Intense gales hitting velocities of as high as 155km/h (96mph) have left nearly 90,000 properties experiencing outages and forced authorities to cancel over 100 air travel services, based on domestic outlets.
The gales are impacting the entire South Island and southern sections of the northern region, as stated by the weather forecasting body.
The nation's agencies have announced uncommon high-level wind alerts - the most severe warning - in key areas such as Wellington and Canterbury.
People have been urged to remain inside, refrain from journeys, and get ready for further power and communication outages.
Extensive Impact and Crisis Measures
The power cut appears to be affecting households mainly in the South Island, while officials say that the electricity supply was being slowly brought back.
Regional news have reported that in some places structures have suffered roof damage, whereas power lines and trees have been brought down by the gusts.
Within the capital, a man was fatally injured after being struck by a tree branch at a popular trail walking spot on earlier this week.
Additionally in the city, a individual was pushed toward moving cars on a street by a intensive burst, in a incident that was filmed in a popular vehicle recording.
Aircraft services entering and leaving the city have been suspended because of the weather, whereas certain highways and community centers are also closed.
Simultaneously Canterbury officials have declared a state of emergency, to facilitate disaster response efforts.
Strike Action Amid Severe Conditions
The wild winds on this day coincide with many of teachers, doctors and other public workers are engaged in what has been called a "major walkout", calling for higher wages and enhanced employment terms.
But the extreme weather has forced them to modify some of their plans, with several external protests moved indoors or called off.
Comparable winds are also sweeping the nearby nation, bringing a period of extreme heat to the country's outback.
Agencies have announced flame prohibitions for fear of wildfires.
