacting the nearby nation, causing a high-temperature event to the country's outback.
Agencies have issued fire bans for apprehension regarding wildfires.
