Intense gusts attaining velocities of up to 155km/h (96mph) have caused nearly 90,000 properties without power and compelled authorities to cancel over 100 aircraft departures, based on local media.
The gales are influencing the complete South Island and southern sections of the North Island, as stated by the country's meteorological service.
The nation's agencies have released rare high-level wind alerts - the most severe warning - in core zones including Canterbury and Wellington.
Residents have been advised to stay indoors, refrain from journeys, and prepare for further power and communication outages.
Extensive Damage and Crisis Measures
This outage appears to be affecting households predominantly in the South Island, while agencies report that power was being restored progressively.
Local media have stated that in various locations structures have suffered roof damage, whereas power lines and trees have been toppled by the gusts.
Across Wellington, a person was killed after being hit by a wooden fragment at a frequent walking route on earlier this week.
Meanwhile in Wellington, a individual was swept into oncoming traffic on a road by a intensive burst, in a event that was recorded in a popular vehicle recording.
Air travel in and out of the metropolis have been suspended as a result of the gusts, while various routes and public facilities are not operating.
Simultaneously Canterbury officials have announced a state of emergency, to facilitate recovery activities.
Strike Action Amid Extreme Weather
These intense gusts on Thursday coincide with tens of thousands of educators, medical professionals and government employees are engaged in what has been called a "major walkout", requesting better pay and working conditions.
But the severe conditions has compelled them to modify some of their plans, with various open-air gatherings moved indoors or cancelled.
Like conditions are impacting the neighboring country, ushering in a high-temperature event to the country's outback.
Agencies have declared fire bans for fear of wildfires.
